This commit teaches 'git-grep(1)' a new option, '--column-number'. This
option builds upon previous commits to show the column number of the
first match on a non-context line.

For example:

  $ ./git-grep -n --column-number foo | head -n3
  .clang-format:51:14:# myFunction(foo, bar, baz);
  .clang-format:64:7:# int foo();
  .clang-format:75:8:# void foo()

Now that configuration variables such as grep.columnNumber and
color.grep.columnNumber have a visible effect, we document them in this
patch as well.

While we're at it, change color.grep.linenumber to color.grep.lineNumber
to match the casing of nearby variables.

Signed-off-by: Taylor Blau <m...@ttaylorr.com>
---
 Documentation/config.txt   |  7 ++++++-
 Documentation/git-grep.txt |  8 +++++++-
 builtin/grep.c             |  1 +
 t/t7810-grep.sh            | 22 ++++++++++++++++++++++
 4 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 2659153cb3..1645fcf2ae 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -1157,8 +1157,10 @@ color.grep.<slot>::
        filename prefix (when not using `-h`)
 `function`;;
        function name lines (when using `-p`)
-`linenumber`;;
+`lineNumber`;;
        line number prefix (when using `-n`)
+`columnNumber`;;
+       column number prefix (when using `--column-number`)
 `match`;;
        matching text (same as setting `matchContext` and `matchSelected`)
 `matchContext`;;
@@ -1708,6 +1710,9 @@ gitweb.snapshot::
 grep.lineNumber::
        If set to true, enable `-n` option by default.
 
+grep.columnNumber::
+       If set to true, enable `-m` option by default.
+
 grep.patternType::
        Set the default matching behavior. Using a value of 'basic', 'extended',
        'fixed', or 'perl' will enable the `--basic-regexp`, 
`--extended-regexp`,
diff --git a/Documentation/git-grep.txt b/Documentation/git-grep.txt
index 18b494731f..b75a039768 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-number]
           [-l | --files-with-matches] [-L | --files-without-match]
           [(-O | --open-files-in-pager) [<pager>]]
           [-z | --null]
@@ -44,6 +44,9 @@ CONFIGURATION
 grep.lineNumber::
        If set to true, enable `-n` option by default.
 
+grep.columnNumber::
+       If set to true, enable `-m` option by default.
+
 grep.patternType::
        Set the default matching behavior. Using a value of 'basic', 'extended',
        'fixed', or 'perl' will enable the `--basic-regexp`, 
`--extended-regexp`,
@@ -169,6 +172,9 @@ providing this option will cause it to die.
 --line-number::
        Prefix the line number to matching lines.
 
+--column-number::
+       Prefix the 1-indexed column number of the first match on non-context 
lines.
+
 -l::
 --files-with-matches::
 --name-only::
diff --git a/builtin/grep.c b/builtin/grep.c
index 5f32d2ce84..23ce97f998 100644
--- a/builtin/grep.c
+++ b/builtin/grep.c
@@ -829,6 +829,7 @@ 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-number", &opt.columnnum, N_("show column 
numbers")),
                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..7349c7fadc 100755
--- a/t/t7810-grep.sh
+++ b/t/t7810-grep.sh
@@ -99,6 +99,28 @@ do
                test_cmp expected actual
        '
 
+       test_expect_success "grep -w $L" '
+               {
+                       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-number -w -e mmap $H >actual &&
+               test_cmp expected actual
+       '
+
+       test_expect_success "grep -w $L" '
+               {
+                       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-number -w -e mmap $H >actual &&
+               test_cmp expected actual
+       '
+
        test_expect_success "grep -w $L" '
                {
                        echo ${HC}file:1:foo mmap bar
-- 
2.17.0

Reply via email to