Node.js npm如何处理锁文件

因此，我在另一个npm模块的postinstall npm钩子调用的脚本中运行

npm install xyz

。（我们不必讨论为什么请，但它与npm不支持的可选依赖项有关）

当我运行脚本本身时，npm安装运行得相当快，但当我在postinstall挂钩中安装模块时，脚本会在锁定文件上等待至少1分钟（或者我假设是这样）

当我在npm中启用详细日志级别时，我得到如下输出：

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npm verb addNamed "latest" is being treated as a dist-tag for invert-kv
npm info addNameTag [ 'invert-kv', 'latest' ]
npm verb addNameTag registry:https://registry.npmjs.org/invert-kv already in flight; waiting
npm verb addNamed "1.0.0" is a plain semver version for invert-kv
npm verb afterAdd /Users/path/.npm/invert-kv/1.0.0/package/package.json not in flight; writing
npm verb correctMkdir /Users/path/.npm correctMkdir not in flight; initializing
npm verb afterAdd /Users/path/.npm/invert-kv/1.0.0/package/package.json written
npm verb cache add spec camelcase@^3.0.0
npm verb addNamed ">=3.0.0 <4.0.0" is a valid semver range for camelcase
npm verb addNameRange registry:https://registry.npmjs.org/camelcase not in flight; fetching
npm verb get https://registry.npmjs.org/camelcase not expired, no request
npm verb addNamed "3.0.0" is a plain semver version for camelcase
npm verb afterAdd /Users/path/.npm/camelcase/3.0.0/package/package.json not in flight; writing
npm verb correctMkdir /Users/path/.npm correctMkdir not in flight; initializing
npm verb afterAdd /Users/path/.npm/camelcase/3.0.0/package/package.json written
npm verb correctMkdir /Users/path/.npm/_locks correctMkdir not in flight; initializing

现在看一下的代码，似乎只是将

/Users/path/.npm/_中的所有文件加载到内存中，并尝试修复权限？不确定

correctMkdir
由调用。这似乎是散列文件和一些加密？也不确定

在对一些npm代码进行反向工程后，我通过将
缓存锁过期
，
缓存锁等待
的配置更改为10ms，取得了进展。不幸的是，在正确安装之前，它仍然挂起太久。我怀疑在更改之前和npm正在飞行时没有考虑更改的配置？大概也许是完全不同的事情？：）

谁能告诉我正确的方向？我能做些什么来加快速度吗？
经过一夜的睡眠，现在的安装速度似乎快多了。我猜一些缓存仍然挂在我的_locks文件夹中

所以答案是：

将
cache lock stale
和
cache lock wait
分别临时设置为
10ms
，npm不会等待您的锁文件过期。据我所知，npm正在尝试等待_lock文件夹中的所有锁文件完成，因为我们在npm安装中运行npm install，父进程中的锁文件显然仍在使用中。这更多的是猜测，但我希望它能对将来的人有所帮助。
Hello@Dominik您能为要设置的给定配置共享npm命令吗？@PranavBhagwat check和答案中提到的类似内容…：）
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npm verb addNamed "latest" is being treated as a dist-tag for invert-kv
npm info addNameTag [ 'invert-kv', 'latest' ]
npm verb addNameTag registry:https://registry.npmjs.org/invert-kv already in flight; waiting
npm verb addNamed "1.0.0" is a plain semver version for invert-kv
npm verb afterAdd /Users/path/.npm/invert-kv/1.0.0/package/package.json not in flight; writing
npm verb correctMkdir /Users/path/.npm correctMkdir not in flight; initializing
npm verb afterAdd /Users/path/.npm/invert-kv/1.0.0/package/package.json written
npm verb cache add spec camelcase@^3.0.0
npm verb addNamed ">=3.0.0 <4.0.0" is a valid semver range for camelcase
npm verb addNameRange registry:https://registry.npmjs.org/camelcase not in flight; fetching
npm verb get https://registry.npmjs.org/camelcase not expired, no request
npm verb addNamed "3.0.0" is a plain semver version for camelcase
npm verb afterAdd /Users/path/.npm/camelcase/3.0.0/package/package.json not in flight; writing
npm verb correctMkdir /Users/path/.npm correctMkdir not in flight; initializing
npm verb afterAdd /Users/path/.npm/camelcase/3.0.0/package/package.json written
npm verb correctMkdir /Users/path/.npm/_locks correctMkdir not in flight; initializing

npm verb lock using /Users/path/.npm/_locks/staging-d21af557b41d4821.lock for /Users/path/Desktop/t/node_modules/.staging
npm verb unbuild node_modules/.staging/abbrev-ac014442
npm verb unbuild node_modules/.staging/ansi-regex-12e09986
npm verb unbuild node_modules/.staging/ansi-styles-1359ba2f
npm verb unbuild node_modules/.staging/aproba-d9971840
npm verb unbuild node_modules/.staging/array-find-index-c1ddfc4c
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