ci: simplify stages, pre build images with node (#6)

Reviewed-on: https://codeberg.org/yaadata/codex.nvim/pulls/6

Author: yaadata

.forgejo/scripts/ensure-tools.sh

@@ -0,0 +1,70 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+if [ "$#" -eq 0 ]; then
+  echo "Usage: $0 [--python-venv] <command:package> [command:package ...]" >&2
+  exit 1
+fi
+
+CHECK_PYTHON_VENV=0
+CHECKS=()
+
+for arg in "$@"; do
+  case "$arg" in
+    --python-venv)
+      CHECK_PYTHON_VENV=1
+      ;;
+    *)
+      CHECKS+=("$arg")
+      ;;
+  esac
+done
+
+if [ "${#CHECKS[@]}" -eq 0 ]; then
+  echo "No command checks provided." >&2
+  exit 1
+fi
+
+MISSING_PKGS=()
+
+add_pkg() {
+  local pkg="$1"
+  for existing in "${MISSING_PKGS[@]}"; do
+    if [ "$existing" = "$pkg" ]; then
+      return
+    fi
+  done
+  MISSING_PKGS+=("$pkg")
+}
+
+for item in "${CHECKS[@]}"; do
+  if [[ "$item" != *:* ]]; then
+    echo "Invalid check '$item'. Expected format command:package." >&2
+    exit 1
+  fi
+
+  cmd="${item%%:*}"
+  pkg="${item#*:}"
+
+  if ! command -v "$cmd" >/dev/null 2>&1; then
+    echo "Missing tool: $cmd (package: $pkg)"
+    add_pkg "$pkg"
+  fi
+done
+
+if [ "$CHECK_PYTHON_VENV" -eq 1 ]; then
+  if ! command -v python3 >/dev/null 2>&1; then
+    echo "Missing tool: python3 (required for venv check)"
+    add_pkg "python3"
+    echo "Missing module: venv (package: python3-venv)"
+    add_pkg "python3-venv"
+  elif ! python3 -m venv --help >/dev/null 2>&1; then
+    echo "Missing module: venv (package: python3-venv)"
+    add_pkg "python3-venv"
+  fi
+fi
+
+if [ "${#MISSING_PKGS[@]}" -gt 0 ]; then
+  apt-get update
+  apt-get install -y "${MISSING_PKGS[@]}"
+fi

.forgejo/workflows/lint.yaml

@@ -30,15 +30,22 @@ jobs:
             command: lint
     name: ${{ matrix.name }}
     steps:
-      - name: Install Essentials
-        run: |
-          apt-get update && apt-get install -y nodejs npm wget git tar xz-utils pipx python3-venv
-
       - name: Checkout code
         uses: https://code.forgejo.org/actions/checkout@v6
         with:
           fetch-depth: 0
 
+      - name: Ensure required tools
+        shell: bash
+        run: |
+          bash ./.forgejo/scripts/ensure-tools.sh \
+            --python-venv \
+            wget:wget \
+            git:git \
+            tar:tar \
+            python3:python3 \
+            pipx:pipx
+
       - name: Install Just
         run: |
           case "$(uname -m)" in

.forgejo/workflows/release.yaml

@@ -11,15 +11,19 @@ jobs:
     if: startsWith(github.event.head_commit.message, 'RELEASE:') || startsWith(github.event.head_commit.message, 'release:')
     runs-on: ubuntu-latest
     steps:
-      - name: Install Essentials
-        run: |
-          apt-get update && apt-get install -y nodejs npm wget curl
-
       - name: Checkout code
         uses: https://code.forgejo.org/actions/checkout@v6
         with:
           fetch-depth: 0
 
+      - name: Ensure required tools
+        shell: bash
+        run: |
+          bash ./.forgejo/scripts/ensure-tools.sh \
+            git:git \
+            curl:curl \
+            python3:python3
+
       - name: Extract tag from commit message
         id: extract_tag
         run: |

.forgejo/workflows/test.yaml

@@ -18,15 +18,19 @@ jobs:
     name: Unit Tests
     runs-on: ubuntu-latest
     steps:
-      - name: Install Essentials
-        run: |
-          apt-get update && apt-get install -y nodejs npm wget git tar xz-utils
-
       - name: Checkout code
         uses: https://code.forgejo.org/actions/checkout@v6
         with:
           fetch-depth: 0
 
+      - name: Ensure required tools
+        shell: bash
+        run: |
+          bash ./.forgejo/scripts/ensure-tools.sh \
+            wget:wget \
+            git:git \
+            tar:tar
+
       - name: Install Neovim
         run: |
           case "$(uname -m)" in
@@ -78,15 +82,26 @@ jobs:
     name: Contract Tests
     runs-on: ubuntu-latest
     steps:
-      - name: Install Essentials
-        run: |
-          apt-get update && apt-get install -y nodejs npm wget git tar xz-utils
-
       - name: Checkout code
         uses: https://code.forgejo.org/actions/checkout@v6
         with:
           fetch-depth: 0
 
+      - name: Ensure required tools
+        shell: bash
+        run: |
+          bash ./.forgejo/scripts/ensure-tools.sh \
+            node:nodejs \
+            npm:npm \
+            wget:wget \
+            git:git \
+            tar:tar
+
+      - name: Verify Node.js
+        run: |
+          node --version
+          npm --version
+
       - name: Install Neovim
         run: |
           case "$(uname -m)" in