/
processPattern.js
117 lines (90 loc) · 3.33 KB
/
processPattern.js
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import path from 'path';
import globby from 'globby';
import pLimit from 'p-limit';
import minimatch from 'minimatch';
import isObject from './utils/isObject';
export default function processPattern(globalRef, pattern) {
const { info, debug, output, concurrency } = globalRef;
const globOptions = Object.assign(
{
cwd: pattern.context,
},
pattern.globOptions || {}
);
if (pattern.fromType === 'nonexistent') {
return Promise.resolve();
}
const limit = pLimit(concurrency || 100);
info(
`begin globbing '${pattern.glob}' with a context of '${pattern.context}'`
);
return globby(pattern.glob, globOptions).then((paths) =>
Promise.all(
paths.map((from) =>
limit(() => {
const file = {
force: pattern.force,
absoluteFrom: path.resolve(pattern.context, from),
};
file.relativeFrom = path.relative(pattern.context, file.absoluteFrom);
if (pattern.flatten) {
file.relativeFrom = path.basename(file.relativeFrom);
}
debug(`found ${from}`);
// Check the ignore list
let il = pattern.ignore.length;
// eslint-disable-next-line no-plusplus
while (il--) {
const ignoreGlob = pattern.ignore[il];
let globParams = {
dot: true,
matchBase: true,
};
let glob;
if (typeof ignoreGlob === 'string') {
glob = ignoreGlob;
} else if (isObject(ignoreGlob)) {
glob = ignoreGlob.glob || '';
const ignoreGlobParams = Object.assign({}, ignoreGlob);
delete ignoreGlobParams.glob;
// Overwrite minimatch defaults
globParams = Object.assign(globParams, ignoreGlobParams);
} else {
glob = '';
}
debug(`testing ${glob} against ${file.relativeFrom}`);
if (minimatch(file.relativeFrom, glob, globParams)) {
info(
`ignoring '${
file.relativeFrom
}', because it matches the ignore glob '${glob}'`
);
return Promise.resolve();
}
debug(`${glob} doesn't match ${file.relativeFrom}`);
}
// Change the to path to be relative for webpack
if (pattern.toType === 'dir') {
file.webpackTo = path.join(pattern.to, file.relativeFrom);
} else if (pattern.toType === 'file') {
file.webpackTo = pattern.to || file.relativeFrom;
} else if (pattern.toType === 'template') {
file.webpackTo = pattern.to;
file.webpackToRegExp = pattern.test;
}
if (path.isAbsolute(file.webpackTo)) {
if (output === '/') {
// eslint-disable-next-line no-throw-literal
throw '[copy-webpack-plugin] Using older versions of webpack-dev-server, devServer.outputPath must be defined to write to absolute paths';
}
file.webpackTo = path.relative(output, file.webpackTo);
}
// ensure forward slashes
file.webpackTo = file.webpackTo.replace(/\\/g, '/');
info(`determined that '${from}' should write to '${file.webpackTo}'`);
return file;
})
)
)
);
}