ppg-push-reports

   1 #!/bin/bash
   2
   3 if [[ -n "${PPG_DEBUG}" ]]; then
   4         set -x
   5 fi
   6
   7 pushd /etc/puppet >/dev/null || exit 1
   8
   9 PPG_EXEC_PATH=$( dirname $(readlink -f "${BASH_SOURCE[0]}" ) )
  10 GIT_EXEC_PATH=$(git --exec-path)
  11 GIT_DIR=$(git rev-parse --git-dir)
  12 GIT_SSH="${PPG_EXEC_PATH}/ppg-ssh"
  13
  14 . ${PPG_EXEC_PATH}/ppg-functions
  15
  16 ### FIXME PROXYSERVER
  17 if [ -z "$GIT_DIR" ]; then
  18         echo >&2 "Not in a git checkout"
  19         exit 1
  20 fi
  21
  22 hostname=$(xhostname)
  23
  24 ## all ops on .ppg
  25
  26 ## FIXME PROXY SERVER
  27 export GIT_DIR=/etc/puppet/.ppg
  28 git  push origin \
  29         refs/heads/${hostname}:refs/heads/${hostname} || exit $?
  30
  31 # reports are tiny, we can spool a month of them safely
  32 # if you want it shorter, configure it so :-)
  33 expiry="one.month.ago"
  34 config_expiry=$(git config --get ppg.reportexpiry)
  35 if [ -n "$config_expiry" ]; then
  36         expiry="$config_expiry"
  37 fi
  38
  39 for head in $(git branch|sed 's/^..//'); do
  40     graft_sha1=$(git log --until="$expiry" -n1 --pretty=format:%H ${head})
  41         if [[ -z "$graft_sha1" ]]; then
  42             # nothing to prune
  43             continue
  44         fi
  45         # is it already grafted?
  46         if grep -q "^${graft_sha1} " "${GIT_DIR}/info/grafts" &>/dev/null ; then
  47                 # don't duplicate the graft
  48                 continue
  49         fi
  50         some_grafted='true'
  51         # prep empty commit
  52         # skip git read-tree --empty, we get the same with
  53         export GIT_INDEX_FILE=/tmp/ppg-emptytree.$$
  54         empty_tree="$(git write-tree)"
  55         rm ${GIT_INDEX_FILE}
  56         unset GIT_INDEX_FILE
  57         empty_commit=$(echo empty | git commit-tree ${empty_tree})
  58         echo "${graft_sha1} ${empty_commit}" >> ${GIT_DIR}/info/grafts
  59 done
  60
  61 if [[ -z "$some_grafted" ]]; then
  62         # nothing to do
  63         exit 0
  64 fi
  65
  66 # ppg-repack makes the unreachable objects "loose"
  67 # git prune --expire actually deletes them
  68 $PPG_EXEC_PATH/ppg-repack -AFfd
  69 git prune --expire=now
  70
  71 ### Cleanup stale grafts
  72 # current grafts points are reachable,
  73 # pruned graft points (made obsolete by a newer graft)
  74 # cannot be retrieved and git cat-file exit code is 128
  75 touch ${GIT_DIR}/info/grafts.tmp.$$
  76 while read line; do
  77         graftpoint=$(echo "${line}" | cut -d' ' -f1)
  78         if git cat-file commit ${graftpoint} &>/dev/null ; then
  79                 echo ${line} >> ${GIT_DIR}/info/grafts.tmp.$$
  80         fi
  81 done < "${GIT_DIR}/info/grafts"
  82
  83 if [ -s ${GIT_DIR}/info/grafts.tmp.$$ ]; then
  84         mv ${GIT_DIR}/info/grafts.tmp.$$ ${GIT_DIR}/info/grafts
  85 fi