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| 4 |
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| 5 | "use strict";
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| 6 |
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| 7 | module.exports = class FileExistsPlugin {
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| 8 | constructor(source, target) {
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| 9 | this.source = source;
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| 10 | this.target = target;
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| 11 | }
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| 12 |
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| 13 | apply(resolver) {
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| 14 | const target = resolver.ensureHook(this.target);
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| 15 | const fs = resolver.fileSystem;
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| 16 | resolver.getHook(this.source).tapAsync("FileExistsPlugin", (request, resolveContext, callback) => {
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| 17 | const file = request.path;
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| 18 | fs.stat(file, (err, stat) => {
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| 19 | if(err || !stat) {
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| 20 | if(resolveContext.missing) resolveContext.missing.add(file);
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| 21 | if(resolveContext.log) resolveContext.log(file + " doesn't exist");
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| 22 | return callback();
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| 23 | }
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| 24 | if(!stat.isFile()) {
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| 25 | if(resolveContext.missing) resolveContext.missing.add(file);
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| 26 | if(resolveContext.log) resolveContext.log(file + " is not a file");
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| 27 | return callback();
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| 28 | }
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| 29 | resolver.doResolve(target, request, "existing file: " + file, resolveContext, callback);
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| 30 | });
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| 31 | });
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| 32 | }
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| 33 | };
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