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

   1 #!/bin/bash
   2
   3 no_build=false
   4 start_from=""
   5
   6 [ "$1" = "-n" ] && {
   7         shift
   8         no_build=true
   9 }
  10 [ "$1" = "-s" ] && {
  11         shift
  12         start_from="$1"
  13         [ -z "$start_from" ] && {
  14                 echo "-s requires a start tree" 1>&2
  15                 exit 1
  16         }
  17         shift
  18 }
  19
  20 . "$(dirname $0)/common.sh"
  21
  22 log()
  23 {
  24         echo "$@" | tee -a $LOG_FILE
  25 }
  26
  27 execute()
  28 {
  29         log "$" $@
  30         $@ 2>&1 | tee -a $LOG_FILE
  31         return ${PIPESTATUS[0]}
  32 }
  33
  34 do_rebase()
  35 {
  36         rbase=${1#*/}
  37         rbase=${rbase%%:*}
  38         rtop=${1#*:}
  39         rbid=$(git rev-parse $2/$rbase)
  40         rtid=$(git rev-parse $2/$rtop)
  41         [ "$rbid" = "$rtid" ] && {
  42                 echo Empty tree
  43                 return
  44         }
  45         [ "$(git rev-list HEAD..$2/$rtop)" ] || {
  46                 echo Already merged
  47                 return
  48         }
  49         execute git clone -s -l -n -q . ../rebase-tmp || {
  50                 echo Clone failed 1>&2
  51                 bash -i || exit
  52         }
  53         log '$' cd ../rebase-tmp
  54         cd ../rebase-tmp
  55         execute git fetch --no-tags ../next refs/remotes/$2/$rtop:$2/$rtop || {
  56                 echo Fetch of top failed 1>&2
  57                 bash -i || exit
  58         }
  59         execute git fetch --no-tags ../next refs/remotes/$2/$rbase:$2/$rbase || {
  60                 echo Fetch of base failed 1>&2
  61                 bash -i || exit
  62         }
  63         execute git checkout $2/$rtop || {
  64                 echo Checkout of top failed 1>&2
  65                 bash -i || exit
  66         }
  67         execute git rebase --onto master $2/$rbase || {
  68                 echo Rebase failed 1>&2
  69                 bash -i || exit
  70         }
  71         log '$' cd ../next
  72         cd ../next
  73         execute git pull -f ../rebase-tmp $2/$rtop || {
  74                 echo Pull failed 1>&2
  75                 echo $h >>../merge.debug
  76                 git diff >>../merge.debug 2>&1
  77                 git diff 2>&1 | egrep -q '<<<<<|^\*' && {
  78                         bash -i || exit
  79                 }
  80         }
  81         execute rm -rf ../rebase-tmp
  82 }
  83
  84 [ -n "$start_from" ] || {
  85         cp /dev/null $LOG_FILE
  86         execute date
  87         execute git checkout master
  88         execute git reset --hard stable
  89         printf 'Name\t\tSHA1\n----\t\t----\n' > $SHA1_FILE
  90
  91 }
  92
  93 heads=$(grep -v '^#' $CTRL_FILE | awk -F '\t' '$2=="quilt" || $2=="git" { printf("%s/%s ", $3, $5); }')
  94
  95 need_build=false
  96
  97 for h in $heads; do
  98         tree=${h%%/*}
  99
 100         [ -n "$start_from" ] && {
 101                 if [ "$tree" = "$start_from" ]; then
 102                         start_from=""
 103                 else
 104                         continue
 105                 fi
 106         }
 107
 108         hlog=$(git log -1 --oneline ${h/\/*://}) 2>/dev/null
 109         log Merging $h "($hlog)"
 110         old_head=$(git rev-parse HEAD)
 111         [ -x "../pre-merge/$tree" ] && {
 112                 "../pre-merge/$tree" || bash -i || exit
 113         }
 114         case "$h" in
 115         *:*)
 116                 do_rebase $h $tree
 117                 ;;
 118         *)
 119                 execute git merge $h || {
 120                         echo Merge failed 1>&2
 121                         echo $h >>../merge.debug
 122                         git diff >>../merge.debug 2>&1
 123                         git diff 2>&1 | egrep -q '<<<<<|^\*' && {
 124                                 bash -i || exit
 125                         }
 126                         GIT_EDITOR=: execute git commit -v -a
 127                         execute git diff -M --stat --summary 'HEAD^..'
 128                 }
 129                 ;;
 130         esac
 131         [ -f "../merge-fixes/$tree" ] && {
 132                 for p in $(cat "../merge-fixes/$tree"); do
 133                         "$bin_dir/merge_fix" -n "$p" || {
 134                                 bash -i || exit
 135                         }
 136                 done
 137         }
 138         tab="\t"
 139         [ $(echo "$tree" | wc -c) -le 8 ] && tab="\t\t"
 140         printf "%s$tab%s\n" $tree $(git show-ref --hash "${h/\/*://}") >> $SHA1_FILE
 141         [ -x "../pre-build/$tree" ] && {
 142                 "../pre-build/$tree" || bash -i || exit
 143         }
 144         $no_build && continue
 145         $need_build || {
 146                 # See if we need to build after merging this tree
 147                 new_head=$(git rev-parse HEAD)
 148                 [ "$old_head" = "$new_head" ] ||
 149                         [ "$(git diff ${old_head}.. | wc -c)" -eq 0 ] ||
 150                                 need_build=true
 151         }
 152         $need_build ||
 153                 continue
 154         do_build=$(grep -v '^#' $CTRL_FILE | awk -F '   ' '$3=="'$tree'" { print $6; }')
 155         [ "$do_build" = "yes" ] ||
 156                 continue
 157         git push -f "$build_host":"$build_dir" master:refs/heads/next || {
 158                 echo git push failed 1>&2
 159                 bash -i || exit
 160         }
 161         "$bin_dir/do_build" || {
 162                 echo Build failed 1>&2
 163                 bash -i || exit
 164         }
 165         need_build=false
 166 done
 167
 168 exit 0