feat(cli): add new --changelog option

lib/cli.js

@@ -20,6 +20,7 @@ const helpText = `Release It! v${pkg.version}
      --only-version      Prompt only for version, no further interaction
   -v --version           Print release-it version number
      --release-version   Print version number to be released
+     --changelog         Print changelog for the version to be released
   -V --verbose           Verbose output (user hooks output)
   -VV                    Extra verbose output (also internal commands output)
 

lib/config.js

@@ -109,7 +109,7 @@ class Config {
   }
 
   get isCI() {
-    return Boolean(this.options.ci) || this.isReleaseVersion;
+    return Boolean(this.options.ci) || this.isReleaseVersion || this.isChangelog;
   }
 
   get isPromptOnlyVersion() {
@@ -119,6 +119,10 @@ class Config {
   get isReleaseVersion() {
     return Boolean(this.options['release-version']);
   }
+
+  get isChangelog() {
+    return Boolean(this.options['changelog']);
+  }
 }
 
 export default Config;

lib/index.js

@@ -78,7 +78,7 @@ const runTasks = async (opts, di) => {
     const action = config.isIncrement ? 'release' : 'update';
     const suffix = version && config.isIncrement ? `${latestVersion}...${version}` : `currently at ${latestVersion}`;
 
-    if (!config.isReleaseVersion) {
+    if (!config.isReleaseVersion && !config.isChangelog) {
       log.obtrusive(`🚀 Let's ${action} ${name} (${suffix})`);
 
       log.preview({ title: 'changelog', text: changelog });
@@ -93,6 +93,11 @@ const runTasks = async (opts, di) => {
       process.exit(0);
     }
 
+    if (config.isChangelog) {
+      console.log(changelog);
+      process.exit(0);
+    }
+
     if (version) {
       config.setContext(parseVersion(version));