71 lines
2.0 KiB
JavaScript
71 lines
2.0 KiB
JavaScript
import { commitItemIconMap } from './constants';
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import { languages } from 'monaco-editor';
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import { flatten } from 'lodash';
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const toLowerCase = x => x.toLowerCase();
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const monacoLanguages = languages.getLanguages();
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const monacoExtensions = new Set(
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flatten(monacoLanguages.map(lang => lang.extensions?.map(toLowerCase) || [])),
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);
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const monacoMimetypes = new Set(
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flatten(monacoLanguages.map(lang => lang.mimetypes?.map(toLowerCase) || [])),
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);
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const monacoFilenames = new Set(
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flatten(monacoLanguages.map(lang => lang.filenames?.map(toLowerCase) || [])),
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);
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const KNOWN_TYPES = [
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{
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isText: false,
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isMatch(mimeType) {
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return mimeType.toLowerCase().includes('image/');
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},
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},
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{
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isText: true,
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isMatch(mimeType) {
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return mimeType.toLowerCase().includes('text/');
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},
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},
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{
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isText: true,
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isMatch(mimeType, fileName) {
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const fileExtension = fileName.includes('.') ? `.${fileName.split('.').pop()}` : '';
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return (
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monacoExtensions.has(fileExtension.toLowerCase()) ||
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monacoMimetypes.has(mimeType.toLowerCase()) ||
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monacoFilenames.has(fileName.toLowerCase())
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);
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},
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},
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];
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export function isTextFile(content, mimeType, fileName) {
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const knownType = KNOWN_TYPES.find(type => type.isMatch(mimeType, fileName));
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if (knownType) return knownType.isText;
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// does the string contain ascii characters only (ranges from space to tilde, tabs and new lines)
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const asciiRegex = /^[ -~\t\n\r]+$/;
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// for unknown types, determine the type by evaluating the file contents
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return asciiRegex.test(content);
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}
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export const getCommitIconMap = file => {
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if (file.deleted) {
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return commitItemIconMap.deleted;
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} else if (file.tempFile && !file.prevPath) {
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return commitItemIconMap.addition;
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}
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return commitItemIconMap.modified;
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};
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export const createPathWithExt = p => {
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const ext = p.lastIndexOf('.') >= 0 ? p.substring(p.lastIndexOf('.') + 1) : '';
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return `${p.substring(1, p.lastIndexOf('.') + 1 || p.length)}${ext || '.js'}`;
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};
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