Function executeBlastRadiusSubcommand

blast_radius.go:169–255

(args []string)

}

func executeBlastRadiusSubcommand(args []string) int {
	limits := defaultBlastRadiusLimits()
	fs := flag.NewFlagSet("blast-radius", flag.ContinueOnError)
	fs.SetOutput(os.Stderr)

	// Format flags resolve last-wins: passing more than one simply uses the
	// last one on the command line (matching the original shell wrapper).
	format := blastRadiusFormatMarkdown
	chooseFormat := func(f blastRadiusFormat) func(string) error {
		return func(string) error {
			format = f
			return nil
		}
	}
	var help bool
	ref := fs.String("ref", "main", "Branch/ref to compare against")
	fs.BoolFunc("json", "Emit a single JSON object", chooseFormat(blastRadiusFormatJSON))
	fs.BoolFunc("markdown", "Emit Markdown output", chooseFormat(blastRadiusFormatMarkdown))
	fs.BoolFunc("md", "Emit Markdown output", chooseFormat(blastRadiusFormatMarkdown))
	fs.BoolFunc("text", "Emit plain text output", chooseFormat(blastRadiusFormatText))
	fs.BoolVar(&help, "help", false, "Show blast-radius help")
	fs.BoolVar(&help, "h", false, "Show blast-radius help")
	fs.IntVar(&limits.MaxTotalChars, "max-total-chars", limits.MaxTotalChars, "Hard cap for markdown/text output")
	fs.IntVar(&limits.MaxChangedFiles, "max-changed-files", limits.MaxChangedFiles, "Maximum changed files to include")
	fs.IntVar(&limits.MaxAffected, "max-affected", limits.MaxAffected, "Maximum affected files outside diff")
	fs.IntVar(&limits.MaxContext, "max-context", limits.MaxContext, "Maximum dependency context entries outside diff")
	fs.IntVar(&limits.MaxSnippets, "max-snippets", limits.MaxSnippets, "Maximum impact snippets")
	fs.IntVar(&limits.MaxSnippetsPerChanged, "max-snippets-per-changed", limits.MaxSnippetsPerChanged, "Maximum snippets per changed file")
	fs.IntVar(&limits.SnippetRadius, "snippet-radius", limits.SnippetRadius, "Lines of context around each snippet match")
	fs.IntVar(&limits.MaxSnippetChars, "max-snippet-chars", limits.MaxSnippetChars, "Maximum characters per snippet")
	fs.IntVar(&limits.MaxDiffChars, "max-diff-chars", limits.MaxDiffChars, "Maximum diff section characters")
	fs.IntVar(&limits.MaxDepsChars, "max-deps-chars", limits.MaxDepsChars, "Maximum dependency section characters")
	fs.IntVar(&limits.MaxImportersChars, "max-importers-chars", limits.MaxImportersChars, "Maximum importer section characters")
	fs.IntVar(&limits.MaxImporterFiles, "max-importer-files", limits.MaxImporterFiles, "Maximum changed files to render importer sections for")
	fs.IntVar(&limits.MaxImportersPerFile, "max-importers-per-file", limits.MaxImportersPerFile, "Maximum importer/import list entries per file in JSON")
	fs.Usage = func() {
		printBlastRadiusUsage(fs)
	}

	root, err := parseBlastRadiusArgs(fs, args)
	if err != nil {
		if errors.Is(err, flag.ErrHelp) {
			return 0
		}
		return 2
	}

	if help {
		fs.Usage()
		return 0
	}

	limits = clampBlastRadiusLimits(limits)
	absRoot, cleanup, err := resolveBlastRadiusRoot(root)
	if err != nil {
		fmt.Fprintf(os.Stderr, "Error preparing root: %v\n", err)
		return 1
	}