#!/bin/bash
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#A basic bash script to automate the building of arch packages
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# Usage: main.sh init|add|build_all [-f force]
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source $(dirname "$(realpath $0)")/vars.sh
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#Helper for finding newest and oldest files
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#Sourced from stack overflow
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# Usage: newold_matching_file [n/o] [filename]
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function newold_matching_file
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{
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# Use ${1-} instead of $1 in case 'nounset' is set
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local -r glob_pattern=${2-}
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# To avoid printing garbage if no files match the pattern, set
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# 'nullglob' if necessary
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local -i need_to_unset_nullglob=0
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if [[ ":$BASHOPTS:" != *:nullglob:* ]] ; then
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shopt -s nullglob
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need_to_unset_nullglob=1
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fi
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file=
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for f in $glob_pattern ; do
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if [ $1 == "n" ]; then
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[[ -z $f || $f -nt $_file ]] && file=$f
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elif [ $1 == "o" ]; then
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[[ -z $f || $f -ot $_file ]] && file=$f
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fi
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done
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# To avoid unexpected behaviour elsewhere, unset nullglob if it was
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# set by this function
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(( need_to_unset_nullglob )) && shopt -u nullglob
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# Use printf instead of echo in case the file name begins with '-'
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[[ -n $file ]] && printf '%s\n' "$file"
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return 0
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}
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#Build latest version of a package
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# Usage: build_pkg [package name] [new?] [-f force]
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function build_pkg {
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#check if PKGBUILD has updated, don't rebuild if hasn't changed
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if [[ ! -z $(git pull | grep "Already up to date.") && -z $(echo $1 | grep git) && -z $2 ]]; then
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return 2
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fi
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#remove old versions before build
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rm *$1*.pkg.tar.xz*
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#make and force rebuild if is git package
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makepkg -s --noconfirm $([ $CLEAN == "Y" ] && echo "-c") $([ $SIGN == "Y" ] && echo "--sign --key $KEY") $([ "$2" == "-f" ] && echo -f)
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if [ $? != 0 ]; then
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#Register error
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echo $1 >> $REPODIR/.errors
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return 1
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fi
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#Move package to repodir and add to repo db
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rm $REPODIR/*$1*.pkg.tar.xz*
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cp *$1*.pkg.tar.xz $REPODIR/
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[ "$SIGN" == "Y" ] && cp *$1*.pkg.tar.xz.sig $REPODIR
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# Add package to waiting list to be added to repo db
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while [ 1 ]; do
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if [ $(cat $REPODIR/.waitlist.lck) == 1 ]; then
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sleep 1
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else
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echo 1 > $REPODIR/.waitlist.lck
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echo $1 >> $REPODIR/.waitlist
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echo 0 > $REPODIR/.waitlist.lck
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break
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fi
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done
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while [ 1 ]; do
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# Wait until package is at the top of the queue and add to db
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if [ "$(head -n1 $REPODIR/.waitlist)" == "$1" ]; then
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repo-add $([ "$SIGN" == "Y" ] && echo "--sign --key $KEY") $REPODIR/$REPONAME.db.tar.xz $REPODIR/*$1*.pkg.tar.xz
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while [ 1 ]; do
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if [ $(cat $REPODIR/.waitlist.lck) == 1 ]; then
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sleep 1
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else
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# Remove self from top of queue
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echo 1 > $REPODIR/.waitlist.lck
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tail -n +2 $REPODIR/.waitlist > $REPODIR/.waitlist.tmp
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mv $REPODIR/.waitlist.tmp $REPODIR/.waitlist
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echo 0 > $REPODIR/.waitlist.lck
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break
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fi
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done
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break
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else
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sleep 10
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fi
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done
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#Remove old versions of packages
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#TODO: Want to be able to keep multiple versions of old packages, future work
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#Currently old package versions stay in the repodir indefinately
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# while [ $NUM_OLD \< $(find . -name '*.pkg.tar.xz' | wc -l) ]
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# do
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# old=$(newold_matching_file o '*.pkg.tar.xz')
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# rm $REPODIR/$old $old
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# done
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return 0
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}
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#Update packages in BUILDDIR
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# Usage: build_all [-f force]
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function build_all {
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#system update
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if [ $UPDATE == "Y" ]; then
