git.ozlabs.org Git - next-scripts/blob - update_trees

   1 #!/bin/bash
   2
   3 log_file=../quilt-import.log
   4 #cp /dev/null $log_file
   5
   6 log()
   7 {
   8         echo "$@" | tee -a $log_file
   9 }
  10
  11 execute()
  12 {
  13         log "$" $@
  14         "$@" 2>&1 | tee -a $log_file
  15         [ ${PIPESTATUS[0]} -eq 0 ] || $SHELL -i || exit 1
  16 }
  17
  18 cpwd=$(pwd)
  19
  20 quilters=$(grep -v '^#' ../real_control | awk -F '\t' '$2=="quilt" { print $3; }')
  21
  22 for name in $quilters; do
  23
  24         sfile="../quilt/$name/series"
  25         base=$(sed -n 's/^#[ \t]*NEXT[-_]BASE[ \t]*\([^ \t]*\)[ \t]*$/\1/p' "$sfile")
  26         if [ -n "$base" ]; then
  27                 nbase=$(grep -v '^#' ../real_control | awk -F '\t' '$3=="'"$base"'" { printf("%s/%s", "'"$base"'", $5); }')
  28                 [ -n "$nbase" ] && base="$nbase"
  29         else
  30                 base=$(sed -n 's/^#[ \t]*BASE[ \t]*\(.*\)[ \t]*$/\1/p' "$sfile")
  31                 [ -n "$base" ] || {
  32                         # for stgit
  33                         base=$(sed '1{s/^#.*GIT commit \(.*\)$/\1/;q}' "$sfile")
  34                         [ -n "$base" ] ||
  35                                 base="origin/master"
  36                 }
  37         fi
  38         rbase="$base"
  39         case "$base" in
  40         *-git[0-9]*)    rbase=$($(dirname $0)/get_gitid "${base}")
  41                         ;;
  42         commit*)        rbase=${base##commit*[[:space:]]}
  43                         ;;
  44         [0-9]*.*)       rbase="v$base"
  45                         ;;
  46         esac
  47         log "Importing $name based on $base"
  48         rbase_sha1=$(git rev-parse --verify "$rbase^{commit}") || {
  49                 log "Unknown BASE"
  50                 continue
  51         }
  52
  53         # don't bother importing things that haven't changed
  54         mb=$(git merge-base "$rbase_sha1" "$name/master")
  55         change_size=$(cd ../quilt;git diff last_merge.. -- "$name/" | wc -c)
  56         [ "$mb" = "$rbase_sha1" ] && [ $change_size -eq 0 ] && {
  57                 log "Unchanged quilt series $name"
  58                 continue
  59         }
  60
  61         sed_exp='s/[ \t]*#.*$//;/^[ \t]*$/!p'
  62         grep -q NEXT_PATCHES "$sfile" &&
  63                 sed_exp='/NEXT_PATCHES_START/,/NEXT_PATCHES_END/{'"$sed_exp"';}'
  64         patches=$(sed -n "$sed_exp" "$sfile")
  65
  66         git show-ref --quiet --verify "refs/heads/$name/master" ||
  67                 execute git branch "$name/master" "$rbase_sha1"
  68
  69         [ -n "$patches" ] || {
  70                 log "   quilt series is empty"
  71                 execute git branch -f "$name/master" "$rbase_sha1"
  72                 continue
  73         }
  74
  75         [ -d "../quilt-tmp" ] ||
  76                 execute git clone -s -l -n -q . ../quilt-tmp
  77
  78         log '$' cd ../quilt-tmp
  79         cd ../quilt-tmp
  80         execute git reset --hard "$rbase_sha1"
  81
  82         for f in $patches; do
  83                 old_head=$(git rev-parse --verify HEAD)
  84                 execute git am "../quilt/$name/$f"
  85                 new_head=$(git rev-parse --verify HEAD)
  86                 [ "$new_head" = "$old_head" ] && {
  87                         echo "Tree unchanged, please check ..."
  88                         bash -i || exit
  89                 }
  90         done
  91
  92         log '$' cd $cpwd
  93         cd $cpwd
  94
  95         execute git fetch -f ../quilt-tmp master:"$name/master"
  96 done
  97
  98 [ -d "../quilt-tmp" ] &&
  99         rm -rf ../quilt-tmp
 100
 101 ( cd ../quilt; git branch -f last_merge HEAD )
 102
 103 exit 0