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Merge pull request #309 from numtide/find-tree-root
cli: search for the tree root by default
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commit
2454542a36
@ -13,10 +13,11 @@ type Format struct {
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WorkingDirectory kong.ChangeDirFlag `default:"." short:"C" help:"Run as if treefmt was started in the specified working directory instead of the current working directory."`
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WorkingDirectory kong.ChangeDirFlag `default:"." short:"C" help:"Run as if treefmt was started in the specified working directory instead of the current working directory."`
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NoCache bool `help:"Ignore the evaluation cache entirely. Useful for CI."`
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NoCache bool `help:"Ignore the evaluation cache entirely. Useful for CI."`
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ClearCache bool `short:"c" help:"Reset the evaluation cache. Use in case the cache is not precise enough."`
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ClearCache bool `short:"c" help:"Reset the evaluation cache. Use in case the cache is not precise enough."`
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ConfigFile string `type:"existingfile" default:"./treefmt.toml" help:"The config file to use."`
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ConfigFile string `type:"existingfile" help:"Load the config file from the given path (defaults to searching upwards for treefmt.toml)."`
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FailOnChange bool `help:"Exit with error if any changes were made. Useful for CI."`
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FailOnChange bool `help:"Exit with error if any changes were made. Useful for CI."`
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Formatters []string `short:"f" help:"Specify formatters to apply. Defaults to all formatters."`
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Formatters []string `short:"f" help:"Specify formatters to apply. Defaults to all formatters."`
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TreeRoot string `type:"existingdir" default:"." help:"The root directory from which treefmt will start walking the filesystem."`
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TreeRoot string `type:"existingdir" xor:"tree-root" help:"The root directory from which treefmt will start walking the filesystem (defaults to the directory containing the config file)."`
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TreeRootFile string `type:"string" xor:"tree-root" help:"File to search for to find the project root (if --tree-root is not passed)."`
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Walk walk.Type `enum:"auto,git,filesystem" default:"auto" help:"The method used to traverse the files within --tree-root. Currently supports 'auto', 'git' or 'filesystem'."`
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Walk walk.Type `enum:"auto,git,filesystem" default:"auto" help:"The method used to traverse the files within --tree-root. Currently supports 'auto', 'git' or 'filesystem'."`
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Verbosity int `name:"verbose" short:"v" type:"counter" default:"0" env:"LOG_LEVEL" help:"Set the verbosity of logs e.g. -vv."`
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Verbosity int `name:"verbose" short:"v" type:"counter" default:"0" env:"LOG_LEVEL" help:"Set the verbosity of logs e.g. -vv."`
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Version bool `name:"version" short:"V" help:"Print version."`
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Version bool `name:"version" short:"V" help:"Print version."`
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@ -69,6 +69,37 @@ func (f *Format) Run() (err error) {
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}
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}
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}()
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}()
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// find the config file unless specified
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if Cli.ConfigFile == "" {
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pwd, err := os.Getwd()
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if err != nil {
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return err
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}
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Cli.ConfigFile, _, err = findUp(pwd, "treefmt.toml")
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if err != nil {
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return err
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}
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}
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// default the tree root to the directory containing the config file
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if Cli.TreeRoot == "" {
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Cli.TreeRoot = filepath.Dir(Cli.ConfigFile)
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}
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// search the tree root using the --tree-root-file if specified
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if Cli.TreeRootFile != "" {
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pwd, err := os.Getwd()
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if err != nil {
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return err
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}
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_, Cli.TreeRoot, err = findUp(pwd, Cli.TreeRootFile)
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if err != nil {
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return err
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}
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}
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log.Debugf("config-file=%s tree-root=%s", Cli.ConfigFile, Cli.TreeRoot)
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// read config
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// read config
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cfg, err := config.ReadFile(Cli.ConfigFile, Cli.Formatters)
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cfg, err := config.ReadFile(Cli.ConfigFile, Cli.Formatters)
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if err != nil {
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if err != nil {
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@ -384,3 +415,56 @@ func applyFormatters(ctx context.Context) func() error {
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return nil
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return nil
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}
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}
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}
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}
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func findUp(searchDir string, fileName string) (path string, dir string, err error) {
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for _, dir := range eachDir(searchDir) {
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path := filepath.Join(dir, fileName)
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if fileExists(path) {
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return path, dir, nil
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}
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}
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return "", "", fmt.Errorf("could not find %s in %s", fileName, searchDir)
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}
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func eachDir(path string) (paths []string) {
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path, err := filepath.Abs(path)
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if err != nil {
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return
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}
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paths = []string{path}
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if path == "/" {
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return
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}
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for i := len(path) - 1; i >= 0; i-- {
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if path[i] == os.PathSeparator {
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path = path[:i]
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if path == "" {
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path = "/"
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}
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paths = append(paths, path)
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}
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}
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return
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}
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func fileExists(path string) bool {
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// Some broken filesystems like SSHFS return file information on stat() but
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// then cannot open the file. So we use os.Open.
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f, err := os.Open(path)
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if err != nil {
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return false
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}
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defer f.Close()
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// Next, check that the file is a regular file.
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fi, err := f.Stat()
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if err != nil {
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return false
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}
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return fi.Mode().IsRegular()
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}
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