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
[ $HOSTTYPE = x86_64 ] && ARCH=x86_64 || ARCH=x86
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function usage () {
rw=(
'usage: apt-cyg [command] [options] [packages]'
''
'Commands:'
' install <packages> install packages'
' remove <packages> remove packages'
' update update setup.ini'
' list [patterns] list packages matching given pattern. If no'
' pattern is given, list all installed packages.'
' listfiles <packages> list files owned by packages'
' show <packages> Displays the package records for the named'
' packages'
' depends <patterns> performs recursive dependency listings'
' rdepends <patterns> Display packages which require X to be installed,'
' AKA show reverse dependencies'
' search <patterns> search for a filename from installed packages'
' searchall <patterns> search for a filename from all available packages'
''
'Options:'
' -c, --cache <dir> set cache'
' -f, --file <file> read package names from file'
' -m, --mirror <url> set mirror'
' --help'
' --version'
)
printf '%s\n' "${rw[@]}"
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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
cache=/var/cache
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# work wherever setup worked last, if possible
if [ -e /etc/setup/last-cache ]
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then
cache=$(cygpath -f /etc/setup/last-cache)
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fi
if [ -e /etc/setup/last-mirror ]
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then
mirror=$(sed 's./$..' /etc/setup/last-mirror)
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fi
mirrordir=$(sed '
s / %2f g
s : %3a g
' <<< "$mirror"/)
mkdir -p "$cache/$mirrordir/$ARCH"
cd "$cache/$mirrordir/$ARCH"
[ -e setup.ini ] || getsetup
}
getsetup()
{
touch setup.ini
mv setup.ini setup.ini-save
wget -N $mirror/$ARCH/setup.bz2
if [ -e setup.bz2 ]
then
bunzip2 setup.bz2
mv setup setup.ini
echo Updated setup.ini
else
echo Error updating setup.ini, reverting
mv setup.ini-save setup.ini
fi
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}
function checkpackages()
{
if [[ $packages ]]
then
return 0
else
echo Nothing to do.
return 1
fi
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}
apt-update () {
findworkspace
getsetup
}
apt-list () {
if checkpackages
then
findworkspace
for pkg in $packages
do
echo
echo Searching for installed packages matching $pkg:
awk 'NR>1 && $1~query && $0=$1' query="$pkg" /etc/setup/installed.db
echo
echo Searching for installable packages matching $pkg:
awk '$1 ~ query && $0 = $1' RS='\n\n@ ' FS='\n' query="$pkg" setup.ini
done
else
echo The following packages are installed: >&2
awk 'NR>1 && $0=$1' /etc/setup/installed.db
fi
}
apt-listfiles () {
checkpackages
for pkg in $packages
do
if [ -e /etc/setup/"$pkg".lst.gz ]
then
gzip -cd /etc/setup/"$pkg".lst.gz
else
echo package $pkg is not installed
fi
echo
done |
head -c-1
}
apt-show () {
findworkspace
checkpackages
for pkg in $packages
do
awk '
$1 == query {
print
fd++
}
END {
if (! fd)
print "Unable to locate package " query
printf "\n"
}
' RS='\n\n@ ' FS='\n' query="$pkg" setup.ini
done |
head -c-1
}
apt-depends () {
findworkspace
checkpackages
for pkg in $packages
do
awk '
$1 == "@" {
pkg = $2
}
$1 == "requires:" {
for (i=2; i<=NF; i++)
reqs[pkg][$i]
}
END {
prtPkg(query)
}
function prtPkg(pkg) {
if (seen[pkg]++) return
printf "%*s%s\n", indent, "", pkg
indent++
if (pkg in reqs)
for (req in reqs[pkg])
prtPkg(req)
indent--
}
' query="$pkg" setup.ini
done
}
apt-rdepends () {
findworkspace
for pkg in $packages
do
awk '
/^@ / {
pn = $2
}
$0 ~ "^requires: .*"query {
print pn
}
' query="$pkg" setup.ini
done
}
apt-search () {
checkpackages
for pkg in $packages
do
key=$(type -P "$pkg" | sed s./..)
[[ $key ]] || key=$pkg
for manifest in /etc/setup/*.lst.gz
do
found=$(gzip -cd $manifest | grep -c "$key")
if (( found ))
then
package=$(sed '
s,/etc/setup/,,
s,.lst.gz,,
' <<< $manifest)
echo Found $key in the package $package
fi
done
done
}
apt-searchall () {
for pkg in $packages
do
printf -v qs 'text=1&arch=%s&grep=%s' $ARCH "$pkg"
cd /tmp
wget -O matches cygwin.com/cgi-bin2/package-grep.cgi?"$qs"
awk '
NR > 1 &&
! /-debuginfo-/ &&
! /-devel-/ &&
! /-doc-/ &&
! /-src\t$/ &&
! mc[$2]++ &&
$0 = $2
' FS=/ matches
done
}
apt-install () {
findworkspace
checkpackages
for pkg in $packages
do
if grep -q "^$pkg " /etc/setup/installed.db
then
echo Package $pkg is already installed, skipping
continue
fi
echo
echo Installing $pkg
# look for package and save desc file
mkdir -p release/"$pkg"
awk '$1 == pc' RS='\n\n@ ' FS='\n' pc=$pkg setup.ini > release/$pkg/desc
if [ ! -s release/$pkg/desc ]
then
echo Package $pkg not found or ambiguous name, exiting
rm -r release/"$pkg"
exit 1
fi
echo Found package $pkg
# download and unpack the bz2 or xz file
# pick the latest version, which comes first
install=$(awk '/^install: / {print $2; exit}' release/"$pkg"/desc)
if [[ ! $install ]]
then
echo 'Could not find "install" in package description: obsolete package?'
