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[PATCH] Split out "pull" from particular methods

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The method for deciding what to pull is useful separately from any of the
ways of actually fetching the objects.

So split out "pull" functionality from http-pull and rpull

Signed-off-by: Daniel Barkalow <barkalow@iabervon.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Daniel Barkalow 2005-04-30 16:53:56 -07:00 committed by Linus Torvalds
parent 5e7921e7c1
commit 4250a5e5b1
5 changed files with 114 additions and 154 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
Makefile
View File

@ -86,9 +86,9 @@ git-unpack-file: unpack-file.c
git-export: export.c
git-diff-cache: diff-cache.c
git-convert-cache: convert-cache.c
git-http-pull: http-pull.c
git-http-pull: http-pull.c pull.c
git-rpush: rsh.c
git-rpull: rsh.c
git-rpull: rsh.c pull.c
git-rev-list: rev-list.c
git-mktag: mktag.c
git-diff-tree-helper: diff-tree-helper.c

80
http-pull.c
View File

@ -7,6 +7,8 @@
#include <errno.h>
#include <stdio.h>
#include "pull.h"
#include <curl/curl.h>
#include <curl/easy.h>
@ -14,10 +16,6 @@ static CURL *curl;
static char *base;
static int tree = 0;
static int commits = 0;
static int all = 0;
static SHA_CTX c;
static z_stream stream;
@ -47,7 +45,7 @@ static size_t fwrite_sha1_file(void *ptr, size_t eltsize, size_t nmemb,
return size;
}
static int fetch(unsigned char *sha1)
int fetch(unsigned char *sha1)
{
char *hex = sha1_to_hex(sha1);
char *filename = sha1_file_name(sha1);
@ -105,77 +103,21 @@ static int fetch(unsigned char *sha1)
return 0;
}
static int process_tree(unsigned char *sha1)
{
struct tree *tree = lookup_tree(sha1);
struct tree_entry_list *entries;
if (parse_tree(tree))
return -1;
for (entries = tree->entries; entries; entries = entries->next) {
if (fetch(entries->item.tree->object.sha1))
return -1;
if (entries->directory) {
if (process_tree(entries->item.tree->object.sha1))
return -1;
}
}
return 0;
}
static int process_commit(unsigned char *sha1)
{
struct commit *obj = lookup_commit(sha1);
if (fetch(sha1))
return -1;
if (parse_commit(obj))
return -1;
if (tree) {
if (fetch(obj->tree->object.sha1))
return -1;
if (process_tree(obj->tree->object.sha1))
return -1;
if (!all)
tree = 0;
}
if (commits) {
struct commit_list *parents = obj->parents;
for (; parents; parents = parents->next) {
if (has_sha1_file(parents->item->object.sha1))
continue;
if (fetch(parents->item->object.sha1)) {
/* The server might not have it, and
* we don't mind.
*/
continue;
}
if (process_commit(parents->item->object.sha1))
return -1;
}
}
return 0;
}
int main(int argc, char **argv)
{
char *commit_id;
char *url;
int arg = 1;
unsigned char sha1[20];
while (arg < argc && argv[arg][0] == '-') {
if (argv[arg][1] == 't') {
tree = 1;
get_tree = 1;
} else if (argv[arg][1] == 'c') {
commits = 1;
get_history = 1;
} else if (argv[arg][1] == 'a') {
all = 1;
tree = 1;
commits = 1;
get_all = 1;
get_tree = 1;
get_history = 1;
}
arg++;
}
@ -186,17 +128,13 @@ int main(int argc, char **argv)
commit_id = argv[arg];
url = argv[arg + 1];
get_sha1_hex(commit_id, sha1);
curl_global_init(CURL_GLOBAL_ALL);
curl = curl_easy_init();
base = url;
if (fetch(sha1))
return 1;
if (process_commit(sha1))
if (pull(commit_id))
return 1;
curl_global_cleanup();

