histedit: delete histedit statefile on any exception during abort
When an user aborts a histedit, many things could go wrong. At a minimum, after
a histedit abort failure, their repository should be out of that state. We've
found situations where the user could not exit the histedit state without
manually deleting the histedit state file. This patch ensures that if any
exception happens during an abort, the histedit statefile will be deleted so
that users are out of the histedit state and can at least manually get the repo
back to a workable condition.
#!/bin/sh -eu
# This function exists to set up the DOCKER variable and verify that
# it's the binary we expect. It also verifies that the docker service
# is running on the system and we can talk to it.
function checkdocker() {
if which docker.io >> /dev/null 2>&1 ; then
DOCKER=docker.io
elif which docker >> /dev/null 2>&1 ; then
DOCKER=docker
else
echo "Error: docker must be installed"
exit 1
fi
$DOCKER -h 2> /dev/null | grep -q Jansens && { echo "Error: $DOCKER is the Docking System Tray - install docker.io instead"; exit 1; }
$DOCKER version | grep -q "^Client version:" || { echo "Error: unexpected output from \"$DOCKER version\""; exit 1; }
$DOCKER version | grep -q "^Server version:" || { echo "Error: could not get docker server version - check it is running and your permissions"; exit 1; }
}
# Construct a container and leave its name in $CONTAINER for future use.
function initcontainer() {
[ "$1" ] || { echo "Error: platform name must be specified"; exit 1; }
DFILE="$ROOTDIR/contrib/docker/$1"
[ -f "$DFILE" ] || { echo "Error: docker file $DFILE not found"; exit 1; }
CONTAINER="hg-dockerrpm-$1"
DBUILDUSER=build
(
cat $DFILE
if [ $(uname) = "Darwin" ] ; then
# The builder is using boot2docker on OS X, so we're going to
# *guess* the uid of the user inside the VM that is actually
# running docker. This is *very likely* to fail at some point.
echo RUN useradd $DBUILDUSER -u 1000
else
echo RUN groupadd $DBUILDUSER -g `id -g`
echo RUN useradd $DBUILDUSER -u `id -u` -g $DBUILDUSER
fi
) | $DOCKER build --tag $CONTAINER -
}