added command patch changelist (fixes #215)

Author: JohnstonCode

CHANGELOG.md

@@ -3,6 +3,7 @@
 ## What's New
 
 * @JohnstonCode Added configuration option to disable update message
+* @JohnstonCode Added command show patch from changelist
 
 # **v1.25.0**
 

package.json

@@ -212,6 +212,11 @@
         "command": "svn.cleanup",
         "title": "Clean up working copy",
         "category": "SVN"
+      },
+      {
+        "command": "svn.patchChangeList",
+        "title": "Show patch from changelist",
+        "category": "SVN"
       }
     ],
     "menus": {
@@ -339,6 +344,10 @@
         {
           "command": "svn.cleanup",
           "when": "config.svn.enabled && scmProvider == svn"
+        },
+        {
+          "command": "svn.patchChangeList",
+          "when": "config.svn.enabled && scmProvider == svn"
         }
       ],
       "scm/sourceControl": [

src/changelistItems.ts

@@ -167,3 +167,33 @@ export async function inputCommitChangelist(repository: Repository) {
 
   return choice;
 }
+
+export function patchChangelistOptions(repository: Repository) {
+  const picks: QuickPickItem[] = [];
+
+  repository.changelists.forEach((group, changelist) => {
+    if (group.resourceStates.length) {
+      picks.push(new ChangeListItem(group));
+    }
+  });
+
+  return picks;
+}
+
+export async function getPatchChangelist(repository: Repository) {
+  const picks: QuickPickItem[] = patchChangelistOptions(repository);
+
+  if (!picks.length) {
+    window.showErrorMessage('No changelists to pick from');
+    return;
+  }
+
+  const selectedChoice: any = await window.showQuickPick(picks, {
+    placeHolder: "Select a changelist"
+  });
+  if (!selectedChoice) {
+    return;
+  }
+
+  return selectedChoice.label;
+}

src/commands.ts

@@ -30,10 +30,9 @@ import { getConflictPickOptions } from "./conflictItems";
 import { applyLineChanges } from "./lineChanges";
 import { IDisposable, hasSupportToRegisterDiffCommand } from "./util";
 import {
-  getChangelistPickOptions,
   inputSwitchChangelist,
-  getCommitChangelistPickOptions,
-  inputCommitChangelist
+  inputCommitChangelist,
+  getPatchChangelist
 } from "./changelistItems";
 import { configuration } from "./helpers/configuration";
 import { selectBranch } from "./branches";
@@ -762,6 +761,47 @@ export class SvnCommands implements IDisposable {
       await this.showDiffPath(repository, files);
     });
   }
+  
+  @command("svn.patchChangeList", { repository: true })
+  async patchChangeList(repository: Repository): Promise<void> {
+    const changelistName = await getPatchChangelist(repository);
+    
+    if (!changelistName) {
+      return;
+    }
+    
+    //@TODO clean up the try catch below copied code from showDiffPatch
+    
+    try {
+      const tempFile = path.join(repository.root, ".svn", "tmp", "svn.patch");
+
+      if (fs.existsSync(tempFile)) {
+        fs.unlinkSync(tempFile);
+      }
+
+      const uri = Uri.file(tempFile).with({
+        scheme: "untitled"
+      });
+
+      const document = await workspace.openTextDocument(uri);
+      const textEditor = await window.showTextDocument(document);
+
+      const content = await repository.patchChangelist(changelistName);
+      await textEditor.edit(e => {
+        // if is opened, clear content
+        e.delete(
+          new Range(
+            new Position(0, 0),
+            new Position(Number.MAX_SAFE_INTEGER, 0)
+          )
+        );
+        e.insert(new Position(0, 0), content);
+      });
+    } catch (error) {
+      console.error(error);
+      window.showErrorMessage("Unable to patch");
+    }
+  }
 
   @command("svn.remove")
   async remove(...resourceStates: SourceControlResourceState[]): Promise<void> {

src/repository.ts

@@ -667,6 +667,10 @@ export class Repository {
   async patch(files: string[]) {
     return await this.run(Operation.Patch, () => this.repository.patch(files));
   }
+  
+  async patchChangelist(changelistName: string) {
+    return await this.run(Operation.Patch, () => this.repository.patchChangelist(changelistName));
+  }
 
   async removeFiles(files: any[], keepLocal: boolean) {
     return await this.run(Operation.Remove, () =>

src/svnRepository.ts

@@ -329,6 +329,12 @@ export class Repository {
     const message = result.stdout;
     return message;
   }
+  
+  async patchChangelist(changelistName: string) {
+    const result = await this.exec(["diff", "--changelist", changelistName]);
+    const message = result.stdout;
+    return message;
+  }
 
   async removeFiles(files: any[], keepLocal: boolean) {
     files = files.map(file => this.removeAbsolutePath(file));