vendor: update docker/cli to f1615fa

also needs to update docker/docker to a60b458 (22.06 branch) otherwise
build breaks since docker/cli#3512 with:

    # github.com/docker/cli/cli/flags
    vendor/github.com/docker/cli/cli/flags/common.go:40:37: undefined: client.EnvOverrideCertPath
    vendor/github.com/docker/cli/cli/flags/common.go:41:37: undefined: client.EnvTLSVerify
    vendor/github.com/docker/cli/cli/flags/common.go:89:76: undefined: client.EnvOverrideHost

needs also to update github.com/spf13/cobra to v1.5.0 otherwise
build breaks with:

    # github.com/docker/cli/cli-plugins/plugin
    vendor/github.com/docker/cli/cli-plugins/plugin/plugin.go:130:4: unknown field 'HiddenDefaultCmd' in struct literal of type cobra.CompletionOptions

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>
This commit is contained in:
CrazyMax
2022-07-22 10:53:15 +02:00
parent 701c548e46
commit b0deb8bdd7
199 changed files with 4116 additions and 3933 deletions

View File

@ -1,51 +0,0 @@
# Cobra Changelog
## v1.1.3
* **Fix:** release-branch.cobra1.1 only: Revert "Deprecate Go < 1.14" to maintain backward compatibility
## v1.1.2
### Notable Changes
* Bump license year to 2021 in golden files (#1309) @Bowbaq
* Enhance PowerShell completion with custom comp (#1208) @Luap99
* Update gopkg.in/yaml.v2 to v2.4.0: The previous breaking change in yaml.v2 v2.3.0 has been reverted, see go-yaml/yaml#670
* Documentation readability improvements (#1228 etc.) @zaataylor etc.
* Use golangci-lint: Repair warnings and errors resulting from linting (#1044) @umarcor
## v1.1.1
* **Fix:** yaml.v2 2.3.0 contained a unintended breaking change. This release reverts to yaml.v2 v2.2.8 which has recent critical CVE fixes, but does not have the breaking changes. See https://github.com/spf13/cobra/pull/1259 for context.
* **Fix:** correct internal formatting for go-md2man v2 (which caused man page generation to be broken). See https://github.com/spf13/cobra/issues/1049 for context.
## v1.1.0
### Notable Changes
* Extend Go completions and revamp zsh comp (#1070)
* Fix man page doc generation - no auto generated tag when `cmd.DisableAutoGenTag = true` (#1104) @jpmcb
* Add completion for help command (#1136)
* Complete subcommands when TraverseChildren is set (#1171)
* Fix stderr printing functions (#894)
* fix: fish output redirection (#1247)
## v1.0.0
Announcing v1.0.0 of Cobra. 🎉
### Notable Changes
* Fish completion (including support for Go custom completion) @marckhouzam
* API (urgent): Rename BashCompDirectives to ShellCompDirectives @marckhouzam
* Remove/replace SetOutput on Command - deprecated @jpmcb
* add support for autolabel stale PR @xchapter7x
* Add Labeler Actions @xchapter7x
* Custom completions coded in Go (instead of Bash) @marckhouzam
* Partial Revert of #922 @jharshman
* Add Makefile to project @jharshman
* Correct documentation for InOrStdin @desponda
* Apply formatting to templates @jharshman
* Revert change so help is printed on stdout again @marckhouzam
* Update md2man to v2.0.0 @pdf
* update viper to v1.4.0 @umarcor
* Update cmd/root.go example in README.md @jharshman

13
vendor/github.com/spf13/cobra/MAINTAINERS generated vendored Normal file
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@ -0,0 +1,13 @@
maintainers:
- spf13
- johnSchnake
- jpmcb
- marckhouzam
inactive:
- anthonyfok
- bep
- bogem
- broady
- eparis
- jharshman
- wfernandes

View File

@ -9,11 +9,11 @@ ifeq (, $(shell which richgo))
$(warning "could not find richgo in $(PATH), run: go get github.com/kyoh86/richgo")
endif
.PHONY: fmt lint test cobra_generator install_deps clean
.PHONY: fmt lint test install_deps clean
default: all
all: fmt test cobra_generator
all: fmt test
fmt:
$(info ******************** checking formatting ********************)
@ -23,15 +23,10 @@ lint:
$(info ******************** running lint tools ********************)
golangci-lint run -v
test: install_deps lint
test: install_deps
$(info ******************** running tests ********************)
richgo test -v ./...
cobra_generator: install_deps
$(info ******************** building generator ********************)
mkdir -p $(BIN)
make -C cobra all
install_deps:
$(info ******************** downloading dependencies ********************)
go get -v ./...

View File

@ -1,52 +1,26 @@
![cobra logo](https://cloud.githubusercontent.com/assets/173412/10886352/ad566232-814f-11e5-9cd0-aa101788c117.png)
Cobra is both a library for creating powerful modern CLI applications as well as a program to generate applications and command files.
Cobra is a library for creating powerful modern CLI applications.
Cobra is used in many Go projects such as [Kubernetes](http://kubernetes.io/),
Cobra is used in many Go projects such as [Kubernetes](https://kubernetes.io/),
[Hugo](https://gohugo.io), and [Github CLI](https://github.com/cli/cli) to
name a few. [This list](./projects_using_cobra.md) contains a more extensive list of projects using Cobra.
[![](https://img.shields.io/github/workflow/status/spf13/cobra/Test?longCache=tru&label=Test&logo=github%20actions&logoColor=fff)](https://github.com/spf13/cobra/actions?query=workflow%3ATest)
[![GoDoc](https://godoc.org/github.com/spf13/cobra?status.svg)](https://godoc.org/github.com/spf13/cobra)
[![Go Reference](https://pkg.go.dev/badge/github.com/spf13/cobra.svg)](https://pkg.go.dev/github.com/spf13/cobra)
[![Go Report Card](https://goreportcard.com/badge/github.com/spf13/cobra)](https://goreportcard.com/report/github.com/spf13/cobra)
[![Slack](https://img.shields.io/badge/Slack-cobra-brightgreen)](https://gophers.slack.com/archives/CD3LP1199)
# Table of Contents
- [Overview](#overview)
- [Concepts](#concepts)
* [Commands](#commands)
* [Flags](#flags)
- [Installing](#installing)
- [Usage](#usage)
* [Using the Cobra Generator](user_guide.md#using-the-cobra-generator)
* [Using the Cobra Library](user_guide.md#using-the-cobra-library)
* [Working with Flags](user_guide.md#working-with-flags)
* [Positional and Custom Arguments](user_guide.md#positional-and-custom-arguments)
* [Example](user_guide.md#example)
* [Help Command](user_guide.md#help-command)
* [Usage Message](user_guide.md#usage-message)
* [PreRun and PostRun Hooks](user_guide.md#prerun-and-postrun-hooks)
* [Suggestions when "unknown command" happens](user_guide.md#suggestions-when-unknown-command-happens)
* [Generating documentation for your command](user_guide.md#generating-documentation-for-your-command)
* [Generating shell completions](user_guide.md#generating-shell-completions)
- [Contributing](CONTRIBUTING.md)
- [License](#license)
# Overview
Cobra is a library providing a simple interface to create powerful modern CLI
interfaces similar to git & go tools.
Cobra is also an application that will generate your application scaffolding to rapidly
develop a Cobra-based application.
Cobra provides:
* Easy subcommand-based CLIs: `app server`, `app fetch`, etc.
* Fully POSIX-compliant flags (including short & long versions)
* Nested subcommands
* Global, local and cascading flags
* Easy generation of applications & commands with `cobra init appname` & `cobra add cmdname`
* Intelligent suggestions (`app srver`... did you mean `app server`?)
* Automatic help generation for commands and flags
* Automatic help flag recognition of `-h`, `--help`, etc.
@ -54,7 +28,7 @@ Cobra provides:
* Automatically generated man pages for your application
* Command aliases so you can change things without breaking them
* The flexibility to define your own help, usage, etc.
* Optional tight integration with [viper](http://github.com/spf13/viper) for 12-factor apps
* Optional seamless integration with [viper](https://github.com/spf13/viper) for 12-factor apps
# Concepts
@ -88,7 +62,7 @@ have children commands and optionally run an action.
In the example above, 'server' is the command.
[More about cobra.Command](https://godoc.org/github.com/spf13/cobra#Command)
[More about cobra.Command](https://pkg.go.dev/github.com/spf13/cobra#Command)
## Flags
@ -105,10 +79,11 @@ which maintains the same interface while adding POSIX compliance.
# Installing
Using Cobra is easy. First, use `go get` to install the latest version
of the library. This command will install the `cobra` generator executable
along with the library and its dependencies:
of the library.
go get -u github.com/spf13/cobra
```
go get -u github.com/spf13/cobra@latest
```
Next, include Cobra in your application:
@ -117,8 +92,19 @@ import "github.com/spf13/cobra"
```
# Usage
`cobra-cli` is a command line program to generate cobra applications and command files.
It will bootstrap your application scaffolding to rapidly
develop a Cobra-based application. It is the easiest way to incorporate Cobra into your application.
See [User Guide](user_guide.md).
It can be installed by running:
```
go install github.com/spf13/cobra-cli@latest
```
For complete details on using the Cobra-CLI generator, please read [The Cobra Generator README](https://github.com/spf13/cobra-cli/blob/main/README.md)
For complete details on using the Cobra library, please read the [The Cobra User Guide](user_guide.md).
# License

49
vendor/github.com/spf13/cobra/active_help.go generated vendored Normal file
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@ -0,0 +1,49 @@
package cobra
import (
"fmt"
"os"
"strings"
)
const (
activeHelpMarker = "_activeHelp_ "
// The below values should not be changed: programs will be using them explicitly
// in their user documentation, and users will be using them explicitly.
activeHelpEnvVarSuffix = "_ACTIVE_HELP"
activeHelpGlobalEnvVar = "COBRA_ACTIVE_HELP"
activeHelpGlobalDisable = "0"
)
// AppendActiveHelp adds the specified string to the specified array to be used as ActiveHelp.
