apk-tools Code

#!/bin/sh

META_SUFFIX=".tar.gz"

# Init ths installed package database
db_init() {
	local tdbdir=$(dirname "$APK_DEFAULT_TDB")
	mkdir -p "$APKDB"
	mkdir -p "$tdbdir"
}

# All installed packages
db_all_installed() {
	local opwd i
	opwd="$PWD"
	cd "$APKDB"
	ls -d *-[0-9]* 2>/dev/null | sed 's/'$META_SUFFIX'$//'
	cd "$opwd"
}

##########################################################
# is package installed?
# returns pkgv or nothing if pkg is not installed
db_get_installed_pkgv() {
	local p="$1"
	local regexp
	if has_version "$p" ; then
		regexp="^$p\$"
	else
		regexp="^$p-[0-9].*"
	fi
	db_all_installed | grep "$regexp"
}

############################################################
db_decompress_meta() {
	local metafile="$APKDB/$1$META_SUFFIX"
	[ "$APK_NOCOMPRESS" ] && return
	[ ! -f "$metafile" ] && die "$1 does not seem to be installed."
	tar -C "$APKDB" -zxf "$metafile"
}


#############################################################
db_compress_meta() {
	local opwd metaball pkgv
	[ "$APK_NOCOMPRESS" ] && return
	opwd="$PWD"
	pkgv="$1"
	metaball="$pkgv$META_SUFFIX"
	cd "$APKDB"
	[ ! -d "$pkgv" ] &&\
		die "db_compress_meta: $APKDB/$pkgv is not a directory or is missing"
	rm -f "$metaball"
	tar -czf "$metaball" $pkgv
	rm -rf "$pkgv"
	cd "$opwd"
}

db_register_required_by() {
	local pkgv="`db_get_installed_pkgv $1`"
	local reqby_pkgv="$2"
	[ -z "$pkgv" ] && return 1
	db_decompress_meta $pkgv
	echo "$reqby_pkgv" >> "$APKDB/$pkgv/REQUIRED_BY"
	db_compress_meta $pkgv
}


db_unregister_required_by() {
	local pkgv="`db_get_installed_pkgv $1`"
	local reqby_pkgv=$2
	local reqbys
	local rbfile="$APKDB/$pkgv/REQUIRED_BY"
	[ -z "$pkgv" ] && return 1
	db_decompress_meta $pkgv
	if [ -f "$rbfile" ] ; then
		sed -i "/^$reqby_pkgv$/d" "$rbfile"
	fi
	db_compress_meta $pkgv
}

# unregister package in dependencies REQUIRED_BY
db_unregister_pkgv() {
	local i pkgv="$1"
	local deps="`db_get_pkgv_deps $pkgv`"
	if [ "$deps" ] ; then
		for i in $deps ; do
			[ "$VERBOSE" ] && echo "unregistering $i required by $pkgv"
			[ "$DRYRUN" ] || db_unregister_required_by $i $pkgv
		done
	fi
}

# create checksums for config files. reads stdin
db_reg_confs() {
	local opwd="$PWD"
	if [ "$1" ] ; then
		cd "$1"
	else
		cd "$ROOT"
	fi
	[ "$SFIC" ] && $SFIC --add "$APK_DEFAULT_TDB" --file - 
	cd "$opwd"
}

# unregister confs from sfic database. read stdin
db_unreg_confs() {
	if [ "$SFIC" ] && [ $# -gt 0 ] ; then
		[ "$VERBOSE" ] && echo "unregistering $# config files"
		[ -z "$DRYRUN" ] && $SFIC --delete "$APK_DEFAULT_TDB" --file -
	fi
}

# unregister confs for an installed package
db_unreg_confs_pkgv() {
	db_decompress_meta "$1"
	# sfic does not handle trailing / well.
	lbu_filter < "$APKDB/$1/CONTENTS" | sed 's:/$::' | db_unreg_confs
	db_compress_meta "$1"
}

db_get_pkgv_meta() {
	if [ "$APK_NOCOMPRESS" ] ; then
		cat "$APKDB/$1/$2" 2>/dev/null
	else
		tar -O -zxf "$APKDB/$1$META_SUFFIX" $1/$2 2>/dev/null
	fi
}

db_get_pkgv_deps() {
	db_get_pkgv_meta "$1" DEPEND
}

db_get_pkgv_reqby() {
	db_get_pkgv_meta "$1" REQUIRED_BY
}

db_get_pkgv_size() {
	local metafile="$APKDB/$1$META_SUFFIX"
	( 
		cd "$ROOT"
		db_get_pkgv_meta "$1" CONTENTS | while read f ; do
			ls -s -d "$f" 2>/dev/null
		done
		ls -s "$metafile" 2>/dev/null
	) | awk '{ total += $1 } END {	print total }'
}

# return a list of installed pkgv's from given glob
db_glob() {
	local sufx re
	[ -z "$APK_NOCOMPRESS" ] && sufx=".tar.gz"
	if echo "$1" | grep "^:" >/dev/null ; then
		re=`echo "$1" | sed 's/^://'`
		db_all_installed | grep "$re"
	elif has_wildcard "$1" || has_version "$1" ; then
		ls -d "$APKDB/"$1$sufx 2>/dev/null | sed 's|.*/|| ; s|'$META_SUFFIX'||'
	else
		ls -d "$APKDB/$1"-[0-9]* 2>/dev/null | sed 's|.*/|| ; s|'$META_SUFFIX'||'
	fi
}

# remove all meta data for given package
db_zap_pkgv_meta() {
	local p="$APKDB/$1"
	local pgz="$p$META_SUFFIX"
	[ -d "$p" ] && rm -rf "$p"
	[ -f "$pgz" ] && rm -f "$pgz"
}

#find the package to which specified file belongs.
db_belongs() {
	local pv f
	# remove leading /
	f=`beautify_path "${1#/}"`
	db_all_installed | while read pv ; do
		db_get_pkgv_meta $pv CONTENTS | grep "$f\$" >/dev/null && echo $pv
	done
}