mirror of
https://gitea.com/Lydanne/buildx.git
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108 lines
3.0 KiB
Go
108 lines
3.0 KiB
Go
/*
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Copyright 2020 The Compose Specification Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package transform
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import (
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"github.com/compose-spec/compose-go/v2/tree"
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)
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type transformFunc func(data any, p tree.Path) (any, error)
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var transformers = map[tree.Path]transformFunc{}
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func init() {
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transformers["services.*"] = transformService
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transformers["services.*.build.secrets.*"] = transformFileMount
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transformers["services.*.build.additional_contexts"] = transformKeyValue
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transformers["services.*.depends_on"] = transformDependsOn
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transformers["services.*.env_file"] = transformEnvFile
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transformers["services.*.extends"] = transformExtends
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transformers["services.*.networks"] = transformServiceNetworks
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transformers["services.*.volumes.*"] = transformVolumeMount
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transformers["services.*.secrets.*"] = transformFileMount
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transformers["services.*.configs.*"] = transformFileMount
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transformers["services.*.ports"] = transformPorts
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transformers["services.*.build"] = transformBuild
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transformers["services.*.build.ssh"] = transformSSH
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transformers["services.*.ulimits.*"] = transformUlimits
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transformers["services.*.build.ulimits.*"] = transformUlimits
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transformers["volumes.*"] = transformMaybeExternal
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transformers["networks.*"] = transformMaybeExternal
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transformers["secrets.*"] = transformMaybeExternal
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transformers["configs.*"] = transformMaybeExternal
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transformers["include.*"] = transformInclude
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}
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// Canonical transforms a compose model into canonical syntax
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func Canonical(yaml map[string]any) (map[string]any, error) {
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canonical, err := transform(yaml, tree.NewPath())
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if err != nil {
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return nil, err
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}
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return canonical.(map[string]any), nil
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}
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func transform(data any, p tree.Path) (any, error) {
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for pattern, transformer := range transformers {
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if p.Matches(pattern) {
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t, err := transformer(data, p)
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if err != nil {
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return nil, err
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}
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return t, nil
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}
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}
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switch v := data.(type) {
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case map[string]any:
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a, err := transformMapping(v, p)
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if err != nil {
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return a, err
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}
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return v, nil
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case []any:
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a, err := transformSequence(v, p)
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if err != nil {
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return a, err
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}
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return v, nil
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default:
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return data, nil
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}
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}
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func transformSequence(v []any, p tree.Path) ([]any, error) {
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for i, e := range v {
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t, err := transform(e, p.Next("[]"))
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if err != nil {
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return nil, err
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}
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v[i] = t
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}
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return v, nil
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}
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func transformMapping(v map[string]any, p tree.Path) (map[string]any, error) {
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for k, e := range v {
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t, err := transform(e, p.Next(k))
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if err != nil {
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return nil, err
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}
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v[k] = t
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}
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return v, nil
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}
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