diff --git a/dist/post_run/index.js b/dist/post_run/index.js
index 957503d..f86b54a 100644
--- a/dist/post_run/index.js
+++ b/dist/post_run/index.js
@@ -96844,8 +96844,10 @@ async function buildCacheKeys() {
     return keys;
 }
 async function restoreCache() {
-    if (core.getBooleanInput(`skip-cache`, { required: true }))
+    if (core.getBooleanInput(`skip-cache`, { required: true })) {
+        core.info(`Skipping cache restoration`);
         return;
+    }
     if (!utils.isValidEvent()) {
         utils.logWarning(`Event Validation Error: The event type ${process.env[constants_1.Events.Key]} is not supported because it's not tied to a branch or tag ref.`);
         return;
@@ -96881,10 +96883,14 @@ async function restoreCache() {
     }
 }
 async function saveCache() {
-    if (core.getBooleanInput(`skip-cache`, { required: true }))
+    if (core.getBooleanInput(`skip-cache`, { required: true })) {
+        core.info(`Skipping cache saving`);
         return;
-    if (core.getBooleanInput(`skip-save-cache`, { required: true }))
+    }
+    if (core.getBooleanInput(`skip-save-cache`, { required: true })) {
+        core.info(`Skipping cache saving`);
         return;
+    }
     // Validate inputs, this can cause task failure
     if (!utils.isValidEvent()) {
         utils.logWarning(`Event Validation Error: The event type ${process.env[constants_1.Events.Key]} is not supported because it's not tied to a branch or tag ref.`);
@@ -96999,12 +97005,13 @@ exports.installBinary = installBinary;
 const core = __importStar(__nccwpck_require__(37484));
 const tc = __importStar(__nccwpck_require__(33472));
 const child_process_1 = __nccwpck_require__(35317);
+const fs_1 = __importDefault(__nccwpck_require__(79896));
 const os_1 = __importDefault(__nccwpck_require__(70857));
 const path_1 = __importDefault(__nccwpck_require__(16928));
 const util_1 = __nccwpck_require__(39023);
 const which_1 = __importDefault(__nccwpck_require__(11189));
 const version_1 = __nccwpck_require__(311);
-const execShellCommand = (0, util_1.promisify)(child_process_1.exec);
+const execCommand = (0, util_1.promisify)(child_process_1.exec);
 var InstallMode;
 (function (InstallMode) {
     InstallMode["Binary"] = "binary";
@@ -97018,6 +97025,7 @@ const printOutput = (res) => {
     if (res.stderr) {
         core.info(res.stderr);
     }
+    return res;
 };
 /**
  * Install golangci-lint.
@@ -97025,6 +97033,15 @@ const printOutput = (res) => {
  * @returns             path to installed binary of golangci-lint.
  */
 async function install() {
+    const problemMatchers = core.getBooleanInput(`problem-matchers`);
+    if (problemMatchers) {
+        const matchersPath = path_1.default.join(__dirname, "../..", "problem-matchers.json");
+        if (fs_1.default.existsSync(matchersPath)) {
+            // Adds problem matchers.
+            // https://github.com/actions/setup-go/blob/cdcb36043654635271a94b9a6d1392de5bb323a7/src/main.ts#L81-L83
+            core.info(`##[add-matcher]${matchersPath}`);
+        }
+    }
     const mode = core.getInput("install-mode").toLowerCase();
     if (mode === InstallMode.None) {
         const binPath = await (0, which_1.default)("golangci-lint", { nothrow: true });
@@ -97064,10 +97081,8 @@ async function goInstall(versionInfo) {
     core.info(`Installing golangci-lint ${versionInfo.TargetVersion}...`);
     const startedAt = Date.now();
     const options = { env: { ...process.env, CGO_ENABLED: "1" } };
-    const exres = await execShellCommand(`go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@${versionInfo.TargetVersion}`, options);
-    printOutput(exres);
-    const res = await execShellCommand(`go install -n github.com/golangci/golangci-lint/v2/cmd/golangci-lint@${versionInfo.TargetVersion}`, options);
-    printOutput(res);
+    await execCommand(`go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@${versionInfo.TargetVersion}`, options).then(printOutput);
+    const res = await execCommand(`go install -n github.com/golangci/golangci-lint/v2/cmd/golangci-lint@${versionInfo.TargetVersion}`, options).then(printOutput);
     // The output of `go install -n` when the binary is already installed is `touch <path_to_the_binary>`.
