diff options
| -rw-r--r-- | gopkgs/utils/utils.go | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/gopkgs/utils/utils.go b/gopkgs/utils/utils.go index 24121ed44c75..53136878dea3 100644 --- a/gopkgs/utils/utils.go +++ b/gopkgs/utils/utils.go @@ -9,6 +9,7 @@ import ( "net/http/httputil" "os" "os/user" + "path/filepath" ) // Return the absolute path to the current uesr's home directory. @@ -29,6 +30,44 @@ func FileExists(path string) bool { } } +// Return the absolute file path of `file` using the following resolution +// strategy: +// - Traverse and search upwards until you reach the user's home directory +// - Return the first path in `backupPaths` that exists +// - Fail +func Resolve(fileName string, backupPaths []string) string { + // TODO(wpcarro): Drop hardcoding when whoami behaves as expected. + boundary := "/home" + cwd := "." + files, _ := ioutil.ReadDir(cwd) + + for { + fullCwd, _ := filepath.Abs(cwd) + if fullCwd == boundary { + break + } + for _, file := range files { + if file.Name() == fileName { + path, _ := filepath.Abs(cwd + "/" + file.Name()) + return path + } + } + cwd += "/.." + files, _ = ioutil.ReadDir(cwd) + } + + // TODO(wpcarro): Support expanding these paths to allow the consumer to + // pass in relative paths, and paths with "~" in them. + for _, backup := range backupPaths { + if FileExists(backup) { + return backup + } + } + log.Fatal("Cannot find a run.json to use.") + // This code should be unreachable. + return "" +} + // Call log.Fatal with `err` when it's not nil. func FailOn(err error) { if err != nil { |