[pacman-dev] Disk space checking branch "complete"

[Bryce Gibson]

> On 16/11/10 18:02, Bryce Gibson wrote:
>> Hi Allan,
>> I just wanted to ask, it looks like your patches will make a sync fail if
it
>> finds there's not enough space, is that correct?
>> Because I'd suggest a warning may be more appropriate, especially for use
>> cases like compressed filesystems.
>> Cheers
>> Bryce
>> ps. I noticed that space checking can be completely disabled via
>> pacman.conf, which may be seen as a suitable solution for people in these
>> types of situation.
> 
> Disabling checking in pacman.conf is what I would recommend in these 
> sort of cases. These are the sort of things we will only find out after 
> we get some widespread usage of the feature. I would be interested in 
> what the size calculations actually do on compressed filesystems.
> 
> Allan
> 

Just FYI :)

One that should succeed:

df -h /asd
Filesystem Size Used Avail Use% Mounted on
/dev/root 463M 381M 82M 83% /

src/pacman/pacman -S --debug nano --dbpath `pwd`/db --root /asd
...
Targets (5): linux-api-headers-2.6.34-1 tzdata-2010o-1 glibc-2.12.1-4
ncurses-5.7-4 nano-2.2.5-1

Total Download Size: 0.00 MB
Total Installed Size: 50.53 MB

Proceed with installation? [Y/n] y
...
debug: checking available disk space
...
debug: partition /, needed 12719, free 20766
debug: installing packages



Or one that "should" fail (I think it _just_ doesn't fit in reality, seems
to fail on the last package, but now I've crashed my machine somewhat, so I
can't confirm for certain):

df -h /asd
Filesystem Size Used Avail Use% Mounted on
/dev/root 463M 381M 82M 83% /

src/pacman/pacman -S --debug python nano --dbpath `pwd`/db --root /asd
...
Targets (24): linux-api-headers-2.6.34-1 tzdata-2010o-1 glibc-2.12.1-4
expat-2.0.1-5 bzip2-1.0.6-1 ncurses-5.7-4 readline-6.1.002-1
 bash-4.1.009-1 gdbm-1.8.3-7 gcc-libs-4.5.1-1 db-5.1.19-3 zlib-1.2.5-2
cracklib-2.8.16-1 pam-1.1.1-2 shadow-4.1.4.2-3
 attr-2.4.44-1 acl-2.2.49-1 gmp-5.0.1-1 libcap-2.19-1 coreutils-8.7-1
perl-5.12.1-3 openssl-1.0.0.a-3 python-3.1.2-2
 nano-2.2.5-1

Total Download Size: 0.00 MB
Total Installed Size: 217.92 MB

Proceed with installation? [Y/n] y
...
debug: partition /, needed 54492, free 20766
debug: returning error 7 from _alpm_check_diskspace : not enough disk space
error: not enough free disk space
Errors occurred, no packages were upgraded.

This is on reiser4 with the lzo compression plugin.

Cheers
Bryce
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