     const binPath = res.stderr
         .split(/\r?\n/)
@@ -97196,9 +97211,6 @@ function isOnlyNewIssues() {
     return core.getBooleanInput(`only-new-issues`, { required: true });
 }
 async function fetchPatch() {
-    if (!isOnlyNewIssues()) {
-        return ``;
-    }
     const ctx = github.context;
     switch (ctx.eventName) {
         case `pull_request`:
@@ -97242,8 +97254,7 @@ async function fetchPullRequestPatch(ctx) {
         return ``; // don't fail the action, but analyze without patch
     }
     try {
-        const tempDir = await createTempDir();
-        const patchPath = path_1.default.join(tempDir, "pull.patch");
+        const patchPath = await createTempDir().then((tempDir) => path_1.default.join(tempDir, "pull.patch"));
         core.info(`Writing patch to ${patchPath}`);
         await writeFile(patchPath, (0, diffUtils_1.alterDiffPatch)(patch));
         return patchPath;
@@ -97277,8 +97288,7 @@ async function fetchPushPatch(ctx) {
         return ``; // don't fail the action, but analyze without patch
     }
     try {
-        const tempDir = await createTempDir();
-        const patchPath = path_1.default.join(tempDir, "push.patch");
+        const patchPath = await createTempDir().then((tempDir) => path_1.default.join(tempDir, "push.patch"));
         core.info(`Writing patch to ${patchPath}`);
         await writeFile(patchPath, (0, diffUtils_1.alterDiffPatch)(patch));
         return patchPath;
@@ -97341,7 +97351,7 @@ const fs = __importStar(__nccwpck_require__(79896));
 const path = __importStar(__nccwpck_require__(16928));
 const util_1 = __nccwpck_require__(39023);
 const yaml_1 = __importDefault(__nccwpck_require__(38815));
-const execShellCommand = (0, util_1.promisify)(child_process_1.exec);
+const execCommand = (0, util_1.promisify)(child_process_1.exec);
 const printOutput = (res) => {
     if (res.stdout) {
         core.info(res.stdout);
@@ -97366,7 +97376,7 @@ async function install(binPath) {
         .map((filename) => path.join(rootDir, filename))
         .find((filePath) => fs.existsSync(filePath));
     if (!configFile || configFile === "") {
-        return "";
+        return binPath;
     }
     core.info(`Found configuration for the plugin module system : ${configFile}`);
     core.info(`Building and installing custom golangci-lint binary...`);
@@ -97388,18 +97398,16 @@ async function install(binPath) {
     }
     const cmd = `${binPath} custom`;
     core.info(`Running [${cmd}] in [${rootDir}] ...`);
-    try {
-        const options = {
-            cwd: rootDir,
-        };
-        const res = await execShellCommand(cmd, options);
-        printOutput(res);
-        core.info(`Built custom golangci-lint binary in ${Date.now() - startedAt}ms`);
-        return path.join(rootDir, config.destination, config.name);
-    }
-    catch (exc) {
+    const options = {
+        cwd: rootDir,
+    };
+    return execCommand(cmd, options)
+        .then(printOutput)
+        .then(() => core.info(`Built custom golangci-lint binary in ${Date.now() - startedAt}ms`))
+        .then(() => path.join(rootDir, config.destination, config.name))
+        .catch((exc) => {
         throw new Error(`Failed to build custom golangci-lint binary: ${exc.message}`);
-    }
+    });
 }
 
 
@@ -97456,24 +97464,7 @@ const cache_1 = __nccwpck_require__(97377);
 const install_1 = __nccwpck_require__(90232);
 const patch_1 = __nccwpck_require__(47161);
 const plugins = __importStar(__nccwpck_require__(96067));
-const execShellCommand = (0, util_1.promisify)(child_process_1.exec);
-async function prepareEnv(installOnly) {
-    const startedAt = Date.now();
-    // Prepare cache, lint and go in parallel.
-    await (0, cache_1.restoreCache)();
-    let binPath = await (0, install_1.install)();
-    // Build custom golangci-lint if needed.
