fix: improve tag detection

Author: antfu

src/cli.ts

@@ -6,6 +6,7 @@ const args = minimist(process.argv.slice(2), {
   boolean: [
     'draft',
     'prerelease',
+    'dry',
   ],
   string: [
     'token',

src/git.ts

@@ -9,3 +9,13 @@ export async function getGitHubRepo() {
   return `${match[1]}/${match[2]}`
 }
 
+export async function getCurrentGitBranch() {
+  return await execCommand('git', ['tag', '--points-at', 'HEAD']) || await execCommand('git', ['rev-parse', '--abbrev-ref', 'HEAD'])
+}
+
+async function execCommand(cmd: string, args: string[]) {
+  const { execa } = await import('execa')
+  const res = await execa(cmd, args)
+  return res.stdout
+}
+

src/index.ts

@@ -1,8 +1,9 @@
+/* eslint-disable no-console */
 import { fetch } from 'ohmyfetch'
-import { getCurrentGitBranch, getGitDiff, getLastGitTag, parseCommits } from 'changelogen'
+import { getGitDiff, getLastGitTag, parseCommits } from 'changelogen'
 import semver from 'semver'
 import type { ChangelogOptions } from './types'
-import { getGitHubRepo } from './git'
+import { getCurrentGitBranch, getGitHubRepo } from './git'
 import { generateMarkdown } from './markdown'
 
 export default async function changelogithub(
@@ -24,9 +25,20 @@ export default async function changelogithub(
 
   const rawCommits = await getGitDiff(config.from, config.to)
   const commits = parseCommits(rawCommits, config)
-  const md = generateMarkdown(commits, config)
+  const filtered = commits.filter(c => config.types[c.type])
 
-  await sendRelease(config, md)
+  if (!commits.length) {
+    console.log('No commits')
+    process.exitCode = 1
+    return
+  }
+
+  const md = generateMarkdown(filtered, config)
+
+  if (config.dry)
+    console.log(md)
+  else
+    await sendRelease(config, md)
 }
 
 async function sendRelease(

src/markdown.ts

@@ -38,8 +38,7 @@ export function generateMarkdown(commits: GitCommit[], config: ChangelogenOption
 
   const url = `https://github.com/${config.github}/compare/${config.from}...${config.to}`
 
-  markdown += '\n\n----\n\n'
-  markdown += `[Changes on GitHub](${url})\n`
+  markdown += `\n\n> [Changes on GitHub](${url})\n`
 
   return markdown.trim()
 }

src/types.ts

@@ -19,6 +19,7 @@ export interface ChangelogenOptions {
 export interface ChangelogOptions extends ChangelogenOptions {
   draft?: boolean
   prerelease?: boolean
+  dry?: boolean
   name?: string
   token: string
 }