There are cases when a warning on ambiguous refs may go unnoticed
(e.g. git-log filling up the whole screen). There are also cases when
people want to catch ambiguity early (e.g. it happens deep in some
script). In either case, aborting the program would accomplish it.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 Documentation/config.txt |  3 ++-
 config.c                 |  5 ++++-
 sha1_name.c              | 10 ++++++++--
 3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/Documentation/config.txt b/Documentation/config.txt
index 2cd6bdd..4172f59 100644
--- a/Documentation/config.txt
+++ b/Documentation/config.txt
@@ -522,7 +522,8 @@ core.sharedRepository::
 
 core.warnAmbiguousRefs::
        If true, Git will warn you if the ref name you passed it is ambiguous
-       and might match multiple refs in the repository. True by default.
+       and might match multiple refs in the repository. If set to "fatal",
+       the program will abort on ambiguous refs. True by default.
 
 core.compression::
        An integer -1..9, indicating a default compression level.
diff --git a/config.c b/config.c
index 9ba40bc..79f1ea5 100644
--- a/config.c
+++ b/config.c
@@ -738,7 +738,10 @@ static int git_default_core_config(const char *var, const 
char *value)
        }
 
        if (!strcmp(var, "core.warnambiguousrefs")) {
-               warn_ambiguous_refs = git_config_bool(var, value);
+               if (!strcasecmp(value, "fatal"))
+                       warn_ambiguous_refs = 2;
+               else
+                       warn_ambiguous_refs = git_config_bool(var, value);
                return 0;
        }
 
diff --git a/sha1_name.c b/sha1_name.c
index 3acf221..a0f0ab9 100644
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -480,6 +480,8 @@ static int get_sha1_basic(const char *str, int len, 
unsigned char *sha1,
                                warning(warn_msg, len, str);
                                if (advice_object_name_warning)
                                        fprintf(stderr, "%s\n", 
_(object_name_msg));
+                               if (warn_ambiguous_refs > 1)
+                                       die(_("cannot continue with ambiguous 
refs"));
                        }
                        free(real_ref);
                }
@@ -537,8 +539,12 @@ static int get_sha1_basic(const char *str, int len, 
unsigned char *sha1,
 
        if (warn_ambiguous_refs && !(flags & GET_SHA1_QUIETLY) &&
            (refs_found > 1 ||
-            !get_short_sha1(str, len, tmp_sha1, GET_SHA1_QUIETLY)))
-               warning(warn_msg, len, str);
+            !get_short_sha1(str, len, tmp_sha1, GET_SHA1_QUIETLY))) {
+               if (warn_ambiguous_refs > 1)
+                       die(warn_msg, len, str);
+               else
+                       warning(warn_msg, len, str);
+       }
 
        if (reflog_len) {
                int nth, i;
-- 
2.8.0.rc0.210.gd302cd2

--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to