-    const customBinPath = await plugins.install(binPath);
-    if (customBinPath !== "") {
-        binPath = customBinPath;
-    }
-    if (installOnly) {
-        return { binPath, patchPath: `` };
-    }
-    const patchPath = await (0, patch_1.fetchPatch)();
-    core.info(`Prepared env in ${Date.now() - startedAt}ms`);
-    return { binPath, patchPath };
-}
+const execCommand = (0, util_1.promisify)(child_process_1.exec);
 const printOutput = (res) => {
     if (res.stdout) {
         core.info(res.stdout);
@@ -97482,12 +97473,7 @@ const printOutput = (res) => {
         core.info(res.stderr);
     }
 };
-async function runLint(binPath, patchPath) {
-    const debug = core.getInput(`debug`);
-    if (debug.split(`,`).includes(`cache`)) {
-        const res = await execShellCommand(`${binPath} cache status`);
-        printOutput(res);
-    }
+async function runGolangciLint(binPath, rootDir) {
     const userArgs = core.getInput(`args`);
     const addedArgs = [];
     const userArgsList = userArgs
@@ -97499,15 +97485,6 @@ async function runLint(binPath, patchPath) {
         .map(([key, value]) => [key.toLowerCase(), value ?? ""]);
     const userArgsMap = new Map(userArgsList);
     const userArgNames = new Set(userArgsList.map(([key]) => key));
-    const problemMatchers = core.getBooleanInput(`problem-matchers`);
-    if (problemMatchers) {
-        const matchersPath = path.join(__dirname, "../..", "problem-matchers.json");
-        if (fs.existsSync(matchersPath)) {
-            // Adds problem matchers.
-            // https://github.com/actions/setup-go/blob/cdcb36043654635271a94b9a6d1392de5bb323a7/src/main.ts#L81-L83
-            core.info(`##[add-matcher]${matchersPath}`);
-        }
-    }
     if ((0, patch_1.isOnlyNewIssues)()) {
         if (userArgNames.has(`new`) ||
             userArgNames.has(`new-from-rev`) ||
@@ -97516,6 +97493,7 @@ async function runLint(binPath, patchPath) {
             throw new Error(`please, don't specify manually --new* args when requesting only new issues`);
         }
         const ctx = github.context;
+        const patchPath = await (0, patch_1.fetchPatch)();
         core.info(`only new issues on ${ctx.eventName}: ${patchPath}`);
         switch (ctx.eventName) {
             case `pull_request`:
@@ -97541,27 +97519,21 @@ async function runLint(binPath, patchPath) {
         }
     }
     const cmdArgs = {};
-    const workingDirectory = core.getInput(`working-directory`);
-    if (workingDirectory) {
-        if (!fs.existsSync(workingDirectory) || !fs.lstatSync(workingDirectory).isDirectory()) {
-            throw new Error(`working-directory (${workingDirectory}) was not a path`);
-        }
+    if (rootDir) {
         if (!userArgNames.has(`path-prefix`) && !userArgNames.has(`path-mode`)) {
             addedArgs.push(`--path-mode=abs`);
         }
-        cmdArgs.cwd = path.resolve(workingDirectory);
+        cmdArgs.cwd = path.resolve(rootDir);
     }
     await runVerify(binPath, userArgsMap, cmdArgs);
     const cmd = `${binPath} run ${addedArgs.join(` `)} ${userArgs}`.trimEnd();
     core.info(`Running [${cmd}] in [${cmdArgs.cwd || process.cwd()}] ...`);
     const startedAt = Date.now();
-    try {
-        const res = await execShellCommand(cmd, cmdArgs);
-        printOutput(res);
-        core.info(`golangci-lint found no issues`);
-    }
-    catch (exc) {
-        // This logging passes issues to GitHub annotations but comments can be more convenient for some users.
