mirror of https://github.com/docker/compose.git
121 lines
3.1 KiB
Go
121 lines
3.1 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 main
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import (
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"fmt"
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"io/ioutil"
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"log"
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"os"
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"path/filepath"
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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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"github.com/docker/compose-cli/cli/cmd/compose"
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. "github.com/docker/compose-cli/docs/yaml"
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)
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const descriptionSourcePath = "docs/reference/"
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func generateCliYaml(opts *options) error {
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cmd := &cobra.Command{Use: "docker"}
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cmd.AddCommand(compose.RootCommand("local", nil))
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disableFlagsInUseLine(cmd)
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source := filepath.Join(opts.source, descriptionSourcePath)
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if err := loadLongDescription(cmd, source); err != nil {
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return err
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}
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cmd.DisableAutoGenTag = true
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return GenYamlTree(cmd, opts.target)
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}
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func disableFlagsInUseLine(cmd *cobra.Command) {
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visitAll(cmd, func(ccmd *cobra.Command) {
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// do not add a `[flags]` to the end of the usage line.
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ccmd.DisableFlagsInUseLine = true
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})
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}
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// visitAll will traverse all commands from the root.
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// This is different from the VisitAll of cobra.Command where only parents
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// are checked.
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func visitAll(root *cobra.Command, fn func(*cobra.Command)) {
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for _, cmd := range root.Commands() {
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visitAll(cmd, fn)
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}
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fn(root)
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}
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func loadLongDescription(cmd *cobra.Command, path ...string) error {
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for _, cmd := range cmd.Commands() {
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if cmd.Name() == "" {
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continue
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}
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fullpath := filepath.Join(path[0], strings.Join(append(path[1:], cmd.Name()), "_")+".md")
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if cmd.HasSubCommands() {
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if err := loadLongDescription(cmd, path[0], cmd.Name()); err != nil {
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return err
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}
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}
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if _, err := os.Stat(fullpath); err != nil {
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log.Printf("WARN: %s does not exist, skipping\n", fullpath)
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continue
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}
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content, err := ioutil.ReadFile(fullpath)
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if err != nil {
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return err
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}
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description, examples := ParseMDContent(string(content))
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cmd.Long = description
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cmd.Example = examples
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}
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return nil
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}
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type options struct {
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source string
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target string
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}
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func parseArgs() (*options, error) {
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opts := &options{}
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cwd, _ := os.Getwd()
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flags := pflag.NewFlagSet(os.Args[0], pflag.ContinueOnError)
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flags.StringVar(&opts.source, "root", cwd, "Path to project root")
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flags.StringVar(&opts.target, "target", filepath.Join(cwd, "docs", "reference"), "Target path for generated yaml files")
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err := flags.Parse(os.Args[1:])
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return opts, err
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}
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func main() {
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opts, err := parseArgs()
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if err != nil {
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fmt.Fprintln(os.Stderr, err.Error())
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}
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fmt.Printf("Project root: %s\n", opts.source)
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fmt.Printf("Generating yaml files into %s\n", opts.target)
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if err := generateCliYaml(opts); err != nil {
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fmt.Fprintf(os.Stderr, "Failed to generate yaml files: %s\n", err.Error())
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}
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}
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