Claude Code status line editor

mkdir -p ~/.claude
[ -f ~/.claude/statusline.sh ] && cp ~/.claude/statusline.sh ~/.claude/statusline.sh.bak
cat > ~/.claude/statusline.sh <<'CCPP_STATUSLINE'
#!/usr/bin/env bash
# Claude Code status line from https://ccpp.dev/tools/claude-code-statusline-editor
# Claude Code pipes the session JSON to stdin (https://code.claude.com/docs/en/statusline). Needs jq.
# ccpp-layout: {"version":1,"lines":[{"separator":" ","separatorStyle":{"fg":"bright-black","bg":"default","bold":false,"dim":false,"italic":false,"underline":false},"segments":[{"id":"model","widget":"model","variant":"","text":"","prefix":"[","suffix":"]","width":10,"thresholds":{"enabled":false,"warn":70,"critical":90},"link":false,"style":{"fg":"cyan","bg":"default","bold":false,"dim":false,"italic":false,"underline":false}},{"id":"dir","widget":"directory","variant":"","text":"","prefix":"📁 ","suffix":"","width":10,"thresholds":{"enabled":false,"warn":70,"critical":90},"link":false,"style":{"fg":"default","bg":"default","bold":false,"dim":false,"italic":false,"underline":false}},{"id":"branch","widget":"git-branch","variant":"","text":"","prefix":"| 🌿 ","suffix":"","width":10,"thresholds":{"enabled":false,"warn":70,"critical":90},"link":false,"style":{"fg":"default","bg":"default","bold":false,"dim":false,"italic":false,"underline":false}},{"id":"changes","widget":"git-changes","variant":"","text":"","prefix":"","suffix":"","width":10,"thresholds":{"enabled":false,"warn":70,"critical":90},"link":false,"style":{"fg":"yellow","bg":"default","bold":false,"dim":false,"italic":false,"underline":false}}]},{"separator":" | ","separatorStyle":{"fg":"bright-black","bg":"default","bold":false,"dim":false,"italic":false,"underline":false},"segments":[{"id":"bar","widget":"bar","variant":"","text":"█░","prefix":"","suffix":"","width":10,"thresholds":{"enabled":true,"warn":70,"critical":90},"link":false,"style":{"fg":"default","bg":"default","bold":false,"dim":false,"italic":false,"underline":false}},{"id":"ctx","widget":"context-percent","variant":"","text":"","prefix":"","suffix":"","width":10,"thresholds":{"enabled":true,"warn":70,"critical":90},"link":false,"style":{"fg":"default","bg":"default","bold":false,"dim":false,"italic":false,"underline":false}},{"id":"cost","widget":"cost","variant":"","text":"","prefix":"","suffix":"","width":10,"thresholds":{"enabled":false,"warn":70,"critical":90},"link":false,"style":{"fg":"yellow","bg":"default","bold":false,"dim":false,"italic":false,"underline":false}},{"id":"time","widget":"duration","variant":"","text":"","prefix":"⏱ ","suffix":"","width":10,"thresholds":{"enabled":false,"warn":70,"critical":90},"link":false,"style":{"fg":"default","bg":"default","bold":false,"dim":false,"italic":false,"underline":false}}]}],"padding":0,"refreshInterval":null,"hideVimModeIndicator":false}

input=$(cat)
command -v jq >/dev/null 2>&1 || { echo "statusline: jq is not installed (https://jqlang.org)"; exit 0; }

dir=$(printf '%s' "$input" | jq -r '.workspace.current_dir // .cwd // empty')
branch="" staged=0 modified=0
if [ -n "$dir" ] && git -C "$dir" rev-parse --git-dir >/dev/null 2>&1; then
  branch=$(git -C "$dir" branch --show-current 2>/dev/null)
  [ -n "$branch" ] || branch=$(git -C "$dir" rev-parse --short HEAD 2>/dev/null)
  staged=$(git --no-optional-locks -C "$dir" diff --cached --numstat 2>/dev/null | wc -l | tr -d ' ')
  modified=$(git --no-optional-locks -C "$dir" diff --numstat 2>/dev/null | wc -l | tr -d ' ')
fi

