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<title>Code coverage report for tar/lib/write-entry.js</title>
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<h1>
<a href="../../index.html">All files</a> / <a href="index.html">tar/lib</a> write-entry.js
</h1>
<div class='clearfix'>
<div class='fl pad1y space-right2'>
<span class="strong">99.53% </span>
<span class="quiet">Statements</span>
<span class='fraction'>213/214</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">97.87% </span>
<span class="quiet">Branches</span>
<span class='fraction'>184/188</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">100% </span>
<span class="quiet">Functions</span>
<span class='fraction'>31/31</span>
</div>
<div class='fl pad1y space-right2'>
<span class="strong">99.53% </span>
<span class="quiet">Lines</span>
<span class='fraction'>210/211</span>
</div>
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<span class="cline-any cline-neutral">&nbsp;</span></td><td class="text"><pre class="prettyprint lang-js">'use strict'
const MiniPass = require('minipass')
const Pax = require('./pax.js')
const Header = require('./header.js')
const ReadEntry = require('./read-entry.js')
const fs = require('fs')
const path = require('path')
&nbsp;
const types = require('./types.js')
const maxReadSize = 16 * 1024 * 1024
const PROCESS = Symbol('process')
const FILE = Symbol('file')
const DIRECTORY = Symbol('directory')
const SYMLINK = Symbol('symlink')
const HARDLINK = Symbol('hardlink')
const HEADER = Symbol('header')
const READ = Symbol('read')
const LSTAT = Symbol('lstat')
const ONLSTAT = Symbol('onlstat')
const ONREAD = Symbol('onread')
const ONREADLINK = Symbol('onreadlink')
const OPENFILE = Symbol('openfile')
const ONOPENFILE = Symbol('onopenfile')
const CLOSE = Symbol('close')
const warner = require('./warn-mixin.js')
const winchars = require('./winchars.js')
&nbsp;
const WriteEntry = warner(class WriteEntry extends MiniPass {
constructor (p, opt) {
opt = opt || {}
super(opt)
if (typeof p !== 'string')
throw new TypeError('path is required')
this.path = p
// suppress atime, ctime, uid, gid, uname, gname
this.portable = !!opt.portable
// until node has builtin pwnam functions, this'll have to do
this.myuid = process.getuid &amp;&amp; process.getuid()
this.myuser = process.env.USER || ''
this.maxReadSize = opt.maxReadSize || maxReadSize
this.linkCache = opt.linkCache || new Map()
this.statCache = opt.statCache || new Map()
this.preservePaths = !!opt.preservePaths
this.cwd = opt.cwd || process.cwd()
this.strict = !!opt.strict
this.noPax = !!opt.noPax
this.noMtime = !!opt.noMtime
&nbsp;
if (typeof opt.onwarn === 'function')
this.on('warn', opt.onwarn)
&nbsp;
if (!this.preservePaths &amp;&amp; path.win32.isAbsolute(p)) {
// absolutes on posix are also absolutes on win32
// so we only need to test this one to get both
const parsed = path.win32.parse(p)
this.warn('stripping ' + parsed.root + ' from absolute path', p)
this.path = p.substr(parsed.root.length)
}
&nbsp;
this.win32 = !!opt.win32 || process.platform === 'win32'
if (this.win32) {
this.path = winchars.decode(this.path.replace(/\\/g, '/'))
p = p.replace(/\\/g, '/')
}
&nbsp;
this.absolute = opt.absolute || path.resolve(this.cwd, p)
&nbsp;
if (this.path === '')
this.path = './'
&nbsp;
if (this.statCache.has(this.absolute))
this[ONLSTAT](this.statCache.get(this.absolute))
else
this[LSTAT]()
}
&nbsp;
[LSTAT] () {
fs.lstat(this.absolute, (er, stat) =&gt; {
if (er)
return this.emit('error', er)
this[ONLSTAT](stat)
})
}
&nbsp;
[ONLSTAT] (stat) {
this.statCache.set(this.absolute, stat)
this.stat = stat
if (!stat.isFile())
stat.size = 0
this.type = getType(stat)
this.emit('stat', stat)
this[PROCESS]()
}
&nbsp;
[PROCESS] () {
switch (this.type) {
case 'File': return this[FILE]()
case 'Directory': return this[DIRECTORY]()
case 'SymbolicLink': return this[SYMLINK]()
// unsupported types are ignored.
