mirror of
https://github.com/spf13/cobra
synced 2024-11-05 05:17:12 +00:00
Update shell completion to respect flag groups (#1659)
Signed-off-by: Marc Khouzam <marc.khouzam@montreal.ca> Co-authored-by: Marc Khouzam <marc.khouzam@montreal.ca>
This commit is contained in:
Marc Khouzam
GitHub
parent
b9ca5949e2
commit
5f2ec3c897
3 changed files with 238 additions and 0 deletions
|
|
@ -325,6 +325,9 @@ func (c *Command) getCompletions(args []string) (*Command, []string, ShellCompDi
|
|||
var completions []string
|
||||
var directive ShellCompDirective
|
||||
|
||||
// Enforce flag groups before doing flag completions
|
||||
finalCmd.enforceFlagGroupsForCompletion()
|
||||
|
||||
// Note that we want to perform flagname completion even if finalCmd.DisableFlagParsing==true;
|
||||
// doing this allows for completion of persistent flag names even for commands that disable flag parsing.
|
||||
//
|
||||
|
|
|
|||
|
|
@ -2691,3 +2691,189 @@ func TestFixedCompletions(t *testing.T) {
|
|||
t.Errorf("expected: %q, got: %q", expected, output)
|
||||
}
|
||||
}
|
||||
|
||||
func TestCompletionForGroupedFlags(t *testing.T) {
|
||||
getCmd := func() *Command {
|
||||
rootCmd := &Command{
|
||||
Use: "root",
|
||||
Run: emptyRun,
|
||||
}
|
||||
childCmd := &Command{
|
||||
Use: "child",
|
||||
ValidArgsFunction: func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) {
|
||||
return []string{"subArg"}, ShellCompDirectiveNoFileComp
|
||||
},
|
||||
Run: emptyRun,
|
||||
}
|
||||
rootCmd.AddCommand(childCmd)
|
||||
|
||||
rootCmd.PersistentFlags().Int("ingroup1", -1, "ingroup1")
|
||||
rootCmd.PersistentFlags().String("ingroup2", "", "ingroup2")
|
||||
|
||||
childCmd.Flags().Bool("ingroup3", false, "ingroup3")
|
||||
childCmd.Flags().Bool("nogroup", false, "nogroup")
|
||||
|
||||
// Add flags to a group
|
||||
childCmd.MarkFlagsRequiredTogether("ingroup1", "ingroup2", "ingroup3")
|
||||
|
||||
return rootCmd
|
||||
}
|
||||
|
||||
// Each test case uses a unique command from the function above.
|
||||
testcases := []struct {
|
||||
desc string
|
||||
args []string
|
||||
expectedOutput string
|
||||
}{
|
||||
{
|
||||
desc: "flags in group not suggested without - prefix",
|
||||
args: []string{"child", ""},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"subArg",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
{
|
||||
desc: "flags in group suggested with - prefix",
|
||||
args: []string{"child", "-"},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"--ingroup1",
|
||||
"--ingroup2",
|
||||
"--ingroup3",
|
||||
"--nogroup",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
{
|
||||
desc: "when flag in group present, other flags in group suggested even without - prefix",
|
||||
args: []string{"child", "--ingroup2", "value", ""},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"--ingroup1",
|
||||
"--ingroup3",
|
||||
"subArg",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
{
|
||||
desc: "when all flags in group present, flags not suggested without - prefix",
|
||||
args: []string{"child", "--ingroup1", "8", "--ingroup2", "value2", "--ingroup3", ""},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"subArg",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
{
|
||||
desc: "group ignored if some flags not applicable",
|
||||
args: []string{"--ingroup2", "value", ""},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"child",
|
||||
"completion",
|
||||
"help",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range testcases {
|
||||
t.Run(tc.desc, func(t *testing.T) {
|
||||
c := getCmd()
|
||||
args := []string{ShellCompNoDescRequestCmd}
|
||||
args = append(args, tc.args...)
|
||||
output, err := executeCommand(c, args...)
|
||||
switch {
|
||||
case err == nil && output != tc.expectedOutput:
|
||||
t.Errorf("expected: %q, got: %q", tc.expectedOutput, output)
|
||||
case err != nil:
|
||||
t.Errorf("Unexpected error %q", err)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestCompletionForMutuallyExclusiveFlags(t *testing.T) {
|
||||
getCmd := func() *Command {
|
||||
rootCmd := &Command{
|
||||
Use: "root",
|
||||
Run: emptyRun,
|
||||
}
|
||||
childCmd := &Command{
|
||||
Use: "child",
|
||||
ValidArgsFunction: func(cmd *Command, args []string, toComplete string) ([]string, ShellCompDirective) {
|
||||
return []string{"subArg"}, ShellCompDirectiveNoFileComp
|
||||
},
|
||||
Run: emptyRun,
|
||||
}
|
||||
rootCmd.AddCommand(childCmd)
|
||||
|
||||
rootCmd.PersistentFlags().IntSlice("ingroup1", []int{1}, "ingroup1")
|
||||
rootCmd.PersistentFlags().String("ingroup2", "", "ingroup2")
|
||||
|
||||
childCmd.Flags().Bool("ingroup3", false, "ingroup3")
|
||||
childCmd.Flags().Bool("nogroup", false, "nogroup")
|
||||
|
||||
// Add flags to a group
|
||||
childCmd.MarkFlagsMutuallyExclusive("ingroup1", "ingroup2", "ingroup3")
|
||||
|
||||
return rootCmd
|
||||
}
|
||||
|
||||
// Each test case uses a unique command from the function above.
