feat: add some CI and github improvements

.github/dependabot.yml

@@ -0,0 +1,6 @@
+version: 2
+updates:
+- package-ecosystem: github-actions
+  directory: /
+  schedule:
+    interval: daily

.github/pull_request_template.md

@@ -0,0 +1,8 @@
+<!--
+IMPORTANT NOTE: Commits must adhere to the conventional commits specification:
+https://www.conventionalcommits.org/en/v1.0.0/
+-->
+
+Explain the **details** for making this change. What existing problem does the pull request solve?
+
+Put `Closes: #XXXX` in your comment to auto-close the issue that your PR fixes (if such).

.github/workflows/lint-commit-messages.yaml

@@ -0,0 +1,11 @@
+name: Lint Commit Messages
+on: pull_request
+
+jobs:
+  commitlint:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - uses: wagoid/commitlint-github-action@v2

.github/workflows/tag-release.yaml

@@ -0,0 +1,40 @@
+name: Tag and Release
+
+on:
+  push:
+    branches:
+    - main
+
+jobs:
+  tag:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+    - name: Configure Git
+      run: |
+        git config --global user.name "$GITHUB_ACTOR"
+        git config --global user.email "$GITHUB_ACTOR@users.noreply.github.com"
+    - uses: actions/setup-go@v2
+      with:
+        go-version: "^1.15"
+    - name: Install ccv
+      run: go get github.com/smlx/ccv
+    - name: Bump tag if necessary
+      id: tag
+      run: |
+        if [ -z $(git tag -l $(ccv)) ]; then
+          git tag $(ccv)
+          git push --tags
+          echo "::set-output name=new::true"
+        fi
+    - name: Run GoReleaser
+      if: steps.tag.outputs.new == 'true'
+      uses: goreleaser/goreleaser-action@v2
+      with:
+        version: latest
+        args: release --rm-dist
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/test.yaml

@@ -0,0 +1,17 @@
+name: Test Suite
+on: pull_request
+
+jobs:
+  go-test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - name: Configure Git
+      run: |
+        git config --global user.name "$GITHUB_ACTOR"
+        git config --global user.email "$GITHUB_ACTOR@users.noreply.github.com"
+        echo $GITHUB_ACTOR
+    - uses: actions/setup-go@v2
+      with:
+        go-version: "^1.15"
+    - run: go test -v .

main_test.go

@@ -1,7 +1,6 @@
 package main_test
 
 import (
-	"fmt"
 	"io/ioutil"
 	"os/exec"
 	"testing"
@@ -50,16 +49,14 @@ func TestNextVersion(t *testing.T) {
 			// init git repo
 			initCmd := exec.Command("git", "init")
 			initCmd.Dir = dir
-			initCmd.Env = []string{fmt.Sprintf("HOME=%s", dir)}
 			if err = initCmd.Run(); err != nil {
 				tt.Fatalf("couldn't git init: %v", err)
 			}
 			for _, c := range tc.gitCmds {
 				cmd := exec.Command("git", c...)
 				cmd.Dir = dir
-				cmd.Env = []string{fmt.Sprintf("HOME=%s", dir)}
-				if err = cmd.Run(); err != nil {
-					tt.Fatalf("couldn't run git command `%s`: %v", c, err)
+				if output, err := cmd.CombinedOutput(); err != nil {
+					tt.Fatalf("couldn't run git %v: %v (%s)", c, err, output)
 				}
 			}
 			tt.Log(dir)