feat(semantic-release): implement for this repo

.gitlab-ci.yml

@@ -0,0 +1,36 @@
+---
+###############################################################################
+# Define all YAML node anchors
+###############################################################################
+.node_anchors:
+  # `stage`
+  stage_release: &stage_release 'release'
+  # `image`
+  image_node: &image_node 'node:12-buster-slim'
+  # `before_script`
+  before_script_image_node: &before_script_image_node
+    - 'apt-get update
+       && apt-get install -y --no-install-recommends git-core ca-certificates'
+  # `only` (also used for `except` where applicable)
+  only_branch_master: &only_branch_master ['master']
+
+###############################################################################
+# Define stages
+###############################################################################
+stages:
+  - 'release'
+
+###############################################################################
+# `release` stage: `semantic-release`
+###############################################################################
+semantic-release:
+  only: *only_branch_master
+  stage: *stage_release
+  image: *image_node
+  before_script: *before_script_image_node
+  script:
+    - 'npm install -g semantic-release
+                      @semantic-release/gitlab
+                      @semantic-release/changelog
+                      @semantic-release/git'
+    - 'semantic-release'

commitlint.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+    extends: ['@commitlint/config-conventional'],
+};

release-rules.js

@@ -0,0 +1,16 @@
+// No release is triggered for the types commented out below.
+// Commits using these types will be incorporated into the next release.
+module.exports = [
+  {breaking: true, release: 'major'},
+  // {type: 'build', release: 'patch'},
+  // {type: 'chore', release: 'patch'},
+  // {type: 'ci', release: 'patch'},
+  {type: 'docs', release: 'patch'},
+  {type: 'feat', release: 'minor'},
+  {type: 'fix', release: 'patch'},
+  {type: 'perf', release: 'patch'},
+  {type: 'refactor', release: 'patch'},
+  {type: 'revert', release: 'patch'},
+  {type: 'style', release: 'patch'},
+  {type: 'test', release: 'patch'},
+];

release.config.js

@@ -0,0 +1,103 @@
+module.exports = {
+  branch: 'master',
+  plugins: [
+      ['@semantic-release/commit-analyzer', {
+        preset: 'angular',
+        releaseRules: './release-rules.js',
+      }],
+      '@semantic-release/release-notes-generator',
+      ['@semantic-release/changelog', {
+        changelogFile: 'CHANGELOG.md',
+        changelogTitle: '# Changelog',
+      }],
+      ['@semantic-release/git', {
+        assets: ['*.md'],
+      }],
+      '@semantic-release/gitlab',
+  ],
+  generateNotes: {
+    preset: 'angular',
+    writerOpts: {
+      // Required due to upstream bug preventing all types being displayed.
+      // Bug: https://github.com/conventional-changelog/conventional-changelog/issues/317
+      // Fix: https://github.com/conventional-changelog/conventional-changelog/pull/410
+      transform: (commit, context) => {
+          const issues = []
+
+          commit.notes.forEach(note => {
+              note.title = `BREAKING CHANGES`
+          })
+
+          // NOTE: Any changes here must be reflected in `CONTRIBUTING.md`.
+          if (commit.type === `feat`) {
+              commit.type = `Features`
+          } else if (commit.type === `fix`) {
+              commit.type = `Bug Fixes`
+          } else if (commit.type === `perf`) {
+              commit.type = `Performance Improvements`
+          } else if (commit.type === `revert`) {
+              commit.type = `Reverts`
+          } else if (commit.type === `docs`) {
+              commit.type = `Documentation`
+          } else if (commit.type === `style`) {
+              commit.type = `Styles`
+          } else if (commit.type === `refactor`) {
+              commit.type = `Code Refactoring`
+          } else if (commit.type === `test`) {
+              commit.type = `Tests`
+          } else if (commit.type === `build`) {
+              commit.type = `Build System`
+          // } else if (commit.type === `chore`) {
+          //     commit.type = `Maintenance`
+          } else if (commit.type === `ci`) {
+              commit.type = `Continuous Integration`
+          } else {
+              return
+          }
+
+          if (commit.scope === `*`) {
+              commit.scope = ``
+          }
+
+          if (typeof commit.hash === `string`) {
+              commit.shortHash = commit.hash.substring(0, 7)
+          }
+
+          if (typeof commit.subject === `string`) {
+              let url = context.repository
+                  ? `${context.host}/${context.owner}/${context.repository}`
+                  : context.repoUrl
+              if (url) {
+                  url = `${url}/issues/`
+                  // Issue URLs.
+                  commit.subject = commit.subject.replace(/#([0-9]+)/g, (_, issue) => {
+                      issues.push(issue)
+                      return `[#${issue}](${url}${issue})`
+                  })
+              }
+              if (context.host) {
+                  // User URLs.
+                  commit.subject = commit.subject.replace(/\B@([a-z0-9](?:-?[a-z0-9/]){0,38})/g, (_, username) => {
+                  if (username.includes('/')) {
+                      return `@${username}`
+                  }
+
+                  return `[@${username}](${context.host}/${username})`
+                  })
+              }
+          }
+
+          // remove references that already appear in the subject
+          commit.references = commit.references.filter(reference => {
+              if (issues.indexOf(reference.issue) === -1) {
+                  return true
+              }
+
+              return false
+          })
+
+          return commit
+      },
+    },
+  },
+};