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Add new BashCompSubdirsInDir annotation

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This first `cd` to a specified directory, then
lists the subdirectories therein with `_filedir -d`.

This can be used by e.g. `hugo --theme=[Tab][Tab]`, which would
give a list of subdirectories under the `themes` directory.
This commit is contained in:
Anthony Fok 2015-08-09 13:30:58 -06:00
parent 385fc87e43
commit 1e6fdf608f
2 changed files with 24 additions and 0 deletions
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17
bash_completions.go
View file

@ -13,6 +13,7 @@ import (
const (
BashCompFilenameExt = "cobra_annotation_bash_completion_filename_extentions"
BashCompOneRequiredFlag = "cobra_annotation_bash_completion_one_required_flag"
BashCompSubdirsInDir = "cobra_annotation_bash_completion_subdirs_in_dir"
)
func preamble(out *bytes.Buffer) {
@ -100,6 +101,12 @@ __handle_filename_extension_flag()
_filedir "@(${ext})"
}
__handle_subdirs_in_dir_flag()
{
local dir="$1"
pushd "${dir}" >/dev/null 2>&1 && _filedir -d && popd >/dev/null 2>&1
}
__handle_flag()
{
__debug "${FUNCNAME}: c is $c words[c] is ${words[c]}"
@ -226,6 +233,16 @@ func writeFlagHandler(name string, annotations map[string][]string, out *bytes.B
ext := "_filedir"
fmt.Fprintf(out, " flags_completion+=(%q)\n", ext)
}
case BashCompSubdirsInDir:
fmt.Fprintf(out, " flags_with_completion+=(%q)\n", name)
if len(value) == 1 {
ext := "__handle_subdirs_in_dir_flag " + value[0]
fmt.Fprintf(out, " flags_completion+=(%q)\n", ext)
} else {
ext := "_filedir -d"
fmt.Fprintf(out, " flags_completion+=(%q)\n", ext)
}
}
}
}

7
bash_completions_test.go
View file

@ -56,6 +56,11 @@ func TestBashCompletions(t *testing.T) {
c.Flags().StringVar(&flagvalExt, "filename-ext", "", "Enter a filename (extension limited)")
c.MarkFlagFilename("filename-ext")
// subdirectories in a given directory
var flagvalTheme string
c.Flags().StringVar(&flagvalTheme, "theme", "", "theme to use (located in /themes/THEMENAME/)")
c.Flags().SetAnnotation("theme", BashCompSubdirsInDir, []string{"themes"})
out := new(bytes.Buffer)
c.GenBashCompletion(out)
str := out.String()
@ -75,6 +80,8 @@ func TestBashCompletions(t *testing.T) {
check(t, str, `flags_completion+=("_filedir")`)
// check for filename extension flags
check(t, str, `flags_completion+=("__handle_filename_extension_flag json|yaml|yml")`)
// check for subdirs_in_dir flags
check(t, str, `flags_completion+=("__handle_subdirs_in_dir_flag themes")`)
checkOmit(t, str, cmdDeprecated.Name())
}