mfbt/double-conversion/update.sh

   1 #!/bin/bash
   2
   3 # Usage: ./update.sh [<git-rev-to-use>]
   4 #
   5 # Copies the needed files from a directory containing the original
   6 # double-conversion source that we need.  If no revision is specified, the tip
   7 # revision is used.  See GIT-INFO for the last revision used.
   8
   9 set -e
  10
  11 LOCAL_PATCHES=""
  12
  13 LOCAL_PATCHES="$LOCAL_PATCHES add-mfbt-api-markers.patch"
  14 LOCAL_PATCHES="$LOCAL_PATCHES use-mozilla-assertions.patch"
  15 LOCAL_PATCHES="$LOCAL_PATCHES debug-only-functions.patch"
  16 LOCAL_PATCHES="$LOCAL_PATCHES to-fixed-dbl-max.patch"
  17
  18 TMPDIR=`mktemp -d`
  19 LOCAL_CLONE="$TMPDIR/new-double-conversion"
  20
  21 git clone https://github.com/google/double-conversion.git "$LOCAL_CLONE"
  22
  23 # If a particular revision was requested, check it out.
  24 if [ "$1" !=  "" ]; then
  25   git -C "$LOCAL_CLONE" checkout "$1"
  26 fi
  27
  28 # First clear out everything already present.
  29 DEST=./double-conversion
  30 mv "$DEST" "$TMPDIR"/old-double-conversion
  31 mkdir "$DEST"
  32
  33 # Copy over critical files.
  34 cp "$LOCAL_CLONE/LICENSE" "$DEST/"
  35 cp "$LOCAL_CLONE/README.md" "$DEST/"
  36
  37 # Includes
  38 for header in "$LOCAL_CLONE/double-conversion/"*.h; do
  39   cp "$header" "$DEST/"
  40 done
  41
  42 # Source
  43 for ccfile in "$LOCAL_CLONE/double-conversion/"*.cc; do
  44   cp "$ccfile" "$DEST/"
  45 done
  46
  47 # Now apply our local patches.
  48 for patch in $LOCAL_PATCHES; do
  49   patch --directory "$DEST" --strip 4 < "$patch"
  50
  51   # Out-of-date patches may spew *.{orig,rej} when applied.  Report an error if
  52   # any such file is found, and roll the source directory back to its previous
  53   # state in such case.
  54   detritus_files=`find "$DEST" -name '*.orig' -o -name '*.rej'`
  55   if [ "$detritus_files" != "" ]; then
  56     echo "ERROR: Local patch $patch created these detritus files when applied:"
  57     echo ""
  58     echo "  $detritus_files"
  59     echo ""
  60     echo "Please fix $patch before running $0."
  61
  62     rm -rf "$DEST"
  63     mv "$TMPDIR"/source "$DEST"
  64
  65     exit 1
  66   fi
  67 done
  68
  69 # Update Mercurial file status.
  70 hg addremove "$DEST"
  71
  72 # Note the revision used in this update.
  73 git -C "$LOCAL_CLONE" show -s > ./GIT-INFO
  74
  75 # Delete the tmpdir.
  76 rm -rf "$TMPDIR"