// Such strings will be processed by the completion script and will be shown as ActiveHelp
// to the user.
// The array parameter should be the array that will contain the completions.
// This function can be called multiple times before and/or after completions are added to
// the array. Each time this function is called with the same array, the new
// ActiveHelp line will be shown below the previous ones when completion is triggered.
func AppendActiveHelp(compArray []string, activeHelpStr string) []string {
return append(compArray, fmt.Sprintf("%s%s", activeHelpMarker, activeHelpStr))
}
// GetActiveHelpConfig returns the value of the ActiveHelp environment variable
// <PROGRAM>_ACTIVE_HELP where <PROGRAM> is the name of the root command in upper
// case, with all - replaced by _.
// It will always return "0" if the global environment variable COBRA_ACTIVE_HELP
// is set to "0".
func GetActiveHelpConfig(cmd *Command) string {
activeHelpCfg := os.Getenv(activeHelpGlobalEnvVar)
if activeHelpCfg != activeHelpGlobalDisable {
activeHelpCfg = os.Getenv(activeHelpEnvVar(cmd.Root().Name()))
}
return activeHelpCfg
}
// activeHelpEnvVar returns the name of the program-specific ActiveHelp environment
// variable. It has the format <PROGRAM>_ACTIVE_HELP where <PROGRAM> is the name of the
// root command in upper case, with all - replaced by _.
func activeHelpEnvVar(name string) string {
// This format should not be changed: users will be using it explicitly.
activeHelpEnvVar := strings.ToUpper(fmt.Sprintf("%s%s", name, activeHelpEnvVarSuffix))
return strings.ReplaceAll(activeHelpEnvVar, "-", "_")
}

157
vendor/github.com/spf13/cobra/active_help.md generated vendored Normal file
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@ -0,0 +1,157 @@
# Active Help
Active Help is a framework provided by Cobra which allows a program to define messages (hints, warnings, etc) that will be printed during program usage. It aims to make it easier for your users to learn how to use your program. If configured by the program, Active Help is printed when the user triggers shell completion.
For example,
```
bash-5.1$ helm repo add [tab]
You must choose a name for the repo you are adding.
bash-5.1$ bin/helm package [tab]
Please specify the path to the chart to package
bash-5.1$ bin/helm package [tab][tab]
bin/ internal/ scripts/ pkg/ testdata/
```
**Hint**: A good place to use Active Help messages is when the normal completion system does not provide any suggestions. In such cases, Active Help nicely supplements the normal shell completions to guide the user in knowing what is expected by the program.
## Supported shells
Active Help is currently only supported for the following shells:
- Bash (using [bash completion V2](shell_completions.md#bash-completion-v2) only). Note that bash 4.4 or higher is required for the prompt to appear when an Active Help message is printed.
- Zsh
## Adding Active Help messages
As Active Help uses the shell completion system, the implementation of Active Help messages is done by enhancing custom dynamic completions. If you are not familiar with dynamic completions, please refer to [Shell Completions](shell_completions.md).
Adding Active Help is done through the use of the `cobra.AppendActiveHelp(...)` function, where the program repeatedly adds Active Help messages to the list of completions. Keep reading for details.
### Active Help for nouns
Adding Active Help when completing a noun is done within the `ValidArgsFunction(...)` of a command. Please notice the use of `cobra.AppendActiveHelp(...)` in the following example:
```go
cmd := &cobra.Command{
Use: "add [NAME] [URL]",
Short: "add a chart repository",
Args: require.ExactArgs(2),
RunE: func(cmd *cobra.Command, args []string) error {
return addRepo(args)
},
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
var comps []string
if len(args) == 0 {
comps = cobra.AppendActiveHelp(comps, "You must choose a name for the repo you are adding")
} else if len(args) == 1 {
comps = cobra.AppendActiveHelp(comps, "You must specify the URL for the repo you are adding")
} else {
comps = cobra.AppendActiveHelp(comps, "This command does not take any more arguments")
}
return comps, cobra.ShellCompDirectiveNoFileComp
},
}
```
The example above defines the completions (none, in this specific example) as well as the Active Help messages for the `helm repo add` command. It yields the following behavior:
```
bash-5.1$ helm repo add [tab]
You must choose a name for the repo you are adding
bash-5.1$ helm repo add grafana [tab]
You must specify the URL for the repo you are adding
bash-5.1$ helm repo add grafana https://grafana.github.io/helm-charts [tab]
This command does not take any more arguments
```
**Hint**: As can be seen in the above example, a good place to use Active Help messages is when the normal completion system does not provide any suggestions. In such cases, Active Help nicely supplements the normal shell completions.
### Active Help for flags
Providing Active Help for flags is done in the same fashion as for nouns, but using the completion function registered for the flag. For example:
```go
_ = cmd.RegisterFlagCompletionFunc("version", func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
if len(args) != 2 {
return cobra.AppendActiveHelp(nil, "You must first specify the chart to install before the --version flag can be completed"), cobra.ShellCompDirectiveNoFileComp
}
return compVersionFlag(args[1], toComplete)
})
```
The example above prints an Active Help message when not enough information was given by the user to complete the `--version` flag.
```
bash-5.1$ bin/helm install myrelease --version 2.0.[tab]
You must first specify the chart to install before the --version flag can be completed
bash-5.1$ bin/helm install myrelease bitnami/solr --version 2.0.[tab][tab]
2.0.1 2.0.2 2.0.3
```
## User control of Active Help
You may want to allow your users to disable Active Help or choose between different levels of Active Help. It is entirely up to the program to define the type of configurability of Active Help that it wants to offer, if any.
Allowing to configure Active Help is entirely optional; you can use Active Help in your program without doing anything about Active Help configuration.
The way to configure Active Help is to use the program's Active Help environment
variable. That variable is named `<PROGRAM>_ACTIVE_HELP` where `<PROGRAM>` is the name of your
program in uppercase with any `-` replaced by an `_`. The variable should be set by the user to whatever
Active Help configuration values are supported by the program.
For example, say `helm` has chosen to support three levels for Active Help: `on`, `off`, `local`. Then a user
would set the desired behavior to `local` by doing `export HELM_ACTIVE_HELP=local` in their shell.
For simplicity, when in `cmd.ValidArgsFunction(...)` or a flag's completion function, the program should read the
Active Help configuration using the `cobra.GetActiveHelpConfig(cmd)` function and select what Active Help messages
should or should not be added (instead of reading the environment variable directly).
For example:
```go
ValidArgsFunction: func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
activeHelpLevel := cobra.GetActiveHelpConfig(cmd)
var comps []string
if len(args) == 0 {
if activeHelpLevel != "off" {
comps = cobra.AppendActiveHelp(comps, "You must choose a name for the repo you are adding")
}
} else if len(args) == 1 {
if activeHelpLevel != "off" {
comps = cobra.AppendActiveHelp(comps, "You must specify the URL for the repo you are adding")
}
} else {
if activeHelpLevel == "local" {
comps = cobra.AppendActiveHelp(comps, "This command does not take any more arguments")
}
}
return comps, cobra.ShellCompDirectiveNoFileComp
},
```
**Note 1**: If the `<PROGRAM>_ACTIVE_HELP` environment variable is set to the string "0", Cobra will automatically disable all Active Help output (even if some output was specified by the program using the `cobra.AppendActiveHelp(...)` function). Using "0" can simplify your code in situations where you want to blindly disable Active Help without having to call `cobra.GetActiveHelpConfig(cmd)` explicitly.
**Note 2**: If a user wants to disable Active Help for every single program based on Cobra, she can set the environment variable `COBRA_ACTIVE_HELP` to "0". In this case `cobra.GetActiveHelpConfig(cmd)` will return "0" no matter what the variable `<PROGRAM>_ACTIVE_HELP` is set to.
**Note 3**: If the user does not set `<PROGRAM>_ACTIVE_HELP` or `COBRA_ACTIVE_HELP` (which will be a common case), the default value for the Active Help configuration returned by `cobra.GetActiveHelpConfig(cmd)` will be the empty string.
## Active Help with Cobra's default completion command
Cobra provides a default `completion` command for programs that wish to use it.
When using the default `completion` command, Active Help is configurable in the same
fashion as described above using environment variables. You may wish to document this in more
details for your users.
## Debugging Active Help
Debugging your Active Help code is done in the same way as debugging your dynamic completion code, which is with Cobra's hidden `__complete` command. Please refer to [debugging shell completion](shell_completions.md#debugging) for details.