program=$(cat <<'CCPP_JQ'
def num: if type == "number" then . else null end;
def str: if type == "string" and . != "" then . else null end;
def rep($n): if $n <= 0 then "" else . * $n end;
def pct: if . == null then null else "\(floor)%" end;
def usd: if . == null then null else (. * 100 | round) as $c | "$\($c / 100 | floor)." + ("0\($c % 100)" | .[-2:]) end;
def tok: if . == null then null elif . >= 1000000 then "\(. / 100000 | floor | . / 10)M" elif . >= 1000 then "\(. / 100 | floor | . / 10)k" else "\(floor)" end;
def dur: if . == null then null else floor as $s | if $s >= 86400 then "\($s / 86400 | floor)d \($s % 86400 / 3600 | floor)h" elif $s >= 3600 then "\($s / 3600 | floor)h \($s % 3600 / 60 | floor)m" elif $s >= 60 then "\($s / 60 | floor)m \($s % 60)s" else "\($s)s" end end;
def left: if . == null then null else (. - now) as $d | if $d <= 0 then null else $d | dur end end;
def bar($w; $full; $empty): if . == null then null else ([0, ([$w, (. * $w / 100 | floor)] | min)] | max) as $f | ($full | rep($f)) + ($empty | rep($w - $f)) end;
def base: if . == null then null else ([splits("[/\\\\]")] | map(select(. != "")) | last) // "/" end;
def tilde: if . == null then null else ($ENV.HOME // "") as $h | if $h != "" and (. == $h or startswith($h + "/")) then "~" + .[($h | length):] else . end end;
def scalar: if type == "string" then str elif type == "number" or type == "boolean" then tostring elif . == null then null else tojson end;
def paint($open): if $open == "" then . else $open + . + "\u001b[0m" end;
def link($url): if $url == null or $url == "" then . else "\u001b]8;;" + $url + "\u0007" + . + "\u001b]8;;\u0007" end;

([
  (try ((.model.display_name | str) as $t | "\u001b[36m" as $open | if $t == null or $t == "" then null else ("[" + ($t | gsub("[[:cntrl:]]"; " ")) + "]") | paint($open) end) catch null),
  (try (((.workspace.current_dir | str) // (.cwd | str) | base) as $t | "" as $open | if $t == null or $t == "" then null else ("📁 " + ($t | gsub("[[:cntrl:]]"; " ")) + "") | paint($open) end) catch null),
  (try (($git_branch | str) as $t | "" as $open | if $t == null or $t == "" then null else ("| 🌿 " + ($t | gsub("[[:cntrl:]]"; " ")) + "") | paint($open) end) catch null),
  (try ((if $git_staged + $git_modified == 0 then null else [if $git_staged > 0 then "+\($git_staged)" else empty end, if $git_modified > 0 then "~\($git_modified)" else empty end] | join(" ") end) as $t | "\u001b[33m" as $open | if $t == null or $t == "" then null else ("" + ($t | gsub("[[:cntrl:]]"; " ")) + "") | paint($open) end) catch null)
] | map(select(. != null)) | join("\u001b[90m \u001b[0m") | select(length > 0)),
([
  (try ((.context_window.used_percentage | num | bar(10; "█"; "░")) as $t | ((.context_window.used_percentage | num) as $p | if $p == null then "" elif $p >= 90 then "\u001b[31m" elif $p >= 70 then "\u001b[33m" else "\u001b[32m" end) as $open | if $t == null or $t == "" then null else ("" + ($t | gsub("[[:cntrl:]]"; " ")) + "") | paint($open) end) catch null),
  (try ((.context_window.used_percentage | num | pct) as $t | ((.context_window.used_percentage | num) as $p | if $p == null then "" elif $p >= 90 then "\u001b[31m" elif $p >= 70 then "\u001b[33m" else "\u001b[32m" end) as $open | if $t == null or $t == "" then null else ("" + ($t | gsub("[[:cntrl:]]"; " ")) + "") | paint($open) end) catch null),
  (try ((.cost.total_cost_usd | num | usd) as $t | "\u001b[33m" as $open | if $t == null or $t == "" then null else ("" + ($t | gsub("[[:cntrl:]]"; " ")) + "") | paint($open) end) catch null),
  (try ((.cost.total_duration_ms | num | if . == null then null else . / 1000 | dur end) as $t | "" as $open | if $t == null or $t == "" then null else ("⏱ " + ($t | gsub("[[:cntrl:]]"; " ")) + "") | paint($open) end) catch null)
] | map(select(. != null)) | join("\u001b[90m | \u001b[0m") | select(length > 0))
CCPP_JQ
)
printf '%s' "$input" | jq -r --arg git_branch "$branch" --argjson git_staged "${staged:-0}" --argjson git_modified "${modified:-0}" "$program"
CCPP_STATUSLINE
chmod +x ~/.claude/statusline.sh
settings=~/.claude/settings.json
if [ -s "$settings" ]; then cp "$settings" "$settings.bak"; else echo '{}' > "$settings"; fi
jq --argjson statusLine '{"type":"command","command":"~/.claude/statusline.sh"}' '.statusLine = $statusLine' "$settings" > "$settings.tmp" && mv "$settings.tmp" "$settings"