144 lines
13 KiB
JavaScript
144 lines
13 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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index[keyPrefix + 'FileName'] = fileHeader[2];
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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;base64,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