exit 1
fi
file=$(basename $install)
cd release/"$pkg"
wget -nc $mirror/$install
# check the md5
digest=$(awk '/^install: / {print $4; exit}' desc)
digactual=$(md5sum $file | awk NF=1)
if [ $digest != $digactual ]
then
echo MD5 sum did not match, exiting
exit 1
fi
echo Unpacking...
tar xvf $file -C / > /etc/setup/"$pkg".lst
gzip -f /etc/setup/"$pkg".lst
cd ../..
# update the package database
awk '
ins != 1 && pkg < $1 {
print pkg, bz, 0
ins = 1
}
1
END {
if (ins != 1) print pkg, bz, 0
}
' pkg="$pkg" bz=$file /etc/setup/installed.db > /tmp/awk.$$
mv /etc/setup/installed.db /etc/setup/installed.db-save
mv /tmp/awk.$$ /etc/setup/installed.db
# recursively install required packages
requires=$(awk '
$0 ~ rq {
sub(rq, "")
print
}
' rq='^requires: ' release/"$pkg"/desc)
warn=0
if [[ $requires ]]
then
echo Package $pkg requires the following packages, installing:
echo $requires
for package in $requires
do
if grep -q "^$package " /etc/setup/installed.db
then
echo Package $package is already installed, skipping
continue
fi
apt-cyg install --noscripts $package || (( warn++ ))
done
fi
if (( warn ))
then
echo 'Warning: some required packages did not install, continuing'
fi
# run all postinstall scripts
(( noscripts )) && continue
find /etc/postinstall -name '*.sh' | while read script
do
echo Running $script
$script
mv $script $script.done
done
echo Package $pkg installed
done
}
apt-remove () {
checkpackages
for pkg in $packages
do
if ! grep -q "^$pkg " /etc/setup/installed.db
then
echo Package $pkg is not installed, skipping
continue
fi
cygcheck awk bash bunzip2 grep gzip mv sed tar xargs xz | awk '
/bin/ &&
! fd[$NF]++ &&
$0 = $NF
' FS='\\' > /tmp/cygcheck.txt
apt-cyg listfiles $pkg | awk '
$0 = $NF
' FS=/ > /tmp/listfiles.txt
if grep -xf /tmp/cygcheck.txt /tmp/listfiles.txt
then
echo apt-cyg cannot remove package $pkg, exiting
exit 1
fi
if [ ! -e /etc/setup/"$pkg".lst.gz ]
then
echo Package manifest missing, cannot remove $pkg. Exiting
exit 1
fi
echo Removing $pkg
# run preremove scripts
if [ -e /etc/preremove/"$pkg".sh ]
then
/etc/preremove/"$pkg".sh
rm /etc/preremove/"$pkg".sh
fi
gzip -cd /etc/setup/"$pkg".lst.gz | sed '\./$.d;s.^./.' | xargs rm -f
rm /etc/setup/"$pkg".lst.gz
rm -f /etc/postinstall/$pkg.sh.done
awk '$1 != pkg' pkg="$pkg" /etc/setup/installed.db > /tmp/awk.$$
mv /etc/setup/installed.db /etc/setup/installed.db-save
mv /tmp/awk.$$ /etc/setup/installed.db
echo Package $pkg removed
done
}
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# process options
dofile=0
command=''
file=''
filepackages=''
packages=''
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while (( $# ))
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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
;;
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--help)
usage
exit 0
;;
--version)
version
exit 0
;;
--file | -f)
if [[ $2 ]]
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then
file=$2
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dofile=1
shift
else
echo No file name provided, ignoring $1 >&2
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fi
shift
;;
update)
command=$1
shift
;;
install \
| list \
| listfiles \
| depends \
| rdepends \
| search \
| searchall \
| remove \
| show)
if [[ $command ]]
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then
packages+=" $1"
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else
command=$1
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fi
shift
;;
*)
packages+=" $1"
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shift
;;
esac
done
if (( dofile ))
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then
if [ -f "$file" ]
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then
filepackages+=$(awk '{printf " %s", $0}' "$file")
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else
echo File $file not found, skipping
fi
packages+=" $filepackages"
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fi
if type -t apt-$command | grep -q function
then
apt-$command
else
usage
fi