Modify TEMPLATE repo to support multi-root GCC builds

Big thank-you to [xt0rted](https://github.com/xt0rted/problem-matcher) for the superb template for GH Action based Problem Matchers - really well done.

This is a GCC finding problem matcher, with one additional twist: support for GH Action based annotations of fromPath to support builds of sub-components in arbitrary non-root locations.

.github/problem-matcher.json

@@ -1,14 +1,18 @@
 {
   "problemMatcher": [
     {
-      "owner": "somelinter",
+      "owner": "gcc-problem-matcher",
       "pattern": [
         {
-          "regexp": "^([^:]*):(\\d+):?(\\d+)?\\s+([\\w-\\/]*)\\s+(.*)$",
+          "regexp": "^problem-match-root:(.*)$",
+          "fromPath": 1
+        },
+        {
+          "regexp": "^(.*):(\\d+):(\\d+):\\s+(?:fatal\\s+)?(warning|error):\\s+(.*)$",
           "file": 1,
           "line": 2,
           "column": 3,
-          "code": 4,
+          "severity": 4,
           "message": 5
         }
       ]

README.md

@@ -1,5 +1,9 @@
 # GitHub Actions Problem Matcher
 
+Big thank-you to [xt0rted](https://github.com/xt0rted) for the TEMPLATE.
+
+The pattern match regex [comes from vs-code](https://github.com/microsoft/vscode-cpptools/blob/a8285cbc0efb5b09c2d2229b0e0772dcb3b602df/Extension/package.json#L76-L94).
+
 [![CI Workflow Status](https://github.com/xt0rted/problem-matcher/workflows/CI/badge.svg)](https://github.com/xt0rted/problem-matcher/actions?query=workflow%3ACI)
 
 A GitHub Actions template to easily add or remove a problem matcher to workflows.

__tests__/problemMatcher.test.ts

@@ -6,18 +6,16 @@ const problemMatcher: ProblemMatcher = problemMatcherJson[0];
 
 describe("problemMatcher", () => {
   it("has the correct owner", () => {
-    expect(problemMatcher.owner).toEqual("somelinter");
+    expect(problemMatcher.owner).toEqual("gcc-problem-matcher");
   });
 
-  it("has one pattern", () => {
-    expect(problemMatcher.pattern.length).toEqual(1);
+  it("has two patterns", () => {
+    expect(problemMatcher.pattern.length).toEqual(2);
   });
 
-  describe("pattern", () => {
+  describe("root prefix pattern", () => {
     const reportOutput = [
-      "README.md:12:81 MD013/line-length Line length [Expected: 80; Actual: 149]",
-      "docs/README.md:21:81 MD013/line-length Line length [Expected: 80; Actual: 119]",
-      "docs/README.md:14 MD012/no-multiple-blanks Multiple consecutive blank lines [Expected: 1; Actual: 2]",
+      "problem-match-root:src/-",
     ];
 
     let pattern: ProblemPattern;
@@ -31,32 +29,51 @@ describe("problemMatcher", () => {
       results = matchResults(reportOutput, regexp);
     });
 
-    it("matches violations", () => {
-      expect(results.length).toEqual(3);
+    it("matches count of problem-match-root hints", () => {
+      expect(results.length).toEqual(1);
+    });
+
+    it("matches problem-match-root annotations", () => {
+      expect(results[0][pattern.fromPath]).toEqual("src/-");
     });
 
