public async endEdit()

in BuildTasks/PublishExtension/vsixeditor.ts [162:200]
35 lines of code
5 McCabe index (conditional complexity)

    public async endEdit(): Promise<string> {
        this.validateEditMode();

        if (!this.hasEdits()) { return Q(this.inputFile); }

        temp.track();

        return new Promise<string>((resolve) => {
                temp.mkdir("vsixeditor", (ex, dirPath) => { resolve(dirPath); });
            })
            .then((dirPath) => {
                tl.debug("Extracting files to " + dirPath);

                this.extractArchive(this.inputFile, dirPath);
                return dirPath;
            })
            .then(async dirPath => {
                if (this.versionNumber && this.updateTasksVersion || this.updateTasksId) {
                    tl.debug("Look for build tasks manifest");
                    const extensionManifest = path.join(dirPath, "extension.vsomanifest");
                    await common.checkUpdateTasksManifests(extensionManifest);
                }
                return dirPath;
            })
            .then(dirPath => {
                tl.debug("Editing VSIX manifest");
                return this.editVsixManifest(dirPath).then((manifestData: ManifestData) => manifestData);
            })
            .then((manifestData: ManifestData) => {
                manifestData.outputFileName = manifestData.createOutputFilePath(this.outputPath);
                return manifestData;
            })
            .then((manifestData: ManifestData) => {
                tl.debug(`Creating final archive file at ${this.outputPath}`);
                this.createArchive(manifestData.dirPath, manifestData.outputFileName);
                tl.debug("Final archive file created");
                return Promise.resolve(manifestData.outputFileName);
            }).catch(err => { return Promise.reject(err); });
    }