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|
#!/usr/bin/env zsh
# Recommended: hg >= 1.0
PDIR="$HOME/packages"
PKG_ROOT="ssh://derf.homelinux.org/~/var/packages_root"
CL_OPTIONS=(-q)
info=$'\e[0;36m'
error=$'\e[0;31m'
reset=$'\e[0m'
##
## Internal functions for displaying stuff
##
info () {
echo -ne "${info}$*${reset}"
}
warn () {
echo -ne "${error}$*${reset}"
}
die () {
echo -ne "${error}$*${reset}"
exit 100
}
check_installed () {
[ -n "$1" -a -d $PDIR/$1 ] || die "Not installed: $1\n"
}
check_valid () {
[ -d $PDIR/$1/.hg ] || die "Not a valid package name: '$1'\n"
}
clear_line () {
echo -ne "\r \r"
}
# Read local configuration
if ([ -f $HOME/.pkg.conf ]) {
. $HOME/.pkg.conf
}
export PDIR
export PKG_ROOT
##
## Make sure everything's sane
## Warn otherwise
##
# we need sed -r (and sed -i, but not checking for that here)
QUUX=$(echo foox | sed -r 's/^fo{2}(.)$/quu\1/' 2> /dev/null)
if ([ "$QUUX" != 'quux' ]) {
warn "sed is not working properly. This may produce unexpected behaviour.\n"
}
if ([ ! -d $PDIR ]) {
die "$PDIR not found!!"
}
##
## Some additional variables related to PKG_ROOT
##
# Protocol
if (echo "$PKG_ROOT" | grep "^ssh" &> /dev/null) {
PKG_PROTO='ssh'
} elif (echo "$PKG_ROOT" | grep "^/" &> /dev/null) {
PKG_PROTO='file'
} else {
false
}
# Host
if ([ "$PKG_PROTO" = "ssh" ]) {
PKG_HOST=$(echo "$PKG_ROOT" | sed 's!^ssh://!!' | sed -r 's!^([^/]*)/.*$!\1!')
}
# Remote path
if ([ "$PKG_PROTO" = "ssh" ]) {
PKG_PATH=$(echo "$PKG_ROOT" | sed 's!^ssh://'"$PKG_HOST"'/!!')
} elif ([ "$PKG_PROTO" = "file" ]) {
PKG_PATH="$PKG_ROOT"
}
##
## Ask the user for confirmation
##
# Default reply: Yes
confirm_yes () {
echo -n "$* [Y/n] "
read -k 1
[ $REPLY != $'\n' ] && echo
if ([ "$REPLY" = 'y' -o "$REPLY" = 'Y' -o "$REPLY" = $'\n' ]) {
true
} else {
false
}
}
# Default reply: No
confirm_no () {
echo -n "$* [y/N] "
read -q
}
##
## Major internal functions
##
## VCS Wrappers
vcs_add () {
cd "$PDIR"
case "$1" in
git) git clone "$2" ;;
hg|'') hg clone "$2" ;;
*) die "Cannot handle repository format '$1'\n" ;;