+    return execCommand(cmd, cmdArgs)
+        .then(printOutput)
+        .then(() => core.info(`golangci-lint found no issues`))
+        .catch((exc) => {
+        // This logging passes issues to GitHub annotations.
         printOutput(exc);
         if (exc.code === 1) {
             core.setFailed(`issues found`);
@@ -97569,8 +97541,8 @@ async function runLint(binPath, patchPath) {
         else {
             core.setFailed(`golangci-lint exit with code ${exc.code}`);
         }
-    }
-    core.info(`Ran golangci-lint in ${Date.now() - startedAt}ms`);
+    })
+        .finally(() => core.info(`Ran golangci-lint in ${Date.now() - startedAt}ms`));
 }
 async function runVerify(binPath, userArgsMap, cmdArgs) {
     const verify = core.getBooleanInput(`verify`, { required: true });
@@ -97586,8 +97558,7 @@ async function runVerify(binPath, userArgsMap, cmdArgs) {
         cmdVerify += ` --config=${userArgsMap.get("config")}`;
     }
     core.info(`Running [${cmdVerify}] in [${cmdArgs.cwd || process.cwd()}] ...`);
-    const res = await execShellCommand(cmdVerify, cmdArgs);
-    printOutput(res);
+    await execCommand(cmdVerify, cmdArgs).then(printOutput);
 }
 async function getConfigPath(binPath, userArgsMap, cmdArgs) {
     let cmdConfigPath = `${binPath} config path`;
@@ -97596,22 +97567,73 @@ async function getConfigPath(binPath, userArgsMap, cmdArgs) {
     }
     core.info(`Running [${cmdConfigPath}] in [${cmdArgs.cwd || process.cwd()}] ...`);
     try {
-        const resPath = await execShellCommand(cmdConfigPath, cmdArgs);
+        const resPath = await execCommand(cmdConfigPath, cmdArgs);
         return resPath.stderr.trim();
     }
     catch {
         return ``;
     }
 }
+async function debugAction(binPath) {
+    const flags = core.getInput(`debug`).split(`,`);
+    if (flags.includes(`clean`)) {
+        const cmd = `${binPath} cache clean`;
+        core.info(`Running [${cmd}] ...`);
+        await execCommand(cmd).then(printOutput);
+    }
+    if (flags.includes(`cache`)) {
+        const cmd = `${binPath} cache status`;
+        core.info(`Running [${cmd}] ...`);
+        await execCommand(cmd).then(printOutput);
+    }
+}
+function getWorkingDirectory() {
+    const workingDirectory = core.getInput(`working-directory`);
+    if (workingDirectory) {
+        if (!fs.existsSync(workingDirectory) || !fs.lstatSync(workingDirectory).isDirectory()) {
+            throw new Error(`working-directory (${workingDirectory}) was not a path`);
+        }
+    }
+    return workingDirectory;
+}
+function modulesAutoDetection(rootDir) {
+    const o = {
+        cwd: rootDir,
+        exclude: ["**/vendor/**", "**/node_modules/**", "**/.git/**", "**/dist/**"],
+    };
+    const matches = fs.globSync("**/go.mod", o);
+    const dirs = matches
+        .filter((m) => typeof m === "string")
+        .map((m) => path.resolve(rootDir, path.dirname(m)))
+        .sort();
+    return [...new Set(dirs)];
+}
+async function runLint(binPath) {
+    const workingDirectory = getWorkingDirectory();
+    const experimental = core.getInput(`experimental`).split(`,`);
+    if (experimental.includes(`automatic-module-directories`)) {
+        const wds = modulesAutoDetection(workingDirectory);
+        const cwd = process.cwd();
+        for (const wd of wds) {
+            await core.group(`run golangci-lint in ${path.relative(cwd, wd)}`, () => runGolangciLint(binPath, wd));
+        }
+        return;
+    }
+    await core.group(`run golangci-lint`, () => runGolangciLint(binPath, workingDirectory));
+}
 async function run() {
     try {
-        const installOnly = core.getBooleanInput(`install-only`, { required: true });
-        const { binPath, patchPath } = await core.group(`prepare environment`, () => prepareEnv(installOnly));
+        await core.group(`Restore cache`, cache_1.restoreCache);
+        const binPath = await core.group(`Install`, () => (0, install_1.install)().then(plugins.install));
         core.addPath(path.dirname(binPath));
+        if (core.getInput(`debug`)) {
+            await core.group(`Debug`, () => debugAction(binPath));
+        }
+        const installOnly = core.getBooleanInput(`install-only`, { required: true });
         if (installOnly) {
             return;
         }
-        await core.group(`run golangci-lint`, () => runLint(binPath, patchPath));
