Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 Documentation/glossary-content.txt |  4 ++++
 builtin/add.c                      |  2 +-
 builtin/diff.c                     |  2 +-
 dir.c                              | 15 ++++++++++++---
 pathspec.c                         | 11 ++++++++---
 pathspec.h                         |  4 +++-
 t/t6130-pathspec-noglob.sh         | 18 ++++++++++++++++++
 tree-diff.c                        |  2 +-
 tree-walk.c                        |  5 ++++-
 9 files changed, 52 insertions(+), 11 deletions(-)

diff --git a/Documentation/glossary-content.txt 
b/Documentation/glossary-content.txt
index eb7ba84..8b91aeb 100644
--- a/Documentation/glossary-content.txt
+++ b/Documentation/glossary-content.txt
@@ -323,6 +323,10 @@ top `/`;;
        The magic word `top` (mnemonic: `/`) makes the pattern match
        from the root of the working tree, even when you are running
        the command from inside a subdirectory.
+
+literal;;
+       Wildcards in the pattern such as `*` or `?` are treated
+       as literal characters.
 --
 +
 Currently only the slash `/` is recognized as the "magic signature",
diff --git a/builtin/add.c b/builtin/add.c
index aa0709e..8bc6b45 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -426,7 +426,7 @@ int cmd_add(int argc, const char **argv, const char *prefix)
                /*
                 * file_exists() assumes exact match
                 */
-               GUARD_PATHSPEC(&pathspec, PATHSPEC_FROMTOP);
+               GUARD_PATHSPEC(&pathspec, PATHSPEC_FROMTOP | PATHSPEC_LITERAL);
 
                for (i = 0; i < pathspec.nr; i++) {
                        const char *path = pathspec.items[i].match;
diff --git a/builtin/diff.c b/builtin/diff.c
index 6b4e3f9..b78435f 100644
--- a/builtin/diff.c
+++ b/builtin/diff.c
@@ -372,7 +372,7 @@ int cmd_diff(int argc, const char **argv, const char 
*prefix)
        }
        if (rev.prune_data.nr) {
                /* builtin_diff_b_f() */
-               GUARD_PATHSPEC(&rev.prune_data, PATHSPEC_FROMTOP);
+               GUARD_PATHSPEC(&rev.prune_data, PATHSPEC_FROMTOP | 
PATHSPEC_LITERAL);
                if (!path)
                        path = rev.prune_data.items[0].match;
                paths += rev.prune_data.nr;
diff --git a/dir.c b/dir.c
index 4f5a2c9..8d9ed24 100644
--- a/dir.c
+++ b/dir.c
@@ -65,7 +65,10 @@ static size_t common_prefix_len(const struct pathspec 
*pathspec)
        int n;
        size_t max = 0;
 
-       GUARD_PATHSPEC(pathspec, PATHSPEC_FROMTOP | PATHSPEC_MAXDEPTH);
+       GUARD_PATHSPEC(pathspec,
+                      PATHSPEC_FROMTOP |
+                      PATHSPEC_MAXDEPTH |
+                      PATHSPEC_LITERAL);
 
        for (n = 0; n < pathspec->nr; n++) {
                size_t i = 0, len = 0;
@@ -189,7 +192,10 @@ int match_pathspec_depth(const struct pathspec *ps,
 {
        int i, retval = 0;
 
-       GUARD_PATHSPEC(ps, PATHSPEC_FROMTOP | PATHSPEC_MAXDEPTH);
+       GUARD_PATHSPEC(ps,
+                      PATHSPEC_FROMTOP |
+                      PATHSPEC_MAXDEPTH |
+                      PATHSPEC_LITERAL);
 
        if (!ps->nr) {
                if (!ps->recursive ||
@@ -1338,7 +1344,10 @@ int read_directory(struct dir_struct *dir, const char 
*path, int len, const stru
         * Check out create_simplify()
         */
        if (pathspec)
-               GUARD_PATHSPEC(pathspec, PATHSPEC_FROMTOP | PATHSPEC_MAXDEPTH);
+               GUARD_PATHSPEC(pathspec,
+                              PATHSPEC_FROMTOP |
+                              PATHSPEC_MAXDEPTH |
+                              PATHSPEC_LITERAL);
 
        if (has_symlink_leading_path(path, len))
                return dir->nr;
diff --git a/pathspec.c b/pathspec.c
index 7b3dfc0..e57196d 100644
--- a/pathspec.c
+++ b/pathspec.c
@@ -70,6 +70,7 @@ static struct pathspec_magic {
        const char *name;
 } pathspec_magic[] = {
        { PATHSPEC_FROMTOP, '/', "top" },
+       { PATHSPEC_LITERAL,   0, "literal" },
 };
 
