[PATCH] Split out "pull" from particular methods

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>

1 files changed, 9 insertions, 71 deletions

diff --git a/http-pull.c b/http-pull.c
index 192dcc370..d877c4abe 100644
--- a/http-pull.c
+++ b/http-pull.c
@@ -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();