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Expose state information via environment variables to child processes

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Close #3582
This commit is contained in:
Junegunn Choi
2024-01-16 14:17:56 +09:00
parent 1a9ea6f738
commit cdfaf761df
3 changed files with 85 additions and 10 deletions
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33
src/terminal.go
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@@ -291,6 +291,8 @@ type Terminal struct {
termSize tui.TermSize
lastAction actionType
lastFocus int32
areaLines int
areaColumns int
}
type selectedItem struct {
@@ -451,6 +453,17 @@ const (
actHideHeader
)
func (a actionType) Name() string {
name := ""
for i, r := range a.String()[3:] {
if i > 0 && r >= 'A' && r <= 'Z' {
name += "-"
}
name += string(r)
}
return strings.ToLower(name)
}
func processExecution(action actionType) bool {
switch action {
case actTransform,
@@ -825,6 +838,14 @@ func (t *Terminal) environ() []string {
if t.listenPort != nil {
env = append(env, fmt.Sprintf("FZF_PORT=%d", *t.listenPort))
}
env = append(env, "FZF_QUERY="+string(t.input))
env = append(env, "FZF_ACTION="+t.lastAction.Name())
env = append(env, "FZF_PROMPT="+string(t.promptString))
env = append(env, fmt.Sprintf("FZF_TOTAL_COUNT=%d", t.count))
env = append(env, fmt.Sprintf("FZF_MATCH_COUNT=%d", t.merger.Length()))
env = append(env, fmt.Sprintf("FZF_SELECT_COUNT=%d", len(t.selected)))
env = append(env, fmt.Sprintf("FZF_LINES=%d", t.areaLines))
env = append(env, fmt.Sprintf("FZF_COLUMNS=%d", t.areaColumns))
return env
}
@@ -1291,6 +1312,9 @@ func (t *Terminal) resizeWindows(forcePreview bool) {
width -= paddingInt[1] + paddingInt[3]
height -= paddingInt[0] + paddingInt[2]
t.areaLines = height
t.areaColumns = width
// Set up preview window
noBorder := tui.MakeBorderStyle(tui.BorderNone, t.unicode)
if forcePreview || t.needPreviewWindow() {
@@ -2543,14 +2567,7 @@ func replacePlaceholder(params replacePlaceholderParams) string {
}
}
case match == "{fzf:action}":
name := ""
for i, r := range params.lastAction.String()[3:] {
if i > 0 && r >= 'A' && r <= 'Z' {
name += "-"
}
name += string(r)
}
return strings.ToLower(name)
return params.lastAction.Name()
case match == "{fzf:prompt}":
return quoteEntry(params.prompt)
default: