| -zip64 | Default is disabled. |
| -zipfile | Use the "Stream" option to force the creation of a streamed zip file. |
| -member-name | Default is '-'. |
| -stream | If the "zipfile" option is specified, including this option will trigger the creation of a streamed zip file. Default: Always enabled when writing to "stdout", otherwise disabled. |
| -method | Valid method names are * store Store without compression * deflate Use Deflate compression [Deflault] * bzip2 Use Bzip2 compression * lzma Use LZMA compression * xz Use xz compression * zstd Use Zstandard compression Note that Lzma compress needs "IO::Compress::Lzma" to be installed. Note that Zstd compress needs "IO::Compress::Zstd" to be installed. Default is "deflate". |
| -0-1-2-3-4-5-6-7-8-9 | -0 means no compression and -9 for maximum compression. Default is 6 |
| -version | Display version number |
| -help | Display help |
NAME
streamzip - create a zip file from stdin
SYNOPSIS
producer | streamzip [opts] | consumer
producer | streamzip [opts] -zipfile=output.zipDESCRIPTION
This program will read data from "stdin", compress it into a zip container and, by default, write a streamed zip file to "stdout". No temporary files are created.
The zip container written to "stdout" is, by necessity, written in streaming format. Most programs that read Zip files can cope with a streamed zip file, but if interoperability is important, and your workflow allows you to write the zip file directly to disk you can create a non-streamed zip file using the "zipfile" option.
OPTIONS
- -zip64
Default is disabled.
- -zipfile=F
Use the "Stream" option to force the creation of a streamed zip file.
- -member-name=M
Default is '-'.
- -stream
If the "zipfile" option is specified, including this option will trigger the creation of a streamed zip file.
Default: Always enabled when writing to "stdout", otherwise disabled.
- -method=M
Valid method names are
bash* store Store without compression * deflate Use Deflate compression [Deflault] * bzip2 Use Bzip2 compression * lzma Use LZMA compression * xz Use xz compression * zstd Use Zstandard compressionNote that Lzma compress needs "IO::Compress::Lzma" to be installed.
Note that Zstd compress needs "IO::Compress::Zstd" to be installed.
Default is "deflate".
- -0, -1, -2, -3, -4, -5, -6, -7, -8, -9
-0 means no compression and -9 for maximum compression.
Default is 6
- -version
Display version number
- -help
Display help
Examples
Create a zip file bt reading daa from stdin
$ echo Lorem ipsum dolor sit | perl ./bin/streamzip >abcd.zipCheck the contents of "abcd,zip" with the standard "unzip" utility
Archive: abcd.zip
Length Date Time Name
--------- ---------- ----- ----
22 2021-01-08 19:45 -
--------- -------
22 1 fileNotice how the "Name" is set to "-". That is the default for a few zip utilities whwre the member name is not given.
If you want to explicitly name the file, use the "-member-name" option as follows
$ echo Lorem ipsum dolor sit | perl ./bin/streamzip -member-name latin >abcd.zip
$ unzip -l abcd.zip
Archive: abcd.zip
Length Date Time Name
--------- ---------- ----- ----
22 2021-01-08 19:47 latin
--------- -------
22 1 fileWhen to write a Streamed Zip File
A Streamed Zip File is useful in situations where you cannot seek backwards/forwards in the file.
A good examples is when you are serving dynamic content from a Web Server straight into a socket without needing to create a temporary zip file in the filesystsm.
Similarly if your workfow uses a Linux pipelined commands.
SUPPORT
General feedback/questions/bug reports should be sent to <https://github.com/pmqs/IO-Compress/issues> (preferred) or <https://rt.cpan.org/Public/Dist/Display.html?Name=IO-Compress>.
AUTHOR
Paul Marquess [email protected].
COPYRIGHT
Copyright (c) 2019-2024 Paul Marquess. All rights reserved.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.