Improve regex and add waveshare_epaper deprecation for testing

Co-authored-by: clydebarrow <2366188+clydebarrow@users.noreply.github.com>

.github/workflows/auto-label-pr.yml

@@ -389,10 +389,11 @@ jobs:
               const labels = new Set();
               const deprecatedInfo = [];
               
+              // Compile regex once for better performance
+              const componentFileRegex = /^esphome\/components\/([^\/]+)\/.+\.py$/;
+              
               // Get files that are modified or added in components directory
-              const componentFiles = changedFiles.filter(file => 
+              const componentFiles = changedFiles.filter(file => componentFileRegex.test(file));
-                file.match(/^esphome\/components\/([^\/]+)\/.+\.py$/)
-              );
               
               if (componentFiles.length === 0) {
                 return { labels, deprecatedInfo };
@@ -400,8 +401,9 @@ jobs:
               
               // Extract unique component names
               const components = new Set();
+              const componentMatchRegex = /^esphome\/components\/([^\/]+)\//;
               for (const file of componentFiles) {
-                const match = file.match(/^esphome\/components\/([^\/]+)\//);
+                const match = file.match(componentMatchRegex);
                 if (match) {
                   components.add(match[1]);
                 }
@@ -414,7 +416,10 @@ jobs:
                   const content = fs.readFileSync(initFile, 'utf8');
                   
                   // Look for DEPRECATED_COMPONENT = "message" or DEPRECATED_COMPONENT = 'message'
-                  const deprecatedMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*["'](.+?)["']/s);
+                  // Support both single and double quotes, and handle escaped quotes
+                  const doubleQuoteMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*"((?:[^"\\]|\\.)*)"/);
+                  const singleQuoteMatch = content.match(/DEPRECATED_COMPONENT\s*=\s*'((?:[^'\\]|\\.)*)'/);
+                  const deprecatedMatch = doubleQuoteMatch || singleQuoteMatch;
                   
                   if (deprecatedMatch) {
                     labels.add('deprecated_component');

esphome/components/test_deprecated_example/README.md

@@ -0,0 +1,17 @@
+# Test Deprecated Component
+
+This is a test component to validate the `deprecated_component` label functionality in the auto-label workflow.
+
+## Purpose
+
+This component demonstrates how the `DEPRECATED_COMPONENT` constant should be used:
+
+1. The component is still functional and usable
+2. It's deprecated and not actively maintained
+3. Users should migrate to an alternative when possible
+
+## Usage
+
+This is different from components that use `cv.invalid()`, which are completely unusable.
+
+Components with `DEPRECATED_COMPONENT` are still functional but discouraged for new projects.

esphome/components/waveshare_epaper/__init__.py

@@ -1 +1,2 @@
 CODEOWNERS = ["@clydebarrow"]
+DEPRECATED_COMPONENT = "The waveshare_epaper component is deprecated and no new models will be added. For new epaper displays use the epaper_spi component"