apt-cyg/apt-cyg

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#!/bin/bash
# apt-cyg: install tool for cygwin similar to debian apt-get
# The MIT License (MIT)
#
# Copyright (c) 2013 Trans-code Design
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
# this script requires some packages
if ! type awk bzip2 tar wget xz &>/dev/null
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then
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echo You must install wget, tar, gawk, xz and bzip2 to use apt-cyg.
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exit 1
fi
[ $HOSTTYPE = x86_64 ] && ARCH=x86_64 || ARCH=x86
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function usage()
{
echo apt-cyg: Installs and removes Cygwin packages.
echo ' "apt-cyg install <package names>" to install packages'
echo ' "apt-cyg remove <package names>" to remove packages'
echo ' "apt-cyg update" to update setup.ini'
echo ' "apt-cyg show" to show installed packages'
echo ' "apt-cyg find <patterns>" to find packages matching patterns'
echo ' "apt-cyg describe <patterns>" to describe packages matching patterns'
echo ' "apt-cyg packageof <commands or files>" to locate parent packages'
echo Options:
echo ' --mirror, -m <url> : set mirror'
echo ' --cache, -c <dir> : set cache'
echo ' --file, -f <file> : read package names from file'
echo ' --noupdate, -u : dont update setup.ini from mirror'
echo ' --help'
echo ' --version'
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}
function version()
{
echo 'apt-cyg version 0.59'
echo 'Written by Stephen Jungels'
echo
echo 'Copyright (c) 2005-9 Stephen Jungels. Released under the GPL.'
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}
function findworkspace()
{
# default working directory and mirror
mirror=http://mirrors.kernel.org/sourceware/cygwin
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cache=/setup
# work wherever setup worked last, if possible
if test -e /etc/setup/last-cache
then
tmp="`head -1 /etc/setup/last-cache`"
cache="`cygpath -au "$tmp"`"
fi
if test -e /etc/setup/last-mirror
then
mirror="`head -1 /etc/setup/last-mirror`"
fi
mirrordir="`echo "$mirror" | sed -e "s/:/%3a/g" -e "s:/:%2f:g"`"
echo Working directory is $cache
echo Mirror is $mirror
mkdir -p "$cache/$mirrordir"
cd "$cache/$mirrordir"
}
function getsetup()
{
if test "$noscripts" == "0" -a "$noupdate" == "0"
then
touch setup.ini
mv setup.ini setup.ini-save
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wget -N $mirror/$arch/setup.bz2
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if test -e setup.bz2 && test $? -eq 0
then
bunzip2 setup.bz2
mv setup setup.ini
echo Updated setup.ini
else
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wget -N $mirror/$arch/setup.ini
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if test -e setup.ini && test $? -eq 0
then
echo Updated setup.ini
else
mv setup.ini-save setup.ini
echo Error updating setup.ini, reverting
fi
fi
fi
}
function checkpackages()
{
if test "-$packages-" = "--"
then
echo Nothing to do, exiting
exit 0
fi
}
# process options
noscripts=0
noupdate=0
file=""
dofile=0
command=""
filepackages=""
packages=""
while test $# -gt 0
do
case "$1" in
--mirror | -m)
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echo "$2" > /etc/setup/last-mirror
shift 2
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;;
--cache | -c)
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cygpath -aw "$2" > /etc/setup/last-cache
shift 2
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;;
--noscripts)
noscripts=1
shift
;;
--noupdate | -u)
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noupdate=1
shift
;;
--help)
usage
exit 0
;;
--version)
version
exit 0
;;
--file | -f)
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if ! test "-$2-" = "--"
then
file="$2"
dofile=1
shift
else
echo No file name provided, ignoring $1 >&2
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fi
shift
;;
update | show | find | describe | packageof | install | remove)
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if test "-$command-" = "--"
then
command=$1
else
packages="$packages $1"
fi
shift
;;
*)
packages="$packages $1"
shift
;;
esac
done
if test $dofile = 1
then
if test -f "$file"
then
filepackages+=$(awk '{printf " %s", $0}' "$file")
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else
echo File $file not found, skipping
fi
packages+=" $filepackages"
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fi
case "$command" in
update)
findworkspace
getsetup
;;
show)
echo The following packages are installed: >&2
awk 'NR>1 && $0=$1' /etc/setup/installed.db
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;;
find)
checkpackages
findworkspace
getsetup
for pkg in $packages
do
echo
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echo Searching for installed packages matching $pkg:
awk 'NR>1 && $1~query && $0=$1' query="$pkg" /etc/setup/installed.db
echo
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echo Searching for installable packages matching $pkg:
awk '$1 ~ query && $0 = $1' RS='\n\n@ ' FS='\n' query="$pkg" setup.ini
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done
