feat: filter commit by scope to calculated next version

Author: Zorin95670

README.md

@@ -14,8 +14,18 @@ This plugin provides two main commands:
 Generates or updates a `CHANGELOG.md` file using Git history.
 
 * Supports a `dryRun` option to preview the next changelog without writing to disk.
+* Supports a scope option to include only commits containing a specific scope.
+
+```bash
+mvn io.github.zorin95670:semantic-version:changelog -DtagPrefix=plugin-a@ -Dscope=plugin-a
+# Example: 
+# chore(plugin-a): Test -> Included
+# chore(plugin-b): Test -> Ignored
+```
+
 * Supports a `tagPrefix` option to filter Git tags by prefix when generating the changelog (e.g., only include tags like `[email protected]`). Default value is `v`
 
+
 ```bash
 mvn io.github.zorin95670:semantic-version:changelog -DtagPrefix=plugin-a@
 ```
@@ -36,7 +46,7 @@ Performs the following operations:
 * Creates a Git tag for the new release with the specified prefix.
 
 ```bash
-mvn io.github.zorin95670:semantic-version:release -DtagPrefix=plugin-a@
+mvn io.github.zorin95670:semantic-version:release -DtagPrefix=plugin-a@ -Dscope=plugin-a
 ```
 
 When `tagPrefix` is specified:
@@ -45,6 +55,11 @@ When `tagPrefix` is specified:
 * The generated tag will also include the prefix (e.g., `[email protected]`).
 * Default value is `v` 
 
+When `scope` is specified:
+
+* Only commits that include the scope `(plugin-a)` will be considered for version bumping and changelog generation.
+* This is useful for monorepos or multi-module projects where only a subset of commits should affect a specific release.
+
 > ℹ️ After running the `release` goal, make sure to **push the commit and the tag** manually:
 
 ```bash

src/main/java/io/github/zorin95670/semver/GenerateChangelogMojo.java

@@ -16,6 +16,9 @@ public class GenerateChangelogMojo extends AbstractMojo {
     @Parameter(property = "tagPrefix", defaultValue = "v")
     private String tagPrefix;
 
+    @Parameter(property = "scope")
+    private String scope;
+
     @Parameter(property = "dryRun", defaultValue = "false")
     private boolean dryRun;
 
@@ -30,7 +33,7 @@ public void execute() throws MojoExecutionException {
 
         changelogService.generateFromBeginning(
             gitService.getUrl(),
-            gitService.getCommitsFrom(null),
+            gitService.getCommitsFrom(null, scope),
             gitService.getAllTags(null, tagPrefix),
             dryRun,
             tagPrefix

src/main/java/io/github/zorin95670/semver/ReleaseMojo.java

@@ -19,6 +19,9 @@ public class ReleaseMojo extends AbstractMojo {
     @Parameter(property = "tagPrefix", defaultValue = "v")
     private String tagPrefix;
 
+    @Parameter(property = "scope")
+    private String scope;
+
     @Parameter(defaultValue = "${project}", readonly = true)
     private MavenProject project;
 
@@ -31,7 +34,7 @@ public void execute() throws MojoExecutionException {
         ChangelogService changelogService = new ChangelogService(basedir);
 
         var lastTag = gitService.getLastTag(tagPrefix).orElse(null);
-        var commits = gitService.getCommitsFrom(lastTag);
+        var commits = gitService.getCommitsFrom(lastTag, scope);
         var opt = gitService.getNewTagName(commits, lastTag, tagPrefix);
 
         if (opt.isEmpty()) {
@@ -47,7 +50,7 @@ public void execute() throws MojoExecutionException {
         gitService.tag(nextTag);
         changelogService.generateFromBeginning(
             gitService.getUrl(),
-            gitService.getCommitsFrom(null),
+            gitService.getCommitsFrom(null, scope),
             gitService.getAllTags(null, tagPrefix),
             false,
             tagPrefix

src/main/java/io/github/zorin95670/semver/service/GitService.java

@@ -20,6 +20,7 @@
 import java.io.IOException;
 import java.net.URISyntaxException;
 import java.util.*;
+import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 import static org.eclipse.jgit.lib.Constants.R_TAGS;
@@ -153,8 +154,9 @@ public Optional<RevTag> getLastTag(String tagPrefix) {
         }
     }
 
-    public List<RevCommit> getCommitsFrom(RevTag origin) {
+    public List<RevCommit> getCommitsFrom(RevTag origin, String scope) {
         List<RevCommit> commits = new ArrayList<>();
+        var scopePattern = Pattern.compile("^\\w+\\(" + Pattern.quote(scope) + "\\):");
 
         try (RevWalk revWalk = new RevWalk(repository)) {
             RevCommit head = revWalk.parseCommit(repository.resolve("HEAD"));
@@ -172,7 +174,10 @@ public List<RevCommit> getCommitsFrom(RevTag origin) {
                 if (stopCommit != null && commit.equals(stopCommit)) {
                     break;
                 }
-                commits.add(commit);
+
+                if (scope.isEmpty() || scopePattern.matcher(commit.getShortMessage()).matches()) {
+                    commits.add(commit);
+                }
             }
 
         } catch (IOException e) {
@@ -222,7 +227,7 @@ public Optional<String> getNewTagName(List<RevCommit> commits, RevTag lastTag, S
             // Exemple header : feat!: message, fix(scope): message
             // Regex pour extraire type et "!" :
             // ^(\w+)(!)?(\(.+\))?: .+
-            java.util.regex.Matcher matcher = java.util.regex.Pattern.compile("^(\\w+)(!)?(\\(.+\\))?:").matcher(header);
+            Matcher matcher = Pattern.compile("^(\\w+)(!)?(\\(.+\\))?:").matcher(header);
 
             if (matcher.find()) {
                 String type = matcher.group(1);