apt-cyg/apt-cyg

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#!/bin/bash
# apt-cyg: install tool for Cygwin similar to debian apt-get
#
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# The MIT License (MIT)
#
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# Copyright (c) 2013 Trans-code Design
#
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# 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:
#
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# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
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# 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
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ARCH=${HOSTTYPE/i6/x}
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function usage () {
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cat <<+
usage: apt-cyg [command] [options] [packages]
Commands:
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install Install packages
remove Remove packages
update Update setup.ini
download Download only - do NOT install or unpack archives
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show Displays the package records for the named packages
depends Performs recursive dependency listings
rdepends Display packages which require X to be installed,
AKA show reverse dependencies
list List packages matching given pattern. If no pattern is given,
list all installed packages.
listfiles List files owned by packages
search Search for a filename from installed packages
searchall Search for a filename from all available packages
Options:
-c, --cache <dir> set cache
-f, --file <file> read package names from file
-m, --mirror <url> set mirror
--help
--version
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+
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}
function version () {
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cat <<+
apt-cyg version 0.59
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The MIT License (MIT)
Copyright (c) 2005-9 Stephen Jungels
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+
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}
find-workspace () {
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# default working directory and mirror
# work wherever setup worked last, if possible
cache=$(awk '
/last-cache/ {
getline
print $1
}
' /etc/setup/setup.rc | cygpath -f-)
mirror=$(awk '
/last-mirror/ {
getline
print $1
}
' /etc/setup/setup.rc)
mirrordir=$(sed '
s / %2f g
s : %3a g
' <<< "$mirror")
mkdir -p "$cache/$mirrordir/$ARCH"
cd "$cache/$mirrordir/$ARCH"
if [ -e setup.ini ]
then
return 0
else
get-setup
return 1
fi
}
get-setup () {
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 check-packages () {
if [[ $packages ]]
then
return 0
else
echo No packages found
return 1
fi
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}
apt-update () {
if find-workspace
then
get-setup
fi
}
apt-list () {
if check-packages
then
find-workspace
for pkg in "${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=$1' /etc/setup/installed.db
fi
}
apt-listfiles () {
check-packages
find-workspace
local pkg sbq
for pkg in "${packages[@]}"
do
(( sbq++ )) && echo
if [ ! -e /etc/setup/"$pkg".lst.gz ]
then
download "$pkg"
fi
gzip -cd /etc/setup/"$pkg".lst.gz
done
}
apt-show () {
find-workspace
check-packages
for pkg in "${packages[@]}"
do
(( notfirst++ )) && echo
awk '
$1 == query {
print
fd++
}
END {
if (! fd)
print "Unable to locate package " query
}
' RS='\n\n@ ' FS='\n' query="$pkg" setup.ini
done
}
apt-depends () {
find-workspace
check-packages
for pkg in "${packages[@]}"
do
(( sq++ )) && echo
awk '
$1 == "@" {
pkg = $2
}
$1 == "requires:" {
for (i=2; i<=NF; i++)
reqs[pkg][i-1]=$i
}
END {
setMinDepth(query)
prtPkg(query)
}
function prtPkg(pkg, req, i) {
depth++
if ( depth == mn[pkg] && !seen[pkg]++ ) {
printf "%*s%s\n", indent, "", pkg
indent += 2
if (pkg in reqs)
for (i=1; i in reqs[pkg]; i++) {
req = reqs[pkg][i]
prtPkg(req)
}
indent -= 2
}
depth--
}
function setMinDepth(pkg, req, i) {
depth++
mn[pkg] = !(pkg in mn) || depth < mn[pkg] ? depth : mn[pkg]
if (depth == mn[pkg]) {
if (pkg in reqs)
for (i=1; i in reqs[pkg]; i++) {
req = reqs[pkg][i]
setMinDepth(req)
}
}
depth--
}
' query="$pkg" setup.ini
done
}
apt-rdepends () {
find-workspace
for pkg in "${packages[@]}"
do
awk '
/^@ / {
pn = $2
}
$0 ~ "^requires: .*"query {
print pn
}
' query="$pkg" setup.ini
done
}
apt-download () {
check-packages
find-workspace
local pkg sbq
for pkg in "${packages[@]}"
do
(( sbq++ )) && echo
download "$pkg"
done
}
download () {
local pkg file digest digactual
pkg=$1
# look for package and save desc file
awk '$1 == pc' RS='\n\n@ ' FS='\n' pc=$pkg setup.ini > desc
if [ ! -s desc ]
then
echo Unable to locate package $pkg
exit 1
fi
# download and unpack the bz2 or xz file
# pick the latest version, which comes first
set -- $(awk '$1 == "install:"' desc)
if (( ! $# ))
then
echo 'Could not find "install" in package description: obsolete package?'
