49ad3cfa67
We short circuit the git submodule update when passed an empty module list. This accidentally causes the 'status' command to write to the status file. The test needs to be delayed into the individual commands to avoid this premature writing of the status file. Tested-by: Philippe Mathieu-Daudé <f4bug@amsat.org> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
83 lines
1.9 KiB
Bash
Executable file
83 lines
1.9 KiB
Bash
Executable file
#!/bin/sh
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#
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# This code is licensed under the GPL version 2 or later. See
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# the COPYING file in the top-level directory.
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substat=".git-submodule-status"
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command=$1
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shift
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maybe_modules="$@"
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test -z "$GIT" && GIT=git
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error() {
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echo "$0: $*"
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echo
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echo "Unable to automatically checkout GIT submodules '$modules'."
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echo "If you require use of an alternative GIT binary (for example to"
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echo "enable use of a transparent proxy), then please specify it by"
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echo "running configure by with the '--with-git' argument. e.g."
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echo
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echo " $ ./configure --with-git='tsocks git'"
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echo
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echo "Alternatively you may disable automatic GIT submodule checkout"
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echo "with:"
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echo
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echo " $ ./configure --disable-git-update'"
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echo
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echo "and then manually update submodules prior to running make, with:"
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echo
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echo " $ scripts/git-sbumodule.sh update $modules"
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echo
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exit 1
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}
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modules=""
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for m in $maybe_modules
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do
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$GIT submodule status $m 1> /dev/null 2>&1
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if test $? = 0
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then
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modules="$modules $m"
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else
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echo "warn: ignoring non-existent submodule $m"
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fi
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done
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if test -n "$maybe_modules" && ! test -e ".git"
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then
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echo "$0: unexpectedly called with submodules but no git checkout exists"
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exit 1
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fi
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case "$command" in
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status)
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if test -z "$maybe_modules"
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then
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test -s ${substat} && exit 1 || exit 0
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fi
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test -f "$substat" || exit 1
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CURSTATUS=`$GIT submodule status $modules`
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OLDSTATUS=`cat $substat`
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test "$CURSTATUS" = "$OLDSTATUS"
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exit $?
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;;
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update)
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if test -z "$maybe_modules"
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then
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test -e $substat || touch $substat
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exit 0
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fi
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$GIT submodule update --init $modules 1>/dev/null
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test $? -ne 0 && error "failed to update modules"
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$GIT submodule status $modules > "${substat}"
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test $? -ne 0 && error "failed to save git submodule status" >&2
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;;
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esac
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exit 0
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