scripts/e4_ui_prep.txt

# e4 only needs to stabilize 4 tags, R0_10, R4_0, R0_11, and R4_1
# we can do that with a much simpler command line

  cvs rtag -D"07/28/2010 00:00" R4_0 e4/org.eclipse.e4.ui >tag40_log.txt 2>&1
  # we use "06/21/2011 00:00" for R4_1
  # R0_10 was applied to everything
  # R4_1 was correctly applied
  # R0_11 was correctly applied
  # R4_1_maintenance was never branched in e4/org.eclipse.e4.ui

  # R4_1_maintenance was branched but I think that needs to be converted by itself 
  # -> e4/org.eclipse.e4.compatibility/bundles/org.eclipse.ui.workbench



# create a local cvs root
# I did this on build.eclipse.org
  mkdir cvsroot.eclipse.platform.ui
  cd cvsroot.eclipse.platform.ui
  cvs -d :local:$(pwd) init

# make a userful subdir to use
  mkdir -p eclipse.platform.ui
  cd eclipse.platform.ui
  mkdir bundles  examples  features  tests

# copy over from modules
  . modules_ui.sh
  cd /cvsroot/eclipse
  for M in $MODULES; do
    cp -r $M /shared/eclipse/e4/git/cvs/cvsroot.eclipse.platform.ui/eclipse.platform.ui/bundles
  done

# move them into tests or examples, as they're all in bundles.



# clean the CVS repo of links
  find cvsroot.eclipse.platform.ui -type l|xargs -n 1 rm

# for this test, I stayed on build.eclipse.org
# can be done on a local machine, if you cp the cvsroot over.


# get the cvs2git tool
  svn co --username=guest --password="" http://cvs2svn.tigris.org/svn/cvs2svn/trunk cvs2svn-trunk

# run the cvs2git tool
  cvs2svn-trunk/cvs2git --options=org.eclipse.migration/eclipse.platform.ui/pass2/cvs2git.options

# create a git repo
  git init --shared eclipse.platform.ui #tmp repo

# try the fast import
  cd eclipse.platform.ui
  cat ../cvs2svn-tmp/git-blob.dat ../cvs2svn-tmp/git-dump.dat | git fast-import

# move the tags into a useful place
  python ../cvs2svn-trunk/contrib/git-move-refs.py

# Prune and pack the repo
  git prune
  git repack -a -d --depth=250 --window=250
  git gc --aggressive
  git repack -a -d --depth=250 --window=250

# verify the repo - this can take long, so for your first test skip this step.
  mkdir compare-tmp
  python $(pwd)/cvs2svn-trunk/contrib/verify-cvs2svn.py \
  --git $(pwd)/cvsroot/eclipse.platform.ui \
  $(pwd)/eclipse.platform.ui \
  --tmp=$(pwd)/compare-tmp --diff >compare-log.txt 2>&1 &

# Fixing the Delete only tags:
  /bin/bash ../org.eclipse.migration/scripts/fix_tags.sh >../tag_report.sh
  grep ^git ../tag_report.sh >../mv_tags.sh
  # examine them
  /bin/bash ../mv_tags.sh

# now examine the repo, hopefully the tags and branches that we care about are in decent shape.
# In my case, I see Cherrypick markers for a couple of tags.  When the conversion is complete and most
# people are happy, a developer will have to examine these commits to see if they
# can be simplified.
Cherrypick tag: R3_0 commit: ec4e21626f848f63af2a079c5f5e161efc8630fa
Cherrypick tag: R3_0_2 commit: ab6a3dacc5785470eaad1a091359123c78b7ea83
Cherrypick tag: R3_1 commit: 805e3ddc8ae21b1c012bd6cffd0f4473e831e695
Cherrypick tag: R3_4_1 commit: 6df1509a2002dea97b89c12b67ac2a24dbe0f726
Cherrypick tag: R3_5 commit: 5d4327c6204d8892eea7dae079391d93bd44c82c

# copy it as pwebster to my home dir
  mkdir eclipse.platform.ui
  cp -r /shared/eclipse/e4/git/cvs/eclipse.platform.ui/.git eclipse.platform.ui


# try and create the bare repo mirror on dev.eclipse.org
  git clone -l --mirror $HOME/eclipse.platform.ui /gitroot/platform/eclipse.platform.ui.git
  # this did not create the permissions that I wanted.

# now it should be a public test repo:
  ssh://pwebster@dev.eclipse.org/gitroot/platform/eclipse.platform.ui.git


#
#
#  All of the stuff below are extra steps.
#



# add a .gitignore to branches you care about ... litter git with commits! :-)
  cd eclipse.platform.ui
#contents:
bin/
target/
*~
*.rej
*.bak




# try and generate some author data to include in the options file
  find org.eclipse.ui.workbench -name "*,v" -exec grep "^date.*author " {} \; >author.raw
  grep -v "Binary file" author.raw | sed 's/^date.*author //g' | sed 's/;.*$//g' | sort -u >author.ids
  for ID in $( cat author.ids ); do
    ENT=$( getent passwd $ID )
    if [ $? -eq 0 ]; then NAME=$( echo $ENT | cut -f5 -d: ); else NAME=$ID; fi
    echo "'$ID' : ('$NAME', '$ID@eclipse.org')," >>author.py
  done

  # or using LDAP, better email addresses
  for ID in $( cat author.ids ); do
    ldapsearch -x -b "dc=eclipse,dc=org" -s sub "(uid=$ID)" >tmp.txt
    NAME=$ID
    EMAIL=$ID
    if grep "numEntries: 1\$" tmp.txt >/dev/null; then
      NAME=$( grep ^cn: tmp.txt | sed 's/cn: //g' )
      #EMAIL=$( grep ^mail: tmp.txt | sed 's/mail: //g' )
    fi
    echo "'$ID' : ('$NAME', '$EMAIL')," >>author.py
  done


# add it to a bare repo
  git remote bareLocal ssh://e4Build@build.eclipse.org/shared/eclipse/e4/git/cvs/eclipse.platform.ui.git
  git push --all bareLocal
  git push --tags bareLocal



# put it into a test location
  cd /gitroot/e4
  git clone -l --mirror $HOME/eclipse.platform.ui.git eclipse.platform.ui.git


# converting a simple map file - this does funky things as it tokenizes the line
  while read LINE; do 
    if (echo $LINE | grep :pserver >/dev/null); then 
      HDR=$( echo $LINE | cut -f1 -d= ) 
      ID=$( echo $HDR | cut -f2 -d\@ )
      TAG=$( echo $LINE | cut -f1 -d, | cut -f2 -d= )
      echo "${HDR}=GIT,tag=${TAG},repo=git://git.eclipse.org/gitroot/e4/eclipse.platform.ui.git,path=bundles/$ID" >>new.map
    else
      echo $LINE >>new.map
    fi
  done <ui.map

# converting a simple map file with sed
  sed 's/^\([^@]*\)@\([^=]*\)=\([^,]*\),.*$/\1@\2=GIT,tag=\3,repo=git:\/\/git.eclipse.org\/gitroot\/e4\/eclipse.platform.ui.git,path=bundles\/\2/g'
  # for tests, we use file:///gitroot
  # provides default path in bundles, needs to be modified afterwards for tests and examples