Difference between revisions of "User:Allan/Pacman OptDepends"

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{{out of date | Output related tasks are implemented in pacman-4.1}}
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=The Idea=
 
=The Idea=
  
 
Currently '''optdepends''' in pacman serve no purpose other than informational.  It would be good to "improve" this somewhat.
 
Currently '''optdepends''' in pacman serve no purpose other than informational.  It would be good to "improve" this somewhat.
  
=How to improve?=
+
=Current Situation=
  
 
'''example package with optdepends'''
 
'''example package with optdepends'''
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  Optional Deps : tk: for IDLE, pynche and modulator
 
  Optional Deps : tk: for IDLE, pynche and modulator
  
'''pacman recognises installed optdepends'''
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=How to improve?=
 +
 
 +
Everything marked with ''[done]'' is implemented in the optdep branch of [https://github.com/moben/pacman this repo], but probably won't land in pacman before 4.1.
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Please note that this branch is frequently rebased onto (pacman upstream) master, to keep it up to date.
 +
 
 +
 
 +
'''pacman recognises installed optdepends'''  ''[done]''
 
  > pacman -S --asdep tk
 
  > pacman -S --asdep tk
 
  > pacman -Qi python
 
  > pacman -Qi python
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  Required By: python (optional)
 
  Required By: python (optional)
  
'''information about optdepends is not output if an optdepends package is installed'''
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'''information about optdepends is not output if an optdepends package is installed'''  ''[done]''
 
  > pacman -S tk
 
  > pacman -S tk
 
  > pacman -S python
 
  > pacman -S python
 
  (no optional dependencies notification output)
 
  (no optional dependencies notification output)
  
'''optdepends are not orphans unless a flag is specified'''
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this is also smart when installing both at the same time and does the right thing  ''[done]''
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 +
information is shown if an option is set in pacman.conf  ''[done]''
 +
> pacman -S tk
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> pacman -S python
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Optional Deps : tk: for IDLE, pynche and modulator [installed]
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 +
'''optdepends are not orphans unless a flag is specified'''  ''[done]''
 
  > pacman -Qtd
 
  > pacman -Qtd
 
  > pacman -Qtd --optdep
 
  > pacman -Qtd --optdep
 
  tk 8.5.6-1 (optdepend for python)
 
  tk 8.5.6-1 (optdepend for python)
  
'''optdepends can be removed with -Rs'''
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'''packages which are only optrequired get a nonfatal warning when trying to remove them'''  ''[done]''
> pacman -Rs python
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Remove (2): python-2.6.1-1  tk-8.5.6-1
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+
'''packages which are only optrequired get a nonfatal warning'''
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  > pacman -R tk
 
  > pacman -R tk
 
  checking dependencies...
 
  checking dependencies...
  :: python: optionally requires tk: for IDLE, pynche and modulator
+
  :: python: optionally requires tk (for IDLE, pynche and modulator)
 
   
 
   
 
  Remove (1): tk-8.5.10-1
 
  Remove (1): tk-8.5.10-1
  
'''optdeps are not recursively removed if there is still a package needing them'''
+
'''optdepends can be removed with -Rs'''  ''[done]''
 +
> pacman -Rs python
 +
Remove (2): python-2.6.1-1  tk-8.5.6-1
 +
 
 +
'''optdeps are not recursively removed if there is still a package needing them'''  ''[done]''
  
 
Suppose tk, python and git are installed. python and git optdepend on tk.
 
