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alt-nodejs10
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root
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usr
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lib
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node_modules
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npm
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lib
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utils
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files >> //opt/alt/alt-nodejs10/root/usr/lib/node_modules/npm/lib/utils/cache-file.js
// XXX use infer-owner or gentle-fs.mkdir here const npm = require('../npm.js') const path = require('path') const chownr = require('chownr') const writeFileAtomic = require('write-file-atomic') const mkdirp = require('mkdirp') const fs = require('graceful-fs') let cache = null let cacheUid = null let cacheGid = null let needChown = typeof process.getuid === 'function' const getCacheOwner = () => { let st try { st = fs.lstatSync(cache) } catch (er) { if (er.code !== 'ENOENT') { throw er } st = fs.lstatSync(path.dirname(cache)) } cacheUid = st.uid cacheGid = st.gid needChown = st.uid !== process.getuid() || st.gid !== process.getgid() } const writeOrAppend = (method, file, data) => { if (!cache) { cache = npm.config.get('cache') } // redundant if already absolute, but prevents non-absolute files // from being written as if they're part of the cache. file = path.resolve(cache, file) if (cacheUid === null && needChown) { getCacheOwner() } const dir = path.dirname(file) const firstMade = mkdirp.sync(dir) if (!needChown) { return method(file, data) } let methodThrew = true try { method(file, data) methodThrew = false } finally { // always try to leave it in the right ownership state, even on failure // let the method error fail it instead of the chownr error, though if (!methodThrew) { chownr.sync(firstMade || file, cacheUid, cacheGid) } else { try { chownr.sync(firstMade || file, cacheUid, cacheGid) } catch (_) {} } } } exports.append = (file, data) => writeOrAppend(fs.appendFileSync, file, data) exports.write = (file, data) => writeOrAppend(writeFileAtomic.sync, file, data)
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