From a449f27ffa08de1b01ab5e4fe7daac38f25c9515 Mon Sep 17 00:00:00 2001 From: Taylor Blau Date: Fri, 22 Jun 2018 10:49:45 -0500 Subject: [PATCH] builtin/grep.c: add '--column' option to 'git-grep(1)' Teach 'git-grep(1)' a new option, '--column', to show the column number of the first match on a non-context line. This makes it possible to teach 'contrib/git-jump/git-jump' how to seek to the first matching position of a grep match in your editor, and allows similar additional scripting capabilities. For example: $ git grep -n --column foo | head -n3 .clang-format:51:14:# myFunction(foo, bar, baz); .clang-format:64:7:# int foo(); .clang-format:75:8:# void foo() Signed-off-by: Taylor Blau Signed-off-by: Junio C Hamano --- Documentation/git-grep.txt | 6 ++- builtin/grep.c | 1 + t/t7810-grep.sh | 95 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 101 insertions(+), 1 deletion(-) diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt index 312409a607..31dc0392a6 100644 --- a/Documentation/git-grep.txt +++ b/Documentation/git-grep.txt @@ -13,7 +13,7 @@ SYNOPSIS [-v | --invert-match] [-h|-H] [--full-name] [-E | --extended-regexp] [-G | --basic-regexp] [-P | --perl-regexp] - [-F | --fixed-strings] [-n | --line-number] + [-F | --fixed-strings] [-n | --line-number] [--column] [-l | --files-with-matches] [-L | --files-without-match] [(-O | --open-files-in-pager) []] [-z | --null] @@ -169,6 +169,10 @@ providing this option will cause it to die. --line-number:: Prefix the line number to matching lines. +--column:: + Prefix the 1-indexed byte-offset of the first match from the start of the + matching line. + -l:: --files-with-matches:: --name-only:: diff --git a/builtin/grep.c b/builtin/grep.c index ee753a403e..61bcaf6e58 100644 --- a/builtin/grep.c +++ b/builtin/grep.c @@ -828,6 +828,7 @@ int cmd_grep(int argc, const char **argv, const char *prefix) GREP_PATTERN_TYPE_PCRE), OPT_GROUP(""), OPT_BOOL('n', "line-number", &opt.linenum, N_("show line numbers")), + OPT_BOOL(0, "column", &opt.columnnum, N_("show column number of first match")), OPT_NEGBIT('h', NULL, &opt.pathname, N_("don't show filenames"), 1), OPT_BIT('H', NULL, &opt.pathname, N_("show filenames"), 1), OPT_NEGBIT(0, "full-name", &opt.relative, diff --git a/t/t7810-grep.sh b/t/t7810-grep.sh index 1797f632a3..9312c8daf5 100755 --- a/t/t7810-grep.sh +++ b/t/t7810-grep.sh @@ -99,6 +99,101 @@ do test_cmp expected actual ' + test_expect_success "grep -w $L (with --column)" ' + { + echo ${HC}file:5:foo mmap bar + echo ${HC}file:14:foo_mmap bar mmap + echo ${HC}file:5:foo mmap bar_mmap + echo ${HC}file:14:foo_mmap bar mmap baz + } >expected && + git grep --column -w -e mmap $H >actual && + test_cmp expected actual + ' + + test_expect_success "grep -w $L (with --column, extended OR)" ' + { + echo ${HC}file:14:foo_mmap bar mmap + echo ${HC}file:19:foo_mmap bar mmap baz + } >expected && + git grep --column -w -e mmap$ --or -e baz $H >actual && + test_cmp expected actual + ' + + test_expect_success "grep -w $L (with --column, --invert)" ' + { + echo ${HC}file:1:foo mmap bar + echo ${HC}file:1:foo_mmap bar + echo ${HC}file:1:foo_mmap bar mmap + echo ${HC}file:1:foo mmap bar_mmap + } >expected && + git grep --column --invert -w -e baz $H -- file >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L (with --column, --invert, extended OR)" ' + { + echo ${HC}hello_world:6:HeLLo_world + } >expected && + git grep --column --invert -e ll --or --not -e _ $H -- hello_world \ + >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L (with --column, --invert, extended AND)" ' + { + echo ${HC}hello_world:3:Hello world + echo ${HC}hello_world:3:Hello_world + echo ${HC}hello_world:6:HeLLo_world + } >expected && + git grep --column --invert --not -e _ --and --not -e ll $H -- hello_world \ + >actual && + test_cmp expected actual + ' + + test_expect_success "grep $L (with --column, double-negation)" ' + { + echo ${HC}file:1:foo_mmap bar mmap baz + } >expected && + git grep --column --not \( --not -e foo --or --not -e baz \) $H -- file \ + >actual && + test_cmp expected actual + ' + + test_expect_success "grep -w $L (with --column, -C)" ' + { + echo ${HC}file:5:foo mmap bar + echo ${HC}file-foo_mmap bar + echo ${HC}file:14:foo_mmap bar mmap + echo ${HC}file:5:foo mmap bar_mmap + echo ${HC}file:14:foo_mmap bar mmap baz + } >expected && + git grep --column -w -C1 -e mmap $H >actual && + test_cmp expected actual + ' + + test_expect_success "grep -w $L (with --line-number, --column)" ' + { + echo ${HC}file:1:5:foo mmap bar + echo ${HC}file:3:14:foo_mmap bar mmap + echo ${HC}file:4:5:foo mmap bar_mmap + echo ${HC}file:5:14:foo_mmap bar mmap baz + } >expected && + git grep -n --column -w -e mmap $H >actual && + test_cmp expected actual + ' + + test_expect_success "grep -w $L (with non-extended patterns, --column)" ' + { + echo ${HC}file:5:foo mmap bar + echo ${HC}file:10:foo_mmap bar + echo ${HC}file:10:foo_mmap bar mmap + echo ${HC}file:5:foo mmap bar_mmap + echo ${HC}file:10:foo_mmap bar mmap baz + } >expected && + git grep --column -w -e bar -e mmap $H >actual && + test_cmp expected actual + ' + test_expect_success "grep -w $L" ' { echo ${HC}file:1:foo mmap bar