Adds new command to show quick commit info

src/commands/showQuickCommitDetails.ts

@@ -0,0 +1,112 @@
+'use strict';
+import { Iterables } from '../system';
+import { commands, QuickPickOptions, TextEditor, TextEditorEdit, Uri, window } from 'vscode';
+import { EditorCommand } from './commands';
+import { Commands } from '../constants';
+import GitProvider, { GitUri } from '../gitProvider';
+import { Logger } from '../logger';
+import { BackQuickPickItem, CommitQuickPickItem, CompareQuickPickItem, FileQuickPickItem } from './quickPickItems';
+import * as moment from 'moment';
+
+export default class ShowQuickCommitDetailsCommand extends EditorCommand {
+
+    constructor(private git: GitProvider) {
+        super(Commands.ShowQuickCommitDetails);
+    }
+
+    async execute(editor: TextEditor, edit: TextEditorEdit, uri?: Uri, sha?: string) {
+        if (!(uri instanceof Uri)) {
+            if (!editor.document) return undefined;
+            uri = editor.document.uri;
+        }
+
+        const gitUri = GitUri.fromUri(uri, this.git);
+
+        let repoPath = gitUri.repoPath;
+
+        let line = editor.selection.active.line;
+        if (!sha) {
+            const blameline = line - gitUri.offset;
+            if (blameline < 0) return undefined;
+
+            try {
+                const blame = await this.git.getBlameForLine(gitUri.fsPath, blameline, gitUri.sha, gitUri.repoPath);
+                if (!blame) return window.showWarningMessage(`Unable to show commit details. File is probably not under source control`);
+
+                sha = blame.commit.isUncommitted ? blame.commit.previousSha : blame.commit.sha;
+                repoPath = blame.commit.repoPath;
+            }
+            catch (ex) {
+                Logger.error('[GitLens.ShowQuickCommitDetails]', `getBlameForLine(${blameline})`, ex);
+                return window.showErrorMessage(`Unable to show commit details. See output channel for more details`);
+            }
+        }
+
+        try {
+            const log = await this.git.getLogForRepo(repoPath, sha, 0);
+            if (!log) return window.showWarningMessage(`Unable to show commit details`);
+
+            const commit = Iterables.first(log.commits.values());
+            const commitPick = new CommitQuickPickItem(commit, ` \u2014 ${commit.fileName}`);
+            const files = commitPick.commit.fileName
+                .split(', ')
+                .filter(_ => !!_)
+                .map(f => new FileQuickPickItem(commitPick.commit, f));
+
+            const filePick = await window.showQuickPick(files, {
+                matchOnDescription: true,
+                matchOnDetail: true,
+                placeHolder: `${commitPick.commit.sha} \u2022 ${commitPick.commit.author}, ${moment(commitPick.commit.date).fromNow()}`
+            } as QuickPickOptions);
+
+            if (filePick) {
+                // TODO need to make log for file -- go from commit to HEAD so we can get the current filename
+                const log = await this.git.getLogForFile(filePick.uri.fsPath, filePick.sha);
+                if (!log) return window.showWarningMessage(`Unable to open diff`);
+
+                const commit = Iterables.find(log.commits.values(), c => c.sha === commitPick.commit.sha);
+
+                let command: Commands | undefined = Commands.DiffWithWorking;
+                const items: CompareQuickPickItem[] = [
+                    {
+                        label: `Compare with Working Tree`,
+                        description: `\u2022 ${commit.sha}  $(git-compare)  ${commit.fileName}`,
+                        command: Commands.DiffWithWorking
+                    }
+                ];
+
+                if (commit.previousSha) {
+                    items.push({
+                        label: `Compare with Previous Commit`,
+                        description: `\u2022 ${commit.previousSha}  $(git-compare)  ${commit.sha}`,
+                        command: Commands.DiffWithPrevious
+                    });
+                }
+
+                items.push({
+                    label: `go back \u21A9`,
+                    description: null,
+                    command: Commands.ShowQuickCommitDetails
+                } as BackQuickPickItem);
+
+                const comparePick = await window.showQuickPick(items, {
+                    matchOnDescription: true,
+                    placeHolder: `${commit.fileName} \u2022 ${commit.sha} \u2022 ${commit.author}, ${moment(commit.date).fromNow()}`
+                } as QuickPickOptions);
+
+                command = comparePick ? comparePick.command : undefined;
+
+                if (command) {
+                    if (command === Commands.ShowQuickCommitDetails) return commands.executeCommand(command, uri), sha;
+                    return commands.executeCommand(command, commit.uri, commit);
+                }
+            }
+
+            return undefined;
+        }
+        catch (ex) {
+            Logger.error('[GitLens.ShowQuickCommitDetailsCommand]', ex);
+            return window.showErrorMessage(`Unable to show commit details. See output channel for more details`);
+        }
+    }
+}