clean up and rename things to follow proper conventions

lib/exec-wrapper.js

@@ -0,0 +1,86 @@
+"use strict";
+var __importStar = (this && this.__importStar) || function (mod) {
+    if (mod && mod.__esModule) return mod;
+    var result = {};
+    if (mod != null) for (var k in mod) if (Object.hasOwnProperty.call(mod, k)) result[k] = mod[k];
+    result["default"] = mod;
+    return result;
+};
+Object.defineProperty(exports, "__esModule", { value: true });
+const exec = __importStar(require("@actions/exec"));
+/**
+ * Wrapper for exec.exec which checks for specific return code and/or regex matches in console output.
+ * Output will be streamed to the live console as well as captured for subsequent processing.
+ * Returns promise with return code
+ *
+ * @param     commandLine        command to execute (can include additional args). Must be correctly escaped.
+ * @param     matchers           defines specific codes and/or regexes that should lead to return of a custom error
+ * @param     args               optional arguments for tool. Escaping is handled by the lib.
+ * @param     options            optional exec options.  See ExecOptions
+ * @returns   Promise<number>    exit code
+ */
+async function execErrorCatcher(commandLine, args, matchers, options) {
+    var _a;
+    let stdout = '';
+    let stderr = '';
+    let listeners = {
+        stdout: (data) => {
+            var _a, _b;
+            stdout += data.toString();
+            if (((_b = (_a = options) === null || _a === void 0 ? void 0 : _a.listeners) === null || _b === void 0 ? void 0 : _b.stdout) !== undefined) {
+                options.listeners.stdout(data);
+            }
+            else {
+                // if no stdout listener was originally defined then we match default behavior of exec.exec
+                process.stdout.write(data);
+            }
+        },
+        stderr: (data) => {
+            var _a, _b;
+            stderr += data.toString();
+            if (((_b = (_a = options) === null || _a === void 0 ? void 0 : _a.listeners) === null || _b === void 0 ? void 0 : _b.stderr) !== undefined) {
+                options.listeners.stderr(data);
+            }
+            else {
+                // if no stderr listener was originally defined then we match default behavior of exec.exec
+                process.stderr.write(data);
+            }
+        }
+    };
+    // we capture the original return code or error so that if no match is found we can duplicate the behavior
+    let returnState;
+    try {
+        returnState = await exec.exec(commandLine, args, {
+            ...options,
+            listeners: listeners,
+            ignoreReturnCode: true,
+        });
+    }
+    catch (e) {
+        returnState = e;
+    }
+    // if there is a zero return code then we do not apply the matchers
+    if (returnState === 0)
+        return returnState;
+    if (matchers) {
+        for (const [customCode, regex, message] of matchers) {
+            if (customCode === returnState || regex && (regex.test(stderr) || regex.test(stdout))) {
+                throw new Error(message);
+            }
+        }
+    }
+    if (typeof returnState === 'number') {
+        // only if we were instructed to ignore the return code do we ever return it non-zero
+        if ((_a = options) === null || _a === void 0 ? void 0 : _a.ignoreReturnCode) {
+            return returnState;
+        }
+        else {
+            throw new Error(`The process \'${commandLine}\' failed with exit code ${returnState}`);
+        }
+    }
+    else {
+        throw returnState;
+    }
+}
+exports.execErrorCatcher = execErrorCatcher;
+//# sourceMappingURL=exec-wrapper.js.map