mirror of
https://github.com/JamesIves/github-pages-deploy-action.git
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89 lines
2.6 KiB
Plaintext
89 lines
2.6 KiB
Plaintext
// @flow strict
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import { type Location } from './ast';
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import { type Source } from './source';
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import { type SourceLocation, getLocation } from './location';
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/**
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* Render a helpful description of the location in the GraphQL Source document.
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*/
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export function printLocation(location: Location): string {
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return printSourceLocation(
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location.source,
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getLocation(location.source, location.start),
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);
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}
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/**
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* Render a helpful description of the location in the GraphQL Source document.
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*/
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export function printSourceLocation(
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source: Source,
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sourceLocation: SourceLocation,
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): string {
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const firstLineColumnOffset = source.locationOffset.column - 1;
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const body = whitespace(firstLineColumnOffset) + source.body;
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const lineIndex = sourceLocation.line - 1;
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const lineOffset = source.locationOffset.line - 1;
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const lineNum = sourceLocation.line + lineOffset;
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const columnOffset = sourceLocation.line === 1 ? firstLineColumnOffset : 0;
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const columnNum = sourceLocation.column + columnOffset;
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const locationStr = `${source.name}:${lineNum}:${columnNum}\n`;
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const lines = body.split(/\r\n|[\n\r]/g);
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const locationLine = lines[lineIndex];
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// Special case for minified documents
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if (locationLine.length > 120) {
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const subLineIndex = Math.floor(columnNum / 80);
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const subLineColumnNum = columnNum % 80;
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const subLines = [];
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for (let i = 0; i < locationLine.length; i += 80) {
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subLines.push(locationLine.slice(i, i + 80));
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}
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return (
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locationStr +
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printPrefixedLines([
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[`${lineNum}`, subLines[0]],
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...subLines.slice(1, subLineIndex + 1).map(subLine => ['', subLine]),
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[' ', whitespace(subLineColumnNum - 1) + '^'],
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['', subLines[subLineIndex + 1]],
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])
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);
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}
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return (
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locationStr +
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printPrefixedLines([
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// Lines specified like this: ["prefix", "string"],
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[`${lineNum - 1}`, lines[lineIndex - 1]],
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[`${lineNum}`, locationLine],
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['', whitespace(columnNum - 1) + '^'],
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[`${lineNum + 1}`, lines[lineIndex + 1]],
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])
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);
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}
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function printPrefixedLines(lines: $ReadOnlyArray<[string, string]>): string {
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const existingLines = lines.filter(([_, line]) => line !== undefined);
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const padLen = Math.max(...existingLines.map(([prefix]) => prefix.length));
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return existingLines
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.map(
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([prefix, line]) =>
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leftPad(padLen, prefix) + (line ? ' | ' + line : ' |'),
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)
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.join('\n');
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}
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function whitespace(len: number): string {
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return Array(len + 1).join(' ');
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}
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function leftPad(len: number, str: string): string {
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return whitespace(len - str.length) + str;
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}
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