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46 lines
1.0 KiB
46 lines
1.0 KiB
13 years ago
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// only remove the thing if it's a symlink into a specific folder.
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// This is a very common use-case of npm's, but not so common elsewhere.
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module.exports = gentlyRm
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var rimraf = require("rimraf")
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, fs = require("graceful-fs")
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, npm = require("../npm.js")
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, path = require("path")
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function gentlyRm (p, gently, cb) {
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if (npm.config.get("force") || !gently) {
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return rimraf(p, cb)
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}
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gently = path.resolve(gently)
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// lstat it, see if it's a symlink.
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fs.lstat(p, function (er, s) {
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if (er) return rimraf(p, cb)
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if (!s.isSymbolicLink()) next(null, path.resolve(p))
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realish(p, next)
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})
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function next (er, rp) {
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if (rp && rp.indexOf(gently) !== 0) {
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return clobberFail(p, gently, cb)
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}
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rimraf(p, cb)
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}
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}
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function realish (p, cb) {
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fs.readlink(p, function (er, r) {
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if (er) return cb(er)
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return cb(null, path.resolve(path.dirname(p), r))
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})
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}
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function clobberFail (p, g, cb) {
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var er = new Error("Refusing to delete: "+p+" not in "+g)
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er.code = "EEXIST"
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er.path = p
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return cb(er)
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}
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