Initial commit

src/index.js

@@ -0,0 +1,33 @@
+const path = require('path');
+const fs = require('node:fs');
+//const core = require('@actions/core');
+
+// C:\Users\ => C\:\\Users\\
+const escapeRegExp = (s) =>
+	s.replace(/[:.*+?^${}()|\/[\]\\]/g, "\\$&");
+
+
+// ${{ key }}, ${{var}}, ${{ aggqq43g3qg4 }}
+const variable = (key) =>
+	new RegExp("\\${{\\s*?" + key + "\\s*?}}", "g");
+
+
+// default value set in /action.yml
+// const root = core.getInput('root', { required: false });
+root = '/tmp/workspace';
+
+const templatePath = path.join(__dirname, "gcc_matcher.jsontemplate");
+
+const parsed = 
+	fs.readFileSync(templatePath, "ascii")
+		.replace(variable("BASE"), escapeRegExp(root));
+
+const matcherPath = path.join(__dirname, "gcc_matcher.json");
+
+fs.writeFileSync(matcherPath, parsed);
+
+console.log('::add-matcher::' + matcherPath);
+
+/* for testing */ 
+exports.escapeRegExp = escapeRegExp
+exports.variable = variable;