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[PATCH] Do not call fetch() when we have it.

Browse source 
Currently pull() calls fetch() without checking whether we have
the wanted object but all of the existing fetch()
implementations perform this check and return success
themselves.  This patch moves the check to the caller.

I will be sending a trivial git-local-pull which depends on
this in the next message.

Signed-off-by: Junio C Hamano <junkio@cox.net>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Junio C Hamano 2005-05-01 21:07:40 -07:00 committed by Linus Torvalds
parent 90535218dd
commit ee4f439fea
3 changed files with 12 additions and 11 deletions
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4
http-pull.c
View file

@ -53,10 +53,6 @@ int fetch(unsigned char *sha1)
char *url;
char *posn;
if (has_sha1_file(sha1)) {
return 0;
}
local = open(filename, O_WRONLY | O_CREAT | O_EXCL, 0666);
if (local < 0)

17
pull.c
View file

@ -8,6 +8,13 @@ int get_tree = 0;
int get_history = 0;
int get_all = 0;
static int make_sure_we_have_it(unsigned char *sha1)
{
if (has_sha1_file(sha1))
return 0;
return fetch(sha1);
}
static int process_tree(unsigned char *sha1)
{
struct tree *tree = lookup_tree(sha1);
@ -17,7 +24,7 @@ static int process_tree(unsigned char *sha1)
return -1;
for (entries = tree->entries; entries; entries = entries->next) {
if (fetch(entries->item.tree->object.sha1))
if (make_sure_we_have_it(entries->item.tree->object.sha1))
return -1;
if (entries->directory) {
if (process_tree(entries->item.tree->object.sha1))
@ -31,14 +38,14 @@ static int process_commit(unsigned char *sha1)
{
struct commit *obj = lookup_commit(sha1);
if (fetch(sha1))
if (make_sure_we_have_it(sha1))
return -1;
if (parse_commit(obj))
return -1;
if (get_tree) {
if (fetch(obj->tree->object.sha1))
if (make_sure_we_have_it(obj->tree->object.sha1))
return -1;
if (process_tree(obj->tree->object.sha1))
return -1;
@ -50,7 +57,7 @@ static int process_commit(unsigned char *sha1)
for (; parents; parents = parents->next) {
if (has_sha1_file(parents->item->object.sha1))
continue;
if (fetch(parents->item->object.sha1)) {
if (make_sure_we_have_it(parents->item->object.sha1)) {
/* The server might not have it, and
* we don't mind.
*/
@ -70,7 +77,7 @@ int pull(char *target)
retval = get_sha1_hex(target, sha1);
if (retval)
return retval;
retval = fetch(sha1);
retval = make_sure_we_have_it(sha1);
if (retval)
return retval;
return process_commit(sha1);

2
rpull.c
View file

@ -14,8 +14,6 @@ static int fd_out;
int fetch(unsigned char *sha1)
{
if (has_sha1_file(sha1))
return 0;
write(fd_out, sha1, 20);
return write_sha1_from_fd(sha1, fd_in);
}