-    it("matches violation details", () => {
-      expect(results[0][pattern.file]).toEqual("README.md");
-      expect(results[0][pattern.line]).toEqual("12");
-      expect(results[0][pattern.column]).toEqual("81");
-      expect(results[0][pattern.code]).toEqual("MD013/line-length");
-      expect(results[0][pattern.message]).toEqual("Line length [Expected: 80; Actual: 149]");
+  });
+
+  describe("finding pattern", () => {
+    const reportOutput = [
+      "/magma/lte/gateway/c/oai/common/log.h:364:1: warning: type qualifiers ignored on function return type [-Wignored-qualifiers]",
+      "/magma/lte/gateway/c/oai/lib/3gpp/3gpp_24.008_common_ies.c:1031:61: warning: unused parameter 'len' [-Wunused-parameter]",
+    ];
+
+    let pattern: ProblemPattern;
+    let results: RegExpExecArray[];
+
+    beforeEach(() => {
+      pattern = problemMatcher.pattern[1];
+
+      const regexp = new RegExp(pattern.regexp);
+
+      results = matchResults(reportOutput, regexp);
+    });
+
+    it("matches violations", () => {
+      expect(results.length).toEqual(2);
     });
 
-    it("matches violation details in sub folder", () => {
-      expect(results[1][pattern.file]).toEqual("docs/README.md");
-      expect(results[1][pattern.line]).toEqual("21");
-      expect(results[1][pattern.column]).toEqual("81");
-      expect(results[1][pattern.code]).toEqual("MD013/line-length");
-      expect(results[1][pattern.message]).toEqual("Line length [Expected: 80; Actual: 119]");
+    it("matches gcc warnings without parameter note", () => {
+      expect(results[0][pattern.file]).toEqual("/magma/lte/gateway/c/oai/common/log.h");
+      expect(results[0][pattern.line]).toEqual("364");
+      expect(results[0][pattern.column]).toEqual("1");
+      expect(results[0][pattern.severity]).toEqual("warning");
+      expect(results[0][pattern.message]).toEqual("type qualifiers ignored on function return type [-Wignored-qualifiers]");
     });
 
-    it("matches violation details without column", () => {
-      expect(results[2][pattern.file]).toEqual("docs/README.md");
-      expect(results[2][pattern.line]).toEqual("14");
-      expect(results[2][pattern.column]).toBeUndefined();
-      expect(results[2][pattern.code]).toEqual("MD012/no-multiple-blanks");
-      expect(results[2][pattern.message]).toEqual("Multiple consecutive blank lines [Expected: 1; Actual: 2]");
+    it("matches gcc warnings with parameter note", () => {
+      expect(results[1][pattern.file]).toEqual("/magma/lte/gateway/c/oai/lib/3gpp/3gpp_24.008_common_ies.c");
+      expect(results[1][pattern.line]).toEqual("1031");
+      expect(results[1][pattern.column]).toEqual("61");
+      expect(results[1][pattern.severity]).toEqual("warning");
+      expect(results[1][pattern.message]).toEqual("unused parameter 'len' [-Wunused-parameter]");
     });
   });
 });

action.yml

@@ -1,8 +1,8 @@
 name: "Problem Matcher"
 
-description: "Sets up a problem matcher that's used to create annotations for violations"
+description: "Sets up a problem matcher that's used to create annotations for GCC Warnings and Errors"
 
-author: "xt0rted"
+author: "electronjoe thanks to xt0rted TEMPLATE"
 
 branding:
   icon: "command"

package.json

@@ -1,8 +1,8 @@
 {
-  "name": "problem-matcher",
+  "name": "gcc-problem-matcher-ts",
   "version": "1.0.0",
   "private": true,
-  "description": "Sets up a problem matcher to create annotations for violations",
+  "description": "Sets up a problem matcher to create annotations for gcc warnings and errors",
   "main": "dist/index.js",
   "scripts": {
     "build": "tsc",
@@ -13,15 +13,17 @@
   },
   "repository": {
     "type": "git",
-    "url": "git+https://github.com/xt0rted/problem-matcher.git"
+    "url": "git+https://github.com/electronjoe/gcc-problem-matcher-ts.git"
   },
   "keywords": [
     "actions",
     "github",
     "problem-matcher",
+    "gcc",
+    "warnings",
     "annotations"
   ],
-  "author": "xt0rted",
+  "author": "electronjoe courtesy TEMPLATE by xt0rted",
   "license": "MIT",
   "dependencies": {
     "@actions/core": "^1.2.6"