Demo for query storing
Change-Id: I947bcac841992c3f6cfd01ab337c265b0d01cb70
diff --git a/node_modules/rimraf/rimraf.js b/node_modules/rimraf/rimraf.js
new file mode 100644
index 0000000..34da417
--- /dev/null
+++ b/node_modules/rimraf/rimraf.js
@@ -0,0 +1,360 @@
+const assert = require("assert")
+const path = require("path")
+const fs = require("fs")
+let glob = undefined
+try {
+ glob = require("glob")
+} catch (_err) {
+ // treat glob as optional.
+}
+
+const defaultGlobOpts = {
+ nosort: true,
+ silent: true
+}
+
+// for EMFILE handling
+let timeout = 0
+
+const isWindows = (process.platform === "win32")
+
+const defaults = options => {
+ const methods = [
+ 'unlink',
+ 'chmod',
+ 'stat',
+ 'lstat',
+ 'rmdir',
+ 'readdir'
+ ]
+ methods.forEach(m => {
+ options[m] = options[m] || fs[m]
+ m = m + 'Sync'
+ options[m] = options[m] || fs[m]
+ })
+
+ options.maxBusyTries = options.maxBusyTries || 3
+ options.emfileWait = options.emfileWait || 1000
+ if (options.glob === false) {
+ options.disableGlob = true
+ }
+ if (options.disableGlob !== true && glob === undefined) {
+ throw Error('glob dependency not found, set `options.disableGlob = true` if intentional')
+ }
+ options.disableGlob = options.disableGlob || false
+ options.glob = options.glob || defaultGlobOpts
+}
+
+const rimraf = (p, options, cb) => {
+ if (typeof options === 'function') {
+ cb = options
+ options = {}
+ }
+
+ assert(p, 'rimraf: missing path')
+ assert.equal(typeof p, 'string', 'rimraf: path should be a string')
+ assert.equal(typeof cb, 'function', 'rimraf: callback function required')
+ assert(options, 'rimraf: invalid options argument provided')
+ assert.equal(typeof options, 'object', 'rimraf: options should be object')
+
+ defaults(options)
+
+ let busyTries = 0
+ let errState = null
+ let n = 0
+
+ const next = (er) => {
+ errState = errState || er
+ if (--n === 0)
+ cb(errState)
+ }
+
+ const afterGlob = (er, results) => {
+ if (er)
+ return cb(er)
+
+ n = results.length
+ if (n === 0)
+ return cb()
+
+ results.forEach(p => {
+ const CB = (er) => {
+ if (er) {
+ if ((er.code === "EBUSY" || er.code === "ENOTEMPTY" || er.code === "EPERM") &&
+ busyTries < options.maxBusyTries) {
+ busyTries ++
+ // try again, with the same exact callback as this one.
+ return setTimeout(() => rimraf_(p, options, CB), busyTries * 100)
+ }
+
+ // this one won't happen if graceful-fs is used.
+ if (er.code === "EMFILE" && timeout < options.emfileWait) {
+ return setTimeout(() => rimraf_(p, options, CB), timeout ++)
+ }
+
+ // already gone
+ if (er.code === "ENOENT") er = null
+ }
+
+ timeout = 0
+ next(er)
+ }
+ rimraf_(p, options, CB)
+ })
+ }
+
+ if (options.disableGlob || !glob.hasMagic(p))
+ return afterGlob(null, [p])
+
+ options.lstat(p, (er, stat) => {
+ if (!er)
+ return afterGlob(null, [p])
+
+ glob(p, options.glob, afterGlob)
+ })
+
+}
+
+// Two possible strategies.
+// 1. Assume it's a file. unlink it, then do the dir stuff on EPERM or EISDIR
+// 2. Assume it's a directory. readdir, then do the file stuff on ENOTDIR
+//
+// Both result in an extra syscall when you guess wrong. However, there
+// are likely far more normal files in the world than directories. This
+// is based on the assumption that a the average number of files per
+// directory is >= 1.
+//
+// If anyone ever complains about this, then I guess the strategy could
+// be made configurable somehow. But until then, YAGNI.
+const rimraf_ = (p, options, cb) => {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ // sunos lets the root user unlink directories, which is... weird.
+ // so we have to lstat here and make sure it's not a dir.
+ options.lstat(p, (er, st) => {
+ if (er && er.code === "ENOENT")
+ return cb(null)
+
+ // Windows can EPERM on stat. Life is suffering.
