1 #!/bin/sh 2 # 3 # This code is licensed under the GPL version 2 or later. See 4 # the COPYING file in the top-level directory. 5 6 substat=".git-submodule-status" 7 8 command=$1 9 shift 10 maybe_modules="$@" 11 12 test -z "$maybe_modules" && exit 0 13 test -z "$GIT" && GIT=$(command -v git) 14 15 cd "$(dirname "$0")/.." 16 17 no_git_error= 18 if ! test -e ".git"; then 19 no_git_error='no git checkout exists' 20 elif test -z "$GIT"; then 21 no_git_error='git binary not found' 22 fi 23 24 is_git() { 25 test -z "$no_git_error" 26 } 27 28 update_error() { 29 echo "$0: $*" 30 echo 31 echo "Unable to automatically checkout GIT submodules '$modules'." 32 echo "If you require use of an alternative GIT binary (for example to" 33 echo "enable use of a transparent proxy), please disable automatic" 34 echo "GIT submodule checkout with:" 35 echo 36 echo " $ ./configure --disable-download" 37 echo 38 echo "and then manually update submodules prior to running make, with:" 39 echo 40 echo " $ GIT='tsocks git' scripts/git-submodule.sh update $modules" 41 echo 42 exit 1 43 } 44 45 validate_error() { 46 if is_git && test "$1" = "validate"; then 47 echo "GIT submodules checkout is out of date, and submodules" 48 echo "configured for validate only. Please run" 49 echo " scripts/git-submodule.sh update $maybe_modules" 50 echo "from the source directory or call configure with" 51 echo " --enable-download" 52 fi 53 exit 1 54 } 55 56 check_updated() { 57 local CURSTATUS OLDSTATUS 58 CURSTATUS=$($GIT submodule status $module) 59 OLDSTATUS=$(grep $module $substat) 60 test "$CURSTATUS" = "$OLDSTATUS" 61 } 62 63 if is_git; then 64 test -e $substat || touch $substat 65 modules="" 66 for m in $maybe_modules 67 do 68 $GIT submodule status $m 1> /dev/null 2>&1 69 if test $? = 0 70 then 71 modules="$modules $m" 72 grep $m $substat > /dev/null 2>&1 || $GIT submodule status $module >> $substat 73 else 74 echo "warn: ignoring non-existent submodule $m" 75 fi 76 done 77 else 78 modules=$maybe_modules 79 fi 80 81 case "$command" in 82 status|validate) 83 for module in $modules; do 84 if is_git; then 85 check_updated $module || validate_error "$command" 86 elif ! (set xyz "$module"/* && test -e "$2"); then 87 # The directory does not exist or it contains no files 88 echo "$0: sources not available for $module and $no_git_error" 89 validate_error "$command" 90 fi 91 done 92 ;; 93 94 update) 95 is_git || { 96 echo "$0: unexpectedly called with submodules but $no_git_error" 97 exit 1 98 } 99 100 $GIT submodule update --init $modules 1>/dev/null 101 test $? -ne 0 && update_error "failed to update modules" 102 for module in $modules; do 103 check_updated $module || echo Updated "$module" 104 done 105 106 (while read -r REPLY; do 107 for module in $modules; do 108 case $REPLY in 109 *" $module "*) continue 2 ;; 110 esac 111 done 112 printf '%s\n' "$REPLY" 113 done 114 $GIT submodule status $modules 115 test $? -ne 0 && update_error "failed to save git submodule status" >&2) < $substat > $substat.new 116 mv -f $substat.new $substat 117 ;; 118 esac 119 120 exit 0 121