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160 lines
6.0 KiB
160 lines
6.0 KiB
'use strict';
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import { Objects } from './system';
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import { Disposable, ExtensionContext, StatusBarAlignment, StatusBarItem, TextDocument, TextEditor, TextEditorSelectionChangeEvent, window, workspace } from 'vscode';
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import { TextDocumentComparer } from './comparers';
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import { IConfig, StatusBarCommand } from './configuration';
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import GitProvider, { GitCommit, GitUri, IGitBlame } from './gitProvider';
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import * as moment from 'moment';
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export default class BlameStatusBarController extends Disposable {
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private _blame: Promise<IGitBlame> | undefined;
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private _config: IConfig;
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private _disposable: Disposable;
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private _document: TextDocument | undefined;
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private _statusBarItem: StatusBarItem | undefined;
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private _statusBarDisposable: Disposable | undefined;
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private _uri: GitUri;
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private _useCaching: boolean;
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constructor(context: ExtensionContext, private git: GitProvider) {
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super(() => this.dispose());
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this._onConfigure();
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const subscriptions: Disposable[] = [];
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subscriptions.push(workspace.onDidChangeConfiguration(this._onConfigure, this));
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this._disposable = Disposable.from(...subscriptions);
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}
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dispose() {
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this._statusBarDisposable && this._statusBarDisposable.dispose();
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this._statusBarItem && this._statusBarItem.dispose();
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this._disposable && this._disposable.dispose();
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}
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private _onConfigure() {
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const config = workspace.getConfiguration('').get<IConfig>('gitlens');
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if (!Objects.areEquivalent(config.statusBar, this._config && this._config.statusBar)) {
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this._statusBarDisposable && this._statusBarDisposable.dispose();
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this._statusBarItem && this._statusBarItem.dispose();
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if (config.statusBar.enabled) {
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this._statusBarItem = window.createStatusBarItem(StatusBarAlignment.Right, 1000);
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switch (config.statusBar.command) {
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case StatusBarCommand.ToggleCodeLens:
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if (config.codeLens.visibility !== 'ondemand') {
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config.statusBar.command = StatusBarCommand.BlameAnnotate;
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}
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break;
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}
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this._statusBarItem.command = config.statusBar.command;
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const subscriptions: Disposable[] = [];
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subscriptions.push(window.onDidChangeActiveTextEditor(this._onActiveTextEditorChanged, this));
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subscriptions.push(window.onDidChangeTextEditorSelection(this._onActiveSelectionChanged, this));
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this._statusBarDisposable = Disposable.from(...subscriptions);
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}
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else {
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this._statusBarDisposable = undefined;
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this._statusBarItem = undefined;
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}
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}
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this._config = config;
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this._onActiveTextEditorChanged(window.activeTextEditor);
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}
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private async _onActiveTextEditorChanged(e: TextEditor): Promise<void> {
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if (!e || !e.document || e.document.isUntitled || (e.viewColumn === undefined && !this.git.hasGitUriForFile(e))) {
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this.clear();
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return;
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}
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this._document = e.document;
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this._uri = GitUri.fromUri(this._document.uri, this.git);
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const maxLines = this._config.advanced.caching.statusBar.maxLines;
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this._useCaching = this._config.advanced.caching.enabled && (maxLines <= 0 || this._document.lineCount <= maxLines);
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if (this._useCaching) {
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this._blame = this.git.getBlameForFile(this._uri.fsPath, this._uri.sha, this._uri.repoPath);
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}
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else {
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this._blame = undefined;
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}
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return this._showBlame(e.selection.active.line);
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}
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private async _onActiveSelectionChanged(e: TextEditorSelectionChangeEvent): Promise<void> {
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if (!TextDocumentComparer.equals(this._document, e.textEditor && e.textEditor.document)) return;
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return this._showBlame(e.selections[0].active.line);
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}
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private async _showBlame(line: number) {
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line = line - this._uri.offset;
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let commit: GitCommit;
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if (line >= 0) {
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if (this._useCaching) {
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const blame = await this._blame;
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if (!blame || !blame.lines.length) {
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this.clear();
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return;
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}
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const sha = blame.lines[line].sha;
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commit = blame.commits.get(sha);
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}
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else {
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const blameLine = await this.git.getBlameForLine(this._uri.fsPath, line, this._uri.sha, this._uri.repoPath);
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commit = blameLine && blameLine.commit;
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}
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}
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if (commit) {
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this.show(commit);
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}
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else {
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this.clear();
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}
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}
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clear() {
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this._statusBarItem && this._statusBarItem.hide();
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this._document = undefined;
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this._blame = undefined;
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}
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show(commit: GitCommit) {
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this._statusBarItem.text = `$(git-commit) ${commit.author}, ${moment(commit.date).fromNow()}`;
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switch (this._config.statusBar.command) {
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case StatusBarCommand.BlameAnnotate:
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this._statusBarItem.tooltip = 'Toggle Blame Annotations';
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break;
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case StatusBarCommand.ShowBlameHistory:
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this._statusBarItem.tooltip = 'Open Blame History';
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break;
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case StatusBarCommand.ShowFileHistory:
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this._statusBarItem.tooltip = 'Open File History';
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break;
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case StatusBarCommand.DiffWithPrevious:
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this._statusBarItem.tooltip = 'Compare to Previous Commit';
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break;
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case StatusBarCommand.ToggleCodeLens:
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this._statusBarItem.tooltip = 'Toggle Blame CodeLens';
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break;
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case StatusBarCommand.ShowQuickFileHistory:
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this._statusBarItem.tooltip = 'View Git File History';
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break;
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}
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this._statusBarItem.show();
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}
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}
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