+        await runLint(binPath);
     }
     catch (error) {
         core.error(`Failed to run: ${error}, ${error.stack}`);
diff --git a/dist/run/index.js b/dist/run/index.js
index 073f718..98236e9 100644
--- a/dist/run/index.js
+++ b/dist/run/index.js
@@ -96844,8 +96844,10 @@ async function buildCacheKeys() {
     return keys;
 }
 async function restoreCache() {
-    if (core.getBooleanInput(`skip-cache`, { required: true }))
+    if (core.getBooleanInput(`skip-cache`, { required: true })) {
+        core.info(`Skipping cache restoration`);
         return;
+    }
     if (!utils.isValidEvent()) {
         utils.logWarning(`Event Validation Error: The event type ${process.env[constants_1.Events.Key]} is not supported because it's not tied to a branch or tag ref.`);
         return;
@@ -96881,10 +96883,14 @@ async function restoreCache() {
     }
 }
 async function saveCache() {
-    if (core.getBooleanInput(`skip-cache`, { required: true }))
+    if (core.getBooleanInput(`skip-cache`, { required: true })) {
+        core.info(`Skipping cache saving`);
         return;
-    if (core.getBooleanInput(`skip-save-cache`, { required: true }))
+    }
+    if (core.getBooleanInput(`skip-save-cache`, { required: true })) {
+        core.info(`Skipping cache saving`);
         return;
+    }
     // Validate inputs, this can cause task failure
     if (!utils.isValidEvent()) {
         utils.logWarning(`Event Validation Error: The event type ${process.env[constants_1.Events.Key]} is not supported because it's not tied to a branch or tag ref.`);
@@ -96999,12 +97005,13 @@ exports.installBinary = installBinary;
 const core = __importStar(__nccwpck_require__(37484));
 const tc = __importStar(__nccwpck_require__(33472));
 const child_process_1 = __nccwpck_require__(35317);
+const fs_1 = __importDefault(__nccwpck_require__(79896));
 const os_1 = __importDefault(__nccwpck_require__(70857));
 const path_1 = __importDefault(__nccwpck_require__(16928));
 const util_1 = __nccwpck_require__(39023);
 const which_1 = __importDefault(__nccwpck_require__(11189));
 const version_1 = __nccwpck_require__(311);
-const execShellCommand = (0, util_1.promisify)(child_process_1.exec);
+const execCommand = (0, util_1.promisify)(child_process_1.exec);
 var InstallMode;
 (function (InstallMode) {
     InstallMode["Binary"] = "binary";
@@ -97018,6 +97025,7 @@ const printOutput = (res) => {
     if (res.stderr) {
         core.info(res.stderr);
     }
+    return res;
 };
 /**
  * Install golangci-lint.
@@ -97025,6 +97033,15 @@ const printOutput = (res) => {
  * @returns             path to installed binary of golangci-lint.
  */
 async function install() {
+    const problemMatchers = core.getBooleanInput(`problem-matchers`);
+    if (problemMatchers) {
+        const matchersPath = path_1.default.join(__dirname, "../..", "problem-matchers.json");
+        if (fs_1.default.existsSync(matchersPath)) {
+            // Adds problem matchers.
+            // https://github.com/actions/setup-go/blob/cdcb36043654635271a94b9a6d1392de5bb323a7/src/main.ts#L81-L83
+            core.info(`##[add-matcher]${matchersPath}`);
+        }
+    }
     const mode = core.getInput("install-mode").toLowerCase();
     if (mode === InstallMode.None) {
         const binPath = await (0, which_1.default)("golangci-lint", { nothrow: true });
@@ -97064,10 +97081,8 @@ async function goInstall(versionInfo) {
     core.info(`Installing golangci-lint ${versionInfo.TargetVersion}...`);
     const startedAt = Date.now();
     const options = { env: { ...process.env, CGO_ENABLED: "1" } };
-    const exres = await execShellCommand(`go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@${versionInfo.TargetVersion}`, options);
-    printOutput(exres);
-    const res = await execShellCommand(`go install -n github.com/golangci/golangci-lint/v2/cmd/golangci-lint@${versionInfo.TargetVersion}`, options);
-    printOutput(res);
+    await execCommand(`go install github.com/golangci/golangci-lint/v2/cmd/golangci-lint@${versionInfo.TargetVersion}`, options).then(printOutput);
+    const res = await execCommand(`go install -n github.com/golangci/golangci-lint/v2/cmd/golangci-lint@${versionInfo.TargetVersion}`, options).then(printOutput);
     // The output of `go install -n` when the binary is already installed is `touch <path_to_the_binary>`.
