feat: Adds script to check for changes (#467)

* feat: Adds script to check for changes

Adds the first version of find-changes.sh, which detects changed or added files in subfolders of samples/; this will allow us to optimize testing and building by operating only on things that have changed.

* feat: Update release.yml

Adds debug statement to release.yml, but importantly ALSO removes the build-all statement, in anticipation that it's not coming back.

Author: willum070

.github/workflows/release.yml

@@ -54,7 +54,22 @@ jobs:
           node-version: '22.x'
 
       - run: npm i
-      - run: npm run build-all
+
+      - name: Get Affected Workspaces
+        id: get_workspaces
+        run: bash samples/find-changes.sh origin/main
+
+      - name: Build Affected Projects
+        if: steps.get_workspaces.outputs.changed_workspaces != ''
+        run: |
+          IFS=$'\n'
+          AFFECTED_WORKSPACES_ARRAY=(${{ steps.get_workspaces.outputs.changed_workspaces }})
+          
+          echo "Building affected workspaces:"
+          for workspace in "${AFFECTED_WORKSPACES_ARRAY[@]}"; do
+            echo "  - samples/$workspace"
+            npm run build --workspace=samples/$workspace
+          done
 
       - uses: google-github-actions/auth@v1
         with:

samples/find-changes.sh

@@ -0,0 +1,69 @@
+#!/bin/bash
+
+# This script is intended to be run from the root directory.
+
+# --- Configuration ---
+BASE_REF=${1:-"origin/main"}
+PROJECTS_ROOT_DIR="samples/"
+
+# --- Script Logic ---
+
+echo "Detecting changed (added or modified) subfolders in '$PROJECTS_ROOT_DIR' since '$BASE_REF'..."
+
+# Get files that were ADDED or MODIFIED in the PROJECTS_ROOT_DIR
+CHANGED_FILES=$(git diff --name-only --diff-filter=AM $BASE_REF HEAD -- "$PROJECTS_ROOT_DIR")
+
+# Determine if we are in a GitHub Actions environment
+# GITHUB_ACTIONS is a built-in environment variable set to 'true' by GitHub Actions
+IS_GH_ACTIONS="${GITHUB_ACTIONS:-false}"
+
+# Function to set GitHub Actions output
+set_gh_output() {
+  local name="$1"
+  local value="$2"
+  if [ "$IS_GH_ACTIONS" = "true" ]; then
+    # Use the proper way to set multi-line output in GitHub Actions
+    echo "$name<<EOF" >> "$GITHUB_OUTPUT"
+    echo "$value" >> "$GITHUB_OUTPUT"
+    echo "EOF" >> "$GITHUB_OUTPUT"
+  fi
+}
+
+if [ -z "$CHANGED_FILES" ]; then
+  echo "No changes detected in '$PROJECTS_ROOT_DIR'."
+  set_gh_output "changed_workspaces" "" # Set an empty output for GH Actions
+  exit 0
+fi
+
+echo "All added or modified files detected:"
+echo "$CHANGED_FILES"
+echo "---"
+
+AFFECTED_SUBFOLDERS=""
+for file in $CHANGED_FILES; do
+  relative_path="${file#$PROJECTS_ROOT_DIR}"
+  
+  if [[ -n "$relative_path" && "$relative_path" == */* ]]; then
+    subfolder=$(echo "$relative_path" | cut -d '/' -f 1)
+    
+    if [ -n "$subfolder" ]; then
+      AFFECTED_SUBFOLDERS+="$subfolder\n"
+    fi
+  else
+    echo "Ignoring change to file directly in '$PROJECTS_ROOT_DIR': $file"
+  fi
+done
+
+UNIQUE_CHANGED_WORKSPACES=$(echo -e "$AFFECTED_SUBFOLDERS" | sort -u)
+
+if [ -z "$UNIQUE_CHANGED_WORKSPACES" ]; then
+  echo "No specific project subfolders affected within '$PROJECTS_ROOT_DIR'."
+  set_gh_output "changed_workspaces" "" # Set an empty output for GH Actions
+  exit 0
+fi
+
+echo "Changed (added or modified) subfolders in '$PROJECTS_ROOT_DIR':"
+echo "$UNIQUE_CHANGED_WORKSPACES"
+
+# Set the output variable for GitHub Actions
+set_gh_output "changed_workspaces" "$UNIQUE_CHANGED_WORKSPACES"