We already take care to parse a capability like "foo=bar"
properly, but the code does not provide a good way of
actually finding out what is on the right-hand side of the
"=".
Signed-off-by: Jeff King <peff@xxxxxxxx>
---
cache.h | 2 ++
connect.c | 32 ++++++++++++++++++++++++++++++++
2 files changed, 34 insertions(+)
diff --git a/cache.h b/cache.h
index 06413e1..3811c66 100644
--- a/cache.h
+++ b/cache.h
@@ -1030,7 +1030,9 @@ struct extra_have_objects {
};
extern struct ref **get_remote_heads(int in, struct ref **list, unsigned int flags, struct extra_have_objects *);
extern int server_supports(const char *feature);
+extern char *server_feature_value(const char *feature);
extern const char *parse_feature_request(const char *features, const char *feature);
+extern char *parse_feature_request_value(const char *features, const char *feature);
extern struct packed_git *parse_pack_index(unsigned char *sha1, const char *idx_path);
diff --git a/connect.c b/connect.c
index 912cdde..6bd2531 100644
--- a/connect.c
+++ b/connect.c
@@ -104,6 +104,11 @@ int server_supports(const char *feature)
return !!parse_feature_request(server_capabilities, feature);
}
+char *server_feature_value(const char *feature)
+{
+ return parse_feature_request_value(server_capabilities, feature);
+}
+
const char *parse_feature_request(const char *feature_list, const char *feature)
{
int len;
@@ -124,6 +129,33 @@ const char *parse_feature_request(const char *feature_list, const char *feature)
return NULL;
}
+/*
+ * Parse features of the form "feature=value". Returns NULL if the feature
+ * does not exist, the empty string if it exists but does not have an "=", or
+ * the content to the right of the "=" until the first space (or end of
+ * string). The cannot contain literal spaces; double-quoting or similar
+ * schemes would break compatibility, since older versions of git treat the
+ * space as a hard-delimiter without any context.
+ *
+ * The return value (if non-NULL) is newly allocated on the heap and belongs to
+ * the caller.
+ */
+char *parse_feature_request_value(const char *feature_list, const char *feature)
+{
+ const char *start = parse_feature_request(feature_list, feature);
+ const char *end;
+
+ if (!start || prefixcmp(start, feature))
+ return NULL;
+ start += strlen(feature);
+
+ if (*start == '=')
+ start++;
+ end = strchrnul(start, ' ');
+
+ return xmemdupz(start, end - start);
+}
+
enum protocol {
PROTO_LOCAL = 1,
PROTO_SSH,
--
1.7.12.rc2.4.g7f05cf9
--
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