tg-annihilate.sh

   1 #!/bin/sh
   2 # TopGit - A different patch queue manager
   3 # (c) Petr Baudis <pasky@suse.cz>  2008
   4 # (c) Per Cederqvist <ceder@lysator.liu.se>  2010
   5 # GPLv2
   6
   7 force= # Whether to annihilate non-empty branch, or branch where only the base is left.
   8
   9
  10 ## Parse options
  11
  12 while [ -n "$1" ]; do
  13         arg="$1"; shift
  14         case "$arg" in
  15         -f)
  16                 force=1;;
  17         *)
  18                 echo "Usage: tg [...] annihilate [-f]" >&2
  19                 exit 1;;
  20         esac
  21 done
  22
  23
  24 ## Sanity checks
  25
  26 name="$(git symbolic-ref HEAD | sed 's#^refs/heads/##')"
  27 branchrev="$(git rev-parse --verify "$name" 2>/dev/null)" ||
  28         die "invalid branch name: $name"
  29 baserev="$(git rev-parse --verify "refs/top-bases/$name" 2>/dev/null)" ||
  30         die "not a TopGit topic branch: $name"
  31
  32 [ -z "$force" ] && { branch_empty "$name" || die "branch is non-empty: $name"; }
  33
  34 ## Annihilate
  35 mb="$(git merge-base "refs/top-bases/$name" "$name")"
  36 git read-tree "$mb^{tree}"
  37 # Need to pass --no-verify in order to inhibit TopGit's pre-commit hook to run,
  38 # which would bark upon missing .top* files.
  39 git commit --no-verify -m"TopGit branch $name annihilated."
  40
  41 # Propagate the dependencies through to dependents (if any), if they don't already have them
  42 dependencies="$(tg prev -w)"
  43 tg next | while read dependent; do
  44         git checkout -f $dependent
  45         for dependency in $dependencies; do
  46                 tg depend add "$dependency" 2>/dev/null
  47         done
  48 done
  49
  50 info "If you have shared your work, you might want to run tg push $name now."
  51 git status
  52
  53 # vim:noet