feat: fetch tags before versioning (#461)

docs/configuration/overview.mdx

@@ -333,3 +333,14 @@ Whether to generate and print a link to the prefilled release creation page for
 each package after versioning. Defaults to `false`.
 
 [glob]: https://docs.python.org/3/library/glob.html
+
+### `command/version/fetchTags`
+
+Whether to fetch tags from the `origin` remote before versioning. Defaults to
+`true`.
+
+```yaml
+command:
+  version:
+    fetchTags: false
+```

packages/melos/lib/src/commands/version.dart

@@ -114,6 +114,10 @@ mixin _VersionMixin on _RunMixin {
 
     final commitMessageTemplate = Template(message, delimiters: '{ }');
 
+    if (config.commands.version.fetchTags) {
+      await gitFetchTags(workingDirectory: workspace.path, logger: logger);
+    }
+
     final packageCommits = await _getPackageCommits(
       workspace,
       versionPrivatePackages: versionPrivatePackages,

packages/melos/lib/src/common/git.dart

@@ -224,6 +224,17 @@ Future<String?> gitLatestTagForPackage(
   return tags.first;
 }
 
+Future<void> gitFetchTags({
+  required String workingDirectory,
+  required MelosLogger logger,
+}) async {
+  await gitExecuteCommand(
+    arguments: ['fetch', '--tags'],
+    workingDirectory: workingDirectory,
+    logger: logger,
+  );
+}
+
 /// Stage files matching the specified file pattern for committing.
 Future<void> gitAdd(
   String filePattern, {

packages/melos/lib/src/workspace_configs.dart

@@ -395,6 +395,7 @@ class VersionCommandConfigs {
     this.updateGitTagRefs = false,
     this.releaseUrl = false,
     List<AggregateChangelogConfig>? aggregateChangelogs,
+    this.fetchTags = true,
   }) : _aggregateChangelogs = aggregateChangelogs;
 
   factory VersionCommandConfigs.fromYaml(
@@ -489,6 +490,12 @@ class VersionCommandConfigs {
       aggregateChangelogs.add(changelogConfig);
     }
 
+    final fetchTags = assertKeyIsA<bool?>(
+      key: 'fetchTags',
+      map: yaml,
+      path: 'command/version',
+    );
+
     return VersionCommandConfigs(
       branch: branch,
       message: message,
@@ -498,6 +505,7 @@ class VersionCommandConfigs {
       updateGitTagRefs: updateGitTagRefs ?? false,
       releaseUrl: releaseUrl ?? false,
       aggregateChangelogs: aggregateChangelogs,
+      fetchTags: fetchTags ?? true,
     );
   }
 
@@ -534,6 +542,9 @@ class VersionCommandConfigs {
 
   final List<AggregateChangelogConfig>? _aggregateChangelogs;
 
+  /// Whether to fetch tags from the `origin` remote before versioning.
+  final bool fetchTags;
+
   Map<String, Object?> toJson() {
     return {
       if (branch != null) 'branch': branch,
@@ -544,6 +555,7 @@ class VersionCommandConfigs {
       'updateGitTagRefs': updateGitTagRefs,
       'aggregateChangelogs':
           aggregateChangelogs.map((config) => config.toJson()).toList(),
+      'fetchTags': fetchTags,
     };
   }
 
@@ -559,7 +571,8 @@ class VersionCommandConfigs {
       other.updateGitTagRefs == updateGitTagRefs &&
       other.releaseUrl == releaseUrl &&
       const DeepCollectionEquality()
-          .equals(other.aggregateChangelogs, aggregateChangelogs);
+          .equals(other.aggregateChangelogs, aggregateChangelogs) &&
+      other.fetchTags == fetchTags;
 
   @override
   int get hashCode =>
@@ -571,7 +584,8 @@ class VersionCommandConfigs {
       linkToCommits.hashCode ^
       updateGitTagRefs.hashCode ^
       releaseUrl.hashCode ^
-      const DeepCollectionEquality().hash(aggregateChangelogs);
+      const DeepCollectionEquality().hash(aggregateChangelogs) ^
+      fetchTags.hashCode;
 
   @override
   String toString() {
@@ -585,6 +599,7 @@ VersionCommandConfigs(
   updateGitTagRefs: $updateGitTagRefs,
   releaseUrl: $releaseUrl,
   aggregateChangelogs: $aggregateChangelogs,
+  fetchTags: $fetchTags,
 )''';
   }
 }