feat: suggest previously used scopes

The output of the 'git log' command is parsed to extract the various
change scopes.

Closes #7

src/com/leroymerlin/commit/Command.java

@@ -0,0 +1,63 @@
+package com.leroymerlin.commit;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.InputStreamReader;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+import java.util.stream.Collectors;
+
+class Command {
+ private final File workingDirectory;
+ private final String command;
+
+ Command(File workingDirectory, String command) {
+ this.workingDirectory = workingDirectory;
+ this.command = command;
+ }
+
+ static class Result {
+ static Result ERROR = new Result(-1);
+
+ private final int exitValue;
+ private final List<String> output;
+
+ Result(int exitValue) {
+ this.exitValue = exitValue;
+ this.output = null;
+ }
+
+ Result(int exitValue, List<String> output) {
+ this.exitValue = exitValue;
+ this.output = output;
+ }
+
+ boolean isSuccess() {
+ return exitValue == 0;
+ }
+
+ List<String> getOutput() {
+ return output;
+ }
+ }
+
+ Result execute() {
+ try {
+ Process process = new ProcessBuilder("/bin/sh", "-c", this.command)
+ .directory(workingDirectory)
+ .start();
+ BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()));
+
+ List<String> output = reader.lines().collect(Collectors.toList());
+
+ process.waitFor(2, TimeUnit.SECONDS);
+ process.destroy();
+ process.waitFor();
+
+ return new Result(process.exitValue(), output);
+ } catch (Exception e) {
+ return Result.ERROR;
+ }
+ }
+
+}

src/com/leroymerlin/commit/CommitDialog.java

@@ -15,7 +15,7 @@ public class CommitDialog extends DialogWrapper {
 
  CommitDialog(@Nullable Project project) {
  super(project);
- panel = new CommitPanel(this);
+ panel = new CommitPanel(project);
  setTitle("Commit");
  setOKButtonText("OK");
  init();

src/com/leroymerlin/commit/CommitPanel.form

@@ -29,13 +29,15 @@
  <text value="Scope of this change"/>
  </properties>
  </component>
- <component id="cbe5c" class="javax.swing.JTextField" binding="changeScope">
+ <component id="549f7" class="javax.swing.JComboBox" binding="changeScope">
  <constraints>
  <grid row="1" column="1" row-span="1" col-span="2" vsize-policy="0" hsize-policy="6" anchor="8" fill="1" indent="0" use-parent-layout="false">
  <preferred-size width="150" height="-1"/>
  </grid>
  </constraints>
- <properties/>
+ <properties>
+ <editable value="true"/>
+ </properties>
  </component>
  <component id="19a59" class="javax.swing.JLabel">
  <constraints>

src/com/leroymerlin/commit/CommitPanel.java

@@ -1,25 +1,32 @@
 package com.leroymerlin.commit;
 
-import com.intellij.openapi.ui.DialogWrapper;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.vfs.VfsUtil;
 
 import javax.swing.*;
+import java.io.File;
 
 /**
  * @author Damien Arrachequesne
  */
 public class CommitPanel {
  private JPanel mainPanel;
  private JComboBox changeType;
- private JTextField changeScope;
+ private JComboBox changeScope;
  private JTextField shortDescription;
  private JTextArea longDescription;
  private JTextField closedIssues;
  private JTextField breakingChanges;
 
- CommitPanel(DialogWrapper dialog) {
+ CommitPanel(Project project) {
  for (ChangeType type : ChangeType.values()) {
  changeType.addItem(type);
  }
+ File workingDirectory = VfsUtil.virtualToIoFile(project.getBaseDir());
+ Command.Result result = new Command(workingDirectory, "git log --all --format=%s | grep -Eo '^[a-z]+(\\(.*\\)):.*$' | sed 's/^.*(\\(.*\\)):.*$/\\1/' | sort -n | uniq").execute();
+ if (result.isSuccess()) {
+ result.getOutput().forEach(changeScope::addItem);
+ }
  }
 
  JPanel getMainPanel() {
@@ -29,7 +36,7 @@ JPanel getMainPanel() {
  CommitMessage getCommitMessage() {
  return new CommitMessage(
  (ChangeType) changeType.getSelectedItem(),
- changeScope.getText().trim(),
+ (String) changeScope.getSelectedItem(),
  shortDescription.getText().trim(),
  longDescription.getText().trim(),
  closedIssues.getText().trim(),