Bump matrix of supported Go versions (#1351)

* Bump matrix of supported Go versions

to test on the latest release (^1.18) and drop testing/supporting ^1.15.

* Switch to gfmrun v1.3.0

* Use `go env` correctly

* Add missing `"fmt"` import in example

* Use correct go version strings; other general CI updates

* Drop extra backslashes in continous command

.github/workflows/cli.yml

@@ -4,41 +4,34 @@ on:
   push:
     branches:
       - master
-      - v1
+    tags:
+      - v2.*
   pull_request:
     branches:
       - master
-      - v1
 
 jobs:
   test:
     strategy:
       matrix:
         os: [ubuntu-latest, macos-latest, windows-latest]
-        go: [1.15, 1.16, 1.17]
+        go: [1.16.x, 1.17.x, 1.18.x]
     name: ${{ matrix.os }} @ Go ${{ matrix.go }}
     runs-on: ${{ matrix.os }}
     steps:
       - name: Set up Go ${{ matrix.go }}
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v3
         with:
           go-version: ${{ matrix.go }}
 
-      - name: Set GOPATH, PATH and ENV
-        run: |
-          echo "GOPATH=$(dirname $GITHUB_WORKSPACE)" >> $GITHUB_ENV
-          echo "GO111MODULE=on" >> $GITHUB_ENV
-          echo "GOPROXY=https://proxy.golang.org" >> $GITHUB_ENV
-          echo "$(dirname $GITHUB_WORKSPACE)/bin" >> $GITHUB_PATH
-        shell: bash
+      - name: Set PATH
+        run: echo "${GITHUB_WORKSPACE}/.local/bin" >>"${GITHUB_PATH}"
 
       - name: Checkout Code
-        uses: actions/checkout@v1
-        with:
-          ref: ${{ github.ref }}
+        uses: actions/checkout@v3
 
       - name: GOFMT Check
-        if: matrix.go == 1.17 && matrix.os == 'ubuntu-latest'
+        if: matrix.go == '1.17.x' && matrix.os == 'ubuntu-latest'
         run: test -z $(gofmt -l .)
 
       - name: vet
@@ -51,8 +44,8 @@ jobs:
         run: go run internal/build/build.go check-binary-size
 
       - name: Upload coverage to Codecov
-        if: success() && matrix.go == 1.17 && matrix.os == 'ubuntu-latest'
-        uses: codecov/codecov-action@v1
+        if: success() && matrix.go == '1.17.x' && matrix.os == 'ubuntu-latest'
+        uses: codecov/codecov-action@v2
         with:
           fail_ci_if_error: true
 
@@ -61,44 +54,30 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set up Go
-        uses: actions/setup-go@v1
+        uses: actions/setup-go@v3
         with:
-          # Currently fails on 1.16+
-          go-version: 1.15
+          go-version: 1.18.x
 
-      - name: Use Node.js 12.x
-        uses: actions/setup-node@v1
+      - name: Use Node.js 16
+        uses: actions/setup-node@v3
         with:
-          node-version: 12.x
+          node-version: '16'
 
-      - name: Set GOPATH, PATH and ENV
-        run: |
-          echo "GOPATH=$(dirname $GITHUB_WORKSPACE)" >> $GITHUB_ENV
-          echo "GO111MODULE=on" >> $GITHUB_ENV
-          echo "GOPROXY=https://proxy.golang.org" >> $GITHUB_ENV
-          echo "$(dirname $GITHUB_WORKSPACE)/bin" >> $GITHUB_PATH
-        shell: bash
+      - name: Set PATH
+        run: echo "${GITHUB_WORKSPACE}/.local/bin" >>"${GITHUB_PATH}"
 
       - name: Checkout Code
-        uses: actions/checkout@v1
-        with:
-          ref: ${{ github.ref }}
+        uses: actions/checkout@v3
 
       - name: Install Dependencies
-        run: |
-          mkdir -p $GOPATH/bin
-          curl -L -o $GOPATH/bin/gfmrun "https://github.com/urfave/gfmrun/releases/download/v1.2.14/gfmrun-$(go env GOOS)-amd64-v1.2.14"
-          chmod +x $GOPATH/bin/gfmrun
+        run:
+          mkdir -p "${GITHUB_WORKSPACE}/.local/bin" &&
+          curl -fsSL -o "${GITHUB_WORKSPACE}/.local/bin/gfmrun" "https://github.com/urfave/gfmrun/releases/download/v1.3.0/gfmrun-$(go env GOOS)-$(go env GOARCH)-v1.3.0" &&
+          chmod +x "${GITHUB_WORKSPACE}/.local/bin/gfmrun" &&
           npm install -g markdown-toc@1.2.0
 
-      - name: Run Tests (v1)
-        if: contains(github.base_ref, 'v1')
-        run: |
-          go run internal/build/build.go gfmrun docs/v1/manual.md
-          go run internal/build/build.go toc docs/v1/manual.md
-
-      - name: Run Tests (v2)
-        if: contains(github.base_ref, 'master')
-        run: |
-          go run internal/build/build.go gfmrun docs/v2/manual.md
-          go run internal/build/build.go toc docs/v2/manual.md
+      - name: gfmrun
+        run: go run internal/build/build.go gfmrun docs/v2/manual.md
+
+      - name: toc
+        run: go run internal/build/build.go toc docs/v2/manual.md

.gitignore

@@ -5,5 +5,6 @@ vendor
 .idea
 internal/*/built-example
 coverage.txt
+/.local/
 
 *.exe

docs/v2/manual.md

@@ -674,8 +674,10 @@ Take for example this app that requires the `lang` flag:
 package main
 
 import (
+  "fmt"
   "log"
   "os"
+
   "github.com/urfave/cli/v2"
 )