 /*
@@ -92,13 +93,15 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
                                const char *elt)
 {
        static int literal_global = -1;
-       unsigned magic = 0, short_magic = 0;
+       unsigned magic = 0, short_magic = 0, global_magic = 0;
        const char *copyfrom = elt, *long_magic_end = NULL;
        char *match;
        int i, pathspec_prefix = -1;
 
        if (literal_global < 0)
                literal_global = 
git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT, 0);
+       if (literal_global)
+               global_magic |= PATHSPEC_LITERAL;
 
        if (elt[0] != ':') {
                ; /* nothing to do */
@@ -163,6 +166,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
 
        magic |= short_magic;
        *p_short_magic = short_magic;
+       magic |= global_magic;
 
        if (pathspec_prefix >= 0 &&
            (prefixlen || (prefix && *prefix)))
@@ -235,7 +239,7 @@ static unsigned prefix_pathspec(struct pathspec_item *item,
                                     elt, ce_len, ce->name);
                }
 
-       if (literal_global)
+       if (magic & PATHSPEC_LITERAL)
                item->nowildcard_len = item->len;
        else {
                item->nowildcard_len = simple_length(item->match);
@@ -395,7 +399,8 @@ const char **get_pathspec(const char *prefix, const char 
**pathspec)
 {
        struct pathspec ps;
        parse_pathspec(&ps,
-                      PATHSPEC_ALL_MAGIC & ~PATHSPEC_FROMTOP,
+                      PATHSPEC_ALL_MAGIC &
+                      ~(PATHSPEC_FROMTOP | PATHSPEC_LITERAL),
                       PATHSPEC_PREFER_CWD,
                       prefix, pathspec);
        return ps.raw;
diff --git a/pathspec.h b/pathspec.h
index 8f339a5..d5db7d5 100644
--- a/pathspec.h
+++ b/pathspec.h
@@ -4,9 +4,11 @@
 /* Pathspec magic */
 #define PATHSPEC_FROMTOP       (1<<0)
 #define PATHSPEC_MAXDEPTH      (1<<1)
+#define PATHSPEC_LITERAL       (1<<2)
 #define PATHSPEC_ALL_MAGIC       \
        (PATHSPEC_FROMTOP       | \
-        PATHSPEC_MAXDEPTH)
+        PATHSPEC_MAXDEPTH      | \
+        PATHSPEC_LITERAL)
 
 #define PATHSPEC_ONESTAR 1     /* the pathspec pattern sastisfies GFNM_ONESTAR 
*/
 
diff --git a/t/t6130-pathspec-noglob.sh b/t/t6130-pathspec-noglob.sh
index 39ef619..49c148e 100755
--- a/t/t6130-pathspec-noglob.sh
+++ b/t/t6130-pathspec-noglob.sh
@@ -47,18 +47,36 @@ test_expect_success 'no-glob option matches literally 
(vanilla)' '
        test_cmp expect actual
 '
 
+test_expect_success 'no-glob option matches literally (vanilla)' '
+       echo vanilla >expect &&
+       git log --format=%s -- ":(literal)foo" >actual &&
+       test_cmp expect actual
+'
+
 test_expect_success 'no-glob option matches literally (star)' '
        echo star >expect &&
        git --literal-pathspecs log --format=%s -- "f*" >actual &&
        test_cmp expect actual
 '
 
+test_expect_success 'no-glob option matches literally (star)' '
+       echo star >expect &&
+       git log --format=%s -- ":(literal)f*" >actual &&
+       test_cmp expect actual
+'
+
 test_expect_success 'no-glob option matches literally (bracket)' '
        echo bracket >expect &&
        git --literal-pathspecs log --format=%s -- "f[o][o]" >actual &&
        test_cmp expect actual
 '
 
+test_expect_success 'no-glob option matches literally (bracket)' '
+       echo bracket >expect &&
+       git log --format=%s -- ":(literal)f[o][o]" >actual &&
+       test_cmp expect actual
+'
+
 test_expect_success 'no-glob environment variable works' '
        echo star >expect &&
        GIT_LITERAL_PATHSPECS=1 git log --format=%s -- "f*" >actual &&
diff --git a/tree-diff.c b/tree-diff.c
index 21a50d8..ccf9d7c 100644
--- a/tree-diff.c
+++ b/tree-diff.c
@@ -202,7 +202,7 @@ static void try_to_follow_renames(struct tree_desc *t1, 
struct tree_desc *t2, co
         * path. Magic that matches more than one path is not
         * supported.
         */
-       GUARD_PATHSPEC(&opt->pathspec, PATHSPEC_FROMTOP);
+       GUARD_PATHSPEC(&opt->pathspec, PATHSPEC_FROMTOP | PATHSPEC_LITERAL);
 #if 0
        /*
         * We should reject wildcards as well. Unfortunately we
diff --git a/tree-walk.c b/tree-walk.c
index 37b157e..676bd7f 100644
--- a/tree-walk.c
+++ b/tree-walk.c
@@ -636,7 +636,10 @@ enum interesting tree_entry_interesting(const struct 
name_entry *entry,
        enum interesting never_interesting = ps->has_wildcard ?
                entry_not_interesting : all_entries_not_interesting;
 
-       GUARD_PATHSPEC(ps, PATHSPEC_FROMTOP | PATHSPEC_MAXDEPTH);
+       GUARD_PATHSPEC(ps,
+                      PATHSPEC_FROMTOP |
+                      PATHSPEC_MAXDEPTH |
+                      PATHSPEC_LITERAL);
 
        if (!ps->nr) {
                if (!ps->recursive ||
-- 
1.8.0.rc0.19.g7bbb31d

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