merge(3p/git): Merge git subtree at v2.29.2 r/1890

This also bumps the stable nixpkgs to 20.09 as of 2020-11-21, because
there is some breakage in the git build related to the netrc
credentials helper which someone has taken care of in nixpkgs.

The stable channel is not used for anything other than git, so this
should be fine.

Change-Id: I3575a19dab09e1e9556cf8231d717de9890484fb

1 files changed, 8 insertions, 0 deletions

diff --git a/third_party/git/url.h b/third_party/git/url.h
index 00b7d58c33..2a27c34277 100644
--- a/third_party/git/url.h
+++ b/third_party/git/url.h
@@ -7,6 +7,14 @@ int is_url(const char *url);
 int is_urlschemechar(int first_flag, int ch);
 char *url_decode(const char *url);
 char *url_decode_mem(const char *url, int len);
+
+/*
+ * Similar to the url_decode_{,mem} methods above, but doesn't assume there
+ * is a scheme followed by a : at the start of the string. Instead, %-sequences
+ * before any : are also parsed.
+ */
+char *url_percent_decode(const char *encoded);
+
 char *url_decode_parameter_name(const char **query);
 char *url_decode_parameter_value(const char **query);