esac
}
vcs_incoming () {
# [ -d .vcs ] && vcs incoming will not work here, since the [] will return
# something. We need the return value of vcs.
[ -d .hg ] && {hg --quiet incoming; return}
[ -d .git ] && {true ; return}
}
vcs_update () {
[ -d .hg ] && hg --quiet pull --update
[ -d .git ] && git pull
}
# Return an understandable priority from the numeric one
real_priority () {
case "$1" in
6) echo "essential" ;;
5) echo "important" ;;
4) echo "required" ;;
3) echo "standard" ;;
2) echo "optional" ;;
1) echo "extra" ;;
*) echo ;;
esac
}
# Execute a hook
exec_hook () {
package="$1"
hook="$2"
if ([ -r $PDIR/$package/hooks/$hook ]) {
info "Executing $hook hook\n"
cd $PDIR/$package
. hooks/$hook
}
}
# Check dependencies and offer to install them
check_deps () {
[ -r $PDIR/$1/dependencies ] || return 0
DEPS=($(cat $PDIR/$1/dependencies))
INSTALL=()
for dep in $DEPS; {
if ([ ! -d $PDIR/$dep ]) {
INSTALL+="$dep"
}
}
if ([ -n "$INSTALL" ]) {
info "$1 has unmet dependencies: "
echo "$INSTALL"
if (confirm_yes "Install dependencies?") {
for pkg in $INSTALL; {
pkg_add "$pkg"
}
} else {
die "Installation aborted"
}
}
}
check_conflicts () {
[ -r $PDIR/$1/conflicts ] || return 0
CONFLICTS=($(cat $PDIR/$1/conflicts))
REMOVE=()
for conflict in $CONFLICTS; {
if ([ -d $PDIR/$conflict ]) {
REMOVE+="$conflict"
}
}
if ([ -n "$REMOVE" ]) {
info "$1 conflicts with the following packages: "
echo "$REMOVE"
if (confirm_no "Remove conflicting packages and proceed with installation?") {
for pkg in $REMOVE; {
pkg_remove "$pkg"
}
} else {
die "Installation aborted"
}
}
}
# Write a packages' files to .collected
# Currently, this is only documentation
populate_collected () {
cd $PDIR/$1 || return
info "Enabling documentation "
if ([ -d man ]) {
for i in man/*/*; {
section=${i:h:t}
manpage=${i:t}
if (podchecker man/$section/$manpage &> /dev/null) {
pod2man -s $section -c "$1 package" -r "/home/derf" man/$section/$manpage > $PDIR/.collected/man/man$section/$manpage.$section
echo -n "+"
} else {
echo -n "."
}
}
}
if ([ -d bin ]) {
for i in bin/*; {
if (podchecker $i &> /dev/null) {
pod2man $i > $PDIR/.collected/man/man1/${i:t}.1
echo -n "+"
} else {
echo -n "."
}
}
}
clear_line
if ([ -d bin ]) {
for i in bin/*(*); {
if ([ "$(readlink $HOME/$i)" != "../$1/$i" ]) {
rm -f "$HOME/$i"
ln -s ../${PDIR//$HOME\/}/$1/$i $HOME/$i
}
}
}
}
# Remove a packages' files from .collected
# Assuming there are no packages with colliding files
# TODO: Make sure there are none
genocide_collected () {
cd $PDIR/$1 || return
info "Removing documentation"
if ([ -d man ]) {
for i in man/*/*; {
section=${i:h:t}
manual=${i:t}
if ([ -e $PDIR/.collected/man/man$section/$manual ]) {
rm $PDIR/.collected/man/man$section/$manual
}
}
}
if ([ -d bin ]) {
for i in bin/*; {
rm -f $PDIR/.collected/man/man1/${i:t}.1
}
}
clear_line
if ([ -d bin ]) {
for i in bin/*(*); {
if ([ "$(readlink $HOME/$i)" = "../${PDIR//$HOME\/}/$1/$i" ]) {
rm -f $HOME/$i
}
}
}
}
##
## Finally - the functions actually doing something
##
pkg_add () {
if ([ -d $PDIR/$1 ]) {
info "Package '$1' is already installed!\n"
return 100
}
cd $PDIR || return 255
info "Retrieving package $1...\n"
vcs_add "$2" "$PKG_ROOT/$1" || return 255
if ([ -r $PDIR/$1/Makefile ]) {
info "Building binaries\n"
cd $PDIR/$1
make
}
exec_hook "$1" "post-add"
check_deps "$1"
check_conflicts "$1"
cd $PDIR/$1
checklinks $CL_OPTIONS
populate_collected "$1"
return 0
}
pkg_remove () {
check_installed "$1"
check_valid "$1"
cd $PDIR/$1
if ([ -r priority ]) {
if ([ $(cat priority) -gt 3 ]) {
confirm_no "Package '$1' is $(real_priority $(cat priority)). Really remove?" || return
}
}
exec_hook "$1" "pre-remove"
genocide_collected "$1"
rm -r $PDIR/$1
info "Package removed.\n"
}
pkg_update () {
check_installed "$1"
cd $PDIR/$1
info "Looking for updates: $1"
NEW=$(vcs_incoming)
if ([ $? = 0 ]) {
clear_line
info "Updating: $1 to $(echo $NEW | tail -n 1)"
vcs_update
clear_line
info "Updated $1 to $(echo $NEW | tail -n 1) \n"
check_deps "$1"
if ([ -r Makefile ]) {
info "Building binaries\n"
make
}
exec_hook "$1" "post-update"
checklinks $CL_OPTIONS
populate_collected "$1"
} else {
clear_line
}
cd $PDIR
}
# If no package was specified, update everything
pkg_update_wrapper () {
if ([ -n "$1" ]) {
pkg_update "$1"
} else {
cd $PDIR
for i in *(/); {
pkg_update "$i"
}
}
}
# Change the 'default' url in every package's .hgrc
pkg_changesrc () {
cd $PDIR
for i in *(/); {
if ([ -f $i/.hg/hgrc ]) {
sed -i "s!default = [^:]*://.*\$!default = $1/$i!" $i/.hg/hgrc
}
}
}
pkg_list_installed () {
=ls -1 $PDIR
}
pkg_list_available () {
if ([ "$PKG_PROTO" = 'ssh' ]) {
ssh -q "$PKG_HOST" ls -1 "$PKG_PATH"
} elif ([ "$PKG_PROTO" = 'file' ]) {
ls -1 "$PKG_PATH"
