Plugin to extract 7-Zip 4.10 files

[Mad Doggie]

Is there a plug-in that can decompress archives created by 7-zip v4.12? I would like to use 7Zip to decrease the size of my downloadable components.

Cheers!

[Afrow UK]

You'll have to use 7-Zip's command-line 7z.exe program to decompress 7z files.

You should compress it into your installer, and place it in a folder (e.g. $PLUGINSDIR) on run-time then execute it with nsExec::Exec.

-Stu

[Mad Doggie]

Originally posted by Afrow UK
You'll have to use 7-Zip's command-line 7z.exe program to decompress 7z files. You should compress it into your installer, and place it in a folder (e.g. $PLUGINSDIR) on run-time then execute it with nsExec::Exec.

Bummer. Thanks for the info - I was hoping I could use a native NSIS plug-in and get the same feedback as ZipDLL does. Oh well, I guess nothing on the horizon on this front?

[Afrow UK]

You can use nsExec::ExecToLog to stream the 7z output directly to the installation progress window.

-Stu

[Brummelchen]

7zip went final 7.20.

I would appreciate a plugin using 7zip for archiving like
"nsexec::7zip '"c:\temp\*.txt" /switch'
or another built-in solution...

WinRAR also uses a newer 7zxa.dll instead an bigger exe 7za.exe

[Joel]

Update:

I'm a making a plugin for decompressing 7z files (~60KB DLL), but I need to know if theres one already...

[saivert]

Joel! Just go ahead and make it.

[PerditionC]

If one doesn't really need the 7z format and just wants to use the LZMA compression method, then there is also the ExtractDLLEx or untgz plugins.

[brainsucker]

Some time ago I wrote a simple plugin for uncompressing 7z files with progress reporting. It was based on the console sfx with changed console interface to some kind of nsis wrapper. It was big enough (144 kb), but due to size (32 mb to 27 mb from nsis lzma to 7z file) and time (i've used archive as merge module, which never changes) economy, that really doesn't matter for me.
However I've lost one of my hdd's some weeks ago, so at present time I have no source code of that plugin, just compiled dll.

SetOutPath $INSTDIR\OCR\FRE\Bin
; increase size
AddSize 85000
; use precompressed 7zip fre file
SetCompress off
DetailPrint "Extracting FineReader Engine..."
File /a "Misc\frebin.7z"
SetCompress auto
DetailPrint "Installing FineReader Engine..."
nsis7z::Extract "frebin.7z"
Delete "$INSTDIR\OCR\FRE\Bin\frebin.7z" 

[saivert]

Since the source code for the 7-zip project is open-source there shouldn't be hard to implement this. I might have a crack at it sometime as well. But I don't know about the time. I wrote my own version of unzip plug-in for NSIS one time (based on source code for NSIS' Zip2EXE) and if 7-zip has some easy to use interface it will be doable.

[oborstad]

Any Update on this plugin?

[Brummelchen]

why should it ?

[oborstad]

Ah, Sorry... I mean if there was an updated copy of this plugin with the updated 7-zip files. This plugin's 7zip files aren't up to date, and the source code's not provided (ala 7zip licence). So I just wanted to ask if there was any update on the status of the plugin.

Owen.

[Brummelchen]

write to the author pls

[brainsucker]

Nsis7z plugin updated

Hello everyone

I've spent some time to rewrite (due to lost source code) Nsis7z plugin using the latest 7z (4.64), this time the source code is available, so no one should have problems using/distributing it.

This plugin allows our company to create merge-modules (as 7z archives) with prepacked files used in every release, saving some space (due to better compression ratio) and time (60mb 7z archive compiles to NSIS setup in several seconds, compare that with the time required to pack 250mb of original files).

This post - complete distribution with source, next - stripped with plugin and example only.

Best regards, Nik.