Add "--help"/"-h" and "--version"/"-V" support to all contrib scripts.
Also, update scripts that used "-v" as a short option for "--version"
and use "-V" for the sake of consistency.
Additionally:
* Move version and usage messages to separate convenience functions in
all scripts.
* Add a workaround to paccache to support "--help" and "--version". This
should be replaced by a proper POSIX-compliant command line parser
that supports long options in a future patch.
* Add a "$myver" variable to all scripts and use it whenever we refer to
the program version (e.g. in version messages). Also, use the pacman
version number everywhere instead of using a different versioning
scheme for each contrib script. This is achieved by adding a
"PACKAGE_VERSION" placeholder that is replaced by sed(1) when the
script is built.
* Ensure we always return with exit status 0 if "--help" is used and
return with exit status 1 if we display the usage message due to
invalid arguments.
* Add "AUTOMAKE_OPTIONS = std-options" and add all scripts to
"bin_SCRIPTS" to make `make installcheck` check that installed scripts
actually support the "--help" and "--version" options.
Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
Signed-off-by: Dan McGee <dan@archlinux.org>
Add a read-only variable "$myname" to every contrib script and hardcode
program names instead of relying on "$0". The variable name "$myname"
was chosen because it is already used in pacman and because we use
"$myver" to specify the program version in the official scripts.
Signed-off-by: Lukas Fleischer <archlinux@cryptocrack.de>
Signed-off-by: Dan McGee <dan@archlinux.org>
Before any non-matching line would trigger some perl warnings about
undefined variables. If a line doesn't match, just show it to the user
unprocessed; this is seen with warning and error messages pacman not so
helpfully emits on stdout rather than stderr.
Signed-off-by: Dan McGee <dan@archlinux.org>
This is needed If we want to use sysconfdir,localstatedir and other variables.
Signed-off-by: Nezmer <git@nezmer.info>
Signed-off-by: Dan McGee <dan@archlinux.org>