default: return this.end()
}
}
&nbsp;
[HEADER] () {
if (this.type === 'Directory' &amp;&amp; this.portable)
this.noMtime = true
&nbsp;
this.header = new Header({
path: this.path,
linkpath: this.linkpath,
// only the permissions and setuid/setgid/sticky bitflags
// not the higher-order bits that specify file type
mode: this.stat.mode &amp; 0o7777,
uid: this.portable ? null : this.stat.uid,
gid: this.portable ? null : this.stat.gid,
size: this.stat.size,
mtime: this.noMtime ? null : this.stat.mtime,
type: this.type,
uname: this.portable ? null :
this.stat.uid === this.myuid ? this.myuser : '',
atime: this.portable ? null : this.stat.atime,
ctime: this.portable ? null : this.stat.ctime
})
&nbsp;
if (this.header.encode() &amp;&amp; !this.noPax)
this.write(new Pax({
atime: this.portable ? null : this.header.atime,
ctime: this.portable ? null : this.header.ctime,
gid: this.portable ? null : this.header.gid,
mtime: this.noMtime ? null : this.header.mtime,
path: this.path,
linkpath: this.linkpath,
size: this.header.size,
uid: this.portable ? null : this.header.uid,
uname: this.portable ? null : this.header.uname,
dev: this.portable ? null : this.stat.dev,
ino: this.portable ? null : this.stat.ino,
nlink: this.portable ? null : this.stat.nlink
}).encode())
this.write(this.header.block)
}
&nbsp;
[DIRECTORY] () {
if (this.path.substr(-1) !== '/')
this.path += '/'
this.stat.size = 0
this[HEADER]()
this.end()
}
&nbsp;
[SYMLINK] () {
fs.readlink(this.absolute, (er, linkpath) =&gt; {
if (er)
return this.emit('error', er)
this[ONREADLINK](linkpath)
})
}
&nbsp;
[ONREADLINK] (linkpath) {
this.linkpath = linkpath
this[HEADER]()
this.end()
}
&nbsp;
[HARDLINK] (linkpath) {
this.type = 'Link'
this.linkpath = path.relative(this.cwd, linkpath)
this.stat.size = 0
this[HEADER]()
this.end()
}
&nbsp;
[FILE] () {
if (this.stat.nlink &gt; 1) {
const linkKey = this.stat.dev + ':' + this.stat.ino
if (this.linkCache.has(linkKey)) {
const linkpath = this.linkCache.get(linkKey)
if (linkpath.indexOf(this.cwd) === 0)
return this[HARDLINK](linkpath)
}
this.linkCache.set(linkKey, this.absolute)
}
&nbsp;
this[HEADER]()
if (this.stat.size === 0)
return this.end()
&nbsp;
this[OPENFILE]()
}
&nbsp;
[OPENFILE] () {
fs.open(this.absolute, 'r', (er, fd) =&gt; {
if (er)
return this.emit('error', er)
this[ONOPENFILE](fd)
})
}
&nbsp;
[ONOPENFILE] (fd) {
const blockLen = 512 * Math.ceil(this.stat.size / 512)
const bufLen = Math.min(blockLen, this.maxReadSize)
const buf = Buffer.allocUnsafe(bufLen)
this[READ](fd, buf, 0, buf.length, 0, this.stat.size, blockLen)
}
&nbsp;
[READ] (fd, buf, offset, length, pos, remain, blockRemain) {
fs.read(fd, buf, offset, length, pos, (er, bytesRead) =&gt; {
if (er)
return this[CLOSE](fd, _ =&gt; this.emit('error', er))
this[ONREAD](fd, buf, offset, length, pos, remain, blockRemain, bytesRead)
})
}
&nbsp;
[CLOSE] (fd, cb) {
fs.close(fd, cb)
}
&nbsp;
[ONREAD] (fd, buf, offset, length, pos, remain, blockRemain, bytesRead) {
if (bytesRead &lt;= 0 &amp;&amp; remain &gt; 0) {
const er = new Error('unexpected EOF')
er.path = this.absolute
er.syscall = 'read'
er.code = 'EOF'
this.emit('error', er)
}
&nbsp;
// null out the rest of the buffer, if we could fit the block padding
if (bytesRead === remain) {
for (let i = bytesRead; i &lt; length &amp;&amp; bytesRead &lt; blockRemain; i++) {
buf[i + offset] = 0
bytesRead ++
remain ++
}
}
&nbsp;
const writeBuf = offset === 0 &amp;&amp; bytesRead === buf.length ?
