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 grep.
  15 EOF
  16 }
  17
  18 open_editor() {
  19         editor=`git var GIT_EDITOR`
  20         eval "$editor -q \$1"
  21 }
  22
  23 mode_diff() {
  24         git diff --relative "$@" |
  25         perl -ne '
  26         if (m{^\+\+\+ b/(.*)}) { $file = $1; next }
  27         defined($file) or next;
  28         if (m/^@@ .*\+(\d+)/) { $line = $1; next }
  29         defined($line) or next;
  30         if (/^ /) { $line++; next }
  31         if (/^[-+]\s*(.*)/) {
  32                 print "$file:$line: $1\n";
  33                 $line = undef;
  34         }
  35         '
  36 }
  37
  38 mode_merge() {
  39         git ls-files -u |
  40         perl -pe 's/^.*?\t//' |
  41         sort -u |
  42         while IFS= read fn; do
  43                 grep -Hn '^<<<<<<<' "$fn"
  44         done
  45 }
  46
  47 # Grep -n generates nice quickfix-looking lines by itself,
  48 # but let's clean up extra whitespace, so they look better if the
  49 # editor shows them to us in the status bar.
  50 mode_grep() {
  51         git grep -n "$@" |
  52         perl -pe '
  53         s/[ \t]+/ /g;
  54         s/^ *//;
  55         '
  56 }
  57
  58 if test $# -lt 1; then
  59         usage >&2
  60         exit 1
  61 fi
  62 mode=$1; shift
  63
  64 trap 'rm -f "$tmp"' 0 1 2 3 15
  65 tmp=`mktemp -t git-jump.XXXXXX` || exit 1
  66 type "mode_$mode" >/dev/null 2>&1 || { usage >&2; exit 1; }
  67 "mode_$mode" "$@" >"$tmp"
  68 test -s "$tmp" || exit 0
  69 open_editor "$tmp"