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git/contrib/git-jump/git-jump
Jeff King 21e4631c07 contrib: add git-jump script
This is a small script for helping your editor jump to
specific points of interest. See the README for details.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2011-10-21 13:55:59 -07:00

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#!/bin/sh
usage() {
cat <<\EOF
usage: git jump <mode> [<args>]
Jump to interesting elements in an editor.
The <mode> parameter is one of:
diff: elements are diff hunks. Arguments are given to diff.
merge: elements are merge conflicts. Arguments are ignored.
grep: elements are grep hits. Arguments are given to grep.
EOF
}
open_editor() {
editor=`git var GIT_EDITOR`
eval "$editor -q \$1"
}
mode_diff() {
git diff --relative "$@" |
perl -ne '
if (m{^\+\+\+ b/(.*)}) { $file = $1; next }
defined($file) or next;
if (m/^@@ .*\+(\d+)/) { $line = $1; next }
defined($line) or next;
if (/^ /) { $line++; next }
if (/^[-+]\s*(.*)/) {
print "$file:$line: $1\n";
$line = undef;
}
'
}
mode_merge() {
git ls-files -u |
perl -pe 's/^.*?\t//' |
sort -u |
while IFS= read fn; do
grep -Hn '^<<<<<<<' "$fn"
done
}
# Grep -n generates nice quickfix-looking lines by itself,
# but let's clean up extra whitespace, so they look better if the
# editor shows them to us in the status bar.
mode_grep() {
git grep -n "$@" |
perl -pe '
s/[ \t]+/ /g;
s/^ *//;
'
}
if test $# -lt 1; then
usage >&2
exit 1
fi
mode=$1; shift
trap 'rm -f "$tmp"' 0 1 2 3 15
tmp=`mktemp -t git-jump.XXXXXX` || exit 1
type "mode_$mode" >/dev/null 2>&1 || { usage >&2; exit 1; }
"mode_$mode" "$@" >"$tmp"
test -s "$tmp" || exit 0
open_editor "$tmp"