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283 linhas
7.9 KiB
283 linhas
7.9 KiB
'use strict';
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import {
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CancellationToken,
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DecorationOptions,
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Disposable,
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Hover,
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languages,
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Position,
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Range,
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Selection,
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TextDocument,
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TextEditor,
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TextEditorDecorationType,
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TextEditorRevealType,
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} from 'vscode';
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import { AnnotationProviderBase } from './annotationProvider';
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import { FileAnnotationType } from '../configuration';
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import { Container } from '../container';
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import { Decorations } from './fileAnnotationController';
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import { GitDiff, GitLogCommit } from '../git/git';
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import { Hovers } from '../hovers/hovers';
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import { Logger } from '../logger';
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import { log, Strings } from '../system';
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import { GitDocumentState, TrackedDocument } from '../trackers/gitDocumentTracker';
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export class GutterChangesAnnotationProvider extends AnnotationProviderBase {
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private state: { commit: GitLogCommit | undefined; diffs: GitDiff[] } | undefined;
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private hoverProviderDisposable: Disposable | undefined;
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constructor(editor: TextEditor, trackedDocument: TrackedDocument<GitDocumentState>) {
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super(editor, trackedDocument);
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}
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clear() {
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this.state = undefined;
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if (this.hoverProviderDisposable != null) {
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this.hoverProviderDisposable.dispose();
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this.hoverProviderDisposable = undefined;
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}
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super.clear();
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}
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selection(_shaOrLine?: string | number): Promise<void> {
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return Promise.resolve();
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}
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validate(): Promise<boolean> {
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return Promise.resolve(true);
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}
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@log()
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async onProvideAnnotation(shaOrLine?: string | number): Promise<boolean> {
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const cc = Logger.getCorrelationContext();
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this.annotationType = FileAnnotationType.Changes;
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let ref1 = this.trackedDocument.uri.sha;
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let ref2;
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if (typeof shaOrLine === 'string') {
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if (shaOrLine !== this.trackedDocument.uri.sha) {
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ref2 = `${shaOrLine}^`;
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}
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}
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let commit: GitLogCommit | undefined;
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let localChanges = ref1 == null && ref2 == null;
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if (localChanges) {
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let ref = await Container.git.getOldestUnpushedRefForFile(
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this.trackedDocument.uri.repoPath!,
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this.trackedDocument.uri.fsPath,
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);
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if (ref != null) {
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ref = `${ref}^`;
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commit = await Container.git.getCommitForFile(
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this.trackedDocument.uri.repoPath,
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this.trackedDocument.uri.fsPath,
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{ ref: ref },
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);
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if (commit != null) {
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if (ref2 != null) {
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ref2 = ref;
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} else {
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ref1 = ref;
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ref2 = '';
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}
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} else {
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localChanges = false;
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}
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} else {
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const status = await Container.git.getStatusForFile(
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this.trackedDocument.uri.repoPath!,
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this.trackedDocument.uri.fsPath,
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);
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const commits = await status?.toPsuedoCommits();
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if (commits?.length) {
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commit = await Container.git.getCommitForFile(
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this.trackedDocument.uri.repoPath,
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this.trackedDocument.uri.fsPath,
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);
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ref1 = 'HEAD';
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} else if (this.trackedDocument.dirty) {
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ref1 = 'HEAD';
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} else {
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localChanges = false;
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}
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}
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}
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if (!localChanges) {
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commit = await Container.git.getCommitForFile(
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this.trackedDocument.uri.repoPath,
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this.trackedDocument.uri.fsPath,
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{
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ref: ref2 ?? ref1,
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},
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);
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if (commit == null) return false;
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if (ref2 != null) {
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ref2 = commit.ref;
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} else {
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ref1 = `${commit.ref}^`;
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ref2 = commit.ref;
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}
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}
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const diffs = (
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await Promise.all(
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ref2 == null && this.editor.document.isDirty
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? [
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Container.git.getDiffForFileContents(
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this.trackedDocument.uri,
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ref1!,
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this.editor.document.getText(),
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),
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Container.git.getDiffForFile(this.trackedDocument.uri, ref1, ref2),
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]
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: [Container.git.getDiffForFile(this.trackedDocument.uri, ref1, ref2)],
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)
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).filter(<T>(d?: T): d is T => Boolean(d));
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if (!diffs?.length) return false;
