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authorDimitri Staessens <dimitri@ouroboros.rocks>2019-10-06 21:37:45 +0200
committerDimitri Staessens <dimitri@ouroboros.rocks>2019-10-06 21:37:45 +0200
commit3c51c3be85bb0d1bdb87ea0d6632f1c256912f27 (patch)
treec7ccc8279b12c4f7bdbbb4270d617e48f51722e4 /node_modules/fs-extra/lib/copy
parent412c104bebc507bea9c94fd53b5bdc4b64cbfe31 (diff)
downloadwebsite-3c51c3be85bb0d1bdb87ea0d6632f1c256912f27.tar.gz
website-3c51c3be85bb0d1bdb87ea0d6632f1c256912f27.zip
build: Add some required modules for node
Diffstat (limited to 'node_modules/fs-extra/lib/copy')
-rw-r--r--node_modules/fs-extra/lib/copy/copy.js264
-rw-r--r--node_modules/fs-extra/lib/copy/index.js4
2 files changed, 268 insertions, 0 deletions
diff --git a/node_modules/fs-extra/lib/copy/copy.js b/node_modules/fs-extra/lib/copy/copy.js
new file mode 100644
index 0000000..fd9687f
--- /dev/null
+++ b/node_modules/fs-extra/lib/copy/copy.js
@@ -0,0 +1,264 @@
+'use strict'
+
+const fs = require('graceful-fs')
+const path = require('path')
+const mkdirp = require('../mkdirs').mkdirs
+const pathExists = require('../path-exists').pathExists
+const utimes = require('../util/utimes').utimesMillis
+
+const notExist = Symbol('notExist')
+const existsReg = Symbol('existsReg')
+
+function copy (src, dest, opts, cb) {
+ if (typeof opts === 'function' && !cb) {
+ cb = opts
+ opts = {}
+ } else if (typeof opts === 'function') {
+ opts = {filter: opts}
+ }
+
+ cb = cb || function () {}
+ opts = opts || {}
+
+ opts.clobber = 'clobber' in opts ? !!opts.clobber : true // default to true for now
+ opts.overwrite = 'overwrite' in opts ? !!opts.overwrite : opts.clobber // overwrite falls back to clobber
+
+ // Warn about using preserveTimestamps on 32-bit node
+ if (opts.preserveTimestamps && process.arch === 'ia32') {
+ console.warn(`fs-extra: Using the preserveTimestamps option in 32-bit node is not recommended;\n
+ see https://github.com/jprichardson/node-fs-extra/issues/269`)
+ }
+
+ src = path.resolve(src)
+ dest = path.resolve(dest)
+
+ // don't allow src and dest to be the same
+ if (src === dest) return cb(new Error('Source and destination must not be the same.'))
