105 lines
2.7 KiB
Bash
105 lines
2.7 KiB
Bash
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#!/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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# if --with-git-submodules=ignore, do nothing
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test "$command" = "ignore" && exit 0
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test -z "$GIT" && GIT=git
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cd "$(dirname "$0")/.."
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update_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 --with-git-submodules=validate"
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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-submodule.sh update $modules"
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echo
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exit 1
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}
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validate_error() {
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if test "$1" = "validate"; then
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echo "GIT submodules checkout is out of date, and submodules"
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echo "configured for validate only. Please run"
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echo " scripts/git-submodule.sh update $maybe_modules"
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echo "from the source directory or call configure with"
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echo " --with-git-submodules=update"
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echo "To disable GIT submodules validation, use"
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echo " --with-git-submodules=ignore"
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fi
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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|validate)
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if test -z "$maybe_modules"
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then
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test -s ${substat} && validate_error "$command" || exit 0
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fi
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test -f "$substat" || validate_error "$command"
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for module in $modules; do
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CURSTATUS=$($GIT submodule status $module)
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OLDSTATUS=$(cat $substat | grep $module)
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if test "$CURSTATUS" != "$OLDSTATUS"; then
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validate_error "$command"
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fi
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done
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exit 0
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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 $? -ne 0 && update_error "failed to update modules"
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$GIT submodule status $modules > "${substat}"
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test $? -ne 0 && update_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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