When debugging with the `__complete` command, if you want to specify different Active Help configurations, you should use the active help environment variable. That variable is named `<PROGRAM>_ACTIVE_HELP` where any `-` is replaced by an `_`. For example, we can test deactivating some Active Help as shown below:
```
$ HELM_ACTIVE_HELP=1 bin/helm __complete install wordpress bitnami/h<ENTER>
bitnami/haproxy
bitnami/harbor
_activeHelp_ WARNING: cannot re-use a name that is still in use
:0
Completion ended with directive: ShellCompDirectiveDefault
$ HELM_ACTIVE_HELP=0 bin/helm __complete install wordpress bitnami/h<ENTER>
bitnami/haproxy
bitnami/harbor
:0
Completion ended with directive: ShellCompDirectiveDefault
```

View File

@ -107,3 +107,15 @@ func RangeArgs(min int, max int) PositionalArgs {
return nil
}
}
// MatchAll allows combining several PositionalArgs to work in concert.
func MatchAll(pargs ...PositionalArgs) PositionalArgs {
return func(cmd *Command, args []string) error {
for _, parg := range pargs {
if err := parg(cmd, args); err != nil {
return err
}
}
return nil
}
}

View File

@ -24,7 +24,7 @@ func writePreamble(buf io.StringWriter, name string) {
WriteStringAndCheck(buf, fmt.Sprintf(`
__%[1]s_debug()
{
if [[ -n ${BASH_COMP_DEBUG_FILE} ]]; then
if [[ -n ${BASH_COMP_DEBUG_FILE:-} ]]; then
echo "$*" >> "${BASH_COMP_DEBUG_FILE}"
fi
}
@ -73,7 +73,8 @@ __%[1]s_handle_go_custom_completion()
# Prepare the command to request completions for the program.
# Calling ${words[0]} instead of directly %[1]s allows to handle aliases
args=("${words[@]:1}")
requestComp="${words[0]} %[2]s ${args[*]}"
# Disable ActiveHelp which is not supported for bash completion v1
requestComp="%[8]s=0 ${words[0]} %[2]s ${args[*]}"
lastParam=${words[$((${#words[@]}-1))]}
lastChar=${lastParam:$((${#lastParam}-1)):1}
@ -99,7 +100,7 @@ __%[1]s_handle_go_custom_completion()
directive=0
fi
__%[1]s_debug "${FUNCNAME[0]}: the completion directive is: ${directive}"
__%[1]s_debug "${FUNCNAME[0]}: the completions are: ${out[*]}"
__%[1]s_debug "${FUNCNAME[0]}: the completions are: ${out}"
if [ $((directive & shellCompDirectiveError)) -ne 0 ]; then
# Error code. No completion.
@ -125,7 +126,7 @@ __%[1]s_handle_go_custom_completion()
local fullFilter filter filteringCmd
# Do not use quotes around the $out variable or else newline
# characters will be kept.
for filter in ${out[*]}; do
for filter in ${out}; do
fullFilter+="$filter|"
done
@ -134,9 +135,9 @@ __%[1]s_handle_go_custom_completion()
$filteringCmd
elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then
# File completion for directories only
local subDir
local subdir
# Use printf to strip any trailing newline
subdir=$(printf "%%s" "${out[0]}")
subdir=$(printf "%%s" "${out}")
if [ -n "$subdir" ]; then
__%[1]s_debug "Listing directories in $subdir"
__%[1]s_handle_subdirs_in_dir_flag "$subdir"
@ -147,7 +148,7 @@ __%[1]s_handle_go_custom_completion()
else
while IFS='' read -r comp; do
COMPREPLY+=("$comp")
done < <(compgen -W "${out[*]}" -- "$cur")
done < <(compgen -W "${out}" -- "$cur")
fi
}
@ -187,13 +188,19 @@ __%[1]s_handle_reply()
PREFIX=""
cur="${cur#*=}"
${flags_completion[${index}]}
if [ -n "${ZSH_VERSION}" ]; then
if [ -n "${ZSH_VERSION:-}" ]; then
# zsh completion needs --flag= prefix
eval "COMPREPLY=( \"\${COMPREPLY[@]/#/${flag}=}\" )"
fi
fi
fi
return 0;
if [[ -z "${flag_parsing_disabled}" ]]; then
# If flag parsing is enabled, we have completed the flags and can return.
# If flag parsing is disabled, we may not know all (or any) of the flags, so we fallthrough
# to possibly call handle_go_custom_completion.
return 0;
fi
;;
esac
@ -232,13 +239,13 @@ __%[1]s_handle_reply()
fi
if [[ ${#COMPREPLY[@]} -eq 0 ]]; then
if declare -F __%[1]s_custom_func >/dev/null; then
# try command name qualified custom func
__%[1]s_custom_func
else
# otherwise fall back to unqualified for compatibility
declare -F __custom_func >/dev/null && __custom_func
fi
if declare -F __%[1]s_custom_func >/dev/null; then
# try command name qualified custom func
__%[1]s_custom_func
else
# otherwise fall back to unqualified for compatibility
declare -F __custom_func >/dev/null && __custom_func
fi
fi
# available in bash-completion >= 2, not always present on macOS
@ -272,7 +279,7 @@ __%[1]s_handle_flag()
# if a command required a flag, and we found it, unset must_have_one_flag()
local flagname=${words[c]}
local flagvalue
local flagvalue=""
# if the word contained an =
if [[ ${words[c]} == *"="* ]]; then
flagvalue=${flagname#*=} # take in as flagvalue after the =
@ -291,7 +298,7 @@ __%[1]s_handle_flag()
# keep flag value with flagname as flaghash
# flaghash variable is an associative array which is only supported in bash > 3.
if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then
if [[ -z "${BASH_VERSION:-}" || "${BASH_VERSINFO[0]:-}" -gt 3 ]]; then
if [ -n "${flagvalue}" ] ; then
flaghash[${flagname}]=${flagvalue}
elif [ -n "${words[ $((c+1)) ]}" ] ; then
@ -303,7 +310,7 @@ __%[1]s_handle_flag()
# skip the argument to a two word flag
if [[ ${words[c]} != *"="* ]] && __%[1]s_contains_word "${words[c]}" "${two_word_flags[@]}"; then
__%[1]s_debug "${FUNCNAME[0]}: found a flag ${words[c]}, skip the next argument"
__%[1]s_debug "${FUNCNAME[0]}: found a flag ${words[c]}, skip the next argument"
c=$((c+1))
# if we are looking for a flags value, don't show commands
if [[ $c -eq $cword ]]; then
@ -363,7 +370,7 @@ __%[1]s_handle_word()
__%[1]s_handle_command
elif __%[1]s_contains_word "${words[c]}" "${command_aliases[@]}"; then
# aliashash variable is an associative array which is only supported in bash > 3.
if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then
if [[ -z "${BASH_VERSION:-}" || "${BASH_VERSINFO[0]:-}" -gt 3 ]]; then
words[c]=${aliashash[${words[c]}]}
__%[1]s_handle_command
else
@ -377,11 +384,11 @@ __%[1]s_handle_word()
`, name, ShellCompNoDescRequestCmd,
ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs))
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, activeHelpEnvVar(name)))
}
func writePostscript(buf io.StringWriter, name string) {
name = strings.Replace(name, ":", "__", -1)
name = strings.ReplaceAll(name, ":", "__")
WriteStringAndCheck(buf, fmt.Sprintf("__start_%s()\n", name))
WriteStringAndCheck(buf, fmt.Sprintf(`{
local cur prev words cword split
@ -394,6 +401,7 @@ func writePostscript(buf io.StringWriter, name string) {
fi
local c=0
local flag_parsing_disabled=
local flags=()
local two_word_flags=()
local local_nonpersistent_flags=()
@ -403,8 +411,8 @@ func writePostscript(buf io.StringWriter, name string) {
local command_aliases=()
local must_have_one_flag=()
local must_have_one_noun=()
local has_completion_function
local last_command
local has_completion_function=""
local last_command=""
local nouns=()
local noun_aliases=()
@ -535,6 +543,11 @@ func writeFlags(buf io.StringWriter, cmd *Command) {
flags_completion=()
`)
if cmd.DisableFlagParsing {
WriteStringAndCheck(buf, " flag_parsing_disabled=1\n")
}
localNonPersistentFlags := cmd.LocalNonPersistentFlags()
cmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
if nonCompletableFlag(flag) {
@ -609,7 +622,7 @@ func writeCmdAliases(buf io.StringWriter, cmd *Command) {
sort.Strings(cmd.Aliases)
WriteStringAndCheck(buf, fmt.Sprint(` if [[ -z "${BASH_VERSION}" || "${BASH_VERSINFO[0]}" -gt 3 ]]; then`, "\n"))
WriteStringAndCheck(buf, fmt.Sprint(` if [[ -z "${BASH_VERSION:-}" || "${BASH_VERSINFO[0]:-}" -gt 3 ]]; then`, "\n"))
for _, value := range cmd.Aliases {
WriteStringAndCheck(buf, fmt.Sprintf(" command_aliases+=(%q)\n", value))
WriteStringAndCheck(buf, fmt.Sprintf(" aliashash[%q]=%q\n", value, cmd.Name()))
@ -633,8 +646,8 @@ func gen(buf io.StringWriter, cmd *Command) {
gen(buf, c)
}
commandName := cmd.CommandPath()
commandName = strings.Replace(commandName, " ", "_", -1)
commandName = strings.Replace(commandName, ":", "__", -1)
commandName = strings.ReplaceAll(commandName, " ", "_")
commandName = strings.ReplaceAll(commandName, ":", "__")
if cmd.Root() == cmd {
WriteStringAndCheck(buf, fmt.Sprintf("_%s_root_command()\n{\n", commandName))

View File

@ -78,7 +78,7 @@ __%[1]s_get_completion_results() {
directive=0
fi
__%[1]s_debug "The completion directive is: ${directive}"
__%[1]s_debug "The completions are: ${out[*]}"
__%[1]s_debug "The completions are: ${out}"
}
__%[1]s_process_completion_results() {
@ -111,13 +111,18 @@ __%[1]s_process_completion_results() {
fi
fi
# Separate activeHelp from normal completions
local completions=()
local activeHelp=()
__%[1]s_extract_activeHelp
if [ $((directive & shellCompDirectiveFilterFileExt)) -ne 0 ]; then
# File extension filtering
local fullFilter filter filteringCmd
# Do not use quotes around the $out variable or else newline
# Do not use quotes around the $completions variable or else newline
# characters will be kept.
for filter in ${out[*]}; do
for filter in ${completions[*]}; do
fullFilter+="$filter|"
done
@ -129,7 +134,7 @@ __%[1]s_process_completion_results() {
# Use printf to strip any trailing newline
local subdir
subdir=$(printf "%%s" "${out[0]}")
subdir=$(printf "%%s" "${completions[0]}")
if [ -n "$subdir" ]; then
__%[1]s_debug "Listing directories in $subdir"
pushd "$subdir" >/dev/null 2>&1 && _filedir -d && popd >/dev/null 2>&1 || return
@ -138,52 +143,110 @@ __%[1]s_process_completion_results() {
_filedir -d
fi
else
__%[1]s_handle_standard_completion_case
__%[1]s_handle_completion_types
fi
__%[1]s_handle_special_char "$cur" :
__%[1]s_handle_special_char "$cur" =
# Print the activeHelp statements before we finish
if [ ${#activeHelp} -ne 0 ]; then
printf "\n";
printf "%%s\n" "${activeHelp[@]}"
printf "\n"