}
}
# Local modifications should not be overseen...
pkg_status () {
check_installed "$1"
cd $PDIR/$1
check_deps "$1"
check_conflicts "$1"
checklinks $CL_OPTIONS
STATUS=$($VCS_CMD $VCS_STATUS)
clear_line
if ([ -n "$STATUS" ]) {
info "Locally modified in $1:\n"
echo "$STATUS"
}
}
# Same as with update - if no package is specified, check all
pkg_status_wrapper () {
if ([ -n "$1" ]) {
pkg_status "$1"
} else {
cd $PDIR
for i in *(/); {
pkg_status "$i"
}
}
}
# Various information related to a package
pkg_info () {
check_installed "$1"
cd $PDIR/$1
[ -z "$1" ] && die "Not enough arguments\n"
# Fetch the infos
NAME="$1"
if ([ -r priority ]) {
PRIORITY=$(cat priority)
PRIORITY_NAME=$(real_priority "$PRIORITY")
}
LOG=$(hg log)
VERSION=$(echo $LOG | grep -m1 'changeset:' | grep -Eo '[0-9]{1,}:[0-9a-f]*')
DATE=$(echo $LOG | grep -m1 'date:' | grep -Eo '[A-Z][a-z]{2}.*')
if ([ -r dependencies ]) {
DEPENDENCIES=$(cat dependencies | tr "\n" " " | sed 's/ /, /g' | sed 's/, $//')
}
if ([ -r tags ]) {
TAGS=$(cat tags | tr "\n" " " | sed 's/ /, /g' | sed 's/, $//')
}
if ([ -d hooks ]) {
HOOKS=$(ls hooks)
}
if ([ -r Makefile ]) {
MAKEFILE=1
}
SIZE=$(du -sh .hg | grep -o '.*[KMG]')
if ([ -r description ]) {
DESCRIPTION=$(cat description)
}
show_info () {
[ -z "$2" ] && return
info "$1: "
echo "$2"
}
show_info "Package" "$NAME"
show_info "Priority" "$PRIORITY ($PRIORITY_NAME)"
show_info "Version" "$VERSION"
show_info "Date" "$DATE"
show_info "Depends" "$DEPENDENCIES"
show_info "Tags" "$TAGS"
show_info "Hooks" "$HOOKS"
show_info "Repostiry Size" "$SIZE"
show_info "Description" "$DESCRIPTION"
}
pkg_log () {
check_installed "$1"
hg -R $PDIR/$1 glog | less
}
pkg_changelog () {
[ -r $PDIR/$1/changelog ] && view $PDIR/$1/changelog
}
# Almost obsoleted by the bin/* -> man/ stuff
pkg_doc () {
if ([ -r $PDIR/.collected/man/$1 ]) {
man $PDIR/.collected/man/$1
} elif ([ -r $PDIR/.collected/doc/$1 ]) {
less $PDIR/.collected/doc/$1
} else {
echo "No documentation found"
}
}
##
## Now what shall we do...
##
case "$1" in
add) pkg_add "$2" "$3" ;;
changelog) pkg_changelog "$2" ;;
changeroot) pkg_changesrc "$2" ;;
delete) pkg_remove "$2" ;;
doc) pkg_doc "$2" ;;
info) pkg_info "$2" ;;
install) pkg_add "$2" "$3" ;;
list) pkg_list_installed ;;
list-all) pkg_list_available ;;
log) pkg_log "$2" ;;
remove) pkg_remove "$2" ;;
status) pkg_status_wrapper "$2" ;;
update) pkg_update_wrapper "$2" ;;
*) die "wait, what?\n" ;;
esac
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