function convertTheme()

in generators/app/generate-colortheme.js [139:188]
48 lines of code
13 McCabe index (conditional complexity)

function convertTheme(location, extensionConfig, inline, generator) {
    if (!location) {
        extensionConfig.tmThemeFileName = '';
        extensionConfig.tmThemeContent = '';
    } else if (location.match(/\w*:\/\//)) {
        // load from url
        return request.xhr({ url: location }).then(r => {
            if (r.status == 200) {
                var tmThemeFileName = null;
                if (!inline) {
                    var contentDisposition = r.headers && r.headers['content-disposition'];
                    if (contentDisposition) {
                        var fileNameMatch = contentDisposition.match(/filename="([^"]*)/);
                        if (fileNameMatch) {
                            tmThemeFileName = fileNameMatch[1];
                        }
                    }
                    if (!tmThemeFileName) {
                        var lastSlash = location.lastIndexOf('/');
                        if (lastSlash) {
                            tmThemeFileName = location.substr(lastSlash + 1);
                        } else {
                            tmThemeFileName = 'theme.tmTheme';
                        }
                    }
                }
                return processContent(extensionConfig, tmThemeFileName, r.responseText, generator);
            } else {
                return Promise.reject("Problems loading theme: HTTP status " + r.status);
            }
        });
    } else {
        // load from disk
        var body = null;
        try {
            body = fs.readFileSync(location);
        } catch (error) {
            return Promise.reject("Problems loading theme: " + error.message);
        }
        if (body) {
            var fileName = null;
            if (!inline) {
                fileName = path.basename(location);
            }
            return processContent(extensionConfig, fileName, body.toString(), generator);
        } else {
            return Promise.reject("Problems loading theme: Not found");
        }
    }
}