vendor: update compose-go to v2.0.0-rc.3

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

vendor/github.com/compose-spec/compose-go/v2/override/merge.go

@@ -0,0 +1,252 @@
+/*
+   Copyright 2020 The Compose Specification Authors.
+
+   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 override
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/compose-spec/compose-go/v2/tree"
+	"golang.org/x/exp/slices"
+)
+
+// Merge applies overrides to a config model
+func Merge(right, left map[string]any) (map[string]any, error) {
+	merged, err := mergeYaml(right, left, tree.NewPath())
+	if err != nil {
+		return nil, err
+	}
+	return merged.(map[string]any), nil
+}
+
+type merger func(any, any, tree.Path) (any, error)
+
+// mergeSpecials defines the custom rules applied by compose when merging yaml trees
+var mergeSpecials = map[tree.Path]merger{}
+
+func init() {
+	mergeSpecials["networks.*.ipam.config"] = mergeIPAMConfig
+	mergeSpecials["services.*.annotations"] = mergeToSequence
+	mergeSpecials["services.*.build"] = mergeBuild
+	mergeSpecials["services.*.build.args"] = mergeToSequence
+	mergeSpecials["services.*.build.additional_contexts"] = mergeToSequence
+	mergeSpecials["services.*.build.labels"] = mergeToSequence
+	mergeSpecials["services.*.command"] = override
+	mergeSpecials["services.*.depends_on"] = mergeDependsOn
+	mergeSpecials["services.*.deploy.labels"] = mergeToSequence
+	mergeSpecials["services.*.dns"] = mergeToSequence
+	mergeSpecials["services.*.dns_opt"] = mergeToSequence
+	mergeSpecials["services.*.dns_search"] = mergeToSequence
+	mergeSpecials["services.*.entrypoint"] = override
+	mergeSpecials["services.*.env_file"] = mergeToSequence
+	mergeSpecials["services.*.environment"] = mergeToSequence
+	mergeSpecials["services.*.extra_hosts"] = mergeToSequence
+	mergeSpecials["services.*.healthcheck.test"] = override
+	mergeSpecials["services.*.labels"] = mergeToSequence
+	mergeSpecials["services.*.logging"] = mergeLogging
+	mergeSpecials["services.*.networks"] = mergeNetworks
+	mergeSpecials["services.*.sysctls"] = mergeToSequence
+	mergeSpecials["services.*.tmpfs"] = mergeToSequence
+	mergeSpecials["services.*.ulimits.*"] = mergeUlimit
+}
+
+// mergeYaml merges map[string]any yaml trees handling special rules
+func mergeYaml(e any, o any, p tree.Path) (any, error) {
+	for pattern, merger := range mergeSpecials {
+		if p.Matches(pattern) {
+			merged, err := merger(e, o, p)
+			if err != nil {
+				return nil, err
+			}
+			return merged, nil
+		}
+	}
+	if o == nil {
+		return e, nil
+	}
+	switch value := e.(type) {
+	case map[string]any:
+		other, ok := o.(map[string]any)
+		if !ok {
+			return nil, fmt.Errorf("cannot override %s", p)
+		}
+		return mergeMappings(value, other, p)
+	case []any:
+		other, ok := o.([]any)
+		if !ok {
+			return nil, fmt.Errorf("cannot override %s", p)
+		}
+		return append(value, other...), nil
+	default:
+		return o, nil
+	}
+}
+
+func mergeMappings(mapping map[string]any, other map[string]any, p tree.Path) (map[string]any, error) {
+	for k, v := range other {
+		e, ok := mapping[k]
+		if !ok || strings.HasPrefix(k, "x-") {
+			mapping[k] = v
+			continue
+		}
+		next := p.Next(k)
+		merged, err := mergeYaml(e, v, next)
+		if err != nil {
+			return nil, err
+		}
+		mapping[k] = merged
+	}
+	return mapping, nil
+}
+
+// logging driver options are merged only when both compose file define the same driver
+func mergeLogging(c any, o any, p tree.Path) (any, error) {
+	config := c.(map[string]any)
+	other := o.(map[string]any)