;;
describe)
checkpackages
findworkspace
getsetup
for pkg in $packages
do
echo
awk '$1 ~ query {print $0 "\n"}' RS='\n\n@ ' FS='\n' query="$pkg" setup.ini
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done
;;
packageof)
checkpackages
for pkg in $packages
do
key=`which "$pkg" 2>/dev/null | sed "s:^/::"`
if test "-$key-" = "--"
then
key="$pkg"
fi
for manifest in /etc/setup/*.lst.gz
do
found=$(gzip -cd $manifest | grep -c "$key")
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if test $found -gt 0
then
package=`echo $manifest | sed -e "s:/etc/setup/::" -e "s/.lst.gz//"`
echo Found $key in the package $package
fi
done
done
;;
install)
checkpackages
findworkspace
getsetup
for pkg in $packages
do
already=`grep -c "^$pkg " /etc/setup/installed.db`
if test $already -ge 1
then
echo Package $pkg is already installed, skipping
continue
fi
echo
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echo Installing $pkg
# look for package and save desc file
mkdir -p "release/$pkg"
awk '
$1 == package {
desc = $0
px++
}
END {
if (px == 1 && desc) print desc
else print "Package not found"
}
' RS='\n\n@ ' FS='\n' package="$pkg" setup.ini > "release/$pkg/desc"
desc=$(<"release/$pkg/desc")
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if test "-$desc-" = "-Package not found-"
then
echo Package $pkg not found or ambiguous name, exiting
rm -r "release/$pkg"
exit 1
fi
echo Found package $pkg
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# download and unpack the bz2 or xz file
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# pick the latest version, which comes first
install=$(awk '/^install: / {print $2; exit}' "release/$pkg/desc")
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if test "-$install-" = "--"
then
echo 'Could not find "install" in package description: obsolete package?'
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exit 1
fi
file=`basename $install`
cd "release/$pkg"
wget -nc $mirror/$install
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# check the md5
digest=$(awk '/^install: / {print $4; exit}' desc)
digactual=$(md5sum $file | awk NF=1)
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if ! test $digest = $digactual
then
echo MD5 sum did not match, exiting
exit 1
fi
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echo "Unpacking..."
tar xvf $file -C / > "/etc/setup/$pkg.lst"
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gzip -f "/etc/setup/$pkg.lst"
cd ../..
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# update the package database
awk '
ins != 1 && pkg < $1 {
printf "%s %s 0\n", pkg, bz
ins=1
}
1
END {
if (ins != 1) printf "%s %s 0\n", pkg, bz
}
' pkg="$pkg" bz=$file /etc/setup/installed.db > /tmp/awk.$$
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mv /etc/setup/installed.db /etc/setup/installed.db-save
mv /tmp/awk.$$ /etc/setup/installed.db
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# recursively install required packages
requires=$(awk '
$0 ~ rq {
sub(rq, "")
print
}
' rq='^requires: ' "release/$pkg/desc")
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warn=0
if ! test "-$requires-" = "--"
then
echo Package $pkg requires the following packages, installing:
echo $requires
for package in $requires
do
already=`grep -c "^$package " /etc/setup/installed.db`
if test $already -ge 1
then
echo Package $package is already installed, skipping
continue
fi
apt-cyg --noscripts install $package
(( $? )) && warn=1
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done
fi
if ! test $warn = 0
then
echo "Warning: some required packages did not install, continuing"
fi
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# run all postinstall scripts
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pis=`ls /etc/postinstall/*.sh 2>/dev/null | wc -l`
if test $pis -gt 0 && ! test $noscripts -eq 1
then
echo Running postinstall scripts
for script in /etc/postinstall/*.sh
do
$script
mv $script $script.done
done
fi
echo Package $pkg installed
done
;;
remove)
checkpackages
for pkg in $packages
do
already=`grep -c "^$pkg " /etc/setup/installed.db`
if test $already = 0
then
echo Package $pkg is not installed, skipping
continue
fi
dontremove="cygwin coreutils gawk bzip2 tar wget bash"
for req in $dontremove
do
if test "-$pkg-" = "-$req-"
then
echo apt-cyg cannot remove package $pkg, exiting
exit 1
fi
done
if ! test -e "/etc/setup/$pkg.lst.gz"
then
echo Package manifest missing, cannot remove $pkg. Exiting
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exit 1
fi
echo Removing $pkg
# run preremove scripts
if test -e "/etc/preremove/$pkg.sh"
then
"/etc/preremove/$pkg.sh"
rm "/etc/preremove/$pkg.sh"
fi
gzip -cd "/etc/setup/$pkg.lst.gz" |
awk '/[^\/]$/ {print "rm -f \"/" $0 "\""}' | sh
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rm "/etc/setup/$pkg.lst.gz"
rm -f /etc/postinstall/$pkg.sh.done
awk '$1 != pkg' pkg="$pkg" /etc/setup/installed.db > /tmp/awk.$$
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mv /etc/setup/installed.db /etc/setup/installed.db-save
mv /tmp/awk.$$ /etc/setup/installed.db
echo Package $pkg removed
done
;;
*)
usage
;;
esac