77
pull.c Normal file
View File

@ -0,0 +1,77 @@
#include "pull.h"
#include "cache.h"
#include "commit.h"
#include "tree.h"
int get_tree = 0;
int get_history = 0;
int get_all = 0;
static int process_tree(unsigned char *sha1)
{
struct tree *tree = lookup_tree(sha1);
struct tree_entry_list *entries;
if (parse_tree(tree))
return -1;
for (entries = tree->entries; entries; entries = entries->next) {
if (fetch(entries->item.tree->object.sha1))
return -1;
if (entries->directory) {
if (process_tree(entries->item.tree->object.sha1))
return -1;
}
}
return 0;
}
static int process_commit(unsigned char *sha1)
{
struct commit *obj = lookup_commit(sha1);
if (fetch(sha1))
return -1;
if (parse_commit(obj))
return -1;
if (get_tree) {
if (fetch(obj->tree->object.sha1))
return -1;
if (process_tree(obj->tree->object.sha1))
return -1;
if (!get_all)
get_tree = 0;
}
if (get_history) {
struct commit_list *parents = obj->parents;
for (; parents; parents = parents->next) {
if (has_sha1_file(parents->item->object.sha1))
continue;
if (fetch(parents->item->object.sha1)) {
/* The server might not have it, and
* we don't mind.
*/
continue;
}
if (process_commit(parents->item->object.sha1))
return -1;
}
}
return 0;
}
int pull(char *target)
{
int retval;
unsigned char sha1[20];
retval = get_sha1_hex(target, sha1);
if (retval)
return retval;
retval = fetch(sha1);
if (retval)
return retval;
return process_commit(sha1);
}

18
pull.h Normal file
View File

@ -0,0 +1,18 @@
#ifndef PULL_H
#define PULL_H
/** To be provided by the particular implementation. **/
extern int fetch(unsigned char *sha1);
/** Set to fetch the target tree. */
extern int get_tree;
/** Set to fetch the commit history. */
extern int get_history;
/** Set to fetch the trees in the commit history. **/
extern int get_all;
extern int pull(char *target);
#endif /* PULL_H */

89
rpull.c
View File

@ -7,15 +7,12 @@
#include <errno.h>
#include <stdio.h>
#include "rsh.h"
static int tree = 0;
static int commits = 0;
static int all = 0;
#include "pull.h"
static int fd_in;
static int fd_out;
static int fetch(unsigned char *sha1)
int fetch(unsigned char *sha1)
{
if (has_sha1_file(sha1))
return 0;
@ -23,87 +20,21 @@ static int fetch(unsigned char *sha1)
return write_sha1_from_fd(sha1, fd_in);
}
static int process_tree(unsigned char *sha1)
{
struct tree *tree = lookup_tree(sha1);
struct tree_entry_list *entries;
if (parse_tree(tree))
return -1;
for (entries = tree->entries; entries; entries = entries->next) {
/*
fprintf(stderr, "Tree %s ", sha1_to_hex(sha1));
fprintf(stderr, "needs %s\n",
sha1_to_hex(entries->item.tree->object.sha1));
*/
if (fetch(entries->item.tree->object.sha1)) {
return error("Missing item %s",
sha1_to_hex(entries->item.tree->object.sha1));
}
if (entries->directory) {
if (process_tree(entries->item.tree->object.sha1))
return -1;
}
}
return 0;
}
static int process_commit(unsigned char *sha1)
{
struct commit *obj = lookup_commit(sha1);
if (fetch(sha1)) {
return error("Fetching %s", sha1_to_hex(sha1));
}
if (parse_commit(obj))
return -1;
if (tree) {
if (fetch(obj->tree->object.sha1))
return -1;
if (process_tree(obj->tree->object.sha1))
return -1;
if (!all)
tree = 0;
}
if (commits) {
struct commit_list *parents = obj->parents;
for (; parents; parents = parents->next) {
if (has_sha1_file(parents->item->object.sha1))
continue;
if (fetch(parents->item->object.sha1)) {
/* The server might not have it, and
* we don't mind.
*/
error("Missing tree %s; continuing",
sha1_to_hex(parents->item->object.sha1));
continue;
}
if (process_commit(parents->item->object.sha1))
return -1;
}
}
return 0;
}
int main(int argc, char **argv)
{
char *commit_id;
char *url;
int arg = 1;
unsigned char sha1[20];
while (arg < argc && argv[arg][0] == '-') {
if (argv[arg][1] == 't') {
tree = 1;
get_tree = 1;
} else if (argv[arg][1] == 'c') {
commits = 1;
get_history = 1;
} else if (argv[arg][1] == 'a') {
all = 1;
tree = 1;
commits = 1;
get_all = 1;
get_tree = 1;
get_history = 1;
}
arg++;
}
@ -117,11 +48,7 @@ int main(int argc, char **argv)
if (setup_connection(&fd_in, &fd_out, "rpush", url, arg, argv + 1))
return 1;
get_sha1_hex(commit_id, sha1);
if (fetch(sha1))
return 1;
if (process_commit(sha1))
if (pull(commit_id))
return 1;
return 0;