dir: ignore trailing spaces in exclude patterns

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/Documentation/gitignore.txt b/Documentation/gitignore.txt
index f9719605123003c97bdf2999f912712536fa927a..aa776234e145f5f65a6f0137df5dc2c4a8e1c7ac 100644 (file)
--- a/Documentation/gitignore.txt
+++ b/Documentation/gitignore.txt
@@ -77,6 +77,9 @@ PATTERN FORMAT
    Put a backslash ("`\`") in front of the first hash for patterns
    that begin with a hash.
 
+ - Trailing spaces are ignored unless they are quoted with backlash
+   ("`\`").
+
  - An optional prefix "`!`" which negates the pattern; any
    matching file excluded by a previous pattern will become
    included again.  If a negated pattern matches, this will

diff --git a/dir.c b/dir.c
index 065491bb4bc5d4c16a6259b594ed18643d4d3ee7..f6743b36cdfba5d6225e72b7f2e3278e46dcc006 100644 (file)
--- a/dir.c
+++ b/dir.c
@@ -463,20 +463,23 @@ void clear_exclude_list(struct exclude_list *el)
        el->filebuf = NULL;
 }
 
-static void check_trailing_spaces(const char *fname, char *buf)
+static void trim_trailing_spaces(char *buf)
 {
-       int i, last_space = -1, len = strlen(buf);
+       int i, last_space = -1, nr_spaces, len = strlen(buf);
        for (i = 0; i < len; i++)
                if (buf[i] == '\\')
                        i++;
-               else if (buf[i] == ' ')
-                       last_space = i;
-               else
+               else if (buf[i] == ' ') {
+                       if (last_space == -1) {
+                               last_space = i;
+                               nr_spaces = 1;
+                       } else
+                               nr_spaces++;
+               } else
                        last_space = -1;
 
-       if (last_space == len - 1)
-               warning(_("%s: trailing spaces in '%s'. Please quote or remove them."),
-                       fname, buf);
+       if (last_space != -1 && last_space + nr_spaces == len)
+               buf[last_space] = '\0';
 }
 
 int add_excludes_from_file_to_list(const char *fname,
@@ -530,7 +533,7 @@ int add_excludes_from_file_to_list(const char *fname,
                if (buf[i] == '\n') {
                        if (entry != buf + i && entry[0] != '#') {
                                buf[i - (i && buf[i-1] == '\r')] = 0;
-                               check_trailing_spaces(fname, entry);
+                               trim_trailing_spaces(entry);
                                add_exclude(entry, base, baselen, el, lineno);
                        }
                        lineno++;

diff --git a/t/t0008-ignores.sh b/t/t0008-ignores.sh
index 9e1d64c6ac5ba2d652a7657aca4411da6d5a08aa..bbaf6b5e9edb4c8dc3e435952d261e72b3042f01 100755 (executable)
--- a/t/t0008-ignores.sh
+++ b/t/t0008-ignores.sh
@@ -779,18 +779,18 @@ test_expect_success PIPE 'streaming support for --stdin' '
 #
 # test whitespace handling
 
-test_expect_success 'trailing whitespace is warned' '
+test_expect_success 'trailing whitespace is ignored' '
        mkdir whitespace &&
        >whitespace/trailing &&
        >whitespace/untracked &&
        echo "whitespace/trailing   " >ignore &&
        cat >expect <<EOF &&
-whitespace/trailing
 whitespace/untracked
 EOF
+       : >err.expect &&
        git ls-files -o -X ignore whitespace >actual 2>err &&
-       grep "ignore:.*'\''whitespace/trailing   '\''" err &&
-       test_cmp expect actual
+       test_cmp expect actual &&
+       test_cmp err.expect err
 '
 
 test_expect_success 'quoting allows trailing whitespace' '