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-rw-r--r--builtin/merge.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/builtin/merge.c b/builtin/merge.c
index 9e4733d25f..1e9c898aec 100644
--- a/builtin/merge.c
+++ b/builtin/merge.c
@@ -503,7 +503,12 @@ static int git_merge_config(const char *k, const char *v, void *cb)
else if (!strcmp(k, "pull.octopus"))
return git_config_string(&pull_octopus, k, v);
else if (!strcmp(k, "merge.log") || !strcmp(k, "merge.summary")) {
- shortlog_len = git_config_bool(k, v) ? DEFAULT_MERGE_LOG_LEN : 0;
+ int is_bool;
+ shortlog_len = git_config_bool_or_int(k, v, &is_bool);
+ if (!is_bool && shortlog_len < 0)
+ return error("%s: negative length %s", k, v);
+ if (is_bool && shortlog_len)
+ shortlog_len = DEFAULT_MERGE_LOG_LEN;
return 0;
}
return git_diff_ui_config(k, v, cb);