     const binPath = res.stderr
         .split(/\r?\n/)
@@ -97196,9 +97211,6 @@ function isOnlyNewIssues() {
     return core.getBooleanInput(`only-new-issues`, { required: true });
 }
 async function fetchPatch() {
-    if (!isOnlyNewIssues()) {
-        return ``;
-    }
     const ctx = github.context;
     switch (ctx.eventName) {
         case `pull_request`:
@@ -97242,8 +97254,7 @@ async function fetchPullRequestPatch(ctx) {
         return ``; // don't fail the action, but analyze without patch
     }
     try {
-        const tempDir = await createTempDir();
-        const patchPath = path_1.default.join(tempDir, "pull.patch");
+        const patchPath = await createTempDir().then((tempDir) => path_1.default.join(tempDir, "pull.patch"));
         core.info(`Writing patch to ${patchPath}`);
         await writeFile(patchPath, (0, diffUtils_1.alterDiffPatch)(patch));
         return patchPath;
@@ -97277,8 +97288,7 @@ async function fetchPushPatch(ctx) {
         return ``; // don't fail the action, but analyze without patch
     }
     try {
-        const tempDir = await createTempDir();
-        const patchPath = path_1.default.join(tempDir, "push.patch");
+        const patchPath = await createTempDir().then((tempDir) => path_1.default.join(tempDir, "push.patch"));
         core.info(`Writing patch to ${patchPath}`);
         await writeFile(patchPath, (0, diffUtils_1.alterDiffPatch)(patch));
         return patchPath;
@@ -97341,7 +97351,7 @@ const fs = __importStar(__nccwpck_require__(79896));
 const path = __importStar(__nccwpck_require__(16928));
 const util_1 = __nccwpck_require__(39023);
 const yaml_1 = __importDefault(__nccwpck_require__(38815));
-const execShellCommand = (0, util_1.promisify)(child_process_1.exec);
+const execCommand = (0, util_1.promisify)(child_process_1.exec);
 const printOutput = (res) => {
     if (res.stdout) {
         core.info(res.stdout);
@@ -97366,7 +97376,7 @@ async function install(binPath) {
         .map((filename) => path.join(rootDir, filename))
         .find((filePath) => fs.existsSync(filePath));
     if (!configFile || configFile === "") {
-        return "";
+        return binPath;
     }
     core.info(`Found configuration for the plugin module system : ${configFile}`);
     core.info(`Building and installing custom golangci-lint binary...`);
@@ -97388,18 +97398,16 @@ async function install(binPath) {
     }
     const cmd = `${binPath} custom`;
     core.info(`Running [${cmd}] in [${rootDir}] ...`);
-    try {
-        const options = {
-            cwd: rootDir,
-        };
-        const res = await execShellCommand(cmd, options);
-        printOutput(res);
-        core.info(`Built custom golangci-lint binary in ${Date.now() - startedAt}ms`);
-        return path.join(rootDir, config.destination, config.name);
-    }
-    catch (exc) {
+    const options = {
+        cwd: rootDir,
+    };
+    return execCommand(cmd, options)
+        .then(printOutput)
+        .then(() => core.info(`Built custom golangci-lint binary in ${Date.now() - startedAt}ms`))
+        .then(() => path.join(rootDir, config.destination, config.name))
+        .catch((exc) => {
         throw new Error(`Failed to build custom golangci-lint binary: ${exc.message}`);
-    }
+    });
 }
 
 
@@ -97456,24 +97464,7 @@ const cache_1 = __nccwpck_require__(97377);
 const install_1 = __nccwpck_require__(90232);
 const patch_1 = __nccwpck_require__(47161);
 const plugins = __importStar(__nccwpck_require__(96067));
-const execShellCommand = (0, util_1.promisify)(child_process_1.exec);
-async function prepareEnv(installOnly) {
-    const startedAt = Date.now();
-    // Prepare cache, lint and go in parallel.
-    await (0, cache_1.restoreCache)();
-    let binPath = await (0, install_1.install)();
-    // Build custom golangci-lint if needed.
