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="$1"
  14         case "$arg" in
  15         --)
  16                 case "$2" in
  17                 -*)
  18                         shift; break;;
  19                 *)
  20                         break;;
  21                 esac;;
  22         -|-h|--help)
  23                 echo "Usage: ${tgname:-tg} [...] patch [-i | -w] [--binary] [<name>] [--] [<git-diff-tree-option>...]" >&2
  24                 exit 1;;
  25         -i|-w)
  26                 [ -z "$head_from" ] || die "-i and -w are mutually exclusive"
  27                 head_from="$arg";;
  28         --binary)
  29                 binary=1;;
  30         -?*)
  31                 if test="$(verify_topgit_branch "$arg" -f)"; then
  32                         [ -z "$name" ] || die "name already specified ($name)"
  33                         name="$arg"
  34                 else
  35                         break
  36                 fi;;
  37         *)
  38                 [ -z "$name" ] || die "name already specified ($name)"
  39                 name="$arg";;
  40         esac
  41         shift
  42 done
  43
  44 quotearg() {
  45         printf '%s' "$1" | sed 's/\(['\''!]\)/'\'\\\\\\1\''/g'
  46 }
  47
  48 head="$(git symbolic-ref HEAD)"
  49 head="${head#refs/heads/}"
  50
  51 [ -n "$name" ] ||
  52         name="${head:-HEAD}"
  53 name="$(verify_topgit_branch "$name")"
  54 base_rev="$(git rev-parse --short --verify "refs/top-bases/$name" 2>/dev/null)" ||
  55         die "not a TopGit-controlled branch"
  56
  57 if [ -n "$head_from" ] && [ "$name" != "$head" ]; then
  58         die "$head_from makes only sense for the current branch"
  59 fi
  60
  61
  62
  63 USE_PAGER_TYPE=diff
  64 setup_pager
  65 # We now collect the rest of the code in this file into a block
  66 # so we can redirect the output to the pager.
  67 {
  68
  69 # put out the commit message
  70 # and put an empty line out, if the last one in the message was not an empty line
  71 # and put out "---" if the commit message does not have one yet
  72 cat_file "$name:.topmsg" $head_from |
  73         awk '
  74 /^---/ {
  75     has_3dash=1;
  76 }
  77        {
  78     need_empty = 1;
  79     if ($0 == "")
  80         need_empty = 0;
  81     print;
  82 }
  83 END    {
  84     if (need_empty)
  85         print "";
  86     if (!has_3dash)
  87         print "---";
  88 }
  89 '
  90
  91 b_tree=$(pretty_tree "$name" -b)
  92 t_tree=$(pretty_tree "$name" $head_from)
  93
  94 if [ $b_tree = $t_tree ]; then
  95         echo "No changes."
  96 else
  97         hasdd=
  98         for a; do
  99                 [ "$a" != "--" ] || { hasdd=1; break; }
 100         done
 101         if [ -z "$hasdd" ]; then
 102                 git diff-tree -p --stat --summary ${binary:+--binary} "$@" $b_tree $t_tree
 103         else
 104                 cmd="git diff-tree -p --stat --summary ${binary:+--binary}"
 105                 while [ $# -gt 0 -a "$1" != "--" ]; do
 106                         cmd="$cmd '$(quotearg "$1")'"
 107                         shift
 108                 done
 109                 cmd="$cmd '$(quotearg "$b_tree")' '$(quotearg "$t_tree")'"
 110                 while [ $# -gt 0 ]; do
 111                         cmd="$cmd '$(quotearg "$1")'"
 112                         shift
 113                 done
 114                 eval "$cmd"
 115         fi
 116 fi
 117
 118 echo '-- '
 119 echo "$tgname: ($base_rev..) $name (depends on: $(cat_file "$name:.topdeps" $head_from 2>/dev/null | paste -s -d ' ' -))"
 120 branch_contains "$name" "$base_rev" ||
 121         echo "$tgname: The patch is out-of-date wrt. the base! Run \`$tgdisplay update\`."
 122
 123 } | eval "$TG_PAGER"
 124 # ... and then we pipe all the output through the pager
 125
 126 # vim:noet