mirror of
https://github.com/docker/compose.git
synced 2025-11-04 05:34:09 +01:00
291 lines
8.3 KiB
Go
291 lines
8.3 KiB
Go
/*
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Copyright 2020 Docker Compose CLI 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 yaml
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import (
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"fmt"
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"io"
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"os"
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"path/filepath"
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"sort"
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"strings"
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"github.com/spf13/cobra"
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"github.com/spf13/pflag"
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yaml "gopkg.in/yaml.v3"
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)
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type cmdOption struct {
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Option string
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Shorthand string `yaml:",omitempty"`
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ValueType string `yaml:"value_type,omitempty"`
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DefaultValue string `yaml:"default_value,omitempty"`
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Description string `yaml:",omitempty"`
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Deprecated bool
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MinAPIVersion string `yaml:"min_api_version,omitempty"`
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Experimental bool
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ExperimentalCLI bool
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Kubernetes bool
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Swarm bool
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OSType string `yaml:"os_type,omitempty"`
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}
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type cmdDoc struct {
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Name string `yaml:"command"`
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SeeAlso []string `yaml:"parent,omitempty"`
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Version string `yaml:"engine_version,omitempty"`
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Aliases string `yaml:",omitempty"`
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Short string `yaml:",omitempty"`
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Long string `yaml:",omitempty"`
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Usage string `yaml:",omitempty"`
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Pname string `yaml:",omitempty"`
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Plink string `yaml:",omitempty"`
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Cname []string `yaml:",omitempty"`
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Clink []string `yaml:",omitempty"`
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Options []cmdOption `yaml:",omitempty"`
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InheritedOptions []cmdOption `yaml:"inherited_options,omitempty"`
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Example string `yaml:"examples,omitempty"`
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Deprecated bool
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MinAPIVersion string `yaml:"min_api_version,omitempty"`
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Experimental bool
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ExperimentalCLI bool
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Kubernetes bool
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Swarm bool
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OSType string `yaml:"os_type,omitempty"`
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}
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// GenYamlTree creates yaml structured ref files
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func GenYamlTree(cmd *cobra.Command, dir string) error {
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emptyStr := func(s string) string { return "" }
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return GenYamlTreeCustom(cmd, dir, emptyStr)
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}
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// GenYamlTreeCustom creates yaml structured ref files
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func GenYamlTreeCustom(cmd *cobra.Command, dir string, filePrepender func(string) string) error {
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for _, c := range cmd.Commands() {
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if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
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continue
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}
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if err := GenYamlTreeCustom(c, dir, filePrepender); err != nil {
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return err
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}
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}
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if !cmd.HasParent() {
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return nil
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}
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basename := strings.Replace(cmd.CommandPath(), " ", "_", -1) + ".yaml"
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filename := filepath.Join(dir, basename)
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f, err := os.Create(filename)
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if err != nil {
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return err
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}
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defer f.Close() //nolint: errcheck
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if _, err := io.WriteString(f, filePrepender(filename)); err != nil {
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return err
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}
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return GenYamlCustom(cmd, f)
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}
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// GenYamlCustom creates custom yaml output
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// nolint: gocyclo
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func GenYamlCustom(cmd *cobra.Command, w io.Writer) error {
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cliDoc := cmdDoc{}
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cliDoc.Name = cmd.CommandPath()
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cliDoc.Aliases = strings.Join(cmd.Aliases, ", ")
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cliDoc.Short = cmd.Short
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cliDoc.Long = cmd.Long
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if len(cliDoc.Long) == 0 {
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cliDoc.Long = cliDoc.Short
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}
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if cmd.Runnable() {
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cliDoc.Usage = cmd.UseLine()
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}
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if len(cmd.Example) > 0 {
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cliDoc.Example = cmd.Example
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}
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if len(cmd.Deprecated) > 0 {
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cliDoc.Deprecated = true
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}
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// Check recursively so that, e.g., `docker stack ls` returns the same output as `docker stack`
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for curr := cmd; curr != nil; curr = curr.Parent() {
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if v, ok := curr.Annotations["version"]; ok && cliDoc.MinAPIVersion == "" {
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cliDoc.MinAPIVersion = v
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}
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if _, ok := curr.Annotations["experimental"]; ok && !cliDoc.Experimental {
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cliDoc.Experimental = true
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}
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if _, ok := curr.Annotations["experimentalCLI"]; ok && !cliDoc.ExperimentalCLI {
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cliDoc.ExperimentalCLI = true
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}
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if _, ok := curr.Annotations["kubernetes"]; ok && !cliDoc.Kubernetes {
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cliDoc.Kubernetes = true
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}
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if _, ok := curr.Annotations["swarm"]; ok && !cliDoc.Swarm {
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cliDoc.Swarm = true
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}
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if os, ok := curr.Annotations["ostype"]; ok && cliDoc.OSType == "" {
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cliDoc.OSType = os
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}
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}
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flags := cmd.NonInheritedFlags()
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if flags.HasFlags() {
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cliDoc.Options = genFlagResult(flags)
