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