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Add animated Claude-style starburst icon to blink progress bar #193

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Merged
TomasVotruba merged 3 commits into from
Oct 10, 2026
Merged

Add animated Claude-style starburst icon to blink progress bar #193

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f5d093b
Add animated Claude-style starburst icon to blink progress bar
TomasVotruba Oct 9, 2026
f15eee3
Show only the animated icon in blink progress, drop bar and percent
TomasVotruba Oct 9, 2026
3487dc7
Swap progress icon frames to a pulsing bloom
TomasVotruba Oct 10, 2026
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21 changes: 8 additions & 13 deletions blink/internal/reporter/progress.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,9 +15,13 @@ type Progress struct {
active bool
total int
cur int
frame int
mu sync.Mutex
}

// iconFrames is a pulsing bloom that grows from a dot to a star and back, advanced one step per render.
var iconFrames = []string{"·", "∘", "○", "◯", "✦", "✧", "✦", "◯", "○", "∘"}

// NewProgress returns a progress bar; it only draws when w is a terminal.
func NewProgress(w *os.File) *Progress {
p := &Progress{w: w, width: 28}
Expand Down Expand Up @@ -64,23 +68,14 @@ func (p *Progress) Finish() {
if p == nil || !p.active {
return
}
_, _ = fmt.Fprintf(p.w, "\r%s\r", strings.Repeat(" ", p.width+20))
_, _ = fmt.Fprintf(p.w, "\r%s\r", strings.Repeat(" ", p.width+24))
}

func (p *Progress) render() {
if p.total <= 0 {
return
}
pct := p.cur * 100 / p.total
filled := p.cur * p.width / p.total
var bar string
switch {
case filled >= p.width:
bar = strings.Repeat("=", p.width)
case filled == 0:
bar = ">" + strings.Repeat(" ", p.width-1)
default:
bar = strings.Repeat("=", filled-1) + ">" + strings.Repeat(" ", p.width-filled)
}
_, _ = fmt.Fprintf(p.w, "\r %d/%d [%s] %3d%%", p.cur, p.total, bar, pct)
icon := iconFrames[p.frame%len(iconFrames)]
p.frame++
_, _ = fmt.Fprintf(p.w, "\r %s", icon)
}
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