server/functions

   1 #!/bin/sh
   2
   3 # Sets: new_commits
   4 # Assumes: $oldrev $newrev $refname
   5 #
   6 # This is for use in post receive hooks, as it assumes the refname has moved and
   7 # is now newrev, we need to discard it. This is down with bash string replace,
   8 # as it will replace only the first match, compared to the canonical "grep -v"
   9 # approach which will throw out multiple matches if the same commit is referred
  10 # to by multiple branches.
  11 function set_new_commits() {
  12         nl=$'\n'
  13
  14         # Get all the current branches, not'd as we want only new ones
  15         new_commits=$(git rev-parse --not --branches)
  16
  17         # Strip off the not current branch
  18         new_hash=$(git rev-parse $refname)
  19         new_commits=${new_commits/^$new_hash/}
  20
  21         # Put back newrev without the not
  22         new_commits=${new_commits}${nl}${newrev}
  23
  24         # Put in ^oldrev if it's not a new branch
  25         if [ "$oldrev" != "0000000000000000000000000000000000000000" ] ; then
  26                 new_commits=${new_commits}${nl}^${oldrev}
  27         fi
  28
  29         new_commits=${new_commits/$nl$nl/$nl}
  30         new_commits=${new_commits/#$nl/}
  31 }
  32
  33 # Sets: $change_type
  34 # Assumes: $oldrev $newrev
  35 #
  36 # --- Interpret
  37 # 0000->1234 (create)
  38 # 1234->2345 (update)
  39 # 2345->0000 (delete)
  40 function set_change_type() {
  41         if [ "$oldrev" == "0000000000000000000000000000000000000000" ] ; then
  42                 change_type="create"
  43         else
  44                 if [ "$newrev" == "0000000000000000000000000000000000000000" ] ; then
  45                         change_type="delete"
  46                 else
  47                         change_type="update"
  48                 fi
  49         fi
  50 }
  51
  52 # Sets: $newrev_type $oldrev_type $rev $rev_type
  53 # Assumes: $newrev $oldrev
  54 # --- Get the revision types
  55 function set_rev_types() {
  56         newrev_type=$(git cat-file -t "$newrev" 2> /dev/null)
  57         oldrev_type=$(git cat-file -t "$oldrev" 2> /dev/null)
  58         if [ "$newrev" == "0000000000000000000000000000000000000000" ] ; then
  59                 rev_type="$oldrev_type"
  60                 rev="$oldrev"
  61         else
  62                 rev_type="$newrev_type"
  63                 rev="$newrev"
  64         fi
  65 }
  66
  67 # Sets: $describe
  68 # Assumes: $rev
  69 #
  70 # The email subject will contain the best description of the ref that we can build from the parameters
  71 function set_describe() {
  72         describe=$(git describe $rev 2>/dev/null)
  73         if [ -z "$describe" ]; then
  74                 describe=$rev
  75         fi
  76 }
  77