mirror of
https://github.com/git-for-windows/git.git
synced 2026-06-27 00:58:30 -05:00
9759608622
The Git project is not exactly the easiest project to get started in: it's written in C and POSIX shell, with bits of Perl, Rust and other languages sprinkled into it. On top of that, the project has grown somewhat organically over time, making the codebase hard to navigate. These are problems that we're aware of, and there have been and still are efforts to clean up some of the technical debt that is natural to exist an a project that is more than 20 years old. Furthermore, we provide resources to newcomers that help them out like our coding guidelines, code of conduct or "MyFirstContribution.adoc". But there is a rather practical problem: finding your way around in our project's tree is not easy. Doing a directory listing in the top-level directory will present you with more than 550 files, which makes it extremely hard for a newcomer to figure out what files they are even supposed to look at. This makes the onboarding experience somewhat harder than it really needs to be. This isn't only a problem for newcomers though, as I myself struggle to find the files I am looking for because of the sheer number of files. Besides the problem of discoverability it also creates a problem of structure. It is not obvious at all which files are part of "libgit.a" and which files are only linked into our final executables. So while we have this split in our build systems, that split is not evident at all in our tree. Introduce a new "lib/" directory and move all of our sources for "libgit.a" into it to fix these issues. It makes the split we have evident and reduces the number of files in our top-level tree from 550 files to ~80 files. This is still a lot of files, but it's significantly easier to navigate already. Furthermore, we can further iterate after this step and think about introducing a better structure for remaining files, as well. Signed-off-by: Patrick Steinhardt <ps@pks.im> Signed-off-by: Junio C Hamano <gitster@pobox.com>
100 lines
2.6 KiB
C
100 lines
2.6 KiB
C
#define USE_THE_REPOSITORY_VARIABLE
|
|
|
|
#include "git-compat-util.h"
|
|
#include "config.h"
|
|
#include "environment.h"
|
|
#include "protocol.h"
|
|
#include "trace2.h"
|
|
|
|
static enum protocol_version parse_protocol_version(const char *value)
|
|
{
|
|
if (!strcmp(value, "0"))
|
|
return protocol_v0;
|
|
else if (!strcmp(value, "1"))
|
|
return protocol_v1;
|
|
else if (!strcmp(value, "2"))
|
|
return protocol_v2;
|
|
else
|
|
return protocol_unknown_version;
|
|
}
|
|
|
|
enum protocol_version get_protocol_version_config(void)
|
|
{
|
|
const char *value;
|
|
const char *git_test_k = "GIT_TEST_PROTOCOL_VERSION";
|
|
const char *git_test_v;
|
|
|
|
if (!repo_config_get_string_tmp(the_repository, "protocol.version", &value)) {
|
|
enum protocol_version version = parse_protocol_version(value);
|
|
|
|
if (version == protocol_unknown_version)
|
|
die("unknown value for config 'protocol.version': %s",
|
|
value);
|
|
|
|
return version;
|
|
}
|
|
|
|
git_test_v = getenv(git_test_k);
|
|
if (git_test_v && *git_test_v) {
|
|
enum protocol_version env = parse_protocol_version(git_test_v);
|
|
|
|
if (env == protocol_unknown_version)
|
|
die("unknown value for %s: %s", git_test_k, git_test_v);
|
|
return env;
|
|
}
|
|
|
|
return protocol_v2;
|
|
}
|
|
|
|
enum protocol_version determine_protocol_version_server(void)
|
|
{
|
|
const char *git_protocol = getenv(GIT_PROTOCOL_ENVIRONMENT);
|
|
enum protocol_version version = protocol_v0;
|
|
|
|
/*
|
|
* Determine which protocol version the client has requested. Since
|
|
* multiple 'version' keys can be sent by the client, indicating that
|
|
* the client is okay to speak any of them, select the greatest version
|
|
* that the client has requested. This is due to the assumption that
|
|
* the most recent protocol version will be the most state-of-the-art.
|
|
*/
|
|
if (git_protocol) {
|
|
struct string_list list = STRING_LIST_INIT_DUP;
|
|
const struct string_list_item *item;
|
|
string_list_split(&list, git_protocol, ":", -1);
|
|
|
|
for_each_string_list_item(item, &list) {
|
|
const char *value;
|
|
enum protocol_version v;
|
|
|
|
if (skip_prefix(item->string, "version=", &value)) {
|
|
v = parse_protocol_version(value);
|
|
if (v > version)
|
|
version = v;
|
|
}
|
|
}
|
|
|
|
string_list_clear(&list, 0);
|
|
}
|
|
|
|
trace2_data_intmax("transfer", NULL, "negotiated-version", version);
|
|
|
|
return version;
|
|
}
|
|
|
|
enum protocol_version determine_protocol_version_client(const char *server_response)
|
|
{
|
|
enum protocol_version version = protocol_v0;
|
|
|
|
if (skip_prefix(server_response, "version ", &server_response)) {
|
|
version = parse_protocol_version(server_response);
|
|
|
|
if (version == protocol_unknown_version)
|
|
die("server is speaking an unknown protocol");
|
|
if (version == protocol_v0)
|
|
die("protocol error: server explicitly said version 0");
|
|
}
|
|
|
|
return version;
|
|
}
|