mirror of
https://github.com/titanscouting/tra-analysis.git
synced 2024-11-13 22:56:18 +00:00
115 lines
4.8 KiB
Groff
115 lines
4.8 KiB
Groff
.TH "NPM\-DOCTOR" "1" "December 2018" "" ""
|
||
.SH "NAME"
|
||
\fBnpm-doctor\fR \- Check your environments
|
||
.SH SYNOPSIS
|
||
.P
|
||
.RS 2
|
||
.nf
|
||
npm doctor
|
||
.fi
|
||
.RE
|
||
.SH DESCRIPTION
|
||
.P
|
||
\fBnpm doctor\fP runs a set of checks to ensure that your npm installation has
|
||
what it needs to manage your JavaScript packages\. npm is mostly a standalone tool, but it does
|
||
have some basic requirements that must be met:
|
||
.RS 0
|
||
.IP \(bu 2
|
||
Node\.js and git must be executable by npm\.
|
||
.IP \(bu 2
|
||
The primary npm registry, \fBregistry\.npmjs\.com\fP, or another service that uses
|
||
the registry API, is available\.
|
||
.IP \(bu 2
|
||
The directories that npm uses, \fBnode_modules\fP (both locally and globally),
|
||
exist and can be written by the current user\.
|
||
.IP \(bu 2
|
||
The npm cache exists, and the package tarballs within it aren't corrupt\.
|
||
|
||
.RE
|
||
.P
|
||
Without all of these working properly, npm may not work properly\. Many issues
|
||
are often attributable to things that are outside npm's code base, so \fBnpm
|
||
doctor\fP confirms that the npm installation is in a good state\.
|
||
.P
|
||
Also, in addition to this, there are also very many issue reports due to using
|
||
old versions of npm\. Since npm is constantly improving, running \fBnpm@latest\fP is
|
||
better than an old version\.
|
||
.P
|
||
\fBnpm doctor\fP verifies the following items in your environment, and if there are
|
||
any recommended changes, it will display them\.
|
||
.SS \fBnpm ping\fP
|
||
.P
|
||
By default, npm installs from the primary npm registry, \fBregistry\.npmjs\.org\fP\|\.
|
||
\fBnpm doctor\fP hits a special ping endpoint within the registry\. This can also be
|
||
checked with \fBnpm ping\fP\|\. If this check fails, you may be using a proxy that
|
||
needs to be configured, or may need to talk to your IT staff to get access over
|
||
HTTPS to \fBregistry\.npmjs\.org\fP\|\.
|
||
.P
|
||
This check is done against whichever registry you've configured (you can see
|
||
what that is by running \fBnpm config get registry\fP), and if you're using a
|
||
private registry that doesn't support the \fB/whoami\fP endpoint supported by the
|
||
primary registry, this check may fail\.
|
||
.SS \fBnpm \-v\fP
|
||
.P
|
||
While Node\.js may come bundled with a particular version of npm, it's the
|
||
policy of the CLI team that we recommend all users run \fBnpm@latest\fP if they
|
||
can\. As the CLI is maintained by a small team of contributors, there are only
|
||
resources for a single line of development, so npm's own long\-term support
|
||
releases typically only receive critical security and regression fixes\. The
|
||
team believes that the latest tested version of npm is almost always likely to
|
||
be the most functional and defect\-free version of npm\.
|
||
.SS \fBnode \-v\fP
|
||
.P
|
||
For most users, in most circumstances, the best version of Node will be the
|
||
latest long\-term support (LTS) release\. Those of you who want access to new
|
||
ECMAscript features or bleeding\-edge changes to Node's standard library may be
|
||
running a newer version, and some of you may be required to run an older
|
||
version of Node because of enterprise change control policies\. That's OK! But
|
||
in general, the npm team recommends that most users run Node\.js LTS\.
|
||
.SS \fBnpm config get registry\fP
|
||
.P
|
||
Some of you may be installing from private package registries for your project
|
||
or company\. That's great! Others of you may be following tutorials or
|
||
StackOverflow questions in an effort to troubleshoot problems you may be
|
||
having\. Sometimes, this may entail changing the registry you're pointing at\.
|
||
This part of \fBnpm doctor\fP just lets you, and maybe whoever's helping you with
|
||
support, know that you're not using the default registry\.
|
||
.SS \fBwhich git\fP
|
||
.P
|
||
While it's documented in the README, it may not be obvious that npm needs Git
|
||
installed to do many of the things that it does\. Also, in some cases
|
||
– especially on Windows – you may have Git set up in such a way that it's not
|
||
accessible via your \fBPATH\fP so that npm can find it\. This check ensures that Git
|
||
is available\.
|
||
.SS Permissions checks
|
||
.RS 0
|
||
.IP \(bu 2
|
||
Your cache must be readable and writable by the user running npm\.
|
||
.IP \(bu 2
|
||
Global package binaries must be writable by the user running npm\.
|
||
.IP \(bu 2
|
||
Your local \fBnode_modules\fP path, if you're running \fBnpm doctor\fP with a project
|
||
directory, must be readable and writable by the user running npm\.
|
||
|
||
.RE
|
||
.SS Validate the checksums of cached packages
|
||
.P
|
||
When an npm package is published, the publishing process generates a checksum
|
||
that npm uses at install time to verify that the package didn't get corrupted
|
||
in transit\. \fBnpm doctor\fP uses these checksums to validate the package tarballs
|
||
in your local cache (you can see where that cache is located with \fBnpm config
|
||
get cache\fP, and see what's in that cache with \fBnpm cache ls\fP – probably more
|
||
than you were expecting!)\. In the event that there are corrupt packages in your
|
||
cache, you should probably run \fBnpm cache clean\fP and reset the cache\.
|
||
.SH SEE ALSO
|
||
.RS 0
|
||
.IP \(bu 2
|
||
npm help bugs
|
||
.IP \(bu 2
|
||
npm help help
|
||
.IP \(bu 2
|
||
npm help ping
|
||
|
||
.RE
|
||
|