dotfiles/scripts/locinst.sh

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#!/bin/bash
# Local package installer
# Config
export LOCINST_DIR="$HOME/.locinst/"
#export LOCINST_DB="$XDG_CONFIG_HOME/locinst/"
export LOCINST_DB="$HOME/.config/locinst/"
# Constants
LOCINST_TMP=/tmp/locinst
# Path set
export PATH="$LOCINST_DIR/bin:$LOCINST_DIR/usr/bin:$PATH"
export LD_LIBRARY_PATH="$LOCINST_DIR/lib:$LOCINST_DIR/usr/lib:$LD_LIBRARY_PATH"
# Dir set
if [ ! -d "$LOCINST_DIR" ]; then
mkdir -p "$LOCINST_DIR"
# TODO Add symbolic links and stuff
fi
if [ ! -d "$LOCINST_TMP" ]; then
mkdir -p "$LOCINST_TMP"
fi
if [ ! -d "$LOCINST_DB" ]; then
mkdir -p "$LOCINST_DB"
fi
# Misc functions
function step { # str
echo "--> $1"
}
function error { # str
echo "ERR $1"
}
# Providers
# Args package_destination, package[, extra_info]
# 0: No error, must have put the uncompressed package in $package_destination
# 1: Generic error
# 4: Package not found on repo
# 5: Package already installed on system
function locinst_arch {
function getDlLink { # package, arch, repo
echo "$(getPageLink $1 $2 $3)download/"
}
function findPackage { # package
function getPageLink { # package, arch, repo
echo "https://www.archlinux.org/packages/$3/$2/$1/"
}
function testLink { # link
wget -q --max-redirect 0 "$1" -O /dev/null
return $?
}
function testPackage { # package, arch, repo
link="$(getPageLink $1 $2 $3)"
testLink "$link"
return $?
}
for repo in community core extra
do
for arch in any $(uname -m)
do
testPackage $1 $arch $repo
if [ $? -eq 0 ]; then
echo "$arch:$repo"
return 0
fi
done
done
return 1
}
dest="$1"
package=$2
step "Finding $package"
data=$(findPackage $package)
if [ $? -ne 0 ]; then
return 4
fi
arch=$(cut -d ":" -f 1 <<< "$data")
repo=$(cut -d ":" -f 2 <<< "$data")
step "Downloading $repo/$package-$arch"
link=$(getDlLink $package $arch $repo)
destcmp="$LOCINST_TMP/$package.tar.xz"
wget $link -O $destcmp
step "Extracting package"
tar xf "$destcmp" -C "$dest"
# TODO Parse .PKGINFO for dependency
# TODO Check if already on system
rm -f $dest/.MTREE $dest/.PKGINFO
rm "$destcmp"
return 0
}
function locinst_pypi {
dest=$1
shift
tar=$LOCINST_TMP/$1.tar.gz
char=`echo $1 | cut -c1-1`
wget "https://pypi.python.org/packages/source/$char/$1/$1-$2.tar.gz" -O $tar --no-check-certificate
preinst=$LOCINST_TMP/$1-$2/
tar xf $tar -C $LOCINST_TMP
mkdir -p $dest/lib/python
export PYTHONPATH="$dest/lib/python:$PYTHONPATH"
(cd $preinst; python3 setup.py install --home=$dest)
rm -rf $tar $preinst
}
# Master function
function locinst { # action package [other_info]*
function remove { # package
package=$1
index=$LOCINST_DB/$package
# TODO Filter common things, also delete folders
(cd $LOCINST_DIR; cat $index | while read file; do rm -f "$file"; done)
rm -f $index
}
action=$1
package=$2
shift; shift
dest=$LOCINST_TMP/$package
if [ ! -d "$dest" ]; then
mkdir -p "$dest"
fi
case $action in
"remove")
step "Removing $package"
remove $package
return $?
;;
"arch")
locinst_arch $dest $package $*
code=$?
;;
"pypi")
locinst_pypi $dest $package $*
code=$?
;;
*)
error "I don't know what to do. And don't beg for help with the commands."
return 1
;;
esac
# From now on something was installed
case $code in
0)
index=$LOCINST_DB/$package
if [ -e $index ]; then
step "Removing old instance of $package"
remove $package
fi
step "Installing $package"
(cd $dest; find . -mindepth 2 >> $index)
cp -r $dest/* $LOCINST_DIR/
rm -rf $dest
return 0
;;
4)
error "Package not found!"
;;
5)
error "Package already installed on system!"
;;
*)
error "Ugh... Something bad happened"
esac
# From now on an error has happened
return $code
}
#