buf : buf.slice(offset, offset + bytesRead)
remain -= bytesRead
blockRemain -= bytesRead
pos += bytesRead
offset += bytesRead
&nbsp;
this.write(writeBuf)
&nbsp;
if (!remain) {
if (blockRemain)
this.write(Buffer.alloc(blockRemain))
this.end()
this[CLOSE](fd, _ =&gt; _)
return
}
&nbsp;
if (offset &gt;= length) {
buf = Buffer.allocUnsafe(length)
offset = 0
}
length = buf.length - offset
this[READ](fd, buf, offset, length, pos, remain, blockRemain)
}
})
&nbsp;
class WriteEntrySync extends WriteEntry {
constructor (path, opt) {
super(path, opt)
}
&nbsp;
[LSTAT] () {
this[ONLSTAT](fs.lstatSync(this.absolute))
}
&nbsp;
[SYMLINK] () {
this[ONREADLINK](fs.readlinkSync(this.absolute))
}
&nbsp;
[OPENFILE] () {
this[ONOPENFILE](fs.openSync(this.absolute, 'r'))
}
&nbsp;
[READ] (fd, buf, offset, length, pos, remain, blockRemain) {
let threw = true
try {
const bytesRead = fs.readSync(fd, buf, offset, length, pos)
this[ONREAD](fd, buf, offset, length, pos, remain, blockRemain, bytesRead)
threw = false
} finally {
if (threw)
try { this[CLOSE](fd) } catch (er) {}
}
}
&nbsp;
[CLOSE] (fd) {
fs.closeSync(fd)
}
}
&nbsp;
const WriteEntryTar = warner(class WriteEntryTar extends MiniPass {
constructor (readEntry, opt) {
opt = opt || {}
super(opt)
this.preservePaths = !!opt.preservePaths
this.portable = !!opt.portable
this.strict = !!opt.strict
this.noPax = !!opt.noPax
this.noMtime = !!opt.noMtime
&nbsp;
this.readEntry = readEntry
this.type = readEntry.type
<span class="missing-if-branch" title="if path not taken" >I</span>if (this.type === 'Directory' &amp;&amp; this.portable)
<span class="cstat-no" title="statement not covered" > this.noMtime = true</span>
&nbsp;
this.path = readEntry.path
this.mode = readEntry.mode
if (this.mode)
this.mode = this.mode &amp; 0o7777
this.uid = this.portable ? null : readEntry.uid
this.gid = this.portable ? null : readEntry.gid
this.uname = this.portable ? null : readEntry.uname
this.gname = this.portable ? null : readEntry.gname
this.size = readEntry.size
this.mtime = this.noMtime ? <span class="branch-0 cbranch-no" title="branch not covered" >null </span>: readEntry.mtime
this.atime = this.portable ? null : readEntry.atime
this.ctime = this.portable ? null : readEntry.ctime
this.linkpath = readEntry.linkpath
&nbsp;
if (typeof opt.onwarn === 'function')
this.on('warn', opt.onwarn)
&nbsp;
if (path.isAbsolute(this.path) &amp;&amp; !this.preservePaths) {
const parsed = path.parse(this.path)
this.warn(
'stripping ' + parsed.root + ' from absolute path',
this.path
)
this.path = this.path.substr(parsed.root.length)
}
&nbsp;
this.remain = readEntry.size
this.blockRemain = readEntry.startBlockSize
&nbsp;
this.header = new Header({
path: this.path,
linkpath: this.linkpath,
// only the permissions and setuid/setgid/sticky bitflags
// not the higher-order bits that specify file type
mode: this.mode,
uid: this.portable ? null : this.uid,
gid: this.portable ? null : this.gid,
size: this.size,
mtime: this.noMtime ? <span class="branch-0 cbranch-no" title="branch not covered" >null </span>: this.mtime,
type: this.type,
uname: this.portable ? null : this.uname,
atime: this.portable ? null : this.atime,
ctime: this.portable ? null : this.ctime
})
&nbsp;
if (this.header.encode() &amp;&amp; !this.noPax)
super.write(new Pax({
atime: this.portable ? null : this.atime,
ctime: this.portable ? null : this.ctime,
gid: this.portable ? null : this.gid,
mtime: this.noMtime ? <span class="branch-0 cbranch-no" title="branch not covered" >null </span>: this.mtime,
path: this.path,
linkpath: this.linkpath,
size: this.size,
uid: this.portable ? null : this.uid,
uname: this.portable ? null : this.uname,
dev: this.portable ? null : this.readEntry.dev,
ino: this.portable ? null : this.readEntry.ino,
nlink: this.portable ? null : this.readEntry.nlink
}).encode())
&nbsp;
super.write(this.header.block)
readEntry.pipe(this)
}
&nbsp;
write (data) {
const writeLen = data.length
if (writeLen &gt; this.blockRemain)
throw new Error('writing more to entry than is appropriate')
this.blockRemain -= writeLen
return super.write(data)
}
&nbsp;
end () {
if (this.blockRemain)
this.write(Buffer.alloc(this.blockRemain))
return super.end()
}
})
&nbsp;
WriteEntry.Sync = WriteEntrySync
WriteEntry.Tar = WriteEntryTar
&nbsp;
const getType = stat =&gt;
stat.isFile() ? 'File'
: stat.isDirectory() ? 'Directory'
: stat.isSymbolicLink() ? 'SymbolicLink'
: 'Unsupported'
&nbsp;
module.exports = WriteEntry
&nbsp;</pre></td></tr>
</table></pre>
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