github/plexupdate
1
0
Fork 0
mirror of https://github.com/mrworf/plexupdate.git synced 2025-08-19 21:03:19 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

Only modify permissions on files when AUTOUPDATE is run

Browse source
This commit is contained in:
Alex Malinovich 2016-12-05 12:30:45 -08:00
commit f8f976e66b
1 changed files with 34 additions and 25 deletions
Download patch file Download diff file Expand all files Collapse all files

59
plexupdate.sh
View file

@ -84,6 +84,9 @@ UPSTREAM_GIT_URL='https://raw.githubusercontent.com/demonbane/plexupdate/reworkl
#Branch to fetch updates from
BRANCHNAME="reworklog" #FIXME
#Files "owned" by plexupdate, for autoupdate
PLEXUPDATE_FILES="plexupdate.sh extras/installer.sh extras/cronwrapper"
FILE_POSTDATA=$(mktemp /tmp/plexupdate.postdata.XXXX)
FILE_RAW=$(mktemp /tmp/plexupdate.raw.XXXX)
FILE_FAILCAUSE=$(mktemp /tmp/plexupdate.failcause.XXXX)
@ -203,16 +206,6 @@ cleanup() {
for F in "${FILE_RAW}" "${FILE_FAILCAUSE}" "${FILE_POSTDATA}" "${FILE_KAKA}" "${FILE_SHA}" "${FILE_LOCAL}" "${FILE_REMOTE}" "${FILE_WGETLOG}"; do
rm "$F" 2>/dev/null >/dev/null
done
plexupdate_path="$(dirname "$0")"
# Make sure permissions haven't been modified by running as sudo and not sudo on different occasions
if [ -d "${plexupdate_path}/.git" ]; then
chown -R --reference="${plexupdate_path}" "${plexupdate_path}/" &> /dev/null
fi
if [ -f "${plexupdate_path}/extras/cronwrapper" -a $EUID -eq 0 ]; then
chown root:root "${plexupdate_path}/extras/cronwrapper" &> /dev/null
fi
}
trap cleanup EXIT
@ -315,8 +308,6 @@ if [ ! -z "${RELEASE}" ]; then
fi
if [ "${AUTOUPDATE}" = "yes" ]; then
GIT_UPDATED=no
if ! hash git 2>/dev/null; then
error "You need to have git installed for this to work"
exit 1
@ -337,26 +328,44 @@ if [ "${AUTOUPDATE}" = "yes" ]; then
# Force FETCH_HEAD to point to the correct branch (for older versions of git which don't default to current branch)
if git fetch origin $BRANCHNAME --quiet && ! git diff --quiet FETCH_HEAD; then
info "Auto-updating..."
#Use an associative array to store permissions. If you're running bash < 4, the declare will fail and we'll
#just run in "dumb" mode without trying to restore permissions
declare -A FILE_OWNER FILE_PERMS && \
for filename in $PLEXUPDATE_FILES; do
FILE_OWNER[$filename]=$(stat -c "%u:%g")
FILE_PERMS[$filename]=$(stat -c "%a")
done
if ! git merge --quiet FETCH_HEAD; then
error 'Unable to update git, try running "git pull" manually to see what is wrong'
exit 1
fi
if [ $FILE_OWNER ]; then
for filename in $PLEXUPDATE_FILES; do
chown ${FILE_OWNER[$filename]} $filename &> /dev/null || error "Failed to restore ownership for '$filename' after auto-update"
chmod ${FILE_PERMS[$filename]} $filename &> /dev/null || error "Failed to restore permissions for '$filename' after auto-update"
done
fi
info "Update complete"
#make sure we're back in the right relative location before testing $0
popd >/dev/null
if [ ! -f "$0" ]; then
error "Unable to relaunch, couldn't find $0"
exit 1
else
info "Update complete"
GIT_UPDATED=yes
[ -x "$0" ] || chmod 755 "$0"
"$0" ${ALLARGS[@]}
exit $?
fi
fi
popd >/dev/null
if [ ! -f "$0" ]; then
error "Unable to relaunch, couldn't find $0"
exit 1
elif [ "${GIT_UPDATED}" = "yes" ]; then
[ -x "$0" ] || chmod 755 "$0"
"$0" ${ALLARGS[@]}
exit $?
#else we now return you to your regularly scheduled programming
fi
#we may have already returned, so ignore any errors as well
popd &>/dev/null
fi
# Sanity check