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Diffstat (limited to 'node_modules/enhanced-resolve/lib/SymlinkPlugin.js')
-rw-r--r-- | node_modules/enhanced-resolve/lib/SymlinkPlugin.js | 64 |
1 files changed, 64 insertions, 0 deletions
diff --git a/node_modules/enhanced-resolve/lib/SymlinkPlugin.js b/node_modules/enhanced-resolve/lib/SymlinkPlugin.js new file mode 100644 index 0000000..cc22b2d --- /dev/null +++ b/node_modules/enhanced-resolve/lib/SymlinkPlugin.js @@ -0,0 +1,64 @@ +/* + MIT License http://www.opensource.org/licenses/mit-license.php + Author Tobias Koppers @sokra +*/ +"use strict"; + +const getPaths = require("./getPaths"); +const forEachBail = require("./forEachBail"); + +module.exports = class SymlinkPlugin { + constructor(source, target) { + this.source = source; + this.target = target; + } + + apply(resolver) { + const target = resolver.ensureHook(this.target); + const fs = resolver.fileSystem; + resolver + .getHook(this.source) + .tapAsync("SymlinkPlugin", (request, resolveContext, callback) => { + const pathsResult = getPaths(request.path); + const pathSeqments = pathsResult.seqments; + const paths = pathsResult.paths; + + let containsSymlink = false; + forEachBail.withIndex( + paths, + (path, idx, callback) => { + fs.readlink(path, (err, result) => { + if (!err && result) { + pathSeqments[idx] = result; + containsSymlink = true; + // Shortcut when absolute symlink found + if (/^(\/|[a-zA-Z]:($|\\))/.test(result)) + return callback(null, idx); + } + callback(); + }); + }, + (err, idx) => { + if (!containsSymlink) return callback(); + const resultSeqments = + typeof idx === "number" + ? pathSeqments.slice(0, idx + 1) + : pathSeqments.slice(); + const result = resultSeqments.reverse().reduce((a, b) => { + return resolver.join(a, b); + }); + const obj = Object.assign({}, request, { + path: result + }); + resolver.doResolve( + target, + obj, + "resolved symlink to " + result, + resolveContext, + callback + ); + } + ); + }); + } +}; |