# The prompt format is only available from bash 4.4.
# We test if it is available before using it.
if (x=${PS1@P}) 2> /dev/null; then
printf "%%s" "${PS1@P}${COMP_LINE[@]}"
else
# Can't print the prompt. Just print the
# text the user had typed, it is workable enough.
printf "%%s" "${COMP_LINE[@]}"
fi
fi
}
# Separate activeHelp lines from real completions.
# Fills the $activeHelp and $completions arrays.
__%[1]s_extract_activeHelp() {
local activeHelpMarker="%[8]s"
local endIndex=${#activeHelpMarker}
while IFS='' read -r comp; do
if [ "${comp:0:endIndex}" = "$activeHelpMarker" ]; then
comp=${comp:endIndex}
__%[1]s_debug "ActiveHelp found: $comp"
if [ -n "$comp" ]; then
activeHelp+=("$comp")
fi
else
# Not an activeHelp line but a normal completion
completions+=("$comp")
fi
done < <(printf "%%s\n" "${out}")
}
__%[1]s_handle_completion_types() {
__%[1]s_debug "__%[1]s_handle_completion_types: COMP_TYPE is $COMP_TYPE"
case $COMP_TYPE in
37|42)
# Type: menu-complete/menu-complete-backward and insert-completions
# If the user requested inserting one completion at a time, or all
# completions at once on the command-line we must remove the descriptions.
# https://github.com/spf13/cobra/issues/1508
local tab=$'\t' comp
while IFS='' read -r comp; do
[[ -z $comp ]] && continue
# Strip any description
comp=${comp%%%%$tab*}
# Only consider the completions that match
if [[ $comp == "$cur"* ]]; then
COMPREPLY+=("$comp")
fi
done < <(printf "%%s\n" "${completions[@]}")
;;
*)
# Type: complete (normal completion)
__%[1]s_handle_standard_completion_case
;;
esac
}
__%[1]s_handle_standard_completion_case() {
local tab comp
tab=$(printf '\t')
local tab=$'\t' comp
# Short circuit to optimize if we don't have descriptions
if [[ "${completions[*]}" != *$tab* ]]; then
IFS=$'\n' read -ra COMPREPLY -d '' < <(compgen -W "${completions[*]}" -- "$cur")
return 0
fi
local longest=0
local compline
# Look for the longest completion so that we can format things nicely
while IFS='' read -r comp; do
while IFS='' read -r compline; do
[[ -z $compline ]] && continue
# Strip any description before checking the length
comp=${comp%%%%$tab*}
comp=${compline%%%%$tab*}
# Only consider the completions that match
comp=$(compgen -W "$comp" -- "$cur")
[[ $comp == "$cur"* ]] || continue
COMPREPLY+=("$compline")
if ((${#comp}>longest)); then
longest=${#comp}
fi
done < <(printf "%%s\n" "${out[@]}")
local completions=()
while IFS='' read -r comp; do
if [ -z "$comp" ]; then
continue
fi
__%[1]s_debug "Original comp: $comp"
comp="$(__%[1]s_format_comp_descriptions "$comp" "$longest")"
__%[1]s_debug "Final comp: $comp"
completions+=("$comp")
done < <(printf "%%s\n" "${out[@]}")
while IFS='' read -r comp; do
COMPREPLY+=("$comp")
done < <(compgen -W "${completions[*]}" -- "$cur")
done < <(printf "%%s\n" "${completions[@]}")
# If there is a single completion left, remove the description text
if [ ${#COMPREPLY[*]} -eq 1 ]; then
__%[1]s_debug "COMPREPLY[0]: ${COMPREPLY[0]}"
comp="${COMPREPLY[0]%%%% *}"
comp="${COMPREPLY[0]%%%%$tab*}"
__%[1]s_debug "Removed description from single completion, which is now: ${comp}"
COMPREPLY=()
COMPREPLY+=("$comp")
COMPREPLY[0]=$comp
else # Format the descriptions
__%[1]s_format_comp_descriptions $longest
fi
}
@ -202,45 +265,48 @@ __%[1]s_handle_special_char()
__%[1]s_format_comp_descriptions()
{
local tab
tab=$(printf '\t')
local comp="$1"
local longest=$2
local tab=$'\t'
local comp desc maxdesclength
local longest=$1
# Properly format the description string which follows a tab character if there is one
if [[ "$comp" == *$tab* ]]; then
desc=${comp#*$tab}
comp=${comp%%%%$tab*}
local i ci
for ci in ${!COMPREPLY[*]}; do
comp=${COMPREPLY[ci]}
# Properly format the description string which follows a tab character if there is one
if [[ "$comp" == *$tab* ]]; then
__%[1]s_debug "Original comp: $comp"
desc=${comp#*$tab}
comp=${comp%%%%$tab*}
# $COLUMNS stores the current shell width.
# Remove an extra 4 because we add 2 spaces and 2 parentheses.
maxdesclength=$(( COLUMNS - longest - 4 ))
# $COLUMNS stores the current shell width.
# Remove an extra 4 because we add 2 spaces and 2 parentheses.
maxdesclength=$(( COLUMNS - longest - 4 ))
# Make sure we can fit a description of at least 8 characters
# if we are to align the descriptions.
if [[ $maxdesclength -gt 8 ]]; then
# Add the proper number of spaces to align the descriptions
for ((i = ${#comp} ; i < longest ; i++)); do
comp+=" "
done
else
# Don't pad the descriptions so we can fit more text after the completion
maxdesclength=$(( COLUMNS - ${#comp} - 4 ))
fi
# If there is enough space for any description text,
# truncate the descriptions that are too long for the shell width
if [ $maxdesclength -gt 0 ]; then
if [ ${#desc} -gt $maxdesclength ]; then
desc=${desc:0:$(( maxdesclength - 1 ))}
desc+="…"
# Make sure we can fit a description of at least 8 characters
# if we are to align the descriptions.
if [[ $maxdesclength -gt 8 ]]; then
# Add the proper number of spaces to align the descriptions
for ((i = ${#comp} ; i < longest ; i++)); do
comp+=" "
done
else
# Don't pad the descriptions so we can fit more text after the completion
maxdesclength=$(( COLUMNS - ${#comp} - 4 ))
fi
comp+=" ($desc)"
fi
fi
# Must use printf to escape all special characters
printf "%%q" "${comp}"
# If there is enough space for any description text,
# truncate the descriptions that are too long for the shell width
if [ $maxdesclength -gt 0 ]; then
if [ ${#desc} -gt $maxdesclength ]; then
desc=${desc:0:$(( maxdesclength - 1 ))}
desc+="…"
fi
comp+=" ($desc)"
fi
COMPREPLY[ci]=$comp
__%[1]s_debug "Final comp: $comp"
fi
done
}
__start_%[1]s()
@ -281,7 +347,8 @@ fi
# ex: ts=4 sw=4 et filetype=sh
`, name, compCmd,
ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs))
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs,
activeHelpMarker))
}
// GenBashCompletionFileV2 generates Bash completion version 2.

View File

@ -18,6 +18,7 @@ package cobra
import (
"bytes"
"context"
"errors"
"fmt"
"io"
"os"
@ -166,7 +167,7 @@ type Command struct {
// errWriter is a writer defined by the user that replaces stderr
errWriter io.Writer
//FParseErrWhitelist flag parse errors to be ignored
// FParseErrWhitelist flag parse errors to be ignored
FParseErrWhitelist FParseErrWhitelist
// CompletionOptions is a set of options to control the handling of shell completion
@ -224,12 +225,23 @@ type Command struct {
SuggestionsMinimumDistance int
}
// Context returns underlying command context. If command wasn't
// executed with ExecuteContext Context returns Background context.
// Context returns underlying command context. If command was executed
// with ExecuteContext or the context was set with SetContext, the
// previously set context will be returned. Otherwise, nil is returned.
//
// Notice that a call to Execute and ExecuteC will replace a nil context of
// a command with a context.Background, so a background context will be
// returned by Context after one of these functions has been called.
func (c *Command) Context() context.Context {
return c.ctx
}
// SetContext sets context for the command. It is set to context.Background by default and will be overwritten by
// Command.ExecuteContext or Command.ExecuteContextC
func (c *Command) SetContext(ctx context.Context) {
c.ctx = ctx
}
// SetArgs sets arguments for the command. It is set to os.Args[1:] by default, if desired, can be overridden
// particularly useful when testing.
func (c *Command) SetArgs(a []string) {
@ -852,6 +864,10 @@ func (c *Command) execute(a []string) (err error) {
if err := c.validateRequiredFlags(); err != nil {
return err
}
if err := c.validateFlagGroups(); err != nil {
return err
}
if c.RunE != nil {
if err := c.RunE(c, argWoFlags); err != nil {
return err
@ -975,7 +991,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
if err != nil {
// Always show help if requested, even if SilenceErrors is in
// effect
if err == flag.ErrHelp {
if errors.Is(err, flag.ErrHelp) {
cmd.HelpFunc()(cmd, args)
return cmd, nil
}
@ -997,7 +1013,7 @@ func (c *Command) ExecuteC() (cmd *Command, err error) {
func (c *Command) ValidateArgs(args []string) error {
if c.Args == nil {
return nil
return ArbitraryArgs(c, args)
}
return c.Args(c, args)
}

View File

@ -1,3 +1,4 @@
//go:build !windows
// +build !windows
package cobra

View File

@ -1,3 +1,4 @@
//go:build windows
// +build windows
package cobra

View File

@ -93,6 +93,8 @@ type CompletionOptions struct {
// DisableDescriptions turns off all completion descriptions for shells
// that support them
DisableDescriptions bool
// HiddenDefaultCmd makes the default 'completion' command hidden
HiddenDefaultCmd bool
}
// NoFileCompletions can be used to disable file completion for commands that should
@ -101,6 +103,14 @@ func NoFileCompletions(cmd *Command, args []string, toComplete string) ([]string
return nil, ShellCompDirectiveNoFileComp
}
// FixedCompletions can be used to create a completion function which always
// returns the same results.
