aboutsummaryrefslogtreecommitdiff
path: root/sandbox/testAppNevena/Front/node_modules/tar/lib/list.js
diff options
context:
space:
mode:
Diffstat (limited to 'sandbox/testAppNevena/Front/node_modules/tar/lib/list.js')
-rw-r--r--sandbox/testAppNevena/Front/node_modules/tar/lib/list.js132
1 files changed, 132 insertions, 0 deletions
diff --git a/sandbox/testAppNevena/Front/node_modules/tar/lib/list.js b/sandbox/testAppNevena/Front/node_modules/tar/lib/list.js
new file mode 100644
index 00000000..a0c1cf2f
--- /dev/null
+++ b/sandbox/testAppNevena/Front/node_modules/tar/lib/list.js
@@ -0,0 +1,132 @@
+'use strict'
+
+// XXX: This shares a lot in common with extract.js
+// maybe some DRY opportunity here?
+
+// tar -t
+const hlo = require('./high-level-opt.js')
+const Parser = require('./parse.js')
+const fs = require('fs')
+const fsm = require('fs-minipass')
+const path = require('path')
+const stripSlash = require('./strip-trailing-slashes.js')
+
+module.exports = (opt_, files, cb) => {
+ if (typeof opt_ === 'function')
+ cb = opt_, files = null, opt_ = {}
+ else if (Array.isArray(opt_))
+ files = opt_, opt_ = {}
+
+ if (typeof files === 'function')
+ cb = files, files = null
+
+ if (!files)
+ files = []
+ else
+ files = Array.from(files)
+
+ const opt = hlo(opt_)
+
+ if (opt.sync && typeof cb === 'function')
+ throw new TypeError('callback not supported for sync tar functions')
+
+ if (!opt.file && typeof cb === 'function')
+ throw new TypeError('callback only supported with file option')
+
+ if (files.length)
+ filesFilter(opt, files)
+
+ if (!opt.noResume)
+ onentryFunction(opt)
+
+ return opt.file && opt.sync ? listFileSync(opt)
+ : opt.file ? listFile(opt, cb)
+ : list(opt)
+}
+
+const onentryFunction = opt => {
+ const onentry = opt.onentry
+ opt.onentry = onentry ? e => {
+ onentry(e)
+ e.resume()
+ } : e => e.resume()
+}
+
+// construct a filter that limits the file entries listed
+// include child entries if a dir is included
+const filesFilter = (opt, files) => {
+ const map = new Map(files.map(f => [stripSlash(f), true]))
+ const filter = opt.filter
+
+ const mapHas = (file, r) => {
+ const root = r || path.parse(file).root || '.'
+ const ret = file === root ? false
+ : map.has(file) ? map.get(file)
+ : mapHas(path.dirname(file), root)
+
+ map.set(file, ret)
+ return ret
+ }
+
+ opt.filter = filter
+ ? (file, entry) => filter(file, entry) && mapHas(stripSlash(file))
+ : file => mapHas(stripSlash(file))
+}
+
+const listFileSync = opt => {
+ const p = list(opt)
+ const file = opt.file
+ let threw = true
+ let fd
+ try {
+ const stat = fs.statSync(file)
+ const readSize = opt.maxReadSize || 16 * 1024 * 1024
+ if (stat.size < readSize)
+ p.end(fs.readFileSync(file))
+ else {
+ let pos = 0
+ const buf = Buffer.allocUnsafe(readSize)
+ fd = fs.openSync(file, 'r')
+ while (pos < stat.size) {
+ const bytesRead = fs.readSync(fd, buf, 0, readSize, pos)
+ pos += bytesRead
+ p.write(buf.slice(0, bytesRead))
+ }
+ p.end()
+ }
+ threw = false
+ } finally {
+ if (threw && fd) {
+ try {
+ fs.closeSync(fd)
+ } catch (er) {}
+ }
+ }
+}
+
+const listFile = (opt, cb) => {
+ const parse = new Parser(opt)
+ const readSize = opt.maxReadSize || 16 * 1024 * 1024
+
+ const file = opt.file
+ const p = new Promise((resolve, reject) => {
+ parse.on('error', reject)
+ parse.on('end', resolve)
+
+ fs.stat(file, (er, stat) => {
+ if (er)
+ reject(er)
+ else {
+ const stream = new fsm.ReadStream(file, {
+ readSize: readSize,
+ size: stat.size,
+ })
+ stream.on('error', reject)
+ stream.pipe(parse)
+ }
+ })
+ })
+ return cb ? p.then(cb, cb) : p
+}
+
+const list = opt => new Parser(opt)