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(GH-11) Add explain command and docs package
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,130 @@ | ||
| package explain | ||
|
|
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| import ( | ||
| "fmt" | ||
|
|
||
| "github.com/puppetlabs/pdkgo/pkg/docs" | ||
| "github.com/puppetlabs/prm/docs/md" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
|
||
| var ( | ||
| docsApi *docs.Docs | ||
| listTopics bool | ||
| format string | ||
| tag string | ||
| category string | ||
| topic string | ||
| // Possibly implement later to enable context aware filtering for tags/categories | ||
| // depending on which is filtered first? | ||
| // filteredDocs []docs.MarkdownDoc | ||
| ) | ||
|
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| func CreateCommand() *cobra.Command { | ||
| cmd := &cobra.Command{ | ||
| Use: "explain", | ||
| Short: "Present documentation about topics", | ||
| Long: "Present documentation about various topics, including...", | ||
| Args: validateArgCount, | ||
| ValidArgsFunction: flagCompletion, | ||
| PreRun: preExecute, | ||
| RunE: execute, | ||
| } | ||
|
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| dfs := md.GetDocsFS() | ||
| docsApi = &docs.Docs{ | ||
| DocsFileSystem: &dfs, | ||
| } | ||
|
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| cmd.Flags().SortFlags = false | ||
| cmd.Flags().BoolVarP(&listTopics, "list", "l", false, "list available topics") | ||
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| cmd.Flags().StringVarP(&format, "format", "f", "human", "display output in human or json format") | ||
| err := cmd.RegisterFlagCompletionFunc("format", func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { | ||
| return []string{"table", "json"}, cobra.ShellCompDirectiveNoFileComp | ||
| }) | ||
| cobra.CheckErr(err) | ||
|
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| cmd.Flags().StringVarP(&tag, "tag", "t", "", "filter available topics by tag") | ||
| err = cmd.RegisterFlagCompletionFunc("tag", func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { | ||
| if docsApi.ParsedDocsCache == nil { | ||
| preExecute(cmd, args) | ||
| } | ||
| return docsApi.ListTags(docsApi.ParsedDocsCache), cobra.ShellCompDirectiveNoFileComp | ||
| }) | ||
| cobra.CheckErr(err) | ||
|
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| cmd.Flags().StringVarP(&category, "category", "c", "", "filter available topics by category") | ||
| err = cmd.RegisterFlagCompletionFunc("category", func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { | ||
| if docsApi.ParsedDocsCache == nil { | ||
| preExecute(cmd, args) | ||
| } | ||
| return docsApi.ListCategories(docsApi.ParsedDocsCache), cobra.ShellCompDirectiveNoFileComp | ||
| }) | ||
| cobra.CheckErr(err) | ||
|
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| return cmd | ||
| } | ||
|
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| func preExecute(cmd *cobra.Command, args []string) { | ||
| docsApi.FindAndParse("content") | ||
| } | ||
|
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| func validateArgCount(cmd *cobra.Command, args []string) error { | ||
| // show available topics if user runs `pct explain` | ||
| if len(args) == 0 && !listTopics { | ||
| listTopics = true | ||
| } | ||
|
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| if len(args) == 1 { | ||
| if category != "" || tag != "" { | ||
| return fmt.Errorf("Specify a topic *or* search by tag/category") | ||
| } | ||
| topic = args[0] | ||
| } else if len(args) > 1 { | ||
| return fmt.Errorf("Specify only one topic to explain") | ||
| } | ||
|
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| return nil | ||
| } | ||
|
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| func flagCompletion(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) { | ||
| if docsApi.ParsedDocsCache == nil { | ||
| preExecute(cmd, args) | ||
| } | ||
| if len(args) != 0 { | ||
| return nil, cobra.ShellCompDirectiveNoFileComp | ||
| } | ||
|
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| return docsApi.CompleteTitle(docsApi.ParsedDocsCache, toComplete), cobra.ShellCompDirectiveNoSpace | cobra.ShellCompDirectiveNoFileComp | ||
| } | ||
|
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| func execute(cmd *cobra.Command, args []string) error { | ||
| docs := docsApi.ParsedDocsCache | ||
| if listTopics { | ||
| if format == "" { | ||
| format = "table" | ||
| } | ||
| if category != "" { | ||
| docs = docsApi.FilterByCategory(category, docs) | ||
| } | ||
| if tag != "" { | ||
| docs = docsApi.FilterByTag(tag, docs) | ||
| } | ||
| // If there's only one match, should we render the matching doc? | ||
| docsApi.FormatFrontMatter(format, docs) | ||
| } else if topic != "" { | ||
| doc, err := docsApi.SelectDocument(topic, docsApi.ParsedDocsCache) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| output, err := docsApi.RenderDocument(doc) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| fmt.Print(output) | ||
| // If --online, open in browser and do not display | ||
| // Should we have a --scroll mode? | ||
| } | ||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,10 @@ | ||
| package md | ||
|
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| import "embed" | ||
|
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| //go:embed content/*** | ||
| var DocsFS embed.FS | ||
|
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| func GetDocsFS() embed.FS { | ||
| return DocsFS | ||
| } |
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