tg-patch.sh

   1 #!/bin/sh
   2 # TopGit - A different patch queue manager
   3 # (c) Petr Baudis <pasky@suse.cz>  2008
   4 # GPLv2
   5
   6 name=
   7 head_from=
   8 binary=
   9
  10 ## Parse options
  11
  12 while [ -n "$1" ]; do
  13         arg="$1"; shift
  14         case "$arg" in
  15         -i|-w)
  16                 [ -z "$head_from" ] || die "-i and -w are mutually exclusive"
  17                 head_from="$arg";;
  18         --binary)
  19                 binary=1;;
  20         -*)
  21                 echo "Usage: ${tgname:-tg} [...] patch [-i | -w] [--binary] [<name>]" >&2
  22                 exit 1;;
  23         *)
  24                 [ -z "$name" ] || die "name already specified ($name)"
  25                 name="$arg";;
  26         esac
  27 done
  28
  29 head="$(git symbolic-ref HEAD)"
  30 head="${head#refs/heads/}"
  31
  32 [ -n "$name" ] ||
  33         name="${head:-HEAD}"
  34 name="$(verify_topgit_branch "$name")"
  35 base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)" ||
  36         die "not a TopGit-controlled branch"
  37
  38 if [ -n "$head_from" ] && [ "$name" != "$head" ]; then
  39         die "$head_from makes only sense for the current branch"
  40 fi
  41
  42
  43
  44 USE_PAGER_TYPE=diff
  45 setup_pager
  46 # We now collect the rest of the code in this file into a block
  47 # so we can redirect the output to the pager.
  48 {
  49
  50 # put out the commit message
  51 # and put an empty line out, if the last one in the message was not an empty line
  52 # and put out "---" if the commit message does not have one yet
  53 cat_file "$name:.topmsg" $head_from |
  54         awk '
  55 /^---/ {
  56     has_3dash=1;
  57 }
  58        {
  59     need_empty = 1;
  60     if ($0 == "")
  61         need_empty = 0;
  62     print;
  63 }
  64 END    {
  65     if (need_empty)
  66         print "";
  67     if (!has_3dash)
  68         print "---";
  69 }
  70 '
  71
  72 b_tree=$(pretty_tree "$name" -b)
  73 t_tree=$(pretty_tree "$name" $head_from)
  74
  75 if [ $b_tree = $t_tree ]; then
  76         echo "No changes."
  77 else
  78         git diff-tree -p --stat ${binary:+--binary} $b_tree $t_tree
  79 fi
  80
  81 echo '-- '
  82 echo "$tgname: ($base_rev..) $name (depends on: $(cat_file "$name:.topdeps" $head_from 2>/dev/null | paste -s -d ' ' -))"
  83 branch_contains "$name" "$base_rev" ||
  84         echo "$tgname: The patch is out-of-date wrt. the base! Run \`$tgdisplay update\`."
  85
  86 } | eval "$TG_PAGER"
  87 # ... and then we pipe all the output through the pager
  88
  89 # vim:noet