+	// we override logging config if source and override have the same driver set, or none
+	d, ok1 := other["driver"]
+	o, ok2 := config["driver"]
+	if d == o || !ok1 || !ok2 {
+		return mergeMappings(config, other, p)
+	}
+	return other, nil
+}
+
+func mergeBuild(c any, o any, path tree.Path) (any, error) {
+	toBuild := func(c any) map[string]any {
+		switch v := c.(type) {
+		case string:
+			return map[string]any{
+				"context": v,
+			}
+		case map[string]any:
+			return v
+		}
+		return nil
+	}
+	return mergeMappings(toBuild(c), toBuild(o), path)
+}
+
+func mergeDependsOn(c any, o any, path tree.Path) (any, error) {
+	right := convertIntoMapping(c, map[string]any{
+		"condition": "service_started",
+		"required":  true,
+	})
+	left := convertIntoMapping(o, map[string]any{
+		"condition": "service_started",
+		"required":  true,
+	})
+	return mergeMappings(right, left, path)
+}
+
+func mergeNetworks(c any, o any, path tree.Path) (any, error) {
+	right := convertIntoMapping(c, nil)
+	left := convertIntoMapping(o, nil)
+	return mergeMappings(right, left, path)
+}
+
+func mergeToSequence(c any, o any, _ tree.Path) (any, error) {
+	right := convertIntoSequence(c)
+	left := convertIntoSequence(o)
+	return append(right, left...), nil
+}
+
+func convertIntoSequence(value any) []any {
+	switch v := value.(type) {
+	case map[string]any:
+		seq := make([]any, len(v))
+		i := 0
+		for k, v := range v {
+			if v == nil {
+				seq[i] = k
+			} else {
+				seq[i] = fmt.Sprintf("%s=%v", k, v)
+			}
+			i++
+		}
+		slices.SortFunc(seq, func(a, b any) bool {
+			return a.(string) < b.(string)
+		})
+		return seq
+	case []any:
+		return v
+	case string:
+		return []any{v}
+	}
+	return nil
+}
+
+func mergeUlimit(_ any, o any, p tree.Path) (any, error) {
+	over, ismapping := o.(map[string]any)
+	if base, ok := o.(map[string]any); ok && ismapping {
+		return mergeMappings(base, over, p)
+	}
+	return o, nil
+}
+
+func mergeIPAMConfig(c any, o any, path tree.Path) (any, error) {
+	var ipamConfigs []any
+	for _, original := range c.([]any) {
+		right := convertIntoMapping(original, nil)
+		for _, override := range o.([]any) {
+			left := convertIntoMapping(override, nil)
+			if left["subnet"] != right["subnet"] {
+				// check if left is already in ipamConfigs, add it if not and continue with the next config
+				if !slices.ContainsFunc(ipamConfigs, func(a any) bool {
+					return a.(map[string]any)["subnet"] == left["subnet"]
+				}) {
+					ipamConfigs = append(ipamConfigs, left)
+					continue
+				}
+			}
+			merged, err := mergeMappings(right, left, path)
+			if err != nil {
+				return nil, err
+			}
+			// find index of potential previous config with the same subnet in ipamConfigs
+			indexIfExist := slices.IndexFunc(ipamConfigs, func(a any) bool {
+				return a.(map[string]any)["subnet"] == merged["subnet"]
+			})
+			// if a previous config is already in ipamConfigs, replace it
+			if indexIfExist >= 0 {
+				ipamConfigs[indexIfExist] = merged
+			} else {
+				// or add the new config to ipamConfigs
+				ipamConfigs = append(ipamConfigs, merged)
+			}
+		}
+	}
+	return ipamConfigs, nil
+}
+
+func convertIntoMapping(a any, defaultValue any) map[string]any {
+	switch v := a.(type) {
+	case map[string]any:
+		return v
+	case []any:
+		converted := map[string]any{}
+		for _, s := range v {
+			converted[s.(string)] = defaultValue
+		}
+		return converted
+	}
+	return nil
+}
+
+func override(_ any, other any, _ tree.Path) (any, error) {
+	return other, nil
+}