Add Linux SVG icon generation script

AGENTS.md

@@ -13,6 +13,8 @@ This file provides guidelines for codex agents contributing to the Sortana proje
 - `prompt_templates/`: Custom/legacy templated message material kept in-repo for non-native prompt flows.
 - `build-xpi.ps1`: PowerShell script to package the extension.
 - `build-xpi.sh`: Bash script to package the extension.
+- `resources/svg2img.ps1`: PowerShell script to regenerate themed PNG icons from SVGs.
+- `resources/svg2img.sh`: Bash script to regenerate themed PNG icons from SVGs.
 
 ## Coding Style
 
@@ -80,4 +82,5 @@ time the add-on loads after an update.
 Toolbar and menu icons reside under `resources/img` and are provided in 16, 32
 and 64 pixel variants. When changing these icons, pass a dictionary mapping the
 sizes to the paths in `browserAction.setIcon` or `messageDisplayAction.setIcon`.
-Use `resources/svg2img.ps1` to regenerate PNGs from the SVG sources.
+Use `resources/svg2img.ps1` on Windows or `resources/svg2img.sh` on Linux to
+regenerate PNGs from the SVG sources.

README.md

@@ -35,6 +35,7 @@ Classification requests ask the model for structured JSON output with a required
 - **Cache management** – clear cached results from the context menu or options page.
 - **Queue & timing stats** – monitor processing time on the Maintenance tab.
 - **Packaging scripts** – `build-xpi.ps1` (PowerShell) or `build-xpi.sh` (bash) build an XPI ready for installation.
+- **Icon generation scripts** – `resources/svg2img.ps1` (PowerShell) or `resources/svg2img.sh` (bash) regenerate themed PNG icons from the SVG sources.
 - **Maintenance tab** – view rule counts, cache entries and clear cached results from the options page.
 
 ### Cache Storage
@@ -67,15 +68,16 @@ Sortana is implemented entirely with documented MailExtension/WebExtension APIs.
 
 ## Building
 
-1. Ensure PowerShell is available (for Windows) or adapt the script for other
-   environments.
+1. Ensure PowerShell is available on Windows or bash, `python3`, and Inkscape are
+   available on Linux.
 2. The Bulma stylesheet (v1.0.3) is already included as `options/bulma.css`.
 3. Run `powershell ./build-xpi.ps1` or `./build-xpi.sh` from the repository root.
    The script reads the version from `manifest.json` and creates an XPI in the
    `release` folder.
 4. Install the generated XPI in Thunderbird via the Add-ons Manager. During
    development you can also load the directory as a temporary add-on.
-5. To regenerate PNG icons from the SVG sources, run `resources/svg2img.ps1`.
+5. To regenerate PNG icons from the SVG sources, run `resources/svg2img.ps1` on
+   Windows or `./resources/svg2img.sh` on Linux.
 
 ## Usage
 

resources/svg2img.sh

@@ -0,0 +1,94 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+script_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+svg_dir="$script_dir/svg"
+out_dir="$script_dir/img"
+sizes=(16 32 64)
+themes=(light dark)
+
+get_theme_color() {
+  case "$1" in
+    light) printf '%s\n' '#000000' ;;
+    dark) printf '%s\n' '#ffffff' ;;
+    *)
+      printf 'Unknown theme: %s\n' "$1" >&2
+      exit 1
+      ;;
+  esac
+}
+
+ensure_temp_svg() {
+  local input_svg="$1"
+  local color="$2"
+  local temp_svg="$3"
+
+  python3 - "$input_svg" "$color" "$temp_svg" <<'PY'
+import pathlib
+import re
+import sys
+
+input_path = pathlib.Path(sys.argv[1])
+color = sys.argv[2]
+output_path = pathlib.Path(sys.argv[3])
+content = input_path.read_text(encoding="utf-8")
+patched, count = re.subn(r"<svg([^>]*?)>", f'<svg\\1 style="color: {color}">', content, count=1)
+if count != 1:
+    raise SystemExit("Couldn't find <svg> tag to patch.")
+output_path.write_text(patched, encoding="utf-8")
+PY
+}
+
+if [[ ! -d "$svg_dir" ]]; then
+  echo "SVG source directory not found: $svg_dir" >&2
+  exit 1
+fi
+
+mkdir -p "$out_dir"
+
+if ! command -v inkscape >/dev/null 2>&1; then
+  echo "Inkscape CLI is not installed or not in PATH. Please install it from https://inkscape.org/" >&2
+  exit 1
+fi
+
+if ! command -v python3 >/dev/null 2>&1; then
+  echo "python3 is required to patch the SVG color attribute." >&2
+  exit 1
+fi
+
+shopt -s nullglob
+svg_files=("$svg_dir"/*.svg)
+shopt -u nullglob
+
+if [[ ${#svg_files[@]} -eq 0 ]]; then
+  echo "No SVG files found in $svg_dir" >&2
+  exit 0
+fi
+
+temp_svg="$(mktemp "${TMPDIR:-/tmp}/sortana-svg2img.XXXXXX.svg")"
+cleanup() {
+  rm -f "$temp_svg"
+}
+trap cleanup EXIT
+
+for svg_path in "${svg_files[@]}"; do
+  base_name="$(basename "${svg_path%.svg}")"
+
+  for theme in "${themes[@]}"; do
+    color="$(get_theme_color "$theme")"
+    ensure_temp_svg "$svg_path" "$color" "$temp_svg"
+
+    for size in "${sizes[@]}"; do
+      out_file="$out_dir/$base_name-$theme-$size.png"
+      echo "Exporting $out_file (color $color)..."
+      inkscape "$temp_svg" \
+        --export-type=png \
+        --export-filename="$out_file" \
+        --export-width="$size" \
+        --export-height="$size" \
+        --actions=export-do
+    done
+  done
+done
+
+echo "Done generating light/dark themed PNGs."