From a77e638c773d8a492f8c48e8c15474030a7e3d71 Mon Sep 17 00:00:00 2001 From: Lukas Fleischer Date: Mon, 12 Dec 2011 22:36:57 +0100 Subject: contrib/*: Support the "--help" and "--version" options 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 "$myver" variable to all scripts and use it whenever we refer to the program version (e.g. in version messages). Also, use the pacman version number everywhere instead of using a different versioning scheme for each contrib script. This is achieved by adding a "PACKAGE_VERSION" placeholder that is replaced by sed(1) when the script is built. * Ensure we always return with exit status 0 if "--help" is used and return with exit status 1 if we display the usage message due to invalid arguments. * Add "AUTOMAKE_OPTIONS = std-options" and add all scripts to "bin_SCRIPTS" to make `make installcheck` check that installed scripts actually support the "--help" and "--version" options. Signed-off-by: Lukas Fleischer Signed-off-by: Dan McGee --- contrib/pacsysclean.in | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) (limited to 'contrib/pacsysclean.in') diff --git a/contrib/pacsysclean.in b/contrib/pacsysclean.in index c87082e0..17f7681b 100755 --- a/contrib/pacsysclean.in +++ b/contrib/pacsysclean.in @@ -2,23 +2,32 @@ # pacsysclean - Sort installed packages by decreasing installed size. Useful for system clean-up. +declare -r myname='pacsysclean' +declare -r myver='@PACKAGE_VERSION@' + PACMAN_OPTS= usage() { - echo "pacsysclean - Sort installed packages by decreasing installed size." + echo "$myname - Sort installed packages by decreasing installed size." echo - echo "Usage: pacsysclean [options]" + echo "Usage: $myname [options]" echo echo "Options:" echo " -o Specify custom pacman query options (e.g., dt)" echo " -h, --help Show this help message and exit" } +version() { + printf "%s %s\n" "$myname" "$myver" + echo 'Copyright (C) 2011 Eric Bélanger ' +} + if [ -n "$1" ]; then case "$1" in -o) PACMAN_OPTS="${2}" ;; -h|--help) usage; exit 0 ;; + -V|--version) version; exit 0 ;; *) usage; exit 1 ;; esac fi -- cgit v1.2.3