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pull: implement skeletal builtin pull 

For the purpose of rewriting git-pull.sh into a C builtin, implement a
skeletal builtin/pull.c that redirects to $GIT_EXEC_PATH/git-pull.sh if
the environment variable _GIT_USE_BUILTIN_PULL is not defined. This
allows us to fall back on the functional git-pull.sh when running the
test suite for tests that depend on a working git-pull implementation.

This redirection should be removed when all the features of git-pull.sh
have been re-implemented in builtin/pull.c.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Paul Tan <pyokagan@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Paul Tan 2015-06-14 16:41:51 +08:00 committed by Junio C Hamano
parent 85b343245b
commit 1e1ea69fa4
4 changed files with 36 additions and 0 deletions
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1
Makefile
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@ -877,6 +877,7 @@ BUILTIN_OBJS += builtin/pack-refs.o
BUILTIN_OBJS += builtin/patch-id.o
BUILTIN_OBJS += builtin/prune-packed.o
BUILTIN_OBJS += builtin/prune.o
BUILTIN_OBJS += builtin/pull.o
BUILTIN_OBJS += builtin/push.o
BUILTIN_OBJS += builtin/read-tree.o
BUILTIN_OBJS += builtin/receive-pack.o

1
builtin.h
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@ -98,6 +98,7 @@ extern int cmd_pack_redundant(int argc, const char **argv, const char *prefix);
extern int cmd_patch_id(int argc, const char **argv, const char *prefix);
extern int cmd_prune(int argc, const char **argv, const char *prefix);
extern int cmd_prune_packed(int argc, const char **argv, const char *prefix);
extern int cmd_pull(int argc, const char **argv, const char *prefix);
extern int cmd_push(int argc, const char **argv, const char *prefix);
extern int cmd_read_tree(int argc, const char **argv, const char *prefix);
extern int cmd_receive_pack(int argc, const char **argv, const char *prefix);

33
builtin/pull.c Normal file
View File

@ -0,0 +1,33 @@
/*
* Builtin "git pull"
*
* Based on git-pull.sh by Junio C Hamano
*
* Fetch one or more remote refs and merge it/them into the current HEAD.
*/
#include "cache.h"
#include "builtin.h"
#include "parse-options.h"
#include "exec_cmd.h"
static const char * const pull_usage[] = {
NULL
};
static struct option pull_options[] = {
OPT_END()
};
int cmd_pull(int argc, const char **argv, const char *prefix)
{
if (!getenv("_GIT_USE_BUILTIN_PULL")) {
const char *path = mkpath("%s/git-pull", git_exec_path());
if (sane_execvp(path, (char **)argv) < 0)
die_errno("could not exec %s", path);
}
argc = parse_options(argc, argv, prefix, pull_options, pull_usage, 0);
return 0;
}

1
git.c
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@ -445,6 +445,7 @@ static struct cmd_struct commands[] = {
{ "pickaxe", cmd_blame, RUN_SETUP },
{ "prune", cmd_prune, RUN_SETUP },
{ "prune-packed", cmd_prune_packed, RUN_SETUP },
{ "pull", cmd_pull, RUN_SETUP | NEED_WORK_TREE },
{ "push", cmd_push, RUN_SETUP },
{ "read-tree", cmd_read_tree, RUN_SETUP },
{ "receive-pack", cmd_receive_pack },