sys/src/cmd/git/export

   1 #!/bin/rc
   2 rfork ne
   3 . /sys/lib/git/common.rc
   4
   5 patchname=/tmp/git.patchname.$pid
   6 patchfile=/tmp/git.patchfile.$pid
   7 fn sigexit{
   8         rm -f $patchname $patchfile
   9 }
  10
  11 gitup
  12
  13 flagfmt='o:patchdir patchdir'; args='[query]'
  14 eval `''{aux/getflags $*} || exec aux/usage
  15
  16 if(~ $#patchdir 1 && ! test -d $patchdir)
  17         mkdir -p $patchdir
  18
  19 q=$*
  20 if(~ $#q 0)
  21         q=HEAD
  22 commits=`{git/query $q || die $status}
  23 n=1
  24 m=$#commits
  25
  26
  27 # sleazy hack: we want to run
  28 # under rfork m for the web ui,
  29 # so don't error if we can't mount
  30 mntgen /mnt/scratch >[2]/dev/null || status=''
  31 for(c in $commits){
  32         cp=`{git/query -p $c}
  33         pp=`{git/query -p $c'~'}
  34         fc=`$nl{git/query -c $c~ $c | sed 's/^..//'}
  35
  36         @{
  37                 rfork n
  38                 cd /mnt/scratch
  39                 if(test -d $pp/tree)
  40                         bind $pp/tree a
  41                 if(test -d $cp/tree)
  42                         bind $cp/tree b
  43
  44                 echo From: `{cat $cp/author}
  45                 echo Date: `{date -uf'WW, DD MMM YYYY hh:mm:ss Z' `{walk -em $cp/author}}
  46                 <$cp/msg awk '
  47                 NR == 1 {
  48                         n = ENVIRON["n"]
  49                         m = ENVIRON["m"]
  50                         msg=$0
  51                         if(m > 1)
  52                                 patch = sprintf("[PATCH %d/%d]", n, m)
  53                         else
  54                                 patch = "[PATCH]"
  55                         printf "Subject: %s %s\n\n", patch, msg
  56
  57                         gsub("^[        ]|[     ]$", "", msg)
  58                         gsub("[^a-zA-Z0-9_]+", "-", msg)
  59                         printf "%.4d-%s.patch", n, msg >ENVIRON["patchname"]
  60                         next
  61                 }
  62                 {
  63                         print
  64                 }'
  65                 echo '---'
  66                 echo diff `{basename $pp} `{basename $cp}
  67                 for(f in $fc){
  68                         a=a/$f
  69                         if(! test -e $a)
  70                                 a=/dev/null
  71                         b=b/$f
  72                         if(! test -e $b)
  73                                 b=/dev/null
  74                         ape/diff -urN $a $b
  75                 }
  76         } >$patchfile
  77         if(~ $#patchdir 0){
  78                 cat $patchfile
  79                 ! ~ $n $m && echo
  80         }
  81         if not{
  82                 f=$patchdir/`{cat $patchname}
  83                 mv $patchfile $f
  84                 echo $f
  85         }
  86         n=`{echo $n + 1 | bc}
  87 }
  88 exit ''