exit 1
fi
dn=$(dirname $2)
bn=$(basename $2)
# check the md5
digest=$4
mkdir -p $cache/$mirrordir/$dn
cd $cache/$mirrordir/$dn
wget -nc $mirror/$dn/$bn
digactual=$(md5sum $bn | awk NF=1)
if [ $digest != $digactual ]
then
echo MD5 sum did not match, exiting
exit 1
fi
tar tf $bn | gzip > /etc/setup/"$pkg".lst.gz
cd ~-
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mv desc $cache/$mirrordir/$dn
echo $dn $bn > /tmp/dwn
}
apt-search () {
check-packages
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echo Searching downloaded packages...
for pkg in "${packages[@]}"
do
key=$(type -P "$pkg" | sed s./..)
[[ $key ]] || key=$pkg
for manifest in /etc/setup/*.lst.gz
do
if gzip -cd $manifest | grep -q "$key"
then
package=$(sed '
s,/etc/setup/,,
s,.lst.gz,,
' <<< $manifest)
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echo $package
fi
done
done
}
apt-searchall () {
cd /tmp
for pkg in "${packages[@]}"
do
printf -v qs 'text=1&arch=%s&grep=%s' $ARCH "$pkg"
wget -O matches cygwin.com/cgi-bin2/package-grep.cgi?"$qs"
awk '
NR == 1 {next}
/-doc-/ {next}
/-debuginfo-/ {next}
/-devel-/ && pkg~/\.exe$/ {next}
/-src\t$/ {next}
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mc[$1]++ {next}
$0 = $1
' FS=-[[:digit:]] pkg="$pkg" matches
done
}
apt-install () {
check-packages
find-workspace
local pkg dn bn requires warn package script
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
download $pkg
read dn bn </tmp/dwn
echo Unpacking...
cd $cache/$mirrordir/$dn
tar -x -C / -f $bn
# 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=$bn /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 '$1=="requires", $0=$2' FS=': ' desc)
cd ~-
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 $pkg installed
done
}
apt-remove () {
check-packages
for pkg in "${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
while (( $# ))
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do
case "$1" in
--mirror | -m)
awk -i inplace '
1
/last-mirror/ {
getline
print "\t" rpc
}
' rpc="$2" /etc/setup/setup.rc
shift 2
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;;
--cache | -c)
rpc=$(cygpath -aw "$2" | sed 's \\ \\\\ g')
awk -i inplace '
1
/last-cache/ {
getline
print "\t" rpc
}
' rpc="$rpc" /etc/setup/setup.rc
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=$2
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# support /dev/clipboard
if [ -c "$file" -o -f "$file" ]
then
fp=$(sed '' "$file")
mapfile -t packages <<< "$fp"
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else
echo File $file not found, skipping
fi
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shift
else
echo No file name provided, ignoring $1 >&2
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fi
shift
;;
update)
command=$1
shift
;;
install \
| remove \
| download \
| show \
| depends \
| rdepends \
| list \
| listfiles \
| search \
| searchall)
if [[ $command ]]
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then
packages+=("$1")
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else
command=$1
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fi
shift
;;
*)
packages+=("$1")
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shift
;;
esac
done
if type -t apt-$command | grep -q function
then
apt-$command
else
usage
fi