Suppose tk, python and git are installed. python and git optdepend on tk.
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Note that this only affects automatic recursion, optdepends can still manually be removed (see above)
 
Note that this only affects automatic recursion, optdepends can still manually be removed (see above)
  
'''cascading only affects optrequires if a flag is given'''
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'''if a flag is given, optdeps are recursively removed even if there is still a package needing them'''  ''[done]''
  > pacman -Rc tk
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checking dependencies...
+
Suppose tk, python and git are installed. python and git optdepend on tk.
+
 
Remove (1): tk-8.5.10-1
+
  > pacman -Rs --optdeps git
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  > pacman -Rc --optdepends tk
+
 
  checking dependencies...
 
  checking dependencies...
 +
:: python: optionally requires tk (for IDLE, pynche and modulator)
 
   
 
   
  Remove (2): tk-8.5.10-1 python-3.2.1-1
+
  Remove (2): git-1.7.6-1 tk-8.5.10-1
 
   
 
   
 
====Other Ideas====
 
====Other Ideas====
* A flag/configuration option to install a packages optdepends by default
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* A flag/configuration option to install a packages optdepends by default ''[done]''
* Add option to tell pacman if you want it to ask you about installing each single optdepend
+
* Add option to tell pacman if you want it to ask you about installing each single optdepend ''[done]''
* Add option to tell pacman to list optdepends even when installed and indicate install status of each
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* Add option to tell pacman to list optdepends even when installed and indicate install status of each ''[done]''

Latest revision as of 03:39, 15 April 2013

Tango-view-refresh-red.pngThis article or section is out of date.Tango-view-refresh-red.png

Reason: Output related tasks are implemented in pacman-4.1 (Discuss in User talk:Allan/Pacman OptDepends#)

The Idea

Currently optdepends in pacman serve no purpose other than informational. It would be good to "improve" this somewhat.

Current Situation

example package with optdepends

> pacman -S python
Optional dependencies for python
    tk: for IDLE, pynche and modulator
> pacman -Qi python
Optional Deps : tk: for IDLE, pynche and modulator

How to improve?

Everything marked with [done] is implemented in the optdep branch of this repo, but probably won't land in pacman before 4.1. Please note that this branch is frequently rebased onto (pacman upstream) master, to keep it up to date.


pacman recognises installed optdepends [done]

> pacman -S --asdep tk
> pacman -Qi python
Optional Deps : tk: for IDLE, pynche and modulator [installed]
> pacman -Qi tk
Required By: python (optional)

information about optdepends is not output if an optdepends package is installed [done]

> pacman -S tk
> pacman -S python
(no optional dependencies notification output)

this is also smart when installing both at the same time and does the right thing [done]

information is shown if an option is set in pacman.conf [done]

> pacman -S tk
> pacman -S python
Optional Deps : tk: for IDLE, pynche and modulator [installed]

optdepends are not orphans unless a flag is specified [done]

> pacman -Qtd
> pacman -Qtd --optdep
tk 8.5.6-1 (optdepend for python)

packages which are only optrequired get a nonfatal warning when trying to remove them [done]

> pacman -R tk
checking dependencies...
:: python: optionally requires tk (for IDLE, pynche and modulator)

Remove (1): tk-8.5.10-1

optdepends can be removed with -Rs [done]

> pacman -Rs python
Remove (2): python-2.6.1-1  tk-8.5.6-1

optdeps are not recursively removed if there is still a package needing them [done]

Suppose tk, python and git are installed. python and git optdepend on tk.

> pacman -Rs git
checking dependencies...

Remove (1): git-1.7.6-1

> pacman -Rs git python
checking dependencies...

Remove (3): git-1.7.6-1 python-3.2.1-1 tk-8.5.10-1

Note that this only affects automatic recursion, optdepends can still manually be removed (see above)

if a flag is given, optdeps are recursively removed even if there is still a package needing them [done]

Suppose tk, python and git are installed. python and git optdepend on tk.

> pacman -Rs --optdeps git
checking dependencies...
:: python: optionally requires tk (for IDLE, pynche and modulator)

Remove (2): git-1.7.6-1 tk-8.5.10-1

Other Ideas

  • A flag/configuration option to install a packages optdepends by default [done]
  • Add option to tell pacman if you want it to ask you about installing each single optdepend [done]
  • Add option to tell pacman to list optdepends even when installed and indicate install status of each [done]