build_cached

   1 #!/bin/bash
   2
   3 MAKE=$1
   4 SRC=$2
   5 CACHESUBDIR=$3
   6
   7 # skip caching if cache folder is not set or does not exist or omd version length is too small, which would be error prone
   8 if [ "x$BUILD_CACHE" = "x" ] || ! test -d $BUILD_CACHE || [ ${#OMD_VERSION} -lt 5 ]; then
   9     $MAKE -C "$SRC" build
  10     exit $?
  11 fi
  12
  13 BUILD_CACHE=$BUILD_CACHE/$CACHESUBDIR
  14 mkdir -p $BUILD_CACHE
  15
  16 $MAKE -C "$SRC" clean
  17 MD5=$(cd "$SRC" && find . -type f -exec md5sum {} \; | sort | md5sum | awk '{ print $1 }')
  18 CACHE_FILE="$BUILD_CACHE/${SRC}_${MD5}.tgz"
  19
  20 # cache hit - just unpack the already built package
  21 if test -e "$CACHE_FILE"; then
  22     echo "md5sum matched, using cache from $CACHE_FILE"
  23     tar zxf "$CACHE_FILE"
  24     find "$SRC/" -type f | \
  25     while read file; do
  26         if grep -Ic "###BUILD_OMD_VERSION###" "$file" >/dev/null 2>&1; then
  27             cp -p "$file" "$file.tmp"
  28             sed -e "s%###BUILD_OMD_VERSION###%$OMD_VERSION%g" -i "$file"
  29             touch -r "$file.tmp" "$file"
  30             rm -f "$file.tmp"
  31         fi
  32     done
  33
  34     # The version is hard coded in OMD Python binary, fix that.
  35     if [ $SRC = python ]; then
  36         BIN_RPATH=$(strings python/tmp.python27/bin/python2.7 | grep ^/omd/versions)
  37         NEW_RPATH=/omd/versions/$OMD_VERSION/lib
  38         if [ ${#BIN_RPATH} -ne ${#NEW_RPATH} ]; then
  39             echo "python: Can't replace rpath (different length: $BIN_RPATH, $NEW_RPATH). Use chrpath or patchelf to fix this."
  40             exit 1
  41         fi
  42         sed -i "s%$BIN_RPATH%$NEW_RPATH%g" python/tmp.python27/bin/python2.7
  43     fi
  44
  45     exit 0
  46 fi
  47 EXCLUDES_FILE=$(mktemp)
  48 find "$SRC" -type f > $EXCLUDES_FILE
  49
  50 # no cache hit - rebuild package and create cache tarball
  51 set -e
  52 $MAKE -C "$SRC" build
  53 set +e
  54
  55 # create cache file
  56 find "$SRC/" -type f | \
  57 while read file; do
  58     if grep -Ic "$OMD_VERSION" "$file" >/dev/null 2>&1; then
  59         cp -p "$file" "$file.tmp"
  60         sed -e "s%$OMD_VERSION%###BUILD_OMD_VERSION###%g" -i "$file"
  61         touch -r "$file.tmp" "$file"
  62         rm -f "$file.tmp"
  63     fi
  64 done
  65 TARBALL_TMP=$(mktemp)
  66 tar cfz $TARBALL_TMP "$SRC" --exclude-from=$EXCLUDES_FILE
  67 rm -f "$CACHE_FILE"
  68 mv $TARBALL_TMP "$CACHE_FILE"
  69 echo "cache file $CACHE_FILE created"
  70 rm $EXCLUDES_FILE
  71 find "$SRC/" -type f | \
  72 while read file; do
  73     if grep -Ic "###BUILD_OMD_VERSION###" "$file" >/dev/null 2>&1; then
  74         cp -p "$file" "$file.tmp"
  75         sed -e "s%###BUILD_OMD_VERSION###%$OMD_VERSION%g" -i "$file"
  76         touch -r "$file.tmp" "$file"
  77         rm -f "$file.tmp"
  78     fi
  79 done
  80
  81 exit 0