diff options
Diffstat (limited to 'sandbox/testAppNevena/Front/node_modules/cacache/lib/util')
5 files changed, 281 insertions, 0 deletions
diff --git a/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/disposer.js b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/disposer.js new file mode 100644 index 00000000..aa8aed54 --- /dev/null +++ b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/disposer.js @@ -0,0 +1,30 @@ +'use strict' + +module.exports.disposer = disposer + +function disposer (creatorFn, disposerFn, fn) { + const runDisposer = (resource, result, shouldThrow = false) => { + return disposerFn(resource) + .then( + // disposer resolved, do something with original fn's promise + () => { + if (shouldThrow) + throw result + + return result + }, + // Disposer fn failed, crash process + (err) => { + throw err + // Or process.exit? + }) + } + + return creatorFn + .then((resource) => { + // fn(resource) can throw, so wrap in a promise here + return Promise.resolve().then(() => fn(resource)) + .then((result) => runDisposer(resource, result)) + .catch((err) => runDisposer(resource, err, true)) + }) +} diff --git a/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/fix-owner.js b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/fix-owner.js new file mode 100644 index 00000000..90ffece5 --- /dev/null +++ b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/fix-owner.js @@ -0,0 +1,142 @@ +'use strict' + +const util = require('util') + +const chownr = util.promisify(require('chownr')) +const mkdirp = require('mkdirp') +const inflight = require('promise-inflight') +const inferOwner = require('infer-owner') + +// Memoize getuid()/getgid() calls. +// patch process.setuid/setgid to invalidate cached value on change +const self = { uid: null, gid: null } +const getSelf = () => { + if (typeof self.uid !== 'number') { + self.uid = process.getuid() + const setuid = process.setuid + process.setuid = (uid) => { + self.uid = null + process.setuid = setuid + return process.setuid(uid) + } + } + if (typeof self.gid !== 'number') { + self.gid = process.getgid() + const setgid = process.setgid + process.setgid = (gid) => { + self.gid = null + process.setgid = setgid + return process.setgid(gid) + } + } +} + +module.exports.chownr = fixOwner + +function fixOwner (cache, filepath) { + if (!process.getuid) { + // This platform doesn't need ownership fixing + return Promise.resolve() + } + + getSelf() + if (self.uid !== 0) { + // almost certainly can't chown anyway + return Promise.resolve() + } + + return Promise.resolve(inferOwner(cache)).then((owner) => { + const { uid, gid } = owner + + // No need to override if it's already what we used. + if (self.uid === uid && self.gid === gid) + return + + return inflight('fixOwner: fixing ownership on ' + filepath, () => + chownr( + filepath, + typeof uid === 'number' ? uid : self.uid, + typeof gid === 'number' ? gid : self.gid + ).catch((err) => { + if (err.code === 'ENOENT') + return null + + throw err + }) + ) + }) +} + +module.exports.chownr.sync = fixOwnerSync + +function fixOwnerSync (cache, filepath) { + if (!process.getuid) { + // This platform doesn't need ownership fixing + return + } + const { uid, gid } = inferOwner.sync(cache) + getSelf() + if (self.uid !== 0) { + // almost certainly can't chown anyway + return + } + + if (self.uid === uid && self.gid === gid) { + // No need to override if it's already what we used. + return + } + try { + chownr.sync( + filepath, + typeof uid === 'number' ? uid : self.uid, + typeof gid === 'number' ? gid : self.gid + ) + } catch (err) { + // only catch ENOENT, any other error is a problem. + if (err.code === 'ENOENT') + return null + + throw err + } +} + +module.exports.mkdirfix = mkdirfix + +function mkdirfix (cache, p, cb) { + // we have to infer the owner _before_ making the directory, even though + // we aren't going to use the results, since the cache itself might not + // exist yet. If we mkdirp it, then our current uid/gid will be assumed + // to be correct if it creates the cache folder in the process. + return Promise.resolve(inferOwner(cache)).then(() => { + return mkdirp(p) + .then((made) => { + if (made) + return fixOwner(cache, made).then(() => made) + }) + .catch((err) => { + if (err.code === 'EEXIST') + return fixOwner(cache, p).then(() => null) + + throw err + }) + }) +} + +module.exports.mkdirfix.sync = mkdirfixSync + +function mkdirfixSync (cache, p) { + try { + inferOwner.sync(cache) + const made = mkdirp.sync(p) + if (made) { + fixOwnerSync(cache, made) + return made + } + } catch (err) { + if (err.code === 'EEXIST') { + fixOwnerSync(cache, p) + return null + } else + throw err + } +} diff --git a/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/hash-to-segments.js b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/hash-to-segments.js new file mode 100644 index 00000000..445599b5 --- /dev/null +++ b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/hash-to-segments.js @@ -0,0 +1,7 @@ +'use strict' + +module.exports = hashToSegments + +function hashToSegments (hash) { + return [hash.slice(0, 2), hash.slice(2, 4), hash.slice(4)] +} diff --git a/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/move-file.js b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/move-file.js new file mode 100644 index 00000000..c3f9e35e --- /dev/null +++ b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/move-file.js @@ -0,0 +1,67 @@ +'use strict' + +const fs = require('fs') +const util = require('util') +const chmod = util.promisify(fs.chmod) +const unlink = util.promisify(fs.unlink) +const stat = util.promisify(fs.stat) +const move = require('@npmcli/move-file') +const pinflight = require('promise-inflight') + +module.exports = moveFile + +function moveFile (src, dest) { + const isWindows = global.__CACACHE_TEST_FAKE_WINDOWS__ || + process.platform === 'win32' + + // This isn't quite an fs.rename -- the assumption is that + // if `dest` already exists, and we get certain errors while + // trying to move it, we should just not bother. + // + // In the case of cache corruption, users will receive an + // EINTEGRITY error elsewhere, and can remove the offending + // content their own way. + // + // Note that, as the name suggests, this strictly only supports file moves. + return new Promise((resolve, reject) => { + fs.link(src, dest, (err) => { + if (err) { + if (isWindows && err.code === 'EPERM') { + // XXX This is a really weird way to handle this situation, as it + // results in the src file being deleted even though the dest + // might not exist. Since we pretty much always write files to + // deterministic locations based on content hash, this is likely + // ok (or at worst, just ends in a future cache miss). But it would + // be worth investigating at some time in the future if this is + // really what we want to do here. + return resolve() + } else if (err.code === 'EEXIST' || err.code === 'EBUSY') { + // file already exists, so whatever + return resolve() + } else + return reject(err) + } else + return resolve() + }) + }) + .then(() => { + // content should never change for any reason, so make it read-only + return Promise.all([ + unlink(src), + !isWindows && chmod(dest, '0444'), + ]) + }) + .catch(() => { + return pinflight('cacache-move-file:' + dest, () => { + return stat(dest).catch((err) => { + if (err.code !== 'ENOENT') { + // Something else is wrong here. Bail bail bail + throw err + } + // file doesn't already exist! let's try a rename -> copy fallback + // only delete if it successfully copies + return move(src, dest) + }) + }) + }) +} diff --git a/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/tmp.js b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/tmp.js new file mode 100644 index 00000000..0a5a50eb --- /dev/null +++ b/sandbox/testAppNevena/Front/node_modules/cacache/lib/util/tmp.js @@ -0,0 +1,35 @@ +'use strict' + +const fs = require('@npmcli/fs') + +const fixOwner = require('./fix-owner') +const path = require('path') + +module.exports.mkdir = mktmpdir + +function mktmpdir (cache, opts = {}) { + const { tmpPrefix } = opts + const tmpDir = path.join(cache, 'tmp') + return fs.mkdir(tmpDir, { recursive: true, owner: 'inherit' }) + .then(() => { + // do not use path.join(), it drops the trailing / if tmpPrefix is unset + const target = `${tmpDir}${path.sep}${tmpPrefix || ''}` + return fs.mkdtemp(target, { owner: 'inherit' }) + }) +} + +module.exports.withTmp = withTmp + +function withTmp (cache, opts, cb) { + if (!cb) { + cb = opts + opts = {} + } + return fs.withTempDir(path.join(cache, 'tmp'), cb, opts) +} + +module.exports.fix = fixtmpdir + +function fixtmpdir (cache) { + return fixOwner(cache, path.join(cache, 'tmp')) +} |