-    const customBinPath = await plugins.install(binPath);
-    if (customBinPath !== "") {
-        binPath = customBinPath;
-    }
-    if (installOnly) {
-        return { binPath, patchPath: `` };
-    }
-    const patchPath = await (0, patch_1.fetchPatch)();
-    core.info(`Prepared env in ${Date.now() - startedAt}ms`);
-    return { binPath, patchPath };
-}
+const execCommand = (0, util_1.promisify)(child_process_1.exec);
 const printOutput = (res) => {
     if (res.stdout) {
         core.info(res.stdout);
@@ -97482,12 +97473,7 @@ const printOutput = (res) => {
         core.info(res.stderr);
     }
 };
-async function runLint(binPath, patchPath) {
-    const debug = core.getInput(`debug`);
-    if (debug.split(`,`).includes(`cache`)) {
-        const res = await execShellCommand(`${binPath} cache status`);
-        printOutput(res);
-    }
+async function runGolangciLint(binPath, rootDir) {
     const userArgs = core.getInput(`args`);
     const addedArgs = [];
     const userArgsList = userArgs
@@ -97499,15 +97485,6 @@ async function runLint(binPath, patchPath) {
         .map(([key, value]) => [key.toLowerCase(), value ?? ""]);
     const userArgsMap = new Map(userArgsList);
     const userArgNames = new Set(userArgsList.map(([key]) => key));
-    const problemMatchers = core.getBooleanInput(`problem-matchers`);
-    if (problemMatchers) {
-        const matchersPath = path.join(__dirname, "../..", "problem-matchers.json");
-        if (fs.existsSync(matchersPath)) {
-            // Adds problem matchers.
-            // https://github.com/actions/setup-go/blob/cdcb36043654635271a94b9a6d1392de5bb323a7/src/main.ts#L81-L83
-            core.info(`##[add-matcher]${matchersPath}`);
-        }
-    }
     if ((0, patch_1.isOnlyNewIssues)()) {
         if (userArgNames.has(`new`) ||
             userArgNames.has(`new-from-rev`) ||
@@ -97516,6 +97493,7 @@ async function runLint(binPath, patchPath) {
             throw new Error(`please, don't specify manually --new* args when requesting only new issues`);
         }
         const ctx = github.context;
+        const patchPath = await (0, patch_1.fetchPatch)();
         core.info(`only new issues on ${ctx.eventName}: ${patchPath}`);
         switch (ctx.eventName) {
             case `pull_request`:
@@ -97541,27 +97519,21 @@ async function runLint(binPath, patchPath) {
         }
     }
     const cmdArgs = {};
-    const workingDirectory = core.getInput(`working-directory`);
-    if (workingDirectory) {
-        if (!fs.existsSync(workingDirectory) || !fs.lstatSync(workingDirectory).isDirectory()) {
-            throw new Error(`working-directory (${workingDirectory}) was not a path`);
-        }
+    if (rootDir) {
         if (!userArgNames.has(`path-prefix`) && !userArgNames.has(`path-mode`)) {
             addedArgs.push(`--path-mode=abs`);
         }
-        cmdArgs.cwd = path.resolve(workingDirectory);
+        cmdArgs.cwd = path.resolve(rootDir);
     }
     await runVerify(binPath, userArgsMap, cmdArgs);
     const cmd = `${binPath} run ${addedArgs.join(` `)} ${userArgs}`.trimEnd();
     core.info(`Running [${cmd}] in [${cmdArgs.cwd || process.cwd()}] ...`);
     const startedAt = Date.now();
-    try {
-        const res = await execShellCommand(cmd, cmdArgs);
-        printOutput(res);
-        core.info(`golangci-lint found no issues`);
-    }
-    catch (exc) {
-        // This logging passes issues to GitHub annotations but comments can be more convenient for some users.