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let start = process.hrtime();
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const decorationsMap = new Map<
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string,
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{ decorationType: TextEditorDecorationType; rangesOrOptions: DecorationOptions[] }
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>();
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let selection: Selection | undefined;
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for (const diff of diffs) {
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for (const hunk of diff.hunks) {
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// Subtract 2 because editor lines are 0-based and we will be adding 1 in the first iteration of the loop
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let count = Math.max(hunk.current.position.start - 2, -1);
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let index = -1;
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for (const hunkLine of hunk.lines) {
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index++;
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count++;
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if (hunkLine.current?.state === 'unchanged') continue;
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const range = this.editor.document.validateRange(
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new Range(new Position(count, 0), new Position(count, Number.MAX_SAFE_INTEGER)),
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);
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if (selection == null) {
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selection = new Selection(range.start, range.end);
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}
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let state;
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if (hunkLine.current == null) {
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const previous = hunk.lines[index - 1];
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if (hunkLine.previous != null && (previous == null || previous.current != null)) {
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// Check if there are more deleted lines than added lines show a deleted indicator
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if (hunk.previous.count > hunk.current.count) {
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state = 'removed';
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} else {
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continue;
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}
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} else {
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continue;
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}
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} else if (hunkLine.current?.state === 'added') {
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if (hunkLine.previous?.state === 'removed') {
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state = 'changed';
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} else {
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state = 'added';
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}
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} else if (hunkLine?.current.state === 'removed') {
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// Check if there are more deleted lines than added lines show a deleted indicator
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if (hunk.previous.count > hunk.current.count) {
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state = 'removed';
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} else {
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continue;
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}
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} else {
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state = 'changed';
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}
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let decoration = decorationsMap.get(state);
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if (decoration == null) {
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decoration = {
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decorationType: (state === 'added'
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? Decorations.changesLineAddedAnnotation
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: state === 'removed'
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? Decorations.changesLineDeletedAnnotation
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: Decorations.changesLineChangedAnnotation)!,
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rangesOrOptions: [{ range: range }],
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};
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decorationsMap.set(state, decoration);
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} else {
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decoration.rangesOrOptions.push({ range: range });
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}
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}
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}
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}
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Logger.log(cc, `${Strings.getDurationMilliseconds(start)} ms to compute recent changes annotations`);
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if (decorationsMap.size) {
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start = process.hrtime();
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this.setDecorations([...decorationsMap.values()]);
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Logger.log(cc, `${Strings.getDurationMilliseconds(start)} ms to apply recent changes annotations`);
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if (selection != null) {
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this.editor.selection = selection;
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this.editor.revealRange(selection, TextEditorRevealType.InCenterIfOutsideViewport);
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}
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}
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this.state = { commit: commit, diffs: diffs };
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this.registerHoverProvider();
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return true;
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}
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registerHoverProvider() {
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if (!Container.config.hovers.enabled || !Container.config.hovers.annotations.enabled) {
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return;
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}
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this.hoverProviderDisposable = languages.registerHoverProvider(
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{ pattern: this.document.uri.fsPath },
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{
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provideHover: (document, position, token) => this.provideHover(document, position, token),
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},
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);
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}
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provideHover(document: TextDocument, position: Position, _token: CancellationToken): Hover | undefined {
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if (this.state == null) return undefined;
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if (Container.config.hovers.annotations.over !== 'line' && position.character !== 0) return undefined;
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const { commit, diffs } = this.state;
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for (const diff of diffs) {
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for (const hunk of diff.hunks) {
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// If we have a "mixed" diff hunk, check if we have more deleted lines than added, to include a trailing line for the deleted indicator
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const hasMoreDeletedLines = hunk.state === 'changed' && hunk.previous.count > hunk.current.count;
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if (
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position.line >= hunk.current.position.start - 1 &&
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position.line <= hunk.current.position.end - (hasMoreDeletedLines ? 0 : 1)
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) {
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return new Hover(
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Hovers.localChangesMessage(commit, this.trackedDocument.uri, position.line, hunk),
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document.validateRange(
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new Range(
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hunk.current.position.start - 1,
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0,
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hunk.current.position.end - (hasMoreDeletedLines ? 0 : 1),
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Number.MAX_SAFE_INTEGER,
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),
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),
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);
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}
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}
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}
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return undefined;
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}
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}
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