From 8c3af63e1206635b2e652fd033eb591cc17fa819 Mon Sep 17 00:00:00 2001
From: "Gustavo \"Guz\" L de Mello" <contact@guz.one>
Date: Fri, 14 Mar 2025 22:13:03 -0300
Subject: [PATCH] feat(guz,apps,packages): untrack, small utility to remove
 metadata from files

---
 flake.nix                    |  2 ++
 home/guz/apps.nix            |  2 ++
 packages/untrack/default.nix |  9 +++++++++
 packages/untrack/untrack.sh  | 25 +++++++++++++++++++++++++
 4 files changed, 38 insertions(+)
 create mode 100644 packages/untrack/default.nix
 create mode 100644 packages/untrack/untrack.sh

diff --git a/flake.nix b/flake.nix
index 13781ef..906948e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -137,6 +137,8 @@
       ...
     }: {
       davincify = pkgs.callPackage ./packages/davincify {};
+      untrack = pkgs.callPackage ./packages/untrack {};
+
       neovim = inputs.neovim.packages.${pkgs.system}.default;
 
       devkit =
diff --git a/home/guz/apps.nix b/home/guz/apps.nix
index 2fa33e5..05b0f2e 100644
--- a/home/guz/apps.nix
+++ b/home/guz/apps.nix
@@ -40,11 +40,13 @@
 
       # Media
       ffmpeg
+      exiftool
       krita
       davinci-resolve
     ])
     # Utils
     ++ (with self.packages.${pkgs.system}; [
       davincify
+      untrack
     ]);
 }
diff --git a/packages/untrack/default.nix b/packages/untrack/default.nix
new file mode 100644
index 0000000..da2f654
--- /dev/null
+++ b/packages/untrack/default.nix
@@ -0,0 +1,9 @@
+{
+  pkgs,
+  lib,
+  ...
+}:
+pkgs.writeShellScriptBin "untrack" ''
+  function exitftool() { ${lib.getExe pkgs.exiftool} "$@"; }
+  ${builtins.readFile ./untrack.sh}
+''
diff --git a/packages/untrack/untrack.sh b/packages/untrack/untrack.sh
new file mode 100644
index 0000000..3b0867d
--- /dev/null
+++ b/packages/untrack/untrack.sh
@@ -0,0 +1,25 @@
+function rand_hex() {
+	local length="$1"
+
+	cat /dev/urandom | tr -cd 'a-f0-9' | head -c "$length"
+}
+
+# TODO: Support for directories
+function untrack() {
+	local file="$1"
+
+	local filename="$(basename "$file")"
+	local ext="${filename##*.}"
+	local directory="$(dirname "$file")"
+
+	local output_file="$directory/$(rand_hex 6).$ext"
+
+	cp "$file" "$output_file"
+
+	exiftool \
+		-overwrite_original \
+		-all= \
+		"$output_file"
+}
+
+untrack "$1"