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 | 19 +++++++++++++++++++
2 files changed, 20 insertions(+), 0 deletions(-)
diff --git a/cache.h b/cache.h
index bdefcc9..6aae174 100644
--- a/cache.h
+++ b/cache.h
@@ -587,6 +587,7 @@ 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..4ce4d9d 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -379,6 +379,25 @@ static void read_info_alternates(const char * relative_base, int depth)
munmap(map, mapsz);
}
+void add_to_alternates_file(const char *reference)
+{
+ char *file;
+ char *alt;
+ int fd;
+
+ file = mkpath("%s/objects/info/alternates", get_git_dir());
+ fd = open(file, O_CREAT | O_WRONLY | O_APPEND, 0666);
+ if (fd < 0)
+ die("failed to create %s", file);
+ alt = mkpath("%s/objects\n", reference);
+ write_or_die(fd, alt, strlen(alt));
+ if (close(fd))
+ die("could not close %s", file);
+ fprintf(stderr, "Wrote %s to %s\n", alt, file);
+ if (alt_odb_tail)
+ link_alt_odb_entries(alt, alt + strlen(alt), '\n', NULL, 0);
+}
+
void prepare_alt_odb(void)
{
const char *alt;
--
1.5.4.3.327.g614d7.dirty
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