Archiver v0.14.3 
a streaming interface for archive generation
Install
npm install archiver --save
You can also use npm install https://github.com/archiverjs/node-archiver/archive/master.tar.gz to test upcoming versions.
Archiver
create(format, options)
Creates an Archiver instance based on the format (zip, tar, etc) passed. Parameters can be passed directly to Archiver constructor for convenience.
registerFormat(format, module)
Registers an archive format. Format modules are essentially transform streams with a few required methods. They will be further documented once a formal spec is in place.
Instance Methods
Inherits Transform Stream methods.
abort()
Aborts the archiving process, taking a best-effort approach, by:
- removing any pending queue tasks
- allowing any active queue workers to finish
- detaching internal module pipes
- ending both sides of the Transform stream
It will NOT drain any remaining sources.
append(input, data)
Appends an input source (text string, buffer, or stream) to the instance. When the instance has received, processed, and emitted the input, the entry event is fired.
Replaced #addFile in v0.5.
archive.append('string', { name:'string.txt' }); archive.append(new Buffer('string'), { name:'buffer.txt' }); archive.append(fs.createReadStream('mydir/file.txt'), { name:'stream.txt' }); archive.append(null, { name:'dir/' });
bulk(mappings)
Appends multiple entries from passed array of src-dest mappings. A lazystream wrapper is used to prevent issues with open file limits.
Globbing patterns are supported through use of the bundled file-utils module.
The data property can be set (per src-dest mapping) to define data for matched entries.
archive.bulk([ { src: ['mydir/**'], data: { date: new Date() } }, { expand: true, cwd: 'mydir', src: ['**'], dest: 'newdir' } ]);
For more detail on this feature, please see BULK.md.
directory(dirpath[, destpath, data])
Appends a directory and its files, recusively, given its dirpath. This is meant to be a simplier approach to something previously only possible with bulk. The use of destpath allows one to define a custom destination path within the resulting archive and data allows for setting data on each entry appended.
// mydir/ -> archive.ext/mydir/ archive.directory('mydir'); // mydir/ -> archive.ext/abc/ archive.directory('mydir', 'abc'); // mydir/ -> archive.ext/ archive.directory('mydir', false, { date: new Date() });
file(filepath, data)
Appends a file given its filepath using a lazystream wrapper to prevent issues with open file limits. When the instance has received, processed, and emitted the file, the entry event is fired.
archive.file('mydir/file.txt', { name:'file.txt' });
finalize()
Finalizes the instance and prevents further appending to the archive structure (queue will continue til drained). The end, close or finish events on the destination stream may fire right after calling this method so you should set listeners beforehand to properly detect stream completion.
You must call this method to get a valid archive and end the instance stream.
pointer()
Returns the current byte length emitted by archiver. Use this in your end callback to log generated size.
Events
Inherits Transform Stream events.
entry
Fired when the entry's input has been processed and appended to the archive. Passes entry data as first argument.
Zip
Options
comment string
Sets the zip comment.
statConcurrency number
Sets the number of workers used to process the internal fs stat queue. Defaults to 4.
store boolean
If true, all entries will be archived without compression. Defaults to false.
zlib object
Passed to node's zlib module to control compression. Options may vary by node version.
Entry Data
name string required
Sets the entry name including internal path.
date string|Date
Sets the entry date. This can be any valid date string or instance. Defaults to current time in locale.
When using the bulk or file methods, fs stat data is used as the default value.
store boolean
If true, this entry will be archived without compression. Defaults to global store option.
comment string
Sets the entry comment.
mode number
Sets the entry permissions. Defaults to octal 0755 (directory) or 0644 (file).
When using the bulk or file methods, fs stat data is used as the default value.
stats fs.Stats
Sets the fs stat data for this entry. This allows for reduction of fs stat calls when stat data is already known.
Tar
Options
gzip boolean
Compresses the tar archive using gzip, default is false.
gzipOptions object
Passed to node's zlib module to control compression. Options may vary by node version.
statConcurrency number
Sets the number of workers used to process the internal fs stat queue. Defaults to 4.
Entry Data
name string required
Sets the entry name including internal path.
date string|Date
Sets the entry date. This can be any valid date string or instance. Defaults to current time in locale.
When using the bulk or file methods, fs stat data is used as the default value.
mode number
Sets the entry permissions. Defaults to octal 0755 (directory) or 0644 (file).
When using the bulk or file methods, fs stat data is used as the default value.
stats fs.Stats
Sets the fs stat data for this entry. This allows for reduction of fs stat calls when stat data is already known.
Custom Formats
Archiver ships with out of the box support for TAR and ZIP archives. You can register additional formats with registerFormat.
Libraries
Archiver makes use of several libraries/modules to avoid duplication of efforts.