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

   1 #!/bin/bash
   2
   3 #cp /dev/null ../quilt-import.log
   4
   5 log()
   6 {
   7         echo "$@" | tee -a ../quilt-import.log
   8 }
   9
  10 execute()
  11 {
  12         log "$" $@
  13         "$@" 2>&1 | tee -a ../quilt-import.log
  14         [ ${PIPESTATUS[0]} -eq 0 ] || sh -i || {
  15                 [ -f "$sfile.orig" ] &&
  16                         mv -f "$sfile.orig" "$sfile"
  17                 exit 1
  18         }
  19 }
  20
  21 quilters=$(grep -v '^#' ../real_control | awk -F '      ' '$2=="quilt" { print $3; }')
  22
  23 for name in $quilters; do
  24
  25         sfile="../quilt/$name/series"
  26         base=$(sed -n 's/^#[    ]*NEXT[-_]BASE[         ]*\([^  ]*\)[   ]*$/\1/p' "$sfile")
  27         if [ -n "$base" ]; then
  28                 nbase=$(grep -v '^#' ../real_control | awk -F ' ' '$3=="'"$base"'" { if ($2=="quilt") printf("quilt/%s", "'"$base"'"); else printf("%s/%s", "'"$base"'", $5); }')
  29                 [ -n "$nbase" ] && base="$nbase"
  30         else
  31                 base=$(sed -n 's/^#[    ]*BASE[         ]*\(.*\)[       ]*$/\1/p' "$sfile")
  32                 [ -n "$base" ] || {
  33                         # for stgit
  34                         base=$(sed '1{s/^#.*GIT commit \(.*\)$/\1/;q}' "$sfile")
  35                         [ -n "$base" ] ||
  36                                 base="origin/master"
  37                 }
  38         fi
  39         rbase="$base"
  40         case "$base" in
  41         *-git[0-9]*)    rbase=$($(dirname $0)/get_gitid "${base}")
  42                         ;;
  43         commit*)        rbase=$(expr "$base" : "commit[         ]*\(.*\)")
  44                         ;;
  45         [0-9]*.*)       rbase="v$base"
  46                         ;;
  47         esac
  48         log "Importing $name based on $base"
  49         rbase_sha1=$(git rev-parse --verify "$rbase^{commit}") || {
  50                 log "Unknown BASE"
  51                 continue
  52         }
  53
  54         # don't bother importing things that haven't changed
  55         mb=$(git merge-base "$rbase_sha1" "quilt/$name")
  56         change_size=$(cd ../quilt;git diff last_merge.. -- "$name/" | wc -c)
  57         [ "$mb" = "$rbase_sha1" ] && [ $change_size -eq 0 ] && {
  58                 log "Unchanged quilt series $name"
  59                 continue
  60         }
  61
  62         mv -f "$sfile" "$sfile.orig"
  63         do_echo=echo
  64         grep -q NEXT_PATCHES "$sfile.orig" && do_echo=:
  65         while read line; do
  66                 case $line in
  67                 *NEXT_PATCHES_START*)   do_echo=echo
  68                                         ;;
  69                 *NEXT_PATCHES_END*)     do_echo=:
  70                                         ;;
  71                 esac
  72                 $do_echo $line
  73         done <"$sfile.orig" |
  74                 sed -e 's/[     ]*#.*$//' -e '/^[       ]*$/d' >"$sfile"
  75
  76         git show-ref --quiet --verify "refs/heads/quilt/$name" ||
  77                 execute git branch "quilt/$name" "$rbase_sha1"
  78
  79         [ -s "$sfile" ] || {
  80                 log "   quilt series is empty"
  81                 mv -f "$sfile.orig" "$sfile"
  82                 execute git update-ref "refs/heads/quilt/$name" "$rbase_sha1"
  83                 continue
  84         }
  85
  86         [ -d "../quilt-tmp" ] ||
  87                 execute git clone -s -l -n -q . ../quilt-tmp
  88
  89         log '$' cd ../quilt-tmp
  90         cd ../quilt-tmp
  91         execute git reset --hard "$rbase_sha1"
  92
  93         while read f <&5 ; do
  94                 old_head=$(git rev-parse --verify HEAD)
  95                 execute git am "../quilt/$name/$f"
  96                 new_head=$(git rev-parse --verify HEAD)
  97                 [ "$new_head" = "$old_head" ] && {
  98                         echo "Tree unchanged, please check ..."
  99                         bash -i || exit
 100                 }
 101         done 5<"../quilt/$name/series"
 102
 103         log '$' cd ../next
 104         cd ../next
 105
 106         execute git fetch -f ../quilt-tmp master:"quilt/$name"
 107
 108         mv -f "$sfile.orig" "$sfile"
 109 done
 110
 111 [ -d "../quilt-tmp" ] &&
 112         rm -rf ../quilt-tmp
 113
 114 ( cd ../quilt; git update-ref refs/heads/last_merge HEAD )
 115
 116 exit 0