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Allow zero-sized files to be checked in. 

The kernel may not want it, but others probably do.

Noted (again) by Junio Hamano.
maint
Linus Torvalds 2005-04-11 18:02:00 -07:00
parent 771364af0e
commit 3607c27f5f
1 changed files with 8 additions and 4 deletions
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12
update-cache.c
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@ -17,12 +17,16 @@ static int allow_add = 0, allow_remove = 0;
static int index_fd(const char *path, int namelen, struct cache_entry *ce, int fd, struct stat *st)
{
z_stream stream;
int max_out_bytes = namelen + st->st_size + 200;
unsigned long size = st->st_size;
int max_out_bytes = namelen + size + 200;
void *out = malloc(max_out_bytes);
void *metadata = malloc(namelen + 200);
void *in = mmap(NULL, st->st_size, PROT_READ, MAP_PRIVATE, fd, 0);
void *in;
SHA_CTX c;

in = "";
if (size)
in = mmap(NULL, size, PROT_READ, MAP_PRIVATE, fd, 0);
close(fd);
if (!out || (int)(long)in == -1)
return -1;
@ -34,7 +38,7 @@ static int index_fd(const char *path, int namelen, struct cache_entry *ce, int f
* ASCII size + nul byte
*/
stream.next_in = metadata;
stream.avail_in = 1+sprintf(metadata, "blob %lu", (unsigned long) st->st_size);
stream.avail_in = 1+sprintf(metadata, "blob %lu", size);
stream.next_out = out;
stream.avail_out = max_out_bytes;
while (deflate(&stream, 0) == Z_OK)
@ -44,7 +48,7 @@ static int index_fd(const char *path, int namelen, struct cache_entry *ce, int f
* File content
*/
stream.next_in = in;
stream.avail_in = st->st_size;
stream.avail_in = size;
while (deflate(&stream, Z_FINISH) == Z_OK)
/*nothing */;