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README.md
npm-packlist
Get a list of the files to add from a folder into an npm package.
These can be handed to tar like so to make an npm package tarball:
const Arborist = require('@npmcli/arborist')
const packlist = require('npm-packlist')
const tar = require('tar')
const packageDir = '/path/to/package'
const packageTarball = '/path/to/package.tgz'
const arborist = new Arborist({ path: packageDir })
arborist.loadActual().then((tree) => {
packlist(tree)
.then(files => tar.create({
prefix: 'package/',
cwd: packageDir,
file: packageTarball,
gzip: true
}, files))
.then(_ => {
// tarball has been created, continue with your day
})
})
This uses the following rules:
-
If a
package.json
file is found, and it has afiles
list, then ignore everything that isn't infiles
. Always include the readme, license, licence and copying files, if they exist, as well as the package.json file itself. -
If there's no
package.json
file (or it has nofiles
list), and there is a.npmignore
file, then ignore all the files in the.npmignore
file. -
If there's no
package.json
with afiles
list, and there's no.npmignore
file, but there is a.gitignore
file, then ignore all the files in the.gitignore
file. -
Everything in the root
node_modules
is ignored, unless it's a bundled dependency. If it IS a bundled dependency, and it's a symbolic link, then the target of the link is included, not the symlink itself. -
Unless they're explicitly included (by being in a
files
list, or a!negated
rule in a relevant.npmignore
or.gitignore
), always ignore certain common cruft files:- .npmignore and .gitignore files (their effect is in the package already, there's no need to include them in the package)
- editor junk like
.*.swp
,._*
and.*.orig
files .npmrc
files (these may contain private configs)- The
node_modules/.bin
folder - Waf and gyp cruft like
/build/config.gypi
and.lock-wscript
- Darwin's
.DS_Store
files because wtf are those even npm-debug.log
files at the root of a project
You can explicitly re-include any of these with a
files
list inpackage.json
or a negated ignore file rule.
Only the package.json
file in the very root of the project is ever
inspected for a files
list. Below the top level of the root package,
package.json
is treated as just another file, and no package-specific
semantics are applied.
Interaction between package.json
and .npmignore
rules
In previous versions of this library, the files
list in package.json
was used as an initial filter to drive further tree walking. That is no
longer the case as of version 6.0.0.
If you have a package.json
file with a files
array within, any top
level .npmignore
and .gitignore
files will be ignored.
If a directory is listed in files
, then any rules in nested .npmignore
files within that directory will be honored.
For example, with this package.json:
{
"files": [ "dir" ]
}
a .npmignore
file at dir/.npmignore
(and any subsequent
sub-directories) will be honored. However, a .npmignore
at the root
level will be skipped.
Additionally, with this package.json:
{
"files": ["dir/subdir"]
}
a .npmignore
file at dir/.npmignore
will be honored, as well as dir/subdir/.npmignore
.
Any specific file matched by an exact filename in the package.json files
list will be included, and cannot be excluded, by any .npmignore
files.
API
Same API as ignore-walk, except providing a tree
is required and there are hard-coded file list and rule sets.
The Walker
class requires an arborist tree, and if any bundled dependencies are found will include them as well as their own dependencies in the resulting file set.