+
+ if (opts.filter) return handleFilter(checkParentDir, src, dest, opts, cb)
+ return checkParentDir(src, dest, opts, cb)
+}
+
+function checkParentDir (src, dest, opts, cb) {
+ const destParent = path.dirname(dest)
+ pathExists(destParent, (err, dirExists) => {
+ if (err) return cb(err)
+ if (dirExists) return startCopy(src, dest, opts, cb)
+ mkdirp(destParent, err => {
+ if (err) return cb(err)
+ return startCopy(src, dest, opts, cb)
+ })
+ })
+}
+
+function startCopy (src, dest, opts, cb) {
+ if (opts.filter) return handleFilter(getStats, src, dest, opts, cb)
+ return getStats(src, dest, opts, cb)
+}
+
+function handleFilter (onInclude, src, dest, opts, cb) {
+ Promise.resolve(opts.filter(src, dest))
+ .then(include => {
+ if (include) return onInclude(src, dest, opts, cb)
+ return cb()
+ }, error => cb(error))
+}
+
+function getStats (src, dest, opts, cb) {
+ const stat = opts.dereference ? fs.stat : fs.lstat
+ stat(src, (err, st) => {
+ if (err) return cb(err)
+
+ if (st.isDirectory()) return onDir(st, src, dest, opts, cb)
+ else if (st.isFile() ||
+ st.isCharacterDevice() ||
+ st.isBlockDevice()) return onFile(st, src, dest, opts, cb)
+ else if (st.isSymbolicLink()) return onLink(src, dest, opts, cb)
+ })
+}
+
+function onFile (srcStat, src, dest, opts, cb) {
+ checkDest(dest, (err, resolvedPath) => {
+ if (err) return cb(err)
+ if (resolvedPath === notExist) {
+ return copyFile(srcStat, src, dest, opts, cb)
+ } else if (resolvedPath === existsReg) {
+ return mayCopyFile(srcStat, src, dest, opts, cb)
+ } else {
+ if (src === resolvedPath) return cb()
+ return mayCopyFile(srcStat, src, dest, opts, cb)
+ }
+ })
+}
+
+function mayCopyFile (srcStat, src, dest, opts, cb) {
+ if (opts.overwrite) {
+ fs.unlink(dest, err => {
+ if (err) return cb(err)
+ return copyFile(srcStat, src, dest, opts, cb)
+ })
+ } else if (opts.errorOnExist) {
+ return cb(new Error(`'${dest}' already exists`))
+ } else return cb()
+}
+
+function copyFile (srcStat, src, dest, opts, cb) {
+ if (typeof fs.copyFile === 'function') {
+ return fs.copyFile(src, dest, err => {
+ if (err) return cb(err)
+ return setDestModeAndTimestamps(srcStat, dest, opts, cb)
+ })
+ }
+ return copyFileFallback(srcStat, src, dest, opts, cb)
+}
+
+function copyFileFallback (srcStat, src, dest, opts, cb) {
+ const rs = fs.createReadStream(src)
+ rs.on('error', err => cb(err))
+ .once('open', () => {
+ const ws = fs.createWriteStream(dest, { mode: srcStat.mode })
+ ws.on('error', err => cb(err))
+ .on('open', () => rs.pipe(ws))
+ .once('close', () => setDestModeAndTimestamps(srcStat, dest, opts, cb))
+ })
+}
+
+function setDestModeAndTimestamps (srcStat, dest, opts, cb) {
+ fs.chmod(dest, srcStat.mode, err => {
+ if (err) return cb(err)
+ if (opts.preserveTimestamps) {
+ return utimes(dest, srcStat.atime, srcStat.mtime, cb)
+ }
+ return cb()
+ })
+}
+
+function onDir (srcStat, src, dest, opts, cb) {
+ checkDest(dest, (err, resolvedPath) => {
+ if (err) return cb(err)
+ if (resolvedPath === notExist) {
+ if (isSrcSubdir(src, dest)) {
+ return cb(new Error(`Cannot copy '${src}' to a subdirectory of itself, '${dest}'.`))
+ }
+ return mkDirAndCopy(srcStat, src, dest, opts, cb)
+ } else if (resolvedPath === existsReg) {
+ if (isSrcSubdir(src, dest)) {
+ return cb(new Error(`Cannot copy '${src}' to a subdirectory of itself, '${dest}'.`))
+ }
+ return mayCopyDir(src, dest, opts, cb)
+ } else {
+ if (src === resolvedPath) return cb()
+ return copyDir(src, dest, opts, cb)
+ }
+ })
+}
+
