From 22cedc6712d690664ff5ead10309f0aa166f97b9 Mon Sep 17 00:00:00 2001
From: Timo Bingmann <tbgit@panthema.net>
Date: Mon, 8 Dec 2025 23:47:02 -0800
Subject: [PATCH] tb-scripts: add ,optipng and ,zipdir utility scripts
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Add two new shell utility scripts to the custom script packages:

,optipng - Parallel PNG optimization wrapper
- Detects available CPU cores and runs optipng in parallel using xargs
- Accepts optional file arguments, defaults to all *.png in current dir
- Uses maximum compression level (-o7) for best results
- Added to tb-dev-scripts package with optipng as runtime dependency

,zipdir - Quick directory archiving helper
- Creates a zip archive of the current directory
- Names the archive after the directory and places it in parent folder
- Uses maximum compression (-9) with extra attributes excluded (-X)
- Added to tb-scripts package with zip as runtime dependency

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 pkgs/tb-dev-scripts/default.nix |  6 ++++++
 pkgs/tb-dev-scripts/optipng     | 13 +++++++++++++
 pkgs/tb-scripts/default.nix     |  5 +++++
 pkgs/tb-scripts/zipdir          |  3 +++
 4 files changed, 27 insertions(+)
 create mode 100755 pkgs/tb-dev-scripts/optipng
 create mode 100755 pkgs/tb-scripts/zipdir

diff --git a/pkgs/tb-dev-scripts/default.nix b/pkgs/tb-dev-scripts/default.nix
index 0d5ebdf..b0eeb3b 100644
--- a/pkgs/tb-dev-scripts/default.nix
+++ b/pkgs/tb-dev-scripts/default.nix
@@ -20,5 +20,11 @@ pkgs.symlinkJoin {
         "--prefix PATH : ${lib.makeBinPath [ pkgs.ffmpeg ]}"
       ];
     } (builtins.readFile ./video_loop_extractor.py))
+
+    (pkgs.writeShellApplication {
+      name = ",optipng";
+      runtimeInputs = [ pkgs.optipng ];
+      text = builtins.readFile ./optipng;
+    })
   ];
 }
diff --git a/pkgs/tb-dev-scripts/optipng b/pkgs/tb-dev-scripts/optipng
new file mode 100755
index 0000000..321e79b
--- /dev/null
+++ b/pkgs/tb-dev-scripts/optipng
@@ -0,0 +1,13 @@
+#!/bin/sh -x
+
+PROCS=$(grep -c ^processor /proc/cpuinfo)
+
+if [ -z "$@" ]; then
+    (for f in *.png; do
+         echo "$f";
+     done) | xargs -P$PROCS -d'\n' -n1 optipng -o7
+else
+    (for f in "$@"; do
+         echo "$f";
+     done) | xargs -P$PROCS -d'\n' -n1 optipng -o7
+fi
diff --git a/pkgs/tb-scripts/default.nix b/pkgs/tb-scripts/default.nix
index d13b71e..a6efd3c 100644
--- a/pkgs/tb-scripts/default.nix
+++ b/pkgs/tb-scripts/default.nix
@@ -15,5 +15,10 @@ pkgs.symlinkJoin {
     (pkgs.writers.writePython3Bin ",rename_lower" {
       libraries = [ ];
     } (builtins.readFile ./rename_lower.py))
+    (pkgs.writeShellApplication {
+      name = ",zipdir";
+      runtimeInputs = [ pkgs.zip ];
+      text = builtins.readFile ./zipdir;
+    })
   ];
 }
diff --git a/pkgs/tb-scripts/zipdir b/pkgs/tb-scripts/zipdir
new file mode 100755
index 0000000..cc2c134
--- /dev/null
+++ b/pkgs/tb-scripts/zipdir
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+zip -9rX "../$(basename "$PWD").zip" .