func FixedCompletions(choices []string, directive ShellCompDirective) func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) {
return func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) {
return choices, directive
}
}
// RegisterFlagCompletionFunc should be called to register a function to provide completion for a flag.
func (c *Command) RegisterFlagCompletionFunc(flagName string, f func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective)) error {
flag := c.Flag(flagName)
@ -168,6 +178,12 @@ func (c *Command) initCompleteCmd(args []string) {
noDescriptions := (cmd.CalledAs() == ShellCompNoDescRequestCmd)
for _, comp := range completions {
if GetActiveHelpConfig(finalCmd) == activeHelpGlobalDisable {
// Remove all activeHelp entries in this case
if strings.HasPrefix(comp, activeHelpMarker) {
continue
}
}
if noDescriptions {
// Remove any description that may be included following a tab character.
comp = strings.Split(comp, "\t")[0]
@ -226,7 +242,17 @@ func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDi
if c.Root().TraverseChildren {
finalCmd, finalArgs, err = c.Root().Traverse(trimmedArgs)
} else {
finalCmd, finalArgs, err = c.Root().Find(trimmedArgs)
// For Root commands that don't specify any value for their Args fields, when we call
// Find(), if those Root commands don't have any sub-commands, they will accept arguments.
// However, because we have added the __complete sub-command in the current code path, the
// call to Find() -> legacyArgs() will return an error if there are any arguments.
// To avoid this, we first remove the __complete command to get back to having no sub-commands.
rootCmd := c.Root()
if len(rootCmd.Commands()) == 1 {
rootCmd.RemoveCommand(c)
}
finalCmd, finalArgs, err = rootCmd.Find(trimmedArgs)
}
if err != nil {
// Unable to find the real command. E.g., <program> someInvalidCmd <TAB>
@ -266,6 +292,12 @@ func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDi
}
}
// We only remove the flags from the arguments if DisableFlagParsing is not set.
// This is important for commands which have requested to do their own flag completion.
if !finalCmd.DisableFlagParsing {
finalArgs = finalCmd.Flags().Args()
}
if flag != nil && flagCompletion {
// Check if we are completing a flag value subject to annotations
if validExts, present := flag.Annotations[BashCompFilenameExt]; present {
@ -290,12 +322,19 @@ func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDi
}
}
var completions []string
var directive ShellCompDirective
// Enforce flag groups before doing flag completions
finalCmd.enforceFlagGroupsForCompletion()
// Note that we want to perform flagname completion even if finalCmd.DisableFlagParsing==true;
// doing this allows for completion of persistent flag names even for commands that disable flag parsing.
//
// When doing completion of a flag name, as soon as an argument starts with
// a '-' we know it is a flag. We cannot use isFlagArg() here as it requires
// the flag name to be complete
if flag == nil && len(toComplete) > 0 && toComplete[0] == '-' && !strings.Contains(toComplete, "=") && flagCompletion {
var completions []string
// First check for required flags
completions = completeRequireFlags(finalCmd, toComplete)
@ -322,86 +361,86 @@ func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDi
})
}
directive := ShellCompDirectiveNoFileComp
directive = ShellCompDirectiveNoFileComp
if len(completions) == 1 && strings.HasSuffix(completions[0], "=") {
// If there is a single completion, the shell usually adds a space
// after the completion. We don't want that if the flag ends with an =
directive = ShellCompDirectiveNoSpace
}
return finalCmd, completions, directive, nil
}
// We only remove the flags from the arguments if DisableFlagParsing is not set.
// This is important for commands which have requested to do their own flag completion.
if !finalCmd.DisableFlagParsing {
finalArgs = finalCmd.Flags().Args()
}
var completions []string
directive := ShellCompDirectiveDefault
if flag == nil {
foundLocalNonPersistentFlag := false
// If TraverseChildren is true on the root command we don't check for
// local flags because we can use a local flag on a parent command
if !finalCmd.Root().TraverseChildren {
// Check if there are any local, non-persistent flags on the command-line
localNonPersistentFlags := finalCmd.LocalNonPersistentFlags()
finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
if localNonPersistentFlags.Lookup(flag.Name) != nil && flag.Changed {
foundLocalNonPersistentFlag = true
}
})
if !finalCmd.DisableFlagParsing {
// If DisableFlagParsing==false, we have completed the flags as known by Cobra;
// we can return what we found.
// If DisableFlagParsing==true, Cobra may not be aware of all flags, so we
// let the logic continue to see if ValidArgsFunction needs to be called.
return finalCmd, completions, directive, nil
}
// Complete subcommand names, including the help command
if len(finalArgs) == 0 && !foundLocalNonPersistentFlag {
// We only complete sub-commands if:
// - there are no arguments on the command-line and
// - there are no local, non-persistent flags on the command-line or TraverseChildren is true
for _, subCmd := range finalCmd.Commands() {
if subCmd.IsAvailableCommand() || subCmd == finalCmd.helpCommand {
if strings.HasPrefix(subCmd.Name(), toComplete) {
completions = append(completions, fmt.Sprintf("%s\t%s", subCmd.Name(), subCmd.Short))
} else {
directive = ShellCompDirectiveDefault
if flag == nil {
foundLocalNonPersistentFlag := false
// If TraverseChildren is true on the root command we don't check for
// local flags because we can use a local flag on a parent command
if !finalCmd.Root().TraverseChildren {
// Check if there are any local, non-persistent flags on the command-line
localNonPersistentFlags := finalCmd.LocalNonPersistentFlags()
finalCmd.NonInheritedFlags().VisitAll(func(flag *pflag.Flag) {
if localNonPersistentFlags.Lookup(flag.Name) != nil && flag.Changed {
foundLocalNonPersistentFlag = true
}
})
}
// Complete subcommand names, including the help command
if len(finalArgs) == 0 && !foundLocalNonPersistentFlag {
// We only complete sub-commands if:
// - there are no arguments on the command-line and
// - there are no local, non-persistent flags on the command-line or TraverseChildren is true
for _, subCmd := range finalCmd.Commands() {
if subCmd.IsAvailableCommand() || subCmd == finalCmd.helpCommand {
if strings.HasPrefix(subCmd.Name(), toComplete) {
completions = append(completions, fmt.Sprintf("%s\t%s", subCmd.Name(), subCmd.Short))
}
directive = ShellCompDirectiveNoFileComp
}
directive = ShellCompDirectiveNoFileComp
}
}
}
// Complete required flags even without the '-' prefix
completions = append(completions, completeRequireFlags(finalCmd, toComplete)...)
// Complete required flags even without the '-' prefix
completions = append(completions, completeRequireFlags(finalCmd, toComplete)...)
// Always complete ValidArgs, even if we are completing a subcommand name.
// This is for commands that have both subcommands and ValidArgs.
if len(finalCmd.ValidArgs) > 0 {
if len(finalArgs) == 0 {
// ValidArgs are only for the first argument
for _, validArg := range finalCmd.ValidArgs {
if strings.HasPrefix(validArg, toComplete) {
completions = append(completions, validArg)
// Always complete ValidArgs, even if we are completing a subcommand name.
// This is for commands that have both subcommands and ValidArgs.
if len(finalCmd.ValidArgs) > 0 {
if len(finalArgs) == 0 {
// ValidArgs are only for the first argument
for _, validArg := range finalCmd.ValidArgs {
if strings.HasPrefix(validArg, toComplete) {
completions = append(completions, validArg)
}
}
}
directive = ShellCompDirectiveNoFileComp
directive = ShellCompDirectiveNoFileComp
// If no completions were found within commands or ValidArgs,
// see if there are any ArgAliases that should be completed.
if len(completions) == 0 {
for _, argAlias := range finalCmd.ArgAliases {
if strings.HasPrefix(argAlias, toComplete) {
completions = append(completions, argAlias)
// If no completions were found within commands or ValidArgs,
// see if there are any ArgAliases that should be completed.
if len(completions) == 0 {
for _, argAlias := range finalCmd.ArgAliases {
if strings.HasPrefix(argAlias, toComplete) {
completions = append(completions, argAlias)
}
}
}
}
// If there are ValidArgs specified (even if they don't match), we stop completion.
// Only one of ValidArgs or ValidArgsFunction can be used for a single command.
return finalCmd, completions, directive, nil
}
// If there are ValidArgs specified (even if they don't match), we stop completion.
// Only one of ValidArgs or ValidArgsFunction can be used for a single command.
return finalCmd, completions, directive, nil
// Let the logic continue so as to add any ValidArgsFunction completions,
// even if we already found sub-commands.
// This is for commands that have subcommands but also specify a ValidArgsFunction.
}
// Let the logic continue so as to add any ValidArgsFunction completions,
// even if we already found sub-commands.
// This is for commands that have subcommands but also specify a ValidArgsFunction.
}
// Find the completion function for the flag or command
@ -589,39 +628,43 @@ func (c *Command) initDefaultCompletionCmd() {
completionCmd := &Command{
Use: compCmdName,
Short: "generate the autocompletion script for the specified shell",
Long: fmt.Sprintf(`
Generate the autocompletion script for %[1]s for the specified shell.
Short: "Generate the autocompletion script for the specified shell",
Long: fmt.Sprintf(`Generate the autocompletion script for %[1]s for the specified shell.
