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domruf

lock: fix for Mercurial 3.6+ - wrap hgweb to catch Locked exceptions from hooks

With Mercurial 3.6, the handling of WSGI responses changed. The hook exceptions
are no longer raised directly when app(environ, start_response) is called so
the 'except HTTPLockedRC as e' block in _handle_request (a few lines above )
does not work anymore because the exception happens later.

Therefore I created a wrapper class that can catch the exceptions.

This makes locking work again and fixes lock related tests like
TestVCSOperations.test_clone_after_repo_was_locked_hg which expect certain
output of the hg client in case of an HTTPLockedRC exception.

Depending on how https://bz.mercurial-scm.org/show_bug.cgi?id=5232 gets
handled, this fix might become obsolete in the future.

(Modified by Mads Kiilerich)

#!/sbin/runscript
########################################
#### THIS IS AN GENTOO INIT.D SCRIPT####
########################################

APP_NAME="kallithea"
APP_HOMEDIR="username/python_workspace"
APP_PATH="/home/$APP_HOMEDIR/$APP_NAME"

CONF_NAME="production.ini"

PID_PATH="$APP_PATH/$APP_NAME.pid"
LOG_PATH="$APP_PATH/$APP_NAME.log"

PYTHON_PATH="/home/$APP_HOMEDIR/v-env"

RUN_AS="username"

DAEMON="$PYTHON_PATH/bin/paster"

DAEMON_OPTS="serve --daemon \
--user=$RUN_AS \
--group=$RUN_AS \
--pid-file=$PID_PATH \
--log-file=$LOG_PATH  $APP_PATH/$CONF_NAME"

#extra options
opts="${opts} restartdelay"

depend() {
    need nginx
}

start() {
    ebegin "Starting $APP_NAME"
    start-stop-daemon -d $APP_PATH -e PYTHON_EGG_CACHE="/tmp" \
        --start --quiet \
        --pidfile $PID_PATH \
        --user $RUN_AS \
        --exec $DAEMON -- $DAEMON_OPTS
    eend $?
}

stop() {
    ebegin "Stopping $APP_NAME"
    start-stop-daemon -d $APP_PATH \
        --stop --quiet \
        --pidfile $PID_PATH || echo "$APP_NAME - Not running!"
    if [ -f $PID_PATH ]; then
        rm $PID_PATH
    fi
    eend $?
}

restartdelay() {
    #stop()
    echo "sleep3"
    sleep 3
    
    #start()
}