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, 23 insertions, 3 deletions

diff --git a/third_party/git/notes.h b/third_party/git/notes.h
index 76337f2384..c1682c39a9 100644
--- a/third_party/git/notes.h
+++ b/third_party/git/notes.h
@@ -261,6 +261,26 @@ struct display_notes_opt {
 };
 
 /*
+ * Initialize a display_notes_opt to its default value.
+ */
+void init_display_notes(struct display_notes_opt *opt);
+
+/*
+ * This family of functions enables or disables the display of notes. In
+ * particular, 'enable_default_display_notes' will display the default notes,
+ * 'enable_ref_display_notes' will display the notes ref 'ref' and
+ * 'disable_display_notes' will disable notes, including those added by previous
+ * invocations of the 'enable_*_display_notes' functions.
+ *
+ * 'show_notes' is a pointer to a boolean which will be set to 1 if notes are
+ * displayed, else 0. It must not be NULL.
+ */
+void enable_default_display_notes(struct display_notes_opt *opt, int *show_notes);
+void enable_ref_display_notes(struct display_notes_opt *opt, int *show_notes,
+		const char *ref);
+void disable_display_notes(struct display_notes_opt *opt, int *show_notes);
+
+/*
  * Load the notes machinery for displaying several notes trees.
  *
  * If 'opt' is not NULL, then it specifies additional settings for the
@@ -272,16 +292,16 @@ struct display_notes_opt {
  * - extra_notes_refs may contain a list of globs (in the same style
  *   as notes.displayRef) where notes should be loaded from.
  */
-void init_display_notes(struct display_notes_opt *opt);
+void load_display_notes(struct display_notes_opt *opt);
 
 /*
  * Append notes for the given 'object_sha1' from all trees set up by
- * init_display_notes() to 'sb'.
+ * load_display_notes() to 'sb'.
  *
  * If 'raw' is false the note will be indented by 4 places and
  * a 'Notes (refname):' header added.
  *
- * You *must* call init_display_notes() before using this function.
+ * You *must* call load_display_notes() before using this function.
  */
 void format_display_notes(const struct object_id *object_oid,
 			  struct strbuf *sb, const char *output_encoding, int raw);