This is in the core so that, if the alternates file has already been
read, the addition can be parsed and put into effect for the current
process.
Signed-off-by: Daniel Barkalow <barkalow@xxxxxxxxxxxx>
---
cache.h | 1 +
sha1_file.c | 12 ++++++++++++
2 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/cache.h b/cache.h
index 4a113b0..96dcb49 100644
--- a/cache.h
+++ b/cache.h
@@ -589,6 +589,7 @@ extern struct alternate_object_database {
char base[FLEX_ARRAY]; /* more */
} *alt_odb_list;
extern void prepare_alt_odb(void);
+extern void add_to_alternates_file(const char *reference);
struct pack_window {
struct pack_window *next;
diff --git a/sha1_file.c b/sha1_file.c
index 445a871..1aa3cef 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -379,6 +379,18 @@ static void read_info_alternates(const char * relative_base, int depth)
munmap(map, mapsz);
}
+void add_to_alternates_file(const char *reference)
+{
+ struct lock_file *lock = xcalloc(1, sizeof(struct lock_file));
+ int fd = hold_lock_file_for_append(lock, git_path("objects/info/alternates"), 1);
+ char *alt = mkpath("%s/objects\n", reference);
+ write_or_die(fd, alt, strlen(alt));
+ if (commit_lock_file(lock))
+ die("could not close alternates file");
+ if (alt_odb_tail)
+ link_alt_odb_entries(alt, alt + strlen(alt), '\n', NULL, 0);
+}
+
void prepare_alt_odb(void)
{
const char *alt;
--
1.5.4.3.610.gea6cd
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