|
||||
testcases := []struct {
|
||||
desc string
|
||||
args []string
|
||||
expectedOutput string
|
||||
}{
|
||||
{
|
||||
desc: "flags in mutually exclusive group not suggested without the - prefix",
|
||||
args: []string{"child", ""},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"subArg",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
{
|
||||
desc: "flags in mutually exclusive group suggested with the - prefix",
|
||||
args: []string{"child", "-"},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"--ingroup1",
|
||||
"--ingroup2",
|
||||
"--ingroup3",
|
||||
"--nogroup",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
{
|
||||
desc: "when flag in mutually exclusive group present, other flags in group not suggested even with the - prefix",
|
||||
args: []string{"child", "--ingroup1", "8", "-"},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"--ingroup1", // Should be suggested again since it is a slice
|
||||
"--nogroup",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
{
|
||||
desc: "group ignored if some flags not applicable",
|
||||
args: []string{"--ingroup1", "8", "-"},
|
||||
expectedOutput: strings.Join([]string{
|
||||
"--ingroup1",
|
||||
"--ingroup2",
|
||||
":4",
|
||||
"Completion ended with directive: ShellCompDirectiveNoFileComp", ""}, "\n"),
|
||||
},
|
||||
}
|
||||
|
||||
for _, tc := range testcases {
|
||||
t.Run(tc.desc, func(t *testing.T) {
|
||||
c := getCmd()
|
||||
args := []string{ShellCompNoDescRequestCmd}
|
||||
args = append(args, tc.args...)
|
||||
output, err := executeCommand(c, args...)
|
||||
switch {
|
||||
case err == nil && output != tc.expectedOutput:
|
||||
t.Errorf("expected: %q, got: %q", tc.expectedOutput, output)
|
||||
case err != nil:
|
||||
t.Errorf("Unexpected error %q", err)
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
|
|
|||
|
|
@ -172,3 +172,52 @@ func sortedKeys(m map[string]map[string]bool) []string {
|
|||
sort.Strings(keys)
|
||||
return keys
|
||||
}
|
||||
|
||||
// enforceFlagGroupsForCompletion will do the following:
|
||||
// - when a flag in a group is present, other flags in the group will be marked required
|
||||
// - when a flag in a mutually exclusive group is present, other flags in the group will be marked as hidden
|
||||
// This allows the standard completion logic to behave appropriately for flag groups
|
||||
func (c *Command) enforceFlagGroupsForCompletion() {
|
||||
if c.DisableFlagParsing {
|
||||
return
|
||||
}
|
||||
|
||||
flags := c.Flags()
|
||||
groupStatus := map[string]map[string]bool{}
|
||||
mutuallyExclusiveGroupStatus := map[string]map[string]bool{}
|
||||
c.Flags().VisitAll(func(pflag *flag.Flag) {
|
||||
processFlagForGroupAnnotation(flags, pflag, requiredAsGroup, groupStatus)
|
||||
processFlagForGroupAnnotation(flags, pflag, mutuallyExclusive, mutuallyExclusiveGroupStatus)
|
||||
})
|
||||
|
||||
// If a flag that is part of a group is present, we make all the other flags
|
||||
// of that group required so that the shell completion suggests them automatically
|
||||
for flagList, flagnameAndStatus := range groupStatus {
|
||||
for _, isSet := range flagnameAndStatus {
|
||||
if isSet {
|
||||
// One of the flags of the group is set, mark the other ones as required
|
||||
for _, fName := range strings.Split(flagList, " ") {
|
||||
_ = c.MarkFlagRequired(fName)
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// If a flag that is mutually exclusive to others is present, we hide the other
|
||||
// flags of that group so the shell completion does not suggest them
|
||||
for flagList, flagnameAndStatus := range mutuallyExclusiveGroupStatus {
|
||||
for flagName, isSet := range flagnameAndStatus {
|
||||
if isSet {
|
||||
// One of the flags of the mutually exclusive group is set, mark the other ones as hidden
|
||||
// Don't mark the flag that is already set as hidden because it may be an
|
||||
// array or slice flag and therefore must continue being suggested
|
||||
for _, fName := range strings.Split(flagList, " ") {
|
||||
if fName != flagName {
|
||||
flag := c.Flags().Lookup(fName)
|
||||
flag.Hidden = true
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue