mdw@git.distorted.org.uk Git - adns/blob - convert

   1 #!/bin/sh
   2 set -ex
   3 base=$HOME/things/Adns/Cvs-Convert
   4 cd $base
   5 tmp=$base/tmp
   6
   7 rm -rf converted
   8
   9 if ! test -d $tmp/git-cvsi; then
  10         rm -rf tmp
  11         mkdir tmp
  12         git cvsimport -d `pwd`/cvs-repo -C tmp/git-cvsi.new -k -p --norc adns
  13         mv tmp/git-cvsi.new tmp/git-cvsi
  14 fi
  15 cd tmp
  16
  17 rsync -aH --delete git-cvsi/. adjust
  18 cd adjust
  19
  20 abandonbranch () {
  21         local oldbranchname=$1
  22         local newtagname=$2
  23         git tag $newtagname $oldbranchname
  24         git branch -D $oldbranchname
  25 }
  26 ensurenotag () {
  27         local tagname=$1
  28         # these two together unconditionally delete the tag if it exists
  29         git tag -f $tagname master
  30         git tag -d $tagname
  31 }
  32 abandondatedbranch () {
  33         local date=$1
  34         local olddesc=$2
  35         local newdesc=$3
  36         if [ "x$newdesc" = x ]; then newdesc=$olddesc; fi
  37         abandonbranch branch-$date-$olddesc abandon.$date.$newdesc
  38         ensurenotag branchpoint-$date-$olddesc master
  39 }
  40 graftmergein () {
  41         local desc=$1
  42         local mergecommit=$2
  43         local branchname=branch-$desc
  44         mkdir -p .git/info
  45         local branchtip=`git rev-parse $branchname~0`
  46         local oldparents=`git log -n1 --pretty=format:%P $mergecommit`
  47         cat <<END >>.git/info/grafts
  48 $2 $oldparents $branchtip
  49 END
  50         git branch -D $branchname
  51         ensurenotag mergepoint-$desc
  52         ensurenotag branchpoint-$desc
  53 }
  54
  55 abandonbranch branch-rrtypenoenum abandon.1998-10-04.rrtypenoenum
  56 abandondatedbranch 1999-04-10 mthread multithread
  57 abandondatedbranch 1999-04-11 ipv6
  58
  59 abandondatedbranch 2000-05-07 ipv6
  60 abandonbranch branch-0-7-inftodebug abandon.2000-03-26.infotodebug-0.7
  61
  62 graftmergein logcallbackfn 741a795cdaa539b48f83afbc0ac8e471543b9bf6
  63 graftmergein 1999-05-09-gplvslgpl e7cf3a99e5829bf53a9f36e08769787a78261045
  64 graftmergein 1999-04-11-pollfds f889c99835eec14dacda4b18da0636911dcd8cbc
  65
  66 xargs git tag -d <<END
  67 tochiark-1998-11-08
  68 fromchiark-1998-11-09
  69 tochiark-1998-11-09-b
  70 fromchiark-1998-11-14
  71 tochiark-1998-11-15
  72 tochiark-1998-11-17
  73 fromchiark-1998-11-28
  74 END
  75
  76 git checkout master
  77 scr=cvs-to-git-conversion-script
  78 cp $base/script/convert $scr
  79 git add $scr
  80 git commit -m "$scr: record the script
  81
  82 Record the script we used to convert the CVS repo to git"
  83 git rm $scr
  84 git commit -m "$scr: delete the script
  85
  86 We have in fact done the conversion and don't need the script any more."
  87
  88 git branch -d origin
  89 git tag cvs-to-git-conversion
  90
  91 cat >$tmp/msg-filter <<'FEND'
  92 perl -ne '
  93                 $out .= $_;
  94         END {
  95                 if ($out =~ /\*\*\* empty log message/) {
  96                         ($out = `git diff $ENV{GIT_COMMIT}^ $ENV{GIT_COMMIT} -- changelog`)
  97                            =~ s/\A.*\n\@\@ /\@\@ /s;
  98                 }
  99                 if ($out !~ /\n.*\n/) {
 100                         $out = `fmt <<'\''EOF'\''
 101 $out
 102 EOF
 103 `;
 104                 }
 105                 if ($out =~ m/^\@\@/s &&
 106                     ($out =~ m/^\+(?!u?adns).*\w.*$/m ||
 107                      $out =~ m/^\-(?!u?adns).*\w.*$/m)) {
 108                         print $&, "\n\n" or die $!;
 109                 }
 110                 print $out or die $!;
 111         }
 112 '
 113 FEND
 114 chmod +x $tmp/msg-filter
 115
 116 git filter-branch --msg-filter $tmp/msg-filter \
 117         `git show-ref | awk '{print $2}'`
 118
 119 git show-ref | awk '{print $2}' | grep '^refs/original/' \
 120         | xargs -n1 git update-ref -d
 121
 122 rm -rf $tmp/converted
 123 mkdir $tmp/converted
 124 cd $tmp/converted
 125 git init
 126 git fetch -u $tmp/adjust 'refs/*:refs/*'
 127 git checkout master