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Add 'transform' action to conditionally perform a series of actions

Browse Source 
'transform' action runs an external command that prints a series of
actions to perform.

  # Disallow selecting an empty line
  echo -e "1. Hello\n2. Goodbye\n\n3. Exit" |
    fzf --reverse --header 'Select one' \
        --bind 'enter:transform:[[ -n {} ]] && echo accept || echo "change-header:Invalid selection"'

  # Move cursor past the empty line
  echo -e "1. Hello\n2. Goodbye\n\n3. Exit" |
    fzf --reverse --header 'Select one' \
        --bind 'enter:transform:[[ -n {} ]] && echo accept || echo "change-header:Invalid selection"' \
        --bind 'focus:transform:[[ -n {} ]] && exit; [[ {fzf:action} =~ up$ ]] && echo up || echo down'

Close #3368
Close #2980
This commit is contained in:
Junegunn Choi
2023-12-25 23:43:46 +09:00
parent 41d4d70b98
commit 1707b8cdba
10 changed files with 255 additions and 52 deletions
Download Patch File Download Diff File Expand all files Collapse all files

57
src/terminal_test.go
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@@ -52,90 +52,90 @@ func TestReplacePlaceholder(t *testing.T) {
*/
// {}, preserve ansi
result = replacePlaceholder("echo {}", false, Delimiter{}, printsep, false, "query", items1)
result = replacePlaceholder("echo {}", false, Delimiter{}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} foo{{.I}}bar \x1b[31mbaz\x1b[m{{.O}}")
// {}, strip ansi
result = replacePlaceholder("echo {}", true, Delimiter{}, printsep, false, "query", items1)
result = replacePlaceholder("echo {}", true, Delimiter{}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} foo{{.I}}bar baz{{.O}}")
// {}, with multiple items
result = replacePlaceholder("echo {}", true, Delimiter{}, printsep, false, "query", items2)
result = replacePlaceholder("echo {}", true, Delimiter{}, printsep, false, "query", items2, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar baz{{.O}}")
// {..}, strip leading whitespaces, preserve ansi
result = replacePlaceholder("echo {..}", false, Delimiter{}, printsep, false, "query", items1)
result = replacePlaceholder("echo {..}", false, Delimiter{}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar \x1b[31mbaz\x1b[m{{.O}}")
// {..}, strip leading whitespaces, strip ansi
result = replacePlaceholder("echo {..}", true, Delimiter{}, printsep, false, "query", items1)
result = replacePlaceholder("echo {..}", true, Delimiter{}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar baz{{.O}}")
// {q}
result = replacePlaceholder("echo {} {q}", true, Delimiter{}, printsep, false, "query", items1)
result = replacePlaceholder("echo {} {q}", true, Delimiter{}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} foo{{.I}}bar baz{{.O}} {{.O}}query{{.O}}")
// {q}, multiple items
result = replacePlaceholder("echo {+}{q}{+}", true, Delimiter{}, printsep, false, "query 'string'", items2)
result = replacePlaceholder("echo {+}{q}{+}", true, Delimiter{}, printsep, false, "query 'string'", items2, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar baz{{.O}} {{.O}}FOO{{.I}}BAR BAZ{{.O}}{{.O}}query {{.I}}string{{.I}}{{.O}}{{.O}}foo{{.I}}bar baz{{.O}} {{.O}}FOO{{.I}}BAR BAZ{{.O}}")
result = replacePlaceholder("echo {}{q}{}", true, Delimiter{}, printsep, false, "query 'string'", items2)
result = replacePlaceholder("echo {}{q}{}", true, Delimiter{}, printsep, false, "query 'string'", items2, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar baz{{.O}}{{.O}}query {{.I}}string{{.I}}{{.O}}{{.O}}foo{{.I}}bar baz{{.O}}")
result = replacePlaceholder("echo {1}/{2}/{2,1}/{-1}/{-2}/{}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, false, "query", items1)
result = replacePlaceholder("echo {1}/{2}/{2,1}/{-1}/{-2}/{}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar{{.O}}/{{.O}}baz{{.O}}/{{.O}}bazfoo{{.I}}bar{{.O}}/{{.O}}baz{{.O}}/{{.O}}foo{{.I}}bar{{.O}}/{{.O}} foo{{.I}}bar baz{{.O}}/{{.O}}foo{{.I}}bar baz{{.O}}/{n.t}/{}/{1}/{q}/{{.O}}{{.O}}")
result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, false, "query", items2)
result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, false, "query", items2, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar{{.O}}/{{.O}}baz{{.O}}/{{.O}}baz{{.O}}/{{.O}}foo{{.I}}bar{{.O}}/{{.O}}foo{{.I}}bar baz{{.O}}/{n.t}/{}/{1}/{q}/{{.O}}{{.O}}")
result = replacePlaceholder("echo {+1}/{+2}/{+-1}/{+-2}/{+..}/{n.t}/\\{}/\\{1}/\\{q}/{+3}", true, Delimiter{}, printsep, false, "query", items2)
result = replacePlaceholder("echo {+1}/{+2}/{+-1}/{+-2}/{+..}/{n.t}/\\{}/\\{1}/\\{q}/{+3}", true, Delimiter{}, printsep, false, "query", items2, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar{{.O}} {{.O}}FOO{{.I}}BAR{{.O}}/{{.O}}baz{{.O}} {{.O}}BAZ{{.O}}/{{.O}}baz{{.O}} {{.O}}BAZ{{.O}}/{{.O}}foo{{.I}}bar{{.O}} {{.O}}FOO{{.I}}BAR{{.O}}/{{.O}}foo{{.I}}bar baz{{.O}} {{.O}}FOO{{.I}}BAR BAZ{{.O}}/{n.t}/{}/{1}/{q}/{{.O}}{{.O}} {{.O}}{{.O}}")
// forcePlus
result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, true, "query", items2)