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sudo pacman -Syu --noconfirm
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fi
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#update every package currently stored
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for d in $(find $BUILDDIR -maxdepth 1 -mindepth 1 -type d)
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do
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cd $d
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build_pkg $(echo $d | rev | cut -d'/' -f1 | rev) $1 > /dev/null &
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done
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wait
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return 0
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}
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#Add a new package to be built
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#There is no name checking so be sure to put in the name correctly
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# Usage: add [package name]
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function add {
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for i in $@; do
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cd $BUILDDIR
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git clone https://aur.archlinux.org/$i.git
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cd $i
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build_pkg $i new -f
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done
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return 0
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}
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#Remove a package from the build list and repository
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# Usage remove [package name]
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function remove {
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for i in $@; do
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rm -rf $BUILDDIR/$i*
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repo-remove $REPODIR/$REPONAME.db.tar.xz $i
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rm $REPODIR/$i*
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done
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}
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#Check config and create build folders
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#Set variables before usage
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# Usage: init
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function init {
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if [ $uid != 1 ]; then
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echo "This must be run as root"
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fi
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#check for configuration here
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[ -z $REPODIR ] && echo "Enter REPODIR" && return 1
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[ -z $BUILDDIR ] && echo "Enter BUILDDIR" && return 2
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[ -z $REPONAME ] && echo "Enter REPONAME" && return 3
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#make build directories
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[ ! -d $REPODIR ] && mkdir -p $REPODIR
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[ ! -d $BUILDDIR ] && mkdir -p $BUILDDIR
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#packages required to build others
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pacman -S --noconfirm base-devel git
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#add repo to pacman.conf so can install own packages
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if [ -z $(grep "$REPONAME" /etc/pacman.conf) ]; then
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printf "[$REPONAME]\nSigLevel = Optional TrustAll\nServer = file://$REPODIR\n" >> /etc/pacman.conf
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fi
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#create GPG key for package signing
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if [[ "$SIGN" == "Y" && "$KEY" == "" ]]; then
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(
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echo "Key-Type: RSA"
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echo "Key-Length: 2048"
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echo "Subkey-Type: RSA"
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echo "Subkey-Length: 2048"
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echo "Passphrase: \"\""
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echo "Expire-Date: 0"
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echo "Name-Real: John Doe"
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echo "Name-Comment: Arch buildbot"
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echo "Name-Email: $(whoami)@localhost"
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echo "%commit"
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) | gpg --batch --generate-key
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gpg --export --output $REPONAME.key --armor "John Doe"
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gpg --export-secret-keys --output $REPONAME.secret.key --armor "John Doe"
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echo "Please change the key information in this file"
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fi
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return 0
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}
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function send_email {
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(
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echo "From: build@localhost"
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echo "To: $EMAIL"
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echo "Subject: Build errors"
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echo "There were build errors for the build of $REPONAME at $(date), please address them soon."
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echo "The errors were: $1"
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) | sendmail -t
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}
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case $1 in
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"init")
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init;;
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"add")
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add $2;;
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"build-all")
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build_all $([ "$2" == "-f" ] && echo "-f")
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if [ -f $REPODIR/.errors ]; then
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ERRORS=$(cat $REPODIR/.errors | tr '\n' ' ')
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rm $REPODIR/.errors
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echo "Errors in packages: $ERRORS"
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if [ "$EMAIL" != "" ]; then
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send_email $ERRORS
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fi
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else
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echo "All packages built successfully"
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fi
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;;
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"remove")
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remove $2;;
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*)
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printf "Invalid usage\nUsage: $0 init|add|build-all\n";;
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esac
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