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}
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flags = cmd.InheritedFlags()
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if flags.HasFlags() {
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cliDoc.InheritedOptions = genFlagResult(flags)
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}
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if hasSeeAlso(cmd) {
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if cmd.HasParent() {
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parent := cmd.Parent()
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cliDoc.Pname = parent.CommandPath()
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link := cliDoc.Pname + ".yaml"
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cliDoc.Plink = strings.Replace(link, " ", "_", -1)
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cmd.VisitParents(func(c *cobra.Command) {
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if c.DisableAutoGenTag {
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cmd.DisableAutoGenTag = c.DisableAutoGenTag
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}
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})
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}
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children := cmd.Commands()
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sort.Sort(byName(children))
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for _, child := range children {
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if !child.IsAvailableCommand() || child.IsAdditionalHelpTopicCommand() {
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continue
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}
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currentChild := cliDoc.Name + " " + child.Name()
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cliDoc.Cname = append(cliDoc.Cname, cliDoc.Name+" "+child.Name())
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link := currentChild + ".yaml"
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cliDoc.Clink = append(cliDoc.Clink, strings.Replace(link, " ", "_", -1))
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}
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}
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final, err := yaml.Marshal(&cliDoc)
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if err != nil {
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fmt.Println(err)
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os.Exit(1)
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}
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if _, err := fmt.Fprintln(w, string(final)); err != nil {
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return err
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}
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return nil
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}
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func genFlagResult(flags *pflag.FlagSet) []cmdOption {
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var (
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result []cmdOption
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opt cmdOption
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)
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flags.VisitAll(func(flag *pflag.Flag) {
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opt = cmdOption{
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Option: flag.Name,
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ValueType: flag.Value.Type(),
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DefaultValue: forceMultiLine(flag.DefValue),
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Description: forceMultiLine(flag.Usage),
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Deprecated: len(flag.Deprecated) > 0,
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}
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// Todo, when we mark a shorthand is deprecated, but specify an empty message.
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// The flag.ShorthandDeprecated is empty as the shorthand is deprecated.
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// Using len(flag.ShorthandDeprecated) > 0 can't handle this, others are ok.
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if !(len(flag.ShorthandDeprecated) > 0) && len(flag.Shorthand) > 0 {
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opt.Shorthand = flag.Shorthand
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}
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if _, ok := flag.Annotations["experimental"]; ok {
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opt.Experimental = true
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}
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if v, ok := flag.Annotations["version"]; ok {
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opt.MinAPIVersion = v[0]
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}
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if _, ok := flag.Annotations["experimentalCLI"]; ok {
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opt.ExperimentalCLI = true
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}
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if _, ok := flag.Annotations["kubernetes"]; ok {
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opt.Kubernetes = true
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}
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if _, ok := flag.Annotations["swarm"]; ok {
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opt.Swarm = true
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}
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// Note that the annotation can have multiple ostypes set, however, multiple
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// values are currently not used (and unlikely will).
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//
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// To simplify usage of the os_type property in the YAML, and for consistency
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// with the same property for commands, we're only using the first ostype that's set.
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if ostypes, ok := flag.Annotations["ostype"]; ok && len(opt.OSType) == 0 && len(ostypes) > 0 {
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opt.OSType = ostypes[0]
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}
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result = append(result, opt)
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})
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return result
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}
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// Temporary workaround for yaml lib generating incorrect yaml with long strings
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// that do not contain \n.
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func forceMultiLine(s string) string {
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if len(s) > 60 && !strings.Contains(s, "\n") {
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s = s + "\n"
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}
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return s
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}
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// Small duplication for cobra utils
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func hasSeeAlso(cmd *cobra.Command) bool {
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if cmd.HasParent() {
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return true
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}
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for _, c := range cmd.Commands() {
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if !c.IsAvailableCommand() || c.IsAdditionalHelpTopicCommand() {
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continue
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}
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return true
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}
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return false
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}
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// ParseMDContent parse markdown file looking for Description and Examples sections
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func ParseMDContent(mdString string) (description string, examples string) {
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parsedContent := strings.Split(mdString, "\n## ")
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for _, s := range parsedContent {
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if strings.Index(s, "Description") == 0 {
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description = strings.TrimSpace(strings.TrimPrefix(s, "Description"))
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}
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if strings.Index(s, "Examples") == 0 {
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examples = strings.TrimSpace(strings.TrimPrefix(s, "Examples"))
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}
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}
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return description, examples
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}
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type byName []*cobra.Command
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func (s byName) Len() int { return len(s) }
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func (s byName) Swap(i, j int) { s[i], s[j] = s[j], s[i] }
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func (s byName) Less(i, j int) bool { return s[i].Name() < s[j].Name() }
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