mirror of
https://github.com/titanscouting/tra-analysis.git
synced 2024-11-14 15:16:18 +00:00
72 lines
1.5 KiB
Groff
72 lines
1.5 KiB
Groff
.TH "NPM\-DEDUPE" "1" "December 2018" "" ""
|
|
.SH "NAME"
|
|
\fBnpm-dedupe\fR \- Reduce duplication
|
|
.SH SYNOPSIS
|
|
.P
|
|
.RS 2
|
|
.nf
|
|
npm dedupe
|
|
npm ddp
|
|
|
|
aliases: find\-dupes, ddp
|
|
.fi
|
|
.RE
|
|
.SH DESCRIPTION
|
|
.P
|
|
Searches the local package tree and attempts to simplify the overall
|
|
structure by moving dependencies further up the tree, where they can
|
|
be more effectively shared by multiple dependent packages\.
|
|
.P
|
|
For example, consider this dependency graph:
|
|
.P
|
|
.RS 2
|
|
.nf
|
|
a
|
|
+\-\- b <\-\- depends on c@1\.0\.x
|
|
| `\-\- c@1\.0\.3
|
|
`\-\- d <\-\- depends on c@~1\.0\.9
|
|
`\-\- c@1\.0\.10
|
|
.fi
|
|
.RE
|
|
.P
|
|
In this case, npm help \fBnpm\-dedupe\fP will transform the tree to:
|
|
.P
|
|
.RS 2
|
|
.nf
|
|
a
|
|
+\-\- b
|
|
+\-\- d
|
|
`\-\- c@1\.0\.10
|
|
.fi
|
|
.RE
|
|
.P
|
|
Because of the hierarchical nature of node's module lookup, b and d
|
|
will both get their dependency met by the single c package at the root
|
|
level of the tree\.
|
|
.P
|
|
The deduplication algorithm walks the tree, moving each dependency as far
|
|
up in the tree as possible, even if duplicates are not found\. This will
|
|
result in both a flat and deduplicated tree\.
|
|
.P
|
|
If a suitable version exists at the target location in the tree
|
|
already, then it will be left untouched, but the other duplicates will
|
|
be deleted\.
|
|
.P
|
|
Arguments are ignored\. Dedupe always acts on the entire tree\.
|
|
.P
|
|
Modules
|
|
.P
|
|
Note that this operation transforms the dependency tree, but will never
|
|
result in new modules being installed\.
|
|
.SH SEE ALSO
|
|
.RS 0
|
|
.IP \(bu 2
|
|
npm help ls
|
|
.IP \(bu 2
|
|
npm help update
|
|
.IP \(bu 2
|
|
npm help install
|
|
|
|
.RE
|
|
|