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xargs: fix command completion
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@rsteube
rsteube committed Sep 24, 2022
1 parent 26a8597 commit 12cd77b
Showing 1 changed file with 59 additions and 40 deletions.
99 changes: 59 additions & 40 deletions completers/xargs_completer/cmd/root.go
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Original file line number Diff line number Diff line change
Expand Up @@ -10,13 +10,11 @@ import (
)

var rootCmd = &cobra.Command{
Use: "xargs",
Short: "build and execute command lines from standard input",
Long: "https://linux.die.net/man/1/xargs",
Run: func(cmd *cobra.Command, args []string) {},
FParseErrWhitelist: cobra.FParseErrWhitelist{
UnknownFlags: true,
},
Use: "xargs",
Short: "build and execute command lines from standard input",
Long: "https://linux.die.net/man/1/xargs",
Run: func(cmd *cobra.Command, args []string) {},
DisableFlagParsing: true,
}

func Execute() error {
Expand All @@ -25,48 +23,69 @@ func Execute() error {
func init() {
carapace.Gen(rootCmd).Standalone()

rootCmd.Flags().StringS("E", "E", "", "set logical EOF string")
rootCmd.Flags().StringS("I", "I", "", "same as --replace=R")
rootCmd.Flags().StringP("arg-file", "a", "", "read arguments from FILE")
rootCmd.Flags().StringP("delimiter", "d", "", "items in input stream are separated by CHARACTER")
rootCmd.Flags().StringP("eof", "e", "", "equivalent to -E END if END is specified")
rootCmd.Flags().BoolP("exit", "x", false, "exit if the size (see -s) is exceeded")
rootCmd.Flags().Bool("help", false, "display this help and exit")
rootCmd.Flags().BoolP("interactive", "p", false, "prompt before running commands")
rootCmd.Flags().StringS("l", "l", "", "similar to -L but defaults to at most one non- blank input line")
rootCmd.Flags().StringP("max-args", "n", "", "use at most MAX-ARGS arguments per command line")
rootCmd.Flags().StringP("max-chars", "s", "", "limit length of command line to MAX-CHARS")
rootCmd.Flags().StringP("max-lines", "L", "", "use at most MAX-LINES non-blank input lines per command line")
rootCmd.Flags().StringP("max-procs", "P", "", "run at most MAX-PROCS processes at a time")
rootCmd.Flags().BoolP("no-run-if-empty", "r", false, "if there are no arguments, then do not run COMMAND")
rootCmd.Flags().BoolP("null", "0", false, "items are separated by a null")
rootCmd.Flags().BoolP("open-tty", "o", false, "Reopen stdin as /dev/tty in the child process")
rootCmd.Flags().String("process-slot-var", "", "set environment variable VAR in child processes")
rootCmd.Flags().StringP("replace", "i", "", "replace R in INITIAL-ARGS with names")
rootCmd.Flags().Bool("show-limits", false, "show limits on command-line length")
rootCmd.Flags().BoolP("verbose", "t", false, "print commands before executing them")
rootCmd.Flags().Bool("version", false, "output version information and exit")
carapace.Gen(rootCmd).PositionalAnyCompletion(
carapace.ActionCallback(func(c carapace.Context) carapace.Action {
firstPass := xargsCommand().Flags()
firstPass.Parse(c.Args)

if args := firstPass.Args(); len(args) > 0 {
executable := filepath.Base(args[0])
c.Args = args[1:]
return bridge.ActionCarapaceBin(executable).Invoke(c).ToA()
}
return carapace.ActionExecute(xargsCommand())
}),
)
}

func xargsCommand() *cobra.Command {
cmd := &cobra.Command{
Use: "xargs",
Short: "build and execute command lines from standard input",
Long: "https://linux.die.net/man/1/xargs",
Run: func(cmd *cobra.Command, args []string) {},
FParseErrWhitelist: cobra.FParseErrWhitelist{
UnknownFlags: true,
},
}

rootCmd.Flag("eof").NoOptDefVal = " "
rootCmd.Flag("replace").NoOptDefVal = "{}"
carapace.Gen(cmd).Standalone()

carapace.Gen(rootCmd).FlagCompletion(carapace.ActionMap{
cmd.Flags().StringS("E", "E", "", "set logical EOF string")
cmd.Flags().StringS("I", "I", "", "same as --replace=R")
cmd.Flags().StringP("arg-file", "a", "", "read arguments from FILE")
cmd.Flags().StringP("delimiter", "d", "", "items in input stream are separated by CHARACTER")
cmd.Flags().StringP("eof", "e", "", "equivalent to -E END if END is specified")
cmd.Flags().BoolP("exit", "x", false, "exit if the size (see -s) is exceeded")
cmd.Flags().Bool("help", false, "display this help and exit")
cmd.Flags().BoolP("interactive", "p", false, "prompt before running commands")
cmd.Flags().StringS("l", "l", "", "similar to -L but defaults to at most one non- blank input line")
cmd.Flags().StringP("max-args", "n", "", "use at most MAX-ARGS arguments per command line")
cmd.Flags().StringP("max-chars", "s", "", "limit length of command line to MAX-CHARS")
cmd.Flags().StringP("max-lines", "L", "", "use at most MAX-LINES non-blank input lines per command line")
cmd.Flags().StringP("max-procs", "P", "", "run at most MAX-PROCS processes at a time")
cmd.Flags().BoolP("no-run-if-empty", "r", false, "if there are no arguments, then do not run COMMAND")
cmd.Flags().BoolP("null", "0", false, "items are separated by a null")
cmd.Flags().BoolP("open-tty", "o", false, "Reopen stdin as /dev/tty in the child process")
cmd.Flags().String("process-slot-var", "", "set environment variable VAR in child processes")
cmd.Flags().StringP("replace", "i", "", "replace R in INITIAL-ARGS with names")
cmd.Flags().Bool("show-limits", false, "show limits on command-line length")
cmd.Flags().BoolP("verbose", "t", false, "print commands before executing them")
cmd.Flags().Bool("version", false, "output version information and exit")

cmd.Flag("eof").NoOptDefVal = " "
cmd.Flag("replace").NoOptDefVal = "{}"

carapace.Gen(cmd).FlagCompletion(carapace.ActionMap{
"arg-file": carapace.ActionFiles(),
})

carapace.Gen(rootCmd).PositionalCompletion(
carapace.Gen(cmd).PositionalCompletion(
carapace.Batch(
os.ActionPathExecutables(),
carapace.ActionFiles(),
).ToA(),
)

carapace.Gen(rootCmd).PositionalAnyCompletion(
carapace.ActionCallback(func(c carapace.Context) carapace.Action {
// TODO this does not yet work for flags as rootCmd flag completion has precendence
executable := filepath.Base(c.Args[0])
c.Args = c.Args[1:]
return bridge.ActionCarapaceBin(executable).Invoke(c).ToA()
}),
)
return cmd
}

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