contrib/git-jump/git-jump

   1 #!/bin/sh
   2
   3 usage() {
   4         cat <<\EOF
   5 usage: git jump <mode> [<args>]
   6
   7 Jump to interesting elements in an editor.
   8 The <mode> parameter is one of:
   9
  10 diff: elements are diff hunks. Arguments are given to diff.
  11
  12 merge: elements are merge conflicts. Arguments are ignored.
  13
  14 grep: elements are grep hits. Arguments are given to git grep or, if
  15       configured, to the command in `jump.grepCmd`.
  16
  17 ws: elements are whitespace errors. Arguments are given to diff --check.
  18 EOF
  19 }
  20
  21 open_editor() {
  22         editor=`git var GIT_EDITOR`
  23         eval "$editor -q \$1"
  24 }
  25
  26 mode_diff() {
  27         git diff --no-prefix --relative "$@" |
  28         perl -ne '
  29         if (m{^\+\+\+ (.*)}) { $file = $1; next }
  30         defined($file) or next;
  31         if (m/^@@ .*?\+(\d+)/) { $line = $1; next }
  32         defined($line) or next;
  33         if (/^ /) { $line++; next }
  34         if (/^[-+]\s*(.*)/) {
  35                 print "$file:$line: $1\n";
  36                 $line = undef;
  37         }
  38         '
  39 }
  40
  41 mode_merge() {
  42         git ls-files -u |
  43         perl -pe 's/^.*?\t//' |
  44         sort -u |
  45         while IFS= read fn; do
  46                 grep -Hn '^<<<<<<<' "$fn"
  47         done
  48 }
  49
  50 # Grep -n generates nice quickfix-looking lines by itself,
  51 # but let's clean up extra whitespace, so they look better if the
  52 # editor shows them to us in the status bar.
  53 mode_grep() {
  54         cmd=$(git config jump.grepCmd)
  55         test -n "$cmd" || cmd="git grep -n"
  56         $cmd "$@" |
  57         perl -pe '
  58         s/[ \t]+/ /g;
  59         s/^ *//;
  60         '
  61 }
  62
  63 mode_ws() {
  64         git diff --check "$@"
  65 }
  66
  67 if test $# -lt 1; then
  68         usage >&2
  69         exit 1
  70 fi
  71 mode=$1; shift
  72
  73 trap 'rm -f "$tmp"' 0 1 2 3 15
  74 tmp=`mktemp -t git-jump.XXXXXX` || exit 1
  75 type "mode_$mode" >/dev/null 2>&1 || { usage >&2; exit 1; }
  76 "mode_$mode" "$@" >"$tmp"
  77 test -s "$tmp" || exit 0
  78 open_editor "$tmp"