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|
#!/bin/sh
#
# Copyright (c) 2009
# Dominic Fandrey <kamikaze@bsdforen.de>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
readonly name=distviper
readonly version=1.1
verbose=
demo=
quiet=
interactive=
# Determine portsdir
portsdir="$(make -V PORTSDIR -f /usr/share/mk/bsd.port.mk)"
if [ ! -d "$portsdir" ]; then
echo "The PORTSDIR '$portsdir' is missing."
exit 1
fi
# Determine distdir
distdir="$(make -V DISTDIR -f /usr/share/mk/bsd.port.mk)"
if [ ! -d "$distdir" ]; then
echo "The DISTDIR '$distdir' is missing."
exit 2
fi
# Extract file from distinfo.
extractFileCmd="sed -E -e 's/^[^(]*\(//1' -e 's/\).*$//1'"
# Display help.
printHelp() {
echo "$name v$version
usage: $name [-d] [-h] [-i] [-q] [-v] [fast|thorough]"
}
#
# Handle parameters.
#
# @param $1
# The parameter to handle.
# @param $verbose
# Is set to create verbose output.
# @param $demo
# Is set to only print the output that would occur.
# @param $quiet
# Is set to act without creating any output.
# @return
# Returns 0 if the processed parameter was a valid parameter,
# returns 1 if not.
#
readParams() {
case "$1" in
"-d" | "--demo")
demo=1
return 0
;;
"-h" | "--help")
printHelp
exit 0
;;
"-i" | "--interactive")
interactive=-i
return 0
;;
"-q" | "--quiet")
quiet=1
return 0
;;
"-v" | "--verbose")
verbose=1
return 0
;;
-? | --*)
return 1
;;
-*)
# Split parameters.
# first parameter
readParams "${1%${1#-?}}" || return $?
# remaining parameters
readParams "-${1#-?}"
return $?
;;
*)
return 1
;;
esac
}
#
# This algorithm outputs the distfiles of installed ports. If a port downloads
# a distfile through depending on the fetch target of another port, it
# is missed, in case that other port is not installed as well.
#
# @param $portsdir
# The direcotry holding the ports tree.
#
getDistFiles_fast() {
for port in $(pkg_info -qoa); {
if [ -e "$portsdir/$port/distinfo" ]; then
eval "$extractFileCmd '$portsdir/$port/distinfo'" | uniq
fi
}
}
#
# This algorithm outputs the distfiles of all ports.
#
# @param $portsdir
# The direcotry holding the ports tree.
#
getDistFiles_thorough() {
find -H "$portsdir" -type f -name distinfo | \
eval "xargs $extractFileCmd" | uniq
}
# The current parameter processing stage.
stage=params
# The selected algorithm for finding distfiles to keep.
algorithm=thorough
# Parse the command line parameters.
for command; {
# Read parameters until an unknown one is encountered.
# In that case switch into command stage.
if [ "$stage" = "params" ]; then
if ! readParams "$command"; then
stage=command
fi
fi
# All parameters have been read, now either nothing or a mode
# command should occur.
if [ "$stage" = "command" ]; then
stage=end
case "$command" in
thorough | fast)
algorithm="$command"
;;
-*)
echo "$name: Unknown parameter '$command'" \
"encountered, exiting." 1>&2
return 1
;;
*)
echo "$name: Unknown command '$command'" \
"encountered, exiting." 1>&2
return 2
;;
esac
# Skip everything following and continue with the next
# argument.
continue
fi
# Still being in the loop at this stage means unexpected parameters
# have been encountered.
if [ "$stage" = "end" ]; then
echo "$name: The command '$command' is not allowed here, only" \
"one command at a time is permitted." 1>&2
return 3
fi
}
# Check for inprobable options.
if [ -n "$interactive" -a -n "$demo" ]; then
echo "$name: Interactive mode is ignored in demo mode." 1>&2
fi
test -n "$verbose" && echo "Create a list of up to date distfiles to keep" \
"using a $algorithm algorithm:"
# Create the list of files to keep, using the selected algorithm.
keepFiles="$(eval "getDistFiles_$algorithm" | sort -u)"
if [ -n "$verbose" ]; then
echo "$(($(echo "$keepFiles" | wc -l))) files recorded for keeping."
echo "Search and delete outdated distfiles:"
fi
# Files before deletion.
filesCount="$(($(find -H "$distdir" -type f|wc -l)))"
filesDelete=0
# Seek and destroy files not in the $keepFiles list.
for file in $(find -H "$distdir" -type f); {
file="${file#$distdir/}"
if (echo "$keepFiles" | grep -qx "$file"); then
test -n "$verbose" && echo "keep $file"
else
test -z "$quiet" && echo "delete $file"
test -z "$demo" && rm $interactive "$distdir/$file"
filesDelete=$(($filesDelete + 1))
fi
}
# The number of deleted files
filesDeleted="$(($filesCount - $(find -H "$distdir" -type f|wc -l)))"
test -z "$demo" && find -H -d "$distdir" -type d -exec rmdir \{} \; 2> /dev/null
if [ -n "$verbose" ]; then
echo "$filesDelete files were suggested for deletion."
echo "$filesDeleted files of $filesCount have been removed."
fi
return 0
|