See each sub-command's help for details on how to use the generated script.
`, c.Root().Name()),
Args: NoArgs,
ValidArgsFunction: NoFileCompletions,
Hidden: c.CompletionOptions.HiddenDefaultCmd,
}
c.AddCommand(completionCmd)
out := c.OutOrStdout()
noDesc := c.CompletionOptions.DisableDescriptions
shortDesc := "generate the autocompletion script for %s"
shortDesc := "Generate the autocompletion script for %s"
bash := &Command{
Use: "bash",
Short: fmt.Sprintf(shortDesc, "bash"),
Long: fmt.Sprintf(`
Generate the autocompletion script for the bash shell.
Long: fmt.Sprintf(`Generate the autocompletion script for the bash shell.
This script depends on the 'bash-completion' package.
If it is not installed already, you can install it via your OS's package manager.
To load completions in your current shell session:
$ source <(%[1]s completion bash)
source <(%[1]s completion bash)
To load completions for every new session, execute once:
Linux:
$ %[1]s completion bash > /etc/bash_completion.d/%[1]s
MacOS:
$ %[1]s completion bash > /usr/local/etc/bash_completion.d/%[1]s
#### Linux:
%[1]s completion bash > /etc/bash_completion.d/%[1]s
#### macOS:
%[1]s completion bash > $(brew --prefix)/etc/bash_completion.d/%[1]s
You will need to start a new shell for this setup to take effect.
`, c.Root().Name()),
`, c.Root().Name()),
Args: NoArgs,
DisableFlagsInUseLine: true,
ValidArgsFunction: NoFileCompletions,
@ -636,19 +679,26 @@ You will need to start a new shell for this setup to take effect.
zsh := &Command{
Use: "zsh",
Short: fmt.Sprintf(shortDesc, "zsh"),
Long: fmt.Sprintf(`
Generate the autocompletion script for the zsh shell.
Long: fmt.Sprintf(`Generate the autocompletion script for the zsh shell.
If shell completion is not already enabled in your environment you will need
to enable it. You can execute the following once:
$ echo "autoload -U compinit; compinit" >> ~/.zshrc
echo "autoload -U compinit; compinit" >> ~/.zshrc
To load completions in your current shell session:
source <(%[1]s completion zsh); compdef _%[1]s %[1]s
To load completions for every new session, execute once:
# Linux:
$ %[1]s completion zsh > "${fpath[1]}/_%[1]s"
# macOS:
$ %[1]s completion zsh > /usr/local/share/zsh/site-functions/_%[1]s
#### Linux:
%[1]s completion zsh > "${fpath[1]}/_%[1]s"
#### macOS:
%[1]s completion zsh > $(brew --prefix)/share/zsh/site-functions/_%[1]s
You will need to start a new shell for this setup to take effect.
`, c.Root().Name()),
@ -668,14 +718,15 @@ You will need to start a new shell for this setup to take effect.
fish := &Command{
Use: "fish",
Short: fmt.Sprintf(shortDesc, "fish"),
Long: fmt.Sprintf(`
Generate the autocompletion script for the fish shell.
Long: fmt.Sprintf(`Generate the autocompletion script for the fish shell.
To load completions in your current shell session:
$ %[1]s completion fish | source
%[1]s completion fish | source
To load completions for every new session, execute once:
$ %[1]s completion fish > ~/.config/fish/completions/%[1]s.fish
%[1]s completion fish > ~/.config/fish/completions/%[1]s.fish
You will need to start a new shell for this setup to take effect.
`, c.Root().Name()),
@ -692,11 +743,11 @@ You will need to start a new shell for this setup to take effect.
powershell := &Command{
Use: "powershell",
Short: fmt.Sprintf(shortDesc, "powershell"),
Long: fmt.Sprintf(`
Generate the autocompletion script for powershell.
Long: fmt.Sprintf(`Generate the autocompletion script for powershell.
To load completions in your current shell session:
PS C:\> %[1]s completion powershell | Out-String | Invoke-Expression
%[1]s completion powershell | Out-String | Invoke-Expression
To load completions for every new session, add the output of the above command
to your powershell profile.

View File

@ -11,8 +11,8 @@ import (
func genFishComp(buf io.StringWriter, name string, includeDesc bool) {
// Variables should not contain a '-' or ':' character
nameForVar := name
nameForVar = strings.Replace(nameForVar, "-", "_", -1)
nameForVar = strings.Replace(nameForVar, ":", "_", -1)
nameForVar = strings.ReplaceAll(nameForVar, "-", "_")
nameForVar = strings.ReplaceAll(nameForVar, ":", "_")
compCmd := ShellCompRequestCmd
if !includeDesc {
@ -38,7 +38,8 @@ function __%[1]s_perform_completion
__%[1]s_debug "args: $args"
__%[1]s_debug "last arg: $lastArg"
set -l requestComp "$args[1] %[3]s $args[2..-1] $lastArg"
# Disable ActiveHelp which is not supported for fish shell
set -l requestComp "%[9]s=0 $args[1] %[3]s $args[2..-1] $lastArg"
__%[1]s_debug "Calling $requestComp"
set -l results (eval $requestComp 2> /dev/null)
@ -196,7 +197,7 @@ complete -c %[2]s -n '__%[1]s_prepare_completions' -f -a '$__%[1]s_comp_results'
`, nameForVar, name, compCmd,
ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs))
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, activeHelpEnvVar(name)))
}
// GenFishCompletion generates fish completion file and writes to the passed writer.

223
vendor/github.com/spf13/cobra/flag_groups.go generated vendored Normal file
View File

@ -0,0 +1,223 @@
// Copyright © 2022 Steve Francia <spf@spf13.com>.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package cobra
import (
"fmt"
"sort"
"strings"
flag "github.com/spf13/pflag"
)
const (
requiredAsGroup = "cobra_annotation_required_if_others_set"
mutuallyExclusive = "cobra_annotation_mutually_exclusive"
)
// MarkFlagsRequiredTogether marks the given flags with annotations so that Cobra errors
// if the command is invoked with a subset (but not all) of the given flags.
func (c *Command) MarkFlagsRequiredTogether(flagNames ...string) {
c.mergePersistentFlags()
for _, v := range flagNames {
f := c.Flags().Lookup(v)
if f == nil {
panic(fmt.Sprintf("Failed to find flag %q and mark it as being required in a flag group", v))
}
if err := c.Flags().SetAnnotation(v, requiredAsGroup, append(f.Annotations[requiredAsGroup], strings.Join(flagNames, " "))); err != nil {
// Only errs if the flag isn't found.
panic(err)
}
}
}
// MarkFlagsMutuallyExclusive marks the given flags with annotations so that Cobra errors
// if the command is invoked with more than one flag from the given set of flags.
func (c *Command) MarkFlagsMutuallyExclusive(flagNames ...string) {
c.mergePersistentFlags()
for _, v := range flagNames {
f := c.Flags().Lookup(v)
if f == nil {
panic(fmt.Sprintf("Failed to find flag %q and mark it as being in a mutually exclusive flag group", v))
}
// Each time this is called is a single new entry; this allows it to be a member of multiple groups if needed.
if err := c.Flags().SetAnnotation(v, mutuallyExclusive, append(f.Annotations[mutuallyExclusive], strings.Join(flagNames, " "))); err != nil {
panic(err)
}
}
}
// validateFlagGroups validates the mutuallyExclusive/requiredAsGroup logic and returns the
// first error encountered.
func (c *Command) validateFlagGroups() error {
if c.DisableFlagParsing {
return nil
}
flags := c.Flags()
// groupStatus format is the list of flags as a unique ID,
// then a map of each flag name and whether it is set or not.
groupStatus := map[string]map[string]bool{}
mutuallyExclusiveGroupStatus := map[string]map[string]bool{}
flags.VisitAll(func(pflag *flag.Flag) {
processFlagForGroupAnnotation(flags, pflag, requiredAsGroup, groupStatus)
processFlagForGroupAnnotation(flags, pflag, mutuallyExclusive, mutuallyExclusiveGroupStatus)
})
if err := validateRequiredFlagGroups(groupStatus); err != nil {
return err
}
if err := validateExclusiveFlagGroups(mutuallyExclusiveGroupStatus); err != nil {
return err
}
return nil
}
func hasAllFlags(fs *flag.FlagSet, flagnames ...string) bool {
for _, fname := range flagnames {
f := fs.Lookup(fname)
if f == nil {
return false
}
}
return true
}
func processFlagForGroupAnnotation(flags *flag.FlagSet, pflag *flag.Flag, annotation string, groupStatus map[string]map[string]bool) {
groupInfo, found := pflag.Annotations[annotation]
if found {
for _, group := range groupInfo {
if groupStatus[group] == nil {
flagnames := strings.Split(group, " ")
// Only consider this flag group at all if all the flags are defined.
if !hasAllFlags(flags, flagnames...) {
continue
}
groupStatus[group] = map[string]bool{}
for _, name := range flagnames {
groupStatus[group][name] = false
}
}
groupStatus[group][pflag.Name] = pflag.Changed
}
}
}
func validateRequiredFlagGroups(data map[string]map[string]bool) error {
keys := sortedKeys(data)
for _, flagList := range keys {
flagnameAndStatus := data[flagList]
unset := []string{}
for flagname, isSet := range flagnameAndStatus {
if !isSet {
unset = append(unset, flagname)
}
}
if len(unset) == len(flagnameAndStatus) || len(unset) == 0 {
continue
}
// Sort values, so they can be tested/scripted against consistently.
sort.Strings(unset)
return fmt.Errorf("if any flags in the group [%v] are set they must all be set; missing %v", flagList, unset)
}
return nil
}
func validateExclusiveFlagGroups(data map[string]map[string]bool) error {
keys := sortedKeys(data)
for _, flagList := range keys {
flagnameAndStatus := data[flagList]
var set []string
for flagname, isSet := range flagnameAndStatus {
if isSet {
set = append(set, flagname)
}
}
if len(set) == 0 || len(set) == 1 {
continue
}
// Sort values, so they can be tested/scripted against consistently.
