"**" can match slashes, not like "*". "ab**ef" should be able to match
"ab/cd/ef", or "ab/c/d/ef" and so on. Turn off the EXC_FLAG_NODIR in
this case otherwise the pattern is only checked against the base
name. This behavior is in sync with rsync.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 Documentation/gitignore.txt        | 10 +++++-----
 attr.c                             |  2 +-
 dir.c                              |  2 +-
 t/t0003-attributes.sh              | 16 ++++++++++++++++
 t/t3001-ls-files-others-exclude.sh | 10 ++++++++++
 5 files changed, 33 insertions(+), 7 deletions(-)

diff --git a/Documentation/gitignore.txt b/Documentation/gitignore.txt
index eb81d31..4dfe8bd 100644
--- a/Documentation/gitignore.txt
+++ b/Documentation/gitignore.txt
@@ -81,11 +81,11 @@ PATTERN FORMAT
    regular file or a symbolic link `foo` (this is consistent
    with the way how pathspec works in general in git).
 
- - If the pattern does not contain a slash '/', git treats it as
-   a shell glob pattern and checks for a match against the
-   pathname relative to the location of the `.gitignore` file
-   (relative to the toplevel of the work tree if not from a
-   `.gitignore` file).
+ - If the pattern does not contain a slash '/' nor '**', git
+   treats it as a shell glob pattern and checks for a match
+   against the pathname relative to the location of the
+   `.gitignore` file (relative to the toplevel of the work tree
+   if not from a `.gitignore` file).
 
  - Otherwise, git treats the pattern as a shell glob suitable
    for consumption by fnmatch(3) with the FNM_PATHNAME flag:
diff --git a/attr.c b/attr.c
index 3fde9fa..634b39c 100644
--- a/attr.c
+++ b/attr.c
@@ -253,7 +253,7 @@ static struct match_attr *parse_attr_line(const char *line, 
const char *src,
                res->pat.pattern = p;
                res->pat.patternlen = strlen(p);
                res->pat.nowildcardlen = simple_length(p);
-               if (!strchr(p, '/'))
+               if (!strchr(p, '/') && !strstr(p, "**"))
                        res->pat.flags |= EXC_FLAG_NODIR;
                if (*p == '*' && no_wildcard(p+1))
                        res->pat.flags |= EXC_FLAG_ENDSWITH;
diff --git a/dir.c b/dir.c
index fd49336..6a5de98 100644
--- a/dir.c
+++ b/dir.c
@@ -340,7 +340,7 @@ void add_exclude(const char *string, const char *base,
        x->base = base;
        x->baselen = baselen;
        x->flags = flags;
-       if (!strchr(string, '/'))
+       if (!strchr(string, '/') && !strstr(string, "**"))
                x->flags |= EXC_FLAG_NODIR;
        x->nowildcardlen = simple_length(string);
        if (*string == '*' && no_wildcard(string+1))
diff --git a/t/t0003-attributes.sh b/t/t0003-attributes.sh
index 6c3c554..9b534a0 100755
--- a/t/t0003-attributes.sh
+++ b/t/t0003-attributes.sh
@@ -249,4 +249,20 @@ EOF
        test_line_count = 0 err
 '
 
+test_expect_success '"**" with no slashes test' '
+       echo "a**f foo=bar" >.gitattributes &&
+       cat <<\EOF >expect &&
+f: foo: unspecified
+a/f: foo: bar
+a/b/f: foo: bar
+a/b/c/f: foo: bar
+EOF
+       git check-attr foo -- "f" >actual 2>err &&
+       git check-attr foo -- "a/f" >>actual 2>>err &&
+       git check-attr foo -- "a/b/f" >>actual 2>>err &&
+       git check-attr foo -- "a/b/c/f" >>actual 2>>err &&
+       test_cmp expect actual &&
+       test_line_count = 0 err
+'
+
 test_done
diff --git a/t/t3001-ls-files-others-exclude.sh 
b/t/t3001-ls-files-others-exclude.sh
index 67c8bcf..6a5a4ab 100755
--- a/t/t3001-ls-files-others-exclude.sh
+++ b/t/t3001-ls-files-others-exclude.sh
@@ -225,4 +225,14 @@ EOF
        test_cmp expect actual
 '
 
+
+test_expect_success 'ls-files with "**" patterns and no slashes' '
+       cat <<\EOF >expect &&
+one/a.1
+one/two/a.1
+EOF
+       git ls-files -o -i --exclude "one**a.1" >actual
+       test_cmp expect actual
+'
+
 test_done
-- 
1.7.12.1.405.gb727dc9

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