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Fixed bug that misjudged applet arguments as mimixbox arguments.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,154 @@ | ||
| // | ||
| // mimixbox/internal/applets/fileutils/rmdir/rmdir.go | ||
| // | ||
| // Copyright 2021 Naohiro CHIKAMATSU | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
| package rmdir | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| mb "mimixbox/internal/lib" | ||
| "os" | ||
| "path/filepath" | ||
| "strings" | ||
|
|
||
| "github.com/jessevdk/go-flags" | ||
| ) | ||
|
|
||
| const cmdName string = "rmdir" | ||
|
|
||
| const version = "1.0.0" | ||
|
|
||
| var osExit = os.Exit | ||
|
|
||
| // Exit code | ||
| const ( | ||
| ExitSuccess int = iota // 0 | ||
| ExitFailuer | ||
| ) | ||
|
|
||
| type options struct { | ||
| Ignore bool `short:"i" long:"ignore-fail-on-non-empty" description:"Ignore the error if the directory is not empty"` | ||
| Parents bool `short:"p" long:"parents" description:"Remove DIRECTORY and its parents"` | ||
| Version bool `short:"v" long:"version" description:"Show rmdir command version"` | ||
| } | ||
|
|
||
| func Run() (int, error) { | ||
| var opts options | ||
| var args []string | ||
| var err error | ||
| var status int | ||
|
|
||
| if args, err = parseArgs(&opts); err != nil { | ||
| return ExitFailuer, nil | ||
| } | ||
|
|
||
| // Coremb will continue to delete files as much as possible. | ||
| // MimixBox stops processing if an error occurs even once. | ||
| for _, path := range args { | ||
| if status, err := rmdir(path, opts); err != nil { | ||
| return status, err | ||
| } | ||
| } | ||
| return status, nil | ||
| } | ||
|
|
||
| func rmdir(path string, opts options) (int, error) { | ||
| if err := validBeforeRemove(path); err != nil { | ||
| return ExitFailuer, err | ||
| } | ||
|
|
||
| var target string | ||
| if opts.Parents { | ||
| target = ancestorDir(path) | ||
| } else { | ||
| target = path | ||
| } | ||
|
|
||
| _, files, err := mb.Walk(target) | ||
| if err != nil { | ||
| return ExitFailuer, err | ||
| } | ||
| if len(files) != 0 { | ||
| if opts.Ignore { | ||
| return ExitSuccess, nil | ||
| } | ||
| return ExitFailuer, errors.New("Can't remove " + path + ": It's not empty directory") | ||
| } | ||
|
|
||
| // The contents of the directory are empty. Delete directories at once | ||
| if err := os.RemoveAll(target); err != nil { | ||
| return ExitFailuer, err | ||
| } | ||
| return ExitSuccess, nil | ||
| } | ||
|
|
||
| func ancestorDir(path string) string { | ||
| dirs := strings.Split(path, string(filepath.Separator)) | ||
| return dirs[0] | ||
| } | ||
|
|
||
| func validBeforeRemove(path string) error { | ||
| if !mb.Exists(path) { | ||
| return errors.New("can't remove " + path + ": No such file or directory exists") | ||
| } | ||
|
|
||
| if mb.IsFile(path) { | ||
| return errors.New("can't remove " + path + ": It's not directory") | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func parseArgs(opts *options) ([]string, error) { | ||
| p := initParser(opts) | ||
|
|
||
| args, err := p.Parse() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| if opts.Version { | ||
| showVersion() | ||
| osExit(ExitSuccess) | ||
| } | ||
|
|
||
| if !isValidArgNr(args) { | ||
| showHelp(p) | ||
| osExit(ExitFailuer) | ||
| } | ||
| return args, nil | ||
| } | ||
|
|
||
| func initParser(opts *options) *flags.Parser { | ||
| parser := flags.NewParser(opts, flags.Default) | ||
| parser.Name = cmdName | ||
| parser.Usage = "[OPTIONS] PATH" | ||
|
|
||
| return parser | ||
| } | ||
|
|
||
| func isValidArgNr(args []string) bool { | ||
| return len(args) >= 1 | ||
| } | ||
|
|
||
| func showVersion() { | ||
| description := cmdName + " version " + version + " (under Apache License verison 2.0)\n" | ||
| fmt.Print(description) | ||
| } | ||
|
|
||
| func showHelp(p *flags.Parser) { | ||
| p.WriteHelp(os.Stdout) | ||
| } |