sort.Strings(set)
return fmt.Errorf("if any flags in the group [%v] are set none of the others can be; %v were all set", flagList, set)
}
return nil
}
func sortedKeys(m map[string]map[string]bool) []string {
keys := make([]string, len(m))
i := 0
for k := range m {
keys[i] = k
i++
}
sort.Strings(keys)
return keys
}
// enforceFlagGroupsForCompletion will do the following:
// - when a flag in a group is present, other flags in the group will be marked required
// - when a flag in a mutually exclusive group is present, other flags in the group will be marked as hidden
// This allows the standard completion logic to behave appropriately for flag groups
func (c *Command) enforceFlagGroupsForCompletion() {
if c.DisableFlagParsing {
return
}
flags := c.Flags()
groupStatus := map[string]map[string]bool{}
mutuallyExclusiveGroupStatus := map[string]map[string]bool{}
c.Flags().VisitAll(func(pflag *flag.Flag) {
processFlagForGroupAnnotation(flags, pflag, requiredAsGroup, groupStatus)
processFlagForGroupAnnotation(flags, pflag, mutuallyExclusive, mutuallyExclusiveGroupStatus)
})
// If a flag that is part of a group is present, we make all the other flags
// of that group required so that the shell completion suggests them automatically
for flagList, flagnameAndStatus := range groupStatus {
for _, isSet := range flagnameAndStatus {
if isSet {
// One of the flags of the group is set, mark the other ones as required
for _, fName := range strings.Split(flagList, " ") {
_ = c.MarkFlagRequired(fName)
}
}
}
}
// If a flag that is mutually exclusive to others is present, we hide the other
// flags of that group so the shell completion does not suggest them
for flagList, flagnameAndStatus := range mutuallyExclusiveGroupStatus {
for flagName, isSet := range flagnameAndStatus {
if isSet {
// One of the flags of the mutually exclusive group is set, mark the other ones as hidden
// Don't mark the flag that is already set as hidden because it may be an
// array or slice flag and therefore must continue being suggested
for _, fName := range strings.Split(flagList, " ") {
if fName != flagName {
flag := c.Flags().Lookup(fName)
flag.Hidden = true
}
}
}
}
}
}

View File

@ -50,7 +50,7 @@ Register-ArgumentCompleter -CommandName '%[1]s' -ScriptBlock {
if ($Command.Length -gt $CursorPosition) {
$Command=$Command.Substring(0,$CursorPosition)
}
__%[1]s_debug "Truncated command: $Command"
__%[1]s_debug "Truncated command: $Command"
$ShellCompDirectiveError=%[3]d
$ShellCompDirectiveNoSpace=%[4]d
@ -58,9 +58,10 @@ Register-ArgumentCompleter -CommandName '%[1]s' -ScriptBlock {
$ShellCompDirectiveFilterFileExt=%[6]d
$ShellCompDirectiveFilterDirs=%[7]d
# Prepare the command to request completions for the program.
# Prepare the command to request completions for the program.
# Split the command at the first space to separate the program and arguments.
$Program,$Arguments = $Command.Split(" ",2)
$RequestComp="$Program %[2]s $Arguments"
__%[1]s_debug "RequestComp: $RequestComp"
@ -90,11 +91,13 @@ Register-ArgumentCompleter -CommandName '%[1]s' -ScriptBlock {
}
__%[1]s_debug "Calling $RequestComp"
# First disable ActiveHelp which is not supported for Powershell
$env:%[8]s=0
#call the command store the output in $out and redirect stderr and stdout to null
# $Out is an array contains each line per element
Invoke-Expression -OutVariable out "$RequestComp" 2>&1 | Out-Null
# get directive from last line
[int]$Directive = $Out[-1].TrimStart(':')
if ($Directive -eq "") {
@ -233,7 +236,7 @@ Register-ArgumentCompleter -CommandName '%[1]s' -ScriptBlock {
Default {
# Like MenuComplete but we don't want to add a space here because
# the user need to press space anyway to get the completion.
# Description will not be shown because thats not possible with TabCompleteNext
# Description will not be shown because that's not possible with TabCompleteNext
[System.Management.Automation.CompletionResult]::new($($comp.Name | __%[1]s_escapeStringWithSpecialChars), "$($comp.Name)", 'ParameterValue', "$($comp.Description)")
}
}
@ -242,7 +245,7 @@ Register-ArgumentCompleter -CommandName '%[1]s' -ScriptBlock {
}
`, name, compCmd,
ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs))
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs, activeHelpEnvVar(name)))
}
func (c *Command) genPowerShellCompletion(w io.Writer, includeDesc bool) error {

View File

@ -1,9 +1,10 @@
## Projects using Cobra
- [Arduino CLI](https://github.com/arduino/arduino-cli)
- [Bleve](http://www.blevesearch.com/)
- [CockroachDB](http://www.cockroachlabs.com/)
- [Bleve](https://blevesearch.com/)
- [CockroachDB](https://www.cockroachlabs.com/)
- [Cosmos SDK](https://github.com/cosmos/cosmos-sdk)
- [Datree](https://github.com/datreeio/datree)
- [Delve](https://github.com/derekparker/delve)
- [Docker (distribution)](https://github.com/docker/distribution)
- [Etcd](https://etcd.io/)
@ -13,26 +14,41 @@
- [Github CLI](https://github.com/cli/cli)
- [GitHub Labeler](https://github.com/erdaltsksn/gh-label)
- [Golangci-lint](https://golangci-lint.run)
- [GopherJS](http://www.gopherjs.org/)
- [GopherJS](https://github.com/gopherjs/gopherjs)
- [GoReleaser](https://goreleaser.com)
- [Helm](https://helm.sh)
- [Hugo](https://gohugo.io)
- [Infracost](https://github.com/infracost/infracost)
- [Istio](https://istio.io)
- [Kool](https://github.com/kool-dev/kool)
- [Kubernetes](http://kubernetes.io/)
- [Kubernetes](https://kubernetes.io/)
- [Kubescape](https://github.com/armosec/kubescape)
- [Linkerd](https://linkerd.io/)
- [Mattermost-server](https://github.com/mattermost/mattermost-server)
- [Mercure](https://mercure.rocks/)
- [Meroxa CLI](https://github.com/meroxa/cli)
- [Metal Stack CLI](https://github.com/metal-stack/metalctl)
- [Moby (former Docker)](https://github.com/moby/moby)
- [Moldy](https://github.com/Moldy-Community/moldy)
- [Multi-gitter](https://github.com/lindell/multi-gitter)
- [Nanobox](https://github.com/nanobox-io/nanobox)/[Nanopack](https://github.com/nanopack)
- [nFPM](https://nfpm.goreleaser.com)
- [OpenShift](https://www.openshift.com/)
- [Ory Hydra](https://github.com/ory/hydra)
- [Ory Kratos](https://github.com/ory/kratos)
- [Pixie](https://github.com/pixie-io/pixie)
- [Polygon Edge](https://github.com/0xPolygon/polygon-edge)
- [Pouch](https://github.com/alibaba/pouch)
- [ProjectAtomic (enterprise)](http://www.projectatomic.io/)
- [ProjectAtomic (enterprise)](https://www.projectatomic.io/)
- [Prototool](https://github.com/uber/prototool)
- [Pulumi](https://www.pulumi.com)
- [QRcp](https://github.com/claudiodangelis/qrcp)
- [Random](https://github.com/erdaltsksn/random)
- [Rclone](https://rclone.org/)
- [Scaleway CLI](https://github.com/scaleway/scaleway-cli)
- [Skaffold](https://skaffold.dev/)
- [Tendermint](https://github.com/tendermint/tendermint)
- [Twitch CLI](https://github.com/twitchdev/twitch-cli)
- [UpCloud CLI (`upctl`)](https://github.com/UpCloudLtd/upcloud-cli)
- VMware's [Tanzu Community Edition](https://github.com/vmware-tanzu/community-edition) & [Tanzu Framework](https://github.com/vmware-tanzu/tanzu-framework)
- [Werf](https://werf.io/)

View File

@ -16,10 +16,12 @@ If you do not wish to use the default `completion` command, you can choose to
provide your own, which will take precedence over the default one. (This also provides
backwards-compatibility with programs that already have their own `completion` command.)
