git-realgc

   1 #!/usr/bin/env bash
   2
   3 #=======================================================================
   4 # git-realgc
   5 # File ID: a0e45088-d9f3-11e1-b9d0-00c0a8deee11
   6 # Compress a Git repo really good
   7 # License: GNU General Public License version 2 or later.
   8 #=======================================================================
   9
  10 if [ -d .git/. ]; then
  11     dudir=.git
  12 else
  13     dudir=.
  14 fi
  15
  16 test -d $dudir/objects/. || { echo git-realgc: .git/objects/ or objects/ not found >&2; exit 1; }
  17 git count-objects -vH
  18 echo -----------
  19 tot_before=$((find $dudir/objects -type f -printf '%s+' ; echo 0) | bc)
  20 echo tot_before: $(echo $tot_before | commify)
  21 echo ==== git reflog expire --expire=now --expire-unreachable=now --all
  22 git reflog expire --expire=now --expire-unreachable=now --all
  23 echo ==== git gc --prune=now "$@"
  24 git gc --prune=now "$@"
  25 tot_after=$((find $dudir/objects -type f -printf '%s+' ; echo 0) | bc)
  26 saved=$(echo "$tot_before-$tot_after" | bc)
  27 echo -----------
  28 echo tot_before: $(echo $tot_before | commify)
  29 echo tot_after: $(echo $tot_after | commify)
  30 echo -----------
  31 git count-objects -vH
  32 [ "$tot_before" != "0" ] && echo "Totally saved: $(echo $saved | commify) ($(echo "scale=4; 100*$saved/$tot_before" | bc -l)%)"