148 lines
15 KiB
JavaScript
148 lines
15 KiB
JavaScript
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/*istanbul ignore start*/'use strict';
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exports.__esModule = true;
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exports. /*istanbul ignore end*/parsePatch = parsePatch;
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function parsePatch(uniDiff) {
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/*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
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delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
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list = [],
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i = 0;
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function parseIndex() {
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var index = {};
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list.push(index);
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// Parse diff metadata
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while (i < diffstr.length) {
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var line = diffstr[i];
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// File header found, end parsing diff metadata
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if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
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break;
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}
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// Diff index
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var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
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if (header) {
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index.index = header[1];
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}
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i++;
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}
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// Parse file headers if they are defined. Unified diff requires them, but
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// there's no technical issues to have an isolated hunk without file header
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parseFileHeader(index);
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parseFileHeader(index);
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// Parse hunks
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index.hunks = [];
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while (i < diffstr.length) {
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var _line = diffstr[i];
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if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
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break;
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} else if (/^@@/.test(_line)) {
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index.hunks.push(parseHunk());
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} else if (_line && options.strict) {
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// Ignore unexpected content unless in strict mode
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throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
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} else {
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i++;
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}
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}
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}
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// Parses the --- and +++ headers, if none are found, no lines
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// are consumed.
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function parseFileHeader(index) {
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var headerPattern = /^(---|\+\+\+)\s+([\S ]*)(?:\t(.*?)\s*)?$/;
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var fileHeader = headerPattern.exec(diffstr[i]);
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if (fileHeader) {
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var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
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var fileName = fileHeader[2].replace(/\\\\/g, '\\');
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if (/^".*"$/.test(fileName)) {
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fileName = fileName.substr(1, fileName.length - 2);
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}
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index[keyPrefix + 'FileName'] = fileName;
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index[keyPrefix + 'Header'] = fileHeader[3];
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i++;
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}
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}
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// Parses a hunk
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// This assumes that we are at the start of a hunk.
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function parseHunk() {
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var chunkHeaderIndex = i,
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chunkHeaderLine = diffstr[i++],
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chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);
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var hunk = {
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oldStart: +chunkHeader[1],
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oldLines: +chunkHeader[2] || 1,
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newStart: +chunkHeader[3],
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newLines: +chunkHeader[4] || 1,
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lines: [],
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linedelimiters: []
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};
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var addCount = 0,
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removeCount = 0;
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for (; i < diffstr.length; i++) {
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// Lines starting with '---' could be mistaken for the "remove line" operation
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// But they could be the header for the next file. Therefore prune such cases out.
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if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
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break;
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}
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var operation = diffstr[i][0];
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if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
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hunk.lines.push(diffstr[i]);
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hunk.linedelimiters.push(delimiters[i] || '\n');
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if (operation === '+') {
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addCount++;
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} else if (operation === '-') {
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removeCount++;
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} else if (operation === ' ') {
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addCount++;
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removeCount++;
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}
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} else {
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break;
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}
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}
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// Handle the empty block count case
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if (!addCount && hunk.newLines === 1) {
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hunk.newLines = 0;
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}
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if (!removeCount && hunk.oldLines === 1) {
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hunk.oldLines = 0;
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}
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// Perform optional sanity checking
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if (options.strict) {
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if (addCount !== hunk.newLines) {
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throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
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}
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if (removeCount !== hunk.oldLines) {
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throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
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}
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}
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return hunk;
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}
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while (i < diffstr.length) {
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parseIndex();
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}
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return list;
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}
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//# sourceMappingURL=data:application/json;charset=utf-8;base64,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