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diff kitten: Automatically use dark/light color scheme based on the color scheme of the parent terminal

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Fixes #8170
This commit is contained in:
Kovid Goyal
2025-01-04 12:57:33 +05:30
parent 134271be93
commit e34a899ea6
6 changed files with 208 additions and 128 deletions
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50
kittens/diff/highlight.go
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@@ -158,6 +158,30 @@ func ansi_formatter(w io.Writer, style *chroma.Style, it chroma.Iterator) (err e
return nil
}
func resolved_chroma_style() *chroma.Style {
name := utils.IfElse(use_dark_colors, conf.Dark_pygments_style, conf.Pygments_style)
var style *chroma.Style
if name == "default" {
style = DefaultStyle()
} else {
style = styles.Get(name)
}
if style == nil {
if resolved_colors.Background.IsDark() && !resolved_colors.Foreground.IsDark() {
style = styles.Get("monokai")
if style == nil {
style = styles.Get("github-dark")
}
} else {
style = DefaultStyle()
}
if style == nil {
style = styles.Fallback
}
}
return style
}
func highlight_file(path string) (highlighted string, err error) {
filename_for_detection := filepath.Base(path)
ext := filepath.Ext(filename_for_detection)
@@ -174,34 +198,12 @@ func highlight_file(path string) (highlighted string, err error) {
}
lexer := lexers.Match(filename_for_detection)
if lexer == nil {
if err == nil {
lexer = lexers.Analyse(text)
}
lexer = lexers.Analyse(text)
}
if lexer == nil {
return "", fmt.Errorf("Cannot highlight %#v: %w", path, ErrNoLexer)
}
lexer = chroma.Coalesce(lexer)
name := conf.Pygments_style
var style *chroma.Style
if name == "default" {
style = DefaultStyle()
} else {
style = styles.Get(name)
}
if style == nil {
if conf.Background.IsDark() && !conf.Foreground.IsDark() {
style = styles.Get("monokai")
if style == nil {
style = styles.Get("github-dark")
}
} else {
style = DefaultStyle()
}
if style == nil {
style = styles.Fallback
}
}
iterator, err := lexer.Tokenise(nil, text)
if err != nil {
return "", err
@@ -209,7 +211,7 @@ func highlight_file(path string) (highlighted string, err error) {
formatter := chroma.FormatterFunc(ansi_formatter)
w := strings.Builder{}
w.Grow(len(text) * 2)
err = formatter.Format(&w, style, iterator)
err = formatter.Format(&w, resolved_chroma_style(), iterator)
// os.WriteFile(filepath.Base(path+".highlighted"), []byte(w.String()), 0o600)
return w.String(), err
}