+function mayCopyDir (src, dest, opts, cb) {
+ fs.stat(dest, (err, st) => {
+ if (err) return cb(err)
+ if (!st.isDirectory()) {
+ return cb(new Error(`Cannot overwrite non-directory '${dest}' with directory '${src}'.`))
+ }
+ return copyDir(src, dest, opts, cb)
+ })
+}
+
+function mkDirAndCopy (srcStat, src, dest, opts, cb) {
+ fs.mkdir(dest, srcStat.mode, err => {
+ if (err) return cb(err)
+ fs.chmod(dest, srcStat.mode, err => {
+ if (err) return cb(err)
+ return copyDir(src, dest, opts, cb)
+ })
+ })
+}
+
+function copyDir (src, dest, opts, cb) {
+ fs.readdir(src, (err, items) => {
+ if (err) return cb(err)
+ return copyDirItems(items, src, dest, opts, cb)
+ })
+}
+
+function copyDirItems (items, src, dest, opts, cb) {
+ const item = items.pop()
+ if (!item) return cb()
+ startCopy(path.join(src, item), path.join(dest, item), opts, err => {
+ if (err) return cb(err)
+ return copyDirItems(items, src, dest, opts, cb)
+ })
+}
+
+function onLink (src, dest, opts, cb) {
+ fs.readlink(src, (err, resolvedSrcPath) => {
+ if (err) return cb(err)
+
+ if (opts.dereference) {
+ resolvedSrcPath = path.resolve(process.cwd(), resolvedSrcPath)
+ }
+
+ checkDest(dest, (err, resolvedDestPath) => {
+ if (err) return cb(err)
+
+ if (resolvedDestPath === notExist || resolvedDestPath === existsReg) {
+ // if dest already exists, fs throws error anyway,
+ // so no need to guard against it here.
+ return fs.symlink(resolvedSrcPath, dest, cb)
+ } else {
+ if (opts.dereference) {
+ resolvedDestPath = path.resolve(process.cwd(), resolvedDestPath)
+ }
+ if (resolvedDestPath === resolvedSrcPath) return cb()
+
+ // prevent copy if src is a subdir of dest since unlinking
+ // dest in this case would result in removing src contents
+ // and therefore a broken symlink would be created.
+ fs.stat(dest, (err, st) => {
+ if (err) return cb(err)
+ if (st.isDirectory() && isSrcSubdir(resolvedDestPath, resolvedSrcPath)) {
+ return cb(new Error(`Cannot overwrite '${resolvedDestPath}' with '${resolvedSrcPath}'.`))
+ }
+ return copyLink(resolvedSrcPath, dest, cb)
+ })
+ }
+ })
+ })
+}
+
+function copyLink (resolvedSrcPath, dest, cb) {
+ fs.unlink(dest, err => {
+ if (err) return cb(err)
+ return fs.symlink(resolvedSrcPath, dest, cb)
+ })
+}
+
+// check if dest exists and/or is a symlink
+function checkDest (dest, cb) {
+ fs.readlink(dest, (err, resolvedPath) => {
+ if (err) {
+ if (err.code === 'ENOENT') return cb(null, notExist)
+
+ // dest exists and is a regular file or directory, Windows may throw UNKNOWN error.
+ if (err.code === 'EINVAL' || err.code === 'UNKNOWN') return cb(null, existsReg)
+
+ return cb(err)
+ }
+ return cb(null, resolvedPath) // dest exists and is a symlink
+ })
+}
+
+// return true if dest is a subdir of src, otherwise false.
+// extract dest base dir and check if that is the same as src basename
+function isSrcSubdir (src, dest) {
+ const baseDir = dest.split(path.dirname(src) + path.sep)[1]
+ if (baseDir) {
+ const destBasename = baseDir.split(path.sep)[0]
+ if (destBasename) {
+ return src !== dest && dest.indexOf(src) > -1 && destBasename === path.basename(src)
+ }
+ return false
+ }
+ return false
+}
+
+module.exports = copy
diff --git a/node_modules/fs-extra/lib/copy/index.js b/node_modules/fs-extra/lib/copy/index.js
new file mode 100644
index 0000000..a6a51da
--- /dev/null
+++ b/node_modules/fs-extra/lib/copy/index.js
@@ -0,0 +1,4 @@
+const u = require('universalify').fromCallback
+module.exports = {
+ copy: u(require('./copy'))
+}