build: install pinned blueprint-compiler

Author: OneNoted

.github/workflows/release-assets.yml

@@ -31,7 +31,14 @@ jobs:
       - name: Install Linux bundle tools
         run: |
           sudo apt-get update
-          sudo apt-get install -y blueprint-compiler xvfb libgtk-4-dev libadwaita-1-dev
+          sudo apt-get install -y meson ninja-build python3-gi xvfb libgtk-4-dev libadwaita-1-dev
+
+      - name: Install pinned blueprint-compiler
+        run: |
+          prefix="${RUNNER_TEMP}/taskers-blueprint-compiler"
+          bash scripts/install_blueprint_compiler.sh "$prefix"
+          echo "${prefix}/bin" >> "$GITHUB_PATH"
+          "${prefix}/bin/blueprint-compiler" --version
 
       - name: Build Linux bundle
         run: bash scripts/build_linux_bundle.sh

scripts/install_blueprint_compiler.sh

@@ -0,0 +1,84 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+version="0.16.0"
+sha256="01feb8263fe7a450b0a9fed0fd54cf88947aaf00f86cc7da345f8b39a0e7bd30"
+archive_url="https://gitlab.gnome.org/GNOME/blueprint-compiler/-/archive/v${version}/blueprint-compiler-v${version}.tar.gz"
+prefix="${1:-${RUNNER_TEMP:-/tmp}/taskers-blueprint-compiler}"
+
+require_command() {
+  local command_name="$1"
+  if ! command -v "$command_name" >/dev/null 2>&1; then
+    printf 'missing required command: %s\n' "$command_name" >&2
+    exit 1
+  fi
+}
+
+version_at_least() {
+  python3 - "$1" "$2" <<'PY'
+import sys
+
+def normalize(value: str) -> tuple[int, ...]:
+    return tuple(int(part) for part in value.strip().split("."))
+
+current = normalize(sys.argv[1])
+minimum = normalize(sys.argv[2])
+sys.exit(0 if current >= minimum else 1)
+PY
+}
+
+installed_version() {
+  local binary_path="$1"
+  "$binary_path" --version | awk '{print $NF}'
+}
+
+require_command python3
+require_command tar
+require_command meson
+require_command ninja
+
+existing_binary="$prefix/bin/blueprint-compiler"
+if [[ -x "$existing_binary" ]]; then
+  current_version="$(installed_version "$existing_binary")"
+  if version_at_least "$current_version" "$version"; then
+    printf 'blueprint-compiler %s already installed at %s\n' "$current_version" "$prefix"
+    exit 0
+  fi
+fi
+
+work_dir="$(mktemp -d "${TMPDIR:-/tmp}/taskers-blueprint.XXXXXX")"
+archive_path="$work_dir/blueprint-compiler-v${version}.tar.gz"
+source_dir="$work_dir/blueprint-compiler-v${version}"
+build_dir="$work_dir/build"
+
+cleanup() {
+  rm -rf "$work_dir"
+}
+trap cleanup EXIT
+
+python3 - "$archive_url" "$archive_path" "$sha256" <<'PY'
+import hashlib
+import pathlib
+import sys
+import urllib.request
+
+url, dest, expected = sys.argv[1:4]
+data = urllib.request.urlopen(url, timeout=60).read()
+digest = hashlib.sha256(data).hexdigest()
+if digest != expected:
+    raise SystemExit(f"blueprint-compiler sha256 mismatch: expected {expected}, got {digest}")
+pathlib.Path(dest).write_bytes(data)
+PY
+
+tar -xf "$archive_path" -C "$work_dir"
+rm -rf "$prefix"
+meson setup "$build_dir" "$source_dir" --prefix "$prefix"
+meson install -C "$build_dir"
+
+current_version="$(installed_version "$prefix/bin/blueprint-compiler")"
+if ! version_at_least "$current_version" "$version"; then
+  printf 'expected blueprint-compiler >= %s, got %s\n' "$version" "$current_version" >&2
+  exit 1
+fi
+
+printf '%s\n' "$prefix"