result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, true, "query", items2, actIgnore)
checkFormat("echo {{.O}}foo{{.I}}bar{{.O}} {{.O}}FOO{{.I}}BAR{{.O}}/{{.O}}baz{{.O}} {{.O}}BAZ{{.O}}/{{.O}}baz{{.O}} {{.O}}BAZ{{.O}}/{{.O}}foo{{.I}}bar{{.O}} {{.O}}FOO{{.I}}BAR{{.O}}/{{.O}}foo{{.I}}bar baz{{.O}} {{.O}}FOO{{.I}}BAR BAZ{{.O}}/{n.t}/{}/{1}/{q}/{{.O}}{{.O}} {{.O}}{{.O}}")
// Whitespace preserving flag with "'" delimiter
result = replacePlaceholder("echo {s1}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
result = replacePlaceholder("echo {s1}", true, Delimiter{str: &delim}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} foo{{.O}}")
result = replacePlaceholder("echo {s2}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
result = replacePlaceholder("echo {s2}", true, Delimiter{str: &delim}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}}bar baz{{.O}}")
result = replacePlaceholder("echo {s}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
result = replacePlaceholder("echo {s}", true, Delimiter{str: &delim}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} foo{{.I}}bar baz{{.O}}")
result = replacePlaceholder("echo {s..}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
result = replacePlaceholder("echo {s..}", true, Delimiter{str: &delim}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} foo{{.I}}bar baz{{.O}}")
// Whitespace preserving flag with regex delimiter
regex = regexp.MustCompile(`\w+`)
result = replacePlaceholder("echo {s1}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
result = replacePlaceholder("echo {s1}", true, Delimiter{regex: regex}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} {{.O}}")
result = replacePlaceholder("echo {s2}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
result = replacePlaceholder("echo {s2}", true, Delimiter{regex: regex}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}}{{.I}}{{.O}}")
result = replacePlaceholder("echo {s3}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
result = replacePlaceholder("echo {s3}", true, Delimiter{regex: regex}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} {{.O}}")
// No match
result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, printsep, false, "query", []*Item{nil, nil})
result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, printsep, false, "query", []*Item{nil, nil}, actIgnore)
check("echo /")
// No match, but with selections
result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, printsep, false, "query", []*Item{nil, item1})
result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, printsep, false, "query", []*Item{nil, item1}, actIgnore)
checkFormat("echo /{{.O}} foo{{.I}}bar baz{{.O}}")
// String delimiter
result = replacePlaceholder("echo {}/{1}/{2}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
result = replacePlaceholder("echo {}/{1}/{2}", true, Delimiter{str: &delim}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} foo{{.I}}bar baz{{.O}}/{{.O}}foo{{.O}}/{{.O}}bar baz{{.O}}")
// Regex delimiter
regex = regexp.MustCompile("[oa]+")
// foo'bar baz
result = replacePlaceholder("echo {}/{1}/{3}/{2..3}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
result = replacePlaceholder("echo {}/{1}/{3}/{2..3}", true, Delimiter{regex: regex}, printsep, false, "query", items1, actIgnore)
checkFormat("echo {{.O}} foo{{.I}}bar baz{{.O}}/{{.O}}f{{.O}}/{{.O}}r b{{.O}}/{{.O}}{{.I}}bar b{{.O}}")
/*
@@ -198,18 +198,23 @@ func TestReplacePlaceholder(t *testing.T) {
// query flag is not removed after parsing, so it gets doubled
// while the double q is invalid, it is useful here for testing purposes
templateToOutput[`{q}`] = "{{.O}}" + query + "{{.O}}"
templateToOutput[`{fzf:query}`] = "{{.O}}" + query + "{{.O}}"
templateToOutput[`{fzf:action}`] = "backward-delete-char-eof"
// IV. escaping placeholder
templateToOutput[`\{}`] = `{}`
templateToOutput[`\{q}`] = `{q}`
templateToOutput[`\{fzf:query}`] = `{fzf:query}`
templateToOutput[`\{fzf:action}`] = `{fzf:action}`
templateToOutput[`\{++}`] = `{++}`
templateToOutput[`{++}`] = templateToOutput[`{+}`]
for giveTemplate, wantOutput := range templateToOutput {
result = replacePlaceholder(giveTemplate, stripAnsi, Delimiter{}, printsep, forcePlus, query, items3)
result = replacePlaceholder(giveTemplate, stripAnsi, Delimiter{}, printsep, forcePlus, query, items3, actBackwardDeleteCharEof)
checkFormat(wantOutput)
}
for giveTemplate, wantOutput := range templateToFile {
path := replacePlaceholder(giveTemplate, stripAnsi, Delimiter{}, printsep, forcePlus, query, items3)
path := replacePlaceholder(giveTemplate, stripAnsi, Delimiter{}, printsep, forcePlus, query, items3, actIgnore)
data, err := readFile(path)
if err != nil {
@@ -566,7 +571,7 @@ func testCommands(t *testing.T, tests []testCase) {
gotOutput := replacePlaceholder(
test.give.template, stripAnsi, delimiter, printsep, forcePlus,
test.give.query,
test.give.allItems)
test.give.allItems, actIgnore)
switch {
case test.want.output != "":
if gotOutput != test.want.output {