1 #!/bin/sh 2 # 3 # A small script used to update the content of libcxx/ to a newer 4 # version of libc++. 5 # 6 7 PROGDIR=$(dirname "$0") 8 PROGNAME=$(basename "$0") 9 10 # Assume this script is under tools/ 11 NDK_LIBCXX_DIR=$(cd "$PROGDIR"/.. && pwd) 12 13 # Sanitize environment. 14 set -e 15 export LANG=C 16 export LC_ALL=C 17 18 # Helper functions 19 VERBOSE=1 20 21 run () { 22 if [ "$VERBOSE" -gt 1 ]; then 23 echo "COMMAND: $@" 24 fi 25 case $VERBOSE in 26 0|1) 27 "$@" >/dev/null 2>&1 28 ;; 29 2) 30 "$@" >/dev/null 31 ;; 32 *) 33 "$@" 34 ;; 35 esac 36 } 37 38 log () { 39 if [ "$VERBOSE" -gt 1 ]; then 40 printf "%s\n" "$@" 41 fi 42 } 43 44 get_config_field () { 45 cat "$NDK_LIBCXX_DIR"/upstream.config | awk '$1 == "'$1':" { print $2; }' 46 } 47 48 # Process command line. 49 50 DO_HELP= 51 NO_CLEANUP= 52 53 for opt; do 54 case $opt in 55 --verbose) 56 VERBOSE=$(( $VERBOSE + 1 )) 57 ;; 58 --help) 59 DO_HELP=true 60 ;; 61 --no-cleanup) 62 NO_CLEANUP=true 63 ;; 64 -*) 65 echo "ERROR: Unknown option '$opt'. See --help." 66 exit 1 67 ;; 68 esac 69 done 70 71 if [ "$DO_HELP" ]; then 72 echo "Usage: $PROGNAME [options]" 73 echo "" 74 echo "This script is used to update the LLVM libc++ sources to a" 75 echo "more recent version." 76 echo "" 77 echo "Valid options:" 78 echo " --help Print this message." 79 echo " --verbose Increase verbosity." 80 echo " --no-cleanup Don't remove build directory on exit." 81 echo "" 82 exit 0 83 fi 84 85 # Create build directory. 86 BUILD_DIR=/tmp/ndk-$USER/llvm-libc++/build 87 mkdir -p "$BUILD_DIR" && rm -rf "$BUILD_DIR"/* 88 89 # Ensure it is cleared when this script exits. 90 run_on_exit () { 91 if [ -z "$NO_CLEANUP" ]; then 92 # Remove temporary build directory. 93 rm -rf "$BUILD_DIR" 94 fi 95 } 96 trap "run_on_exit \$?" EXIT QUIT HUP TERM INT 97 98 # Get upstream SVN and revision number. 99 SVN_URL=$(get_config_field svn) 100 if [ -z "$SVN_URL" ]; then 101 echo "ERROR: Can't find SVN upstream in upstream.config!" 102 exit 1 103 fi 104 105 REVISION=$(get_config_field revision) 106 if [ -z "$REVISION" ]; then 107 echo "ERROR: Can't find upstream revision in upstream.config!" 108 exit 1 109 fi 110 111 run cd $BUILD_DIR && 112 echo "Checking out $SVN_URL@$REVISION" 113 run svn co $SVN_URL@$REVISION libcxx > /dev/null 114 run cd libcxx 115 116 echo "Creating git repository and 'master' branch." 117 run git init 118 echo \ 119 ".gitignore 120 .svn/ 121 " > .gitignore 122 123 run git add . 124 run git add -f .gitignore 125 run git commit -m "upstream @$REVISION" 126 127 echo "Create 'ndk' branch and apply patches.android/*" 128 run git branch ndk master 129 run git checkout ndk 130 if [ -d "$NDK_LIBCXX_DIR/patches.android" ]; then 131 ( 132 set +e; 133 run git am "$NDK_LIBCXX_DIR"/patches.android/* 134 if [ "$?" != 0 ]; then 135 echo "A problem occured while applying the patches!!" 136 exit 1 137 fi 138 ) 139 fi 140 141 echo "Updating to newer upstream revision" 142 run git checkout master 143 run git tag revision-$REVISION HEAD 144 145 run svn update 146 NEW_REVISION=$(svn info | awk '$1 == "Revision:" { print $2; }') 147 echo "Found new revision: $NEW_REVISION (was $REVISION)" 148 149 ADDED_FILES=$(git ls-files -o --exclude-standard) 150 MODIFIED_FILES=$(git ls-files -m) 151 REMOVED_FILES=$(git ls-files -d) 152 log "ADDED_FILES='$ADDED_FILES'" 153 log "MODIFIED_FILES='$MODIFIED_FILES'" 154 log "REMOVED_FILES='$REMOVED_FILES'" 155 CHANGED= 156 if [ -n "$ADDED_FILES" ]; then 157 run git add $ADDED_FILES 158 CHANGED=true 159 fi 160 if [ -n "$MODIFIED_FILES" ]; then 161 run git add $MODIFIED_FILES 162 CHANGED=true 163 fi 164 if [ -n "$REMOVED_FILES" ]; then 165 run git rm -f $REMOVED_FILES 166 CHANGED=true 167 fi 168 169 if [ -z "$CHANGED" ]; then 170 echo "No changes detected. Exiting." 171 exit 0 172 fi 173 174 ADDED_COUNT=$(echo "$ADDED_FILES" | wc -l) 175 MODIFIED_COUNT=$(echo "$MODIFIED_FILES" | wc -l) 176 REMOVED_COUNT=$(echo "$REMOVED_FILES" | wc -l) 177 echo "Commiting changes ($ADDED_COUNT new, $MODIFIED_COUNT changed, $REMOVED_COUNT deleted)" 178 run git commit -m "upstream @$NEW_REVISION" 179 run git tag revision-$NEW_REVISION 180 181 echo "Updating NDK branch." 182 run git checkout ndk 183 run git tag android-0 HEAD 184 run git rebase revision-$NEW_REVISION 185 186 echo "Re-creating new Android patches." 187 run git format-patch -k -o "$BUILD_DIR"/patches.android revision-$NEW_REVISION 188 run git format-patch -k -o "$BUILD_DIR"/patches.libcxx android-0 189 190 echo "Updating local sources" 191 run cd "$NDK_LIBCXX_DIR"/libcxx 192 for PATCH in "$BUILD_DIR"/patches.libcxx/*.patch; do 193 ( 194 set +e 195 run patch -p1 < "$PATCH" 196 if [ $? != 0 ]; then 197 echo "ERROR: Can't apply $PATCH properly!" 198 exit 1 199 fi 200 ) 201 done 202 203 echo "Updating local patches" 204 run cd "$NDK_LIBCXX_DIR" 205 run git rm -f patches.android/* 206 run cp "$BUILD_DIR"/patches.android/* patches.android/ 207 run git add patches.android/* 208 209 echo "Updating upstream.config" 210 sed -i -e "s|revision: $REVISION|revision: $NEW_REVISION|" "$NDK_LIBCXX_DIR"/upstream.config 211 git add "$NDK_LIBCXX_DIR"/upstream.config 212 213 echo "Done updating to $NEW_REVISION." 214
