Arch Linux

newdave

Member

Registered: 2011-07-06

Posts: 15

[SOLVED] Does "Pacman -T" Actually Work?

Among all the Pacman operations -T still remains a mystery to me. According to man page, it is supposed to list all the unsatisfied dependencies of a package but it does not work at all (for me). Commands like "pacman -T vlc"  either print nothing or just print the name of the provided package; no matter the dependencies installed or not. Would somebody help me about the usage of this operation?

Last edited by newdave (2011-08-17 17:42:53)

Awebb

Member

Registered: 2010-05-06

Posts: 6,688

Re: [SOLVED] Does "Pacman -T" Actually Work?

I even don't know how to create such a conflict without manually screwing with the database. Pacman does not allow me to install a package without it's deps (at least there's nothing in the man page). Are you sure you have unmet dependencies?

karol

Archivist

Registered: 2009-05-06

Posts: 25,440

Re: [SOLVED] Does "Pacman -T" Actually Work?

'pacman -Rdd foo' will let you remove package foo even if it's a dependency for another package.

newdave

Member

Registered: 2011-07-06

Posts: 15

Re: [SOLVED] Does "Pacman -T" Actually Work?

I even don't know how to create such a conflict without manually screwing with the database. Pacman does not allow me to install a package without it's deps (at least there's nothing in the man page). Are you sure you have unmet dependencies?

I was testing this feature on an uninstall package (vlc). So some of the dependencies are definitely not installed. I just want to know the function of Pacman -T.

'pacman -Rdd foo' will let you remove package foo even if it's a dependency for another package.

I don't want to remove anything.

Last edited by newdave (2011-08-17 16:30:14)

falconindy

Developer

From: New York, USA

Registered: 2009-10-22

Posts: 4,111

Website

Re: [SOLVED] Does "Pacman -T" Actually Work?

You've got the usage backwards. You specify dependencies that you suspect might be missing, and pacman checks against the database, printing any dependency that isn't met.

$ pacman -T 'notalib>=1.0' 'bash' 'notaprog' 'linux<3.0'
notalib>=1.0
notaprog
linux<3.0

makepkg (and probably pacman) would cease to function if this was broken. It's bread and butter functionality for dependency resolution in alpm.

Last edited by falconindy (2011-08-17 17:59:10)

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newdave

Member

Registered: 2011-07-06

Posts: 15

Re: [SOLVED] Does "Pacman -T" Actually Work?

You've got the usage backwards. You specify dependencies that you suspect might be missing, and pacman checks against the database, printing any dependency that isn't met.

$ pacman -T 'notalib>=1.0' 'bash' 'notaprog' 'linux<3.0'
notalib>=1.0
notaprog
linux<3.0

makepkg (and probably pacman) would cease to function if this was broken. It's bread and butter functionality for dependency resolution in pacman.

I see. Thanks.