If you are using the generator, you can create a completion command by running
If you are using the `cobra-cli` generator,
which can be found at [spf13/cobra-cli](https://github.com/spf13/cobra-cli),
you can create a completion command by running
```bash
cobra add completion
cobra-cli add completion
```
and then modifying the generated `cmd/completion.go` file to look something like this
(writing the shell script to stdout allows the most flexible use):
@ -28,17 +30,17 @@ and then modifying the generated `cmd/completion.go` file to look something like
var completionCmd = &cobra.Command{
Use: "completion [bash|zsh|fish|powershell]",
Short: "Generate completion script",
Long: `To load completions:
Long: fmt.Sprintf(`To load completions:
Bash:
$ source <(yourprogram completion bash)
$ source <(%[1]s completion bash)
# To load completions for each session, execute once:
# Linux:
$ yourprogram completion bash > /etc/bash_completion.d/yourprogram
$ %[1]s completion bash > /etc/bash_completion.d/%[1]s
# macOS:
$ yourprogram completion bash > /usr/local/etc/bash_completion.d/yourprogram
$ %[1]s completion bash > $(brew --prefix)/etc/bash_completion.d/%[1]s
Zsh:
@ -48,25 +50,25 @@ Zsh:
$ echo "autoload -U compinit; compinit" >> ~/.zshrc
# To load completions for each session, execute once:
$ yourprogram completion zsh > "${fpath[1]}/_yourprogram"
$ %[1]s completion zsh > "${fpath[1]}/_%[1]s"
# You will need to start a new shell for this setup to take effect.
fish:
$ yourprogram completion fish | source
$ %[1]s completion fish | source
# To load completions for each session, execute once:
$ yourprogram completion fish > ~/.config/fish/completions/yourprogram.fish
$ %[1]s completion fish > ~/.config/fish/completions/%[1]s.fish
PowerShell:
PS> yourprogram completion powershell | Out-String | Invoke-Expression
PS> %[1]s completion powershell | Out-String | Invoke-Expression
# To load completions for every new session, run:
PS> yourprogram completion powershell > yourprogram.ps1
PS> %[1]s completion powershell > %[1]s.ps1
# and source this file from your PowerShell profile.
`,
`,cmd.Root().Name()),
DisableFlagsInUseLine: true,
ValidArgs: []string{"bash", "zsh", "fish", "powershell"},
Args: cobra.ExactValidArgs(1),
@ -120,7 +122,7 @@ For example, if you want `kubectl get [tab][tab]` to show a list of valid "nouns
Some simplified code from `kubectl get` looks like:
```go
validArgs []string = { "pod", "node", "service", "replicationcontroller" }
validArgs = []string{ "pod", "node", "service", "replicationcontroller" }
cmd := &cobra.Command{
Use: "get [(-o|--output=)json|yaml|template|...] (RESOURCE [NAME] | RESOURCE/NAME ...)",
@ -146,7 +148,7 @@ node pod replicationcontroller service
If your nouns have aliases, you can define them alongside `ValidArgs` using `ArgAliases`:
```go
argAliases []string = { "pods", "nodes", "services", "svc", "replicationcontrollers", "rc" }
argAliases = []string { "pods", "nodes", "services", "svc", "replicationcontrollers", "rc" }
cmd := &cobra.Command{
...

View File

@ -29,10 +29,10 @@ func main() {
## Using the Cobra Generator
Cobra provides its own program that will create your application and add any
Cobra-CLI is its own program that will create your application and add any
commands you want. It's the easiest way to incorporate Cobra into your application.
[Here](https://github.com/spf13/cobra/blob/master/cobra/README.md) you can find more information about it.
For complete details on using the Cobra generator, please refer to [The Cobra-CLI Generator README](https://github.com/spf13/cobra-cli/blob/main/README.md)
## Using the Cobra Library
@ -51,7 +51,7 @@ var rootCmd = &cobra.Command{
Short: "Hugo is a very fast static site generator",
Long: `A Fast and Flexible Static Site Generator built with
love by spf13 and friends in Go.
Complete documentation is available at http://hugo.spf13.com`,
Complete documentation is available at https://gohugo.io/documentation/`,
Run: func(cmd *cobra.Command, args []string) {
// Do Stuff Here
},
@ -86,7 +86,7 @@ var (
userLicense string
rootCmd = &cobra.Command{
Use: "cobra",
Use: "cobra-cli",
Short: "A generator for Cobra based Applications",
Long: `Cobra is a CLI library for Go that empowers applications.
This application is a tool to generate the needed files
@ -281,7 +281,7 @@ func init() {
In this example, the persistent flag `author` is bound with `viper`.
**Note**: the variable `author` will not be set to the value from config,
when the `--author` flag is not provided by user.
when the `--author` flag is provided by user.
More in [viper documentation](https://github.com/spf13/viper#working-with-flags).
@ -300,10 +300,34 @@ rootCmd.PersistentFlags().StringVarP(&Region, "region", "r", "", "AWS region (re
rootCmd.MarkPersistentFlagRequired("region")
```
### Flag Groups
If you have different flags that must be provided together (e.g. if they provide the `--username` flag they MUST provide the `--password` flag as well) then
Cobra can enforce that requirement:
```go
rootCmd.Flags().StringVarP(&u, "username", "u", "", "Username (required if password is set)")
rootCmd.Flags().StringVarP(&pw, "password", "p", "", "Password (required if username is set)")
rootCmd.MarkFlagsRequiredTogether("username", "password")
```
You can also prevent different flags from being provided together if they represent mutually
exclusive options such as specifying an output format as either `--json` or `--yaml` but never both:
```go
rootCmd.Flags().BoolVar(&u, "json", false, "Output in JSON")
rootCmd.Flags().BoolVar(&pw, "yaml", false, "Output in YAML")
rootCmd.MarkFlagsMutuallyExclusive("json", "yaml")
```
In both of these cases:
- both local and persistent flags can be used
- **NOTE:** the group is only enforced on commands where every flag is defined
- a flag may appear in multiple groups
- a group may contain any number of flags
## Positional and Custom Arguments
Validation of positional arguments can be specified using the `Args` field
of `Command`.
Validation of positional arguments can be specified using the `Args` field of `Command`.
If `Args` is undefined or `nil`, it defaults to `ArbitraryArgs`.
The following validators are built in:
@ -315,6 +339,7 @@ The following validators are built in:
- `ExactArgs(int)` - the command will report an error if there are not exactly N positional args.
- `ExactValidArgs(int)` - the command will report an error if there are not exactly N positional args OR if there are any positional args that are not in the `ValidArgs` field of `Command`
- `RangeArgs(min, max)` - the command will report an error if the number of args is not between the minimum and maximum number of expected args.
- `MatchAll(pargs ...PositionalArgs)` - enables combining existing checks with arbitrary other checks (e.g. you want to check the ExactArgs length along with other qualities).
An example of setting the custom validator:
@ -404,7 +429,7 @@ a count and a string.`,
}
```
For a more complete example of a larger application, please checkout [Hugo](http://gohugo.io/).
For a more complete example of a larger application, please checkout [Hugo](https://gohugo.io/).
## Help Command
@ -602,7 +627,7 @@ Did you mean this?
Run 'hugo --help' for usage.
```
Suggestions are automatic based on every subcommand registered and use an implementation of [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion.
Suggestions are automatic based on every subcommand registered and use an implementation of [Levenshtein distance](https://en.wikipedia.org/wiki/Levenshtein_distance). Every registered command that matches a minimum distance of 2 (ignoring case) will be displayed as a suggestion.
If you need to disable suggestions or tweak the string distance in your command, use:
@ -635,3 +660,7 @@ Cobra can generate documentation based on subcommands, flags, etc. Read more abo
## Generating shell completions
Cobra can generate a shell-completion file for the following shells: bash, zsh, fish, PowerShell. If you add more information to your commands, these completions can be amazingly powerful and flexible. Read more about it in [Shell Completions](shell_completions.md).
## Providing Active Help
Cobra makes use of the shell-completion system to define a framework allowing you to provide Active Help to your users. Active Help are messages (hints, warnings, etc) printed as the program is being used. Read more about it in [Active Help](active_help.md).

View File

@ -75,7 +75,7 @@ func genZshComp(buf io.StringWriter, name string, includeDesc bool) {
if !includeDesc {
compCmd = ShellCompNoDescRequestCmd
}
WriteStringAndCheck(buf, fmt.Sprintf(`#compdef _%[1]s %[1]s
WriteStringAndCheck(buf, fmt.Sprintf(`#compdef %[1]s
# zsh completion for %-36[1]s -*- shell-script -*-
@ -163,7 +163,24 @@ _%[1]s()
return
fi
local activeHelpMarker="%[8]s"
local endIndex=${#activeHelpMarker}
local startIndex=$((${#activeHelpMarker}+1))
local hasActiveHelp=0
while IFS='\n' read -r comp; do
# Check if this is an activeHelp statement (i.e., prefixed with $activeHelpMarker)
if [ "${comp[1,$endIndex]}" = "$activeHelpMarker" ];then
__%[1]s_debug "ActiveHelp found: $comp"
comp="${comp[$startIndex,-1]}"
if [ -n "$comp" ]; then
compadd -x "${comp}"
__%[1]s_debug "ActiveHelp will need delimiter"
hasActiveHelp=1
fi
continue
fi
if [ -n "$comp" ]; then
# If requested, completions are returned with a description.
# The description is preceded by a TAB character.
@ -171,7 +188,7 @@ _%[1]s()
# We first need to escape any : as part of the completion itself.
comp=${comp//:/\\:}
local tab=$(printf '\t')
local tab="$(printf '\t')"
comp=${comp//$tab/:}
__%[1]s_debug "Adding completion: ${comp}"
@ -180,6 +197,17 @@ _%[1]s()
fi
done < <(printf "%%s\n" "${out[@]}")
# Add a delimiter after the activeHelp statements, but only if:
# - there are completions following the activeHelp statements, or
# - file completion will be performed (so there will be choices after the activeHelp)
if [ $hasActiveHelp -eq 1 ]; then
if [ ${#completions} -ne 0 ] || [ $((directive & shellCompDirectiveNoFileComp)) -eq 0 ]; then
__%[1]s_debug "Adding activeHelp delimiter"
compadd -x "--"
hasActiveHelp=0
fi
fi
if [ $((directive & shellCompDirectiveNoSpace)) -ne 0 ]; then
__%[1]s_debug "Activating nospace."
noSpace="-S ''"
@ -202,7 +230,7 @@ _%[1]s()
_arguments '*:filename:'"$filteringCmd"
elif [ $((directive & shellCompDirectiveFilterDirs)) -ne 0 ]; then
# File completion for directories only
local subDir
local subdir
subdir="${completions[1]}"
if [ -n "$subdir" ]; then
__%[1]s_debug "Listing directories in $subdir"
@ -250,9 +278,10 @@ _%[1]s()
# don't run the completion function when being source-ed or eval-ed
if [ "$funcstack[1]" = "_%[1]s" ]; then
_%[1]s
_%[1]s
fi
`, name, compCmd,
ShellCompDirectiveError, ShellCompDirectiveNoSpace, ShellCompDirectiveNoFileComp,
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs))
ShellCompDirectiveFilterFileExt, ShellCompDirectiveFilterDirs,
activeHelpMarker))
}