Try to get version from go.mod file (#118)

* Try to get version from go.mod file

* re-build

Co-authored-by: Sergey Vilgelm <sergey.vilgelm@ibm.com>

.eslintrc.json

@@ -15,8 +15,7 @@
     "plugin:import/errors",
     "plugin:import/warnings",
     "plugin:import/typescript",
-    "plugin:prettier/recommended",
-    "prettier/@typescript-eslint"
+    "plugin:prettier/recommended"
   ],
   "plugins": [
     "@typescript-eslint",

README.md

@@ -36,7 +36,7 @@ jobs:
       - name: golangci-lint
         uses: golangci/golangci-lint-action@v2
         with:
-          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
+          # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
           version: v1.29
 
           # Optional: working directory, useful for monorepos

package.json

@@ -37,17 +37,17 @@
     "tmp": "^0.2.1"
   },
   "devDependencies": {
-    "@types/node": "^14.14.25",
+    "@types/node": "^14.14.31",
     "@types/uuid": "^8.3.0",
-    "@typescript-eslint/eslint-plugin": "^2.34.0",
-    "@typescript-eslint/parser": "^2.34.0",
+    "@typescript-eslint/eslint-plugin": "^4.15.1",
+    "@typescript-eslint/parser": "^4.15.1",
     "@zeit/ncc": "^0.22.3",
-    "eslint": "^6.6.0",
-    "eslint-config-prettier": "^6.15.0",
+    "eslint": "^7.20.0",
+    "eslint-config-prettier": "^8.0.0",
     "eslint-plugin-import": "^2.22.1",
     "eslint-plugin-prettier": "^3.3.1",
     "eslint-plugin-simple-import-sort": "^7.0.0",
     "prettier": "^2.2.1",
-    "typescript": "^4.1.3"
+    "typescript": "^4.1.5"
   }
 }

src/install.ts

@@ -45,7 +45,12 @@ export async function installLint(versionConfig: VersionConfig): Promise<string>
     extractedDir = await tc.extractZip(archivePath, process.env.HOME)
     repl = /\.zip$/
   } else {
-    extractedDir = await tc.extractTar(archivePath, process.env.HOME)
+    // We want to always overwrite files if the local cache already has them
+    const args = ["xz"]
+    if (process.platform.toString() != "darwin") {
+      args.push("--overwrite")
+    }
+    extractedDir = await tc.extractTar(archivePath, process.env.HOME, args)
   }
 
   const urlParts = assetURL.split(`/`)

src/version.ts

@@ -1,5 +1,6 @@
 import * as core from "@actions/core"
 import * as httpm from "@actions/http-client"
+import * as fs from "fs"
 
 // TODO: make a class
 export type Version = {
@@ -9,6 +10,7 @@ export type Version = {
 } | null
 
 const versionRe = /^v(\d+)\.(\d+)(?:\.(\d+))?$/
+const modVersionRe = /github.com\/golangci\/golangci-lint\s(v.+)/
 
 const parseVersion = (s: string): Version => {
   if (s == "latest" || s == "") {
@@ -56,7 +58,17 @@ const isLessVersion = (a: Version, b: Version): boolean => {
 }
 
 const getRequestedLintVersion = (): Version => {
-  const requestedLintVersion = core.getInput(`version`)
+  let requestedLintVersion = core.getInput(`version`)
+
+  if (requestedLintVersion == "") {
+    const content = fs.readFileSync("go.mod", "utf-8")
+    const match = content.match(modVersionRe)
+    if (match) {
+      requestedLintVersion = match[1]
+      core.info(`Found golangci-lint version '${requestedLintVersion}' in go.mod`)
+    }
+  }
+
   const parsedRequestedLintVersion = parseVersion(requestedLintVersion)
   if (parsedRequestedLintVersion == null) {
     return null