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PeaZip: Open-source file compression and encryption software

peazip.github.io

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Re: PeaZip: Open-source file compression and encryption software

#11

Post by shawnz »

maccard wrote: post #10
shawnz wrote: post #3

Earlier quoted context omitted.

Moving files from one directory to another directory on the same filesystem doesn't actually result in any data getting moved, only the directory entries are changed

You’ve made a big assumption about being on the same file system there. We had a CI job that was spending an awful lot of time in fetching cached artifacts. We investigated and it turns out that CI was pulling to %TMP%, but we were actual executing the builds on a separate EBS volume meaning we downloaded and wrote to an EBS volume, then had to copy it to another remote volume, it was super easy to spot on windows, b…

Sure, but you're probably not using PeaZip (which is primarily a GUI front-end for existing compression tools) in CI or containerized environments. For those situations there are specialized tools which are more appropriate.

Re: PeaZip: Open-source file compression and encryption software

#13

Post by baal80spam »

theandrewbailey wrote: post #2

I've been using this for over a decade. I keep using it because it extracts files directly where you want them, instead of extracting to a temp folder, then copying to where you want, multiplying IO traffic by up to 2. It also lets me use 7z files with zstd compression, though I'm not sure which other software supports it.

The trick to do it using the default 7zip file manager is to open the .7z file in the manager (double clicking it, not right clicking it), and extract the archive whenever you want it - it will be extracted straight there with no transition using temporary folder.

Re: PeaZip: Open-source file compression and encryption software

#15

Post by c0l0 »

PeaZip is great software, and doubly so because it is written using Lazarus and compiled with Free Pascal. I highly recommend giving it a try, if only to experience that high quality software can be built using tools that lead you somewhat off the beaten path.

Unfortunately, its lead developer has recently posted[0] that he has to undergo what seems to be complicated, major eye surgery, and that he will probably be unable to continue development :(

[0]: https://old.reddit.com/r/PeaZip/comments/1bn7pu0/communicati...

Re: PeaZip: Open-source file compression and encryption software

#16

Post by lobito14 »

jsheard wrote: post #7
causality0 wrote: post #4

Can anyone explain why this is better than 7zip?

I don't know if this is better, but 7zips developer has an unnerving track record when it comes to security practices. He resisted adopting basic mitigations like DEP and ASLR for a long time, only relenting after a security researcher basically begged him to after finding arbitrary code execution exploits, and he still doesn't want to use any more advanced hardening techniques because they (slightly) bloat the binar…

Can you please provide the source of this thread?

Re: PeaZip: Open-source file compression and encryption software

#17

Post by Sakos »

causality0 wrote: post #4

Can anyone explain why this is better than 7zip?

I've sworn by 7zip since forever and I still use it primarily, but I'd recommend peazip to anybody who wants 7zip but with a better, more convenient GUI (and workflow/behavior). I still think about switching back to peazip (only used it for a few months), but old habits die hard.

Re: PeaZip: Open-source file compression and encryption software

#18

Post by Dwedit »

Programs like 7-zip and PeaZip both have an unusual feature: Ability to explore NT paths that Windows Explorer will refuse to load.

You can go to a path like "\\?\Harddisk0Partition2\" in 7-zip file manager or PeaZip. On my PC, that happens to be the EFI partition. (Need to run as Admin before it lets you access the EFI partition)

Sysinternals WinObj will let you see all the paths in the NT Object Namespace. To convert an NT Object Namespace path into a standard Windows path, put "\\?\GLOBALROOT\" at the beginning of the path. Windows Explorer and the File Dialogs will refuse to open such paths, but many Win32 applications will accept those paths as command line arguments.

Re: PeaZip: Open-source file compression and encryption software

#19

Post by tylerritchie »

lobito14 wrote: post #16
jsheard wrote: post #7

Earlier quoted context omitted.

I don't know if this is better, but 7zips developer has an unnerving track record when it comes to security practices. He resisted adopting basic mitigations like DEP and ASLR for a long time, only relenting after a security researcher basically begged him to after finding arbitrary code execution exploits, and he still doesn't want to use any more advanced hardening techniques because they (slightly) bloat the binar…

Can you please provide the source of this thread?

https://landave.io/2018/01/7-zip-multiple-memory-corruptions...

but also see: https://news.ycombinator.com/item?id=16986377

Re: PeaZip: Open-source file compression and encryption software

#20

Post by maccard »

shawnz wrote: post #11
maccard wrote: post #10

Earlier quoted context omitted.

You’ve made a big assumption about being on the same file system there. We had a CI job that was spending an awful lot of time in fetching cached artifacts. We investigated and it turns out that CI was pulling to %TMP%, but we were actual executing the builds on a separate EBS volume meaning we downloaded and wrote to an EBS volume, then had to copy it to another remote volume, it was super easy to spot on windows, b…

Sure, but you're probably not using PeaZip (which is primarily a GUI front-end for existing compression tools) in CI or containerized environments. For those situations there are specialized tools which are more appropriate.

I’m not in this case, but if something writes to /tmp and then copies it to /data, there is no guarantee that they are on the same device or even network.
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