Add transform-prompt(...) action

This commit is contained in:
Junegunn Choi 2022-12-31 09:27:11 +09:00
parent e97176b1d7
commit 62c7f59b94
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GPG Key ID: 254BC280FEF9C627
5 changed files with 34 additions and 8 deletions

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@ -56,6 +56,13 @@ CHANGELOG
```sh
curl localhost:6266 -d "change-query:$(date)"
```
- Added `transform-prompt(...)` action for transforming the prompt string
using an external command
```sh
# Press space to change the prompt string using an external command
# (only the first line of the output is taken)
fzf --bind 'space:reload(ls),load:transform-prompt(printf "%s> " "$(date)")'
```
- Added `transform-query(...)` action for transforming the query string using
an external command
```sh

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@ -1034,6 +1034,7 @@ A key or an event can be bound to one or more of the following actions.
\fBtoggle-search\fR (toggle search functionality)
\fBtoggle-sort\fR
\fBtoggle+up\fR \fIbtab (shift-tab)\fR
\fBtransform-prompt(...)\fR (transform prompt string using an external command)
\fBtransform-query(...)\fR (transform query string using an external command)
\fBunbind(...)\fR (unbind bindings)
\fBunix-line-discard\fR \fIctrl-u\fR

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@ -892,7 +892,7 @@ const (
func init() {
executeRegexp = regexp.MustCompile(
`(?si)[:+](execute(?:-multi|-silent)?|reload(?:-sync)?|preview|change-query|change-prompt|change-preview-window|change-preview|(?:re|un)bind|pos|put|transform-query)`)
`(?si)[:+](execute(?:-multi|-silent)?|reload(?:-sync)?|preview|(?:change|transform)-(?:query|prompt)|change-preview-window|change-preview|(?:re|un)bind|pos|put)`)
splitRegexp = regexp.MustCompile("[,:]+")
actionNameRegexp = regexp.MustCompile("(?i)^[a-z-]+")
}
@ -1211,6 +1211,8 @@ func isExecuteAction(str string) actionType {
return actExecuteMulti
case "put":
return actPut
case "transform-prompt":
return actTransformPrompt
case "transform-query":
return actTransformQuery
}

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@ -311,6 +311,7 @@ const (
actToggleSort
actTogglePreview
actTogglePreviewWrap
actTransformPrompt
actTransformQuery
actPreview
actChangePreview
@ -2034,8 +2035,10 @@ func (t *Terminal) redraw(clear bool) {
func (t *Terminal) executeCommand(template string, forcePlus bool, background bool, captureFirstLine bool) string {
line := ""
valid, list := t.buildPlusList(template, forcePlus)
if !valid {
valid, list := t.buildPlusList(template, forcePlus, false)
// captureFirstLine is used for transform-{prompt,query} and we don't want to
// return an empty string in those cases
if !valid && !captureFirstLine {
return line
}
command := t.replacePlaceholder(template, forcePlus, string(t.input), list)
@ -2093,10 +2096,10 @@ func (t *Terminal) currentItem() *Item {
return nil
}
func (t *Terminal) buildPlusList(template string, forcePlus bool) (bool, []*Item) {
func (t *Terminal) buildPlusList(template string, forcePlus bool, forceEvaluation bool) (bool, []*Item) {
current := t.currentItem()
slot, plus, query := hasPreviewFlags(template)
if !(!slot || query || (forcePlus || plus) && len(t.selected) > 0) {
if !forceEvaluation && !(!slot || query || (forcePlus || plus) && len(t.selected) > 0) {
return current != nil, []*Item{current, current}
}
@ -2421,7 +2424,7 @@ func (t *Terminal) Loop() {
refreshPreview := func(command string) {
if len(command) > 0 && t.isPreviewEnabled() {
_, list := t.buildPlusList(command, false)
_, list := t.buildPlusList(command, false, false)
t.cancelPreview()
t.previewBox.Set(reqPreviewEnqueue, previewRequest{command, t.pwindow, t.evaluateScrollOffset(), list})
}
@ -2649,7 +2652,7 @@ func (t *Terminal) Loop() {
if t.hasPreviewer() {
togglePreview(!t.previewer.enabled)
if t.previewer.enabled {
valid, list := t.buildPlusList(t.previewOpts.command, false)
valid, list := t.buildPlusList(t.previewOpts.command, false, false)
if valid {
t.cancelPreview()
t.previewBox.Set(reqPreviewEnqueue,
@ -2664,6 +2667,10 @@ func (t *Terminal) Loop() {
t.previewed.version = 0
req(reqPreviewRefresh)
}
case actTransformPrompt:
prompt := t.executeCommand(a.a, false, true, true)
t.prompt, t.promptLen = t.parsePrompt(prompt)
req(reqPrompt)
case actTransformQuery:
query := t.executeCommand(a.a, false, true, true)
t.input = []rune(query)
@ -3036,7 +3043,7 @@ func (t *Terminal) Loop() {
case actReload, actReloadSync:
t.failed = nil
valid, list := t.buildPlusList(a.a, false)
valid, list := t.buildPlusList(a.a, false, false)
if !valid {
// We run the command even when there's no match
// 1. If the template doesn't have any slots

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@ -1806,6 +1806,15 @@ class TestGoFZF < TestBase
tmux.until { |lines| assert_equal '> RAB', lines[-1] }
end
def test_transform_prompt
tmux.send_keys %{#{FZF} --bind 'ctrl-r:transform-query(rev <<< {q}),ctrl-u:transform-query: tr "[:lower:]" "[:upper:]" <<< {q}' --query bar}, :Enter
tmux.until { |lines| assert_equal '> bar', lines[-1] }
tmux.send_keys 'C-r'
tmux.until { |lines| assert_equal '> rab', lines[-1] }
tmux.send_keys 'C-u'
tmux.until { |lines| assert_equal '> RAB', lines[-1] }
end
def test_clear_selection
tmux.send_keys %(seq 100 | #{FZF} --multi --bind space:clear-selection), :Enter
tmux.until { |lines| assert_equal 100, lines.match_count }