+ if (er && er.code === "EPERM" && isWindows)
+ fixWinEPERM(p, options, er, cb)
+
+ if (st && st.isDirectory())
+ return rmdir(p, options, er, cb)
+
+ options.unlink(p, er => {
+ if (er) {
+ if (er.code === "ENOENT")
+ return cb(null)
+ if (er.code === "EPERM")
+ return (isWindows)
+ ? fixWinEPERM(p, options, er, cb)
+ : rmdir(p, options, er, cb)
+ if (er.code === "EISDIR")
+ return rmdir(p, options, er, cb)
+ }
+ return cb(er)
+ })
+ })
+}
+
+const fixWinEPERM = (p, options, er, cb) => {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ options.chmod(p, 0o666, er2 => {
+ if (er2)
+ cb(er2.code === "ENOENT" ? null : er)
+ else
+ options.stat(p, (er3, stats) => {
+ if (er3)
+ cb(er3.code === "ENOENT" ? null : er)
+ else if (stats.isDirectory())
+ rmdir(p, options, er, cb)
+ else
+ options.unlink(p, cb)
+ })
+ })
+}
+
+const fixWinEPERMSync = (p, options, er) => {
+ assert(p)
+ assert(options)
+
+ try {
+ options.chmodSync(p, 0o666)
+ } catch (er2) {
+ if (er2.code === "ENOENT")
+ return
+ else
+ throw er
+ }
+
+ let stats
+ try {
+ stats = options.statSync(p)
+ } catch (er3) {
+ if (er3.code === "ENOENT")
+ return
+ else
+ throw er
+ }
+
+ if (stats.isDirectory())
+ rmdirSync(p, options, er)
+ else
+ options.unlinkSync(p)
+}
+
+const rmdir = (p, options, originalEr, cb) => {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ // try to rmdir first, and only readdir on ENOTEMPTY or EEXIST (SunOS)
+ // if we guessed wrong, and it's not a directory, then
+ // raise the original error.
+ options.rmdir(p, er => {
+ if (er && (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM"))
+ rmkids(p, options, cb)
+ else if (er && er.code === "ENOTDIR")
+ cb(originalEr)
+ else
+ cb(er)
+ })
+}
+
+const rmkids = (p, options, cb) => {
+ assert(p)
+ assert(options)
+ assert(typeof cb === 'function')
+
+ options.readdir(p, (er, files) => {
+ if (er)
+ return cb(er)
+ let n = files.length
+ if (n === 0)
+ return options.rmdir(p, cb)
+ let errState
+ files.forEach(f => {
+ rimraf(path.join(p, f), options, er => {
+ if (errState)
+ return
+ if (er)
+ return cb(errState = er)
+ if (--n === 0)
+ options.rmdir(p, cb)
+ })
+ })
+ })
+}
+
+// this looks simpler, and is strictly *faster*, but will
+// tie up the JavaScript thread and fail on excessively
+// deep directory trees.
+const rimrafSync = (p, options) => {
+ options = options || {}
+ defaults(options)
+
+ assert(p, 'rimraf: missing path')
+ assert.equal(typeof p, 'string', 'rimraf: path should be a string')
+ assert(options, 'rimraf: missing options')
+ assert.equal(typeof options, 'object', 'rimraf: options should be object')
+
+ let results
+
+ if (options.disableGlob || !glob.hasMagic(p)) {
+ results = [p]
+ } else {
+ try {
+ options.lstatSync(p)
+ results = [p]
+ } catch (er) {
+ results = glob.sync(p, options.glob)
+ }
+ }
+
+ if (!results.length)
+ return
+
+ for (let i = 0; i < results.length; i++) {
+ const p = results[i]
+
+ let st
+ try {
+ st = options.lstatSync(p)
+ } catch (er) {
+ if (er.code === "ENOENT")
+ return
+
+ // Windows can EPERM on stat. Life is suffering.
+ if (er.code === "EPERM" && isWindows)
+ fixWinEPERMSync(p, options, er)
+ }
+
+ try {
+ // sunos lets the root user unlink directories, which is... weird.
+ if (st && st.isDirectory())
+ rmdirSync(p, options, null)
+ else
+ options.unlinkSync(p)
+ } catch (er) {
+ if (er.code === "ENOENT")
+ return
+ if (er.code === "EPERM")
+ return isWindows ? fixWinEPERMSync(p, options, er) : rmdirSync(p, options, er)
+ if (er.code !== "EISDIR")
+ throw er
+
+ rmdirSync(p, options, er)
+ }
+ }
+}
+
+const rmdirSync = (p, options, originalEr) => {
+ assert(p)
+ assert(options)
+
+ try {
+ options.rmdirSync(p)
+ } catch (er) {
+ if (er.code === "ENOENT")
+ return
+ if (er.code === "ENOTDIR")
+ throw originalEr
+ if (er.code === "ENOTEMPTY" || er.code === "EEXIST" || er.code === "EPERM")
+ rmkidsSync(p, options)
+ }
+}
+
+const rmkidsSync = (p, options) => {
+ assert(p)
+ assert(options)
+ options.readdirSync(p).forEach(f => rimrafSync(path.join(p, f), options))
+
+ // We only end up here once we got ENOTEMPTY at least once, and
+ // at this point, we are guaranteed to have removed all the kids.
+ // So, we know that it won't be ENOENT or ENOTDIR or anything else.
+ // try really hard to delete stuff on windows, because it has a
+ // PROFOUNDLY annoying habit of not closing handles promptly when
+ // files are deleted, resulting in spurious ENOTEMPTY errors.
+ const retries = isWindows ? 100 : 1
+ let i = 0
+ do {
+ let threw = true
+ try {
+ const ret = options.rmdirSync(p, options)
+ threw = false
+ return ret
+ } finally {
+ if (++i < retries && threw)
+ continue
+ }
+ } while (true)
+}
+
+module.exports = rimraf
+rimraf.sync = rimrafSync