+    return execCommand(cmd, cmdArgs)
+        .then(printOutput)
+        .then(() => core.info(`golangci-lint found no issues`))
+        .catch((exc) => {
+        // This logging passes issues to GitHub annotations.
         printOutput(exc);
         if (exc.code === 1) {
             core.setFailed(`issues found`);
@@ -97569,8 +97541,8 @@ async function runLint(binPath, patchPath) {
         else {
             core.setFailed(`golangci-lint exit with code ${exc.code}`);
         }
-    }
-    core.info(`Ran golangci-lint in ${Date.now() - startedAt}ms`);
+    })
+        .finally(() => core.info(`Ran golangci-lint in ${Date.now() - startedAt}ms`));
 }
 async function runVerify(binPath, userArgsMap, cmdArgs) {
     const verify = core.getBooleanInput(`verify`, { required: true });
@@ -97586,8 +97558,7 @@ async function runVerify(binPath, userArgsMap, cmdArgs) {
         cmdVerify += ` --config=${userArgsMap.get("config")}`;
     }
     core.info(`Running [${cmdVerify}] in [${cmdArgs.cwd || process.cwd()}] ...`);
-    const res = await execShellCommand(cmdVerify, cmdArgs);
-    printOutput(res);
+    await execCommand(cmdVerify, cmdArgs).then(printOutput);
 }
 async function getConfigPath(binPath, userArgsMap, cmdArgs) {
     let cmdConfigPath = `${binPath} config path`;
@@ -97596,22 +97567,73 @@ async function getConfigPath(binPath, userArgsMap, cmdArgs) {
     }
     core.info(`Running [${cmdConfigPath}] in [${cmdArgs.cwd || process.cwd()}] ...`);
     try {
-        const resPath = await execShellCommand(cmdConfigPath, cmdArgs);
+        const resPath = await execCommand(cmdConfigPath, cmdArgs);
         return resPath.stderr.trim();
     }
     catch {
         return ``;
     }
 }
+async function debugAction(binPath) {
+    const flags = core.getInput(`debug`).split(`,`);
+    if (flags.includes(`clean`)) {
+        const cmd = `${binPath} cache clean`;
+        core.info(`Running [${cmd}] ...`);
+        await execCommand(cmd).then(printOutput);
+    }
+    if (flags.includes(`cache`)) {
+        const cmd = `${binPath} cache status`;
+        core.info(`Running [${cmd}] ...`);
+        await execCommand(cmd).then(printOutput);
+    }
+}
+function getWorkingDirectory() {
+    const workingDirectory = core.getInput(`working-directory`);
+    if (workingDirectory) {
+        if (!fs.existsSync(workingDirectory) || !fs.lstatSync(workingDirectory).isDirectory()) {
+            throw new Error(`working-directory (${workingDirectory}) was not a path`);
+        }
+    }
+    return workingDirectory;
+}
+function modulesAutoDetection(rootDir) {
+    const o = {
+        cwd: rootDir,
+        exclude: ["**/vendor/**", "**/node_modules/**", "**/.git/**", "**/dist/**"],
+    };
+    const matches = fs.globSync("**/go.mod", o);
+    const dirs = matches
+        .filter((m) => typeof m === "string")
+        .map((m) => path.resolve(rootDir, path.dirname(m)))
+        .sort();
+    return [...new Set(dirs)];
+}
+async function runLint(binPath) {
+    const workingDirectory = getWorkingDirectory();
+    const experimental = core.getInput(`experimental`).split(`,`);
+    if (experimental.includes(`automatic-module-directories`)) {
+        const wds = modulesAutoDetection(workingDirectory);
+        const cwd = process.cwd();
+        for (const wd of wds) {
+            await core.group(`run golangci-lint in ${path.relative(cwd, wd)}`, () => runGolangciLint(binPath, wd));
+        }
+        return;
+    }
+    await core.group(`run golangci-lint`, () => runGolangciLint(binPath, workingDirectory));
+}
 async function run() {
     try {
-        const installOnly = core.getBooleanInput(`install-only`, { required: true });
-        const { binPath, patchPath } = await core.group(`prepare environment`, () => prepareEnv(installOnly));
+        await core.group(`Restore cache`, cache_1.restoreCache);
+        const binPath = await core.group(`Install`, () => (0, install_1.install)().then(plugins.install));
         core.addPath(path.dirname(binPath));
+        if (core.getInput(`debug`)) {
+            await core.group(`Debug`, () => debugAction(binPath));
+        }
+        const installOnly = core.getBooleanInput(`install-only`, { required: true });
         if (installOnly) {
             return;
         }
-        await core.group(`run golangci-lint`, () => runLint(binPath, patchPath));
+        await runLint(binPath);
     }
     catch (error) {
         core.error(`Failed to run: ${error}, ${error.stack}`);