chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

1 files changed, 0 insertions, 199 deletions

diff --git a/third_party/git/shell.c b/third_party/git/shell.c
deleted file mode 100644
index cef7ffdc9e1d..000000000000
--- a/third_party/git/shell.c
+++ /dev/null
@@ -1,199 +0,0 @@
-#include "cache.h"
-#include "quote.h"
-#include "exec-cmd.h"
-#include "strbuf.h"
-#include "run-command.h"
-#include "alias.h"
-#include "prompt.h"
-
-#define COMMAND_DIR "git-shell-commands"
-#define HELP_COMMAND COMMAND_DIR "/help"
-#define NOLOGIN_COMMAND COMMAND_DIR "/no-interactive-login"
-
-static int do_generic_cmd(const char *me, char *arg)
-{
-	const char *my_argv[4];
-
-	setup_path();
-	if (!arg || !(arg = sq_dequote(arg)) || *arg == '-')
-		die("bad argument");
-	if (!skip_prefix(me, "git-", &me))
-		die("bad command");
-
-	my_argv[0] = me;
-	my_argv[1] = arg;
-	my_argv[2] = NULL;
-
-	return execv_git_cmd(my_argv);
-}
-
-static int is_valid_cmd_name(const char *cmd)
-{
-	/* Test command contains no . or / characters */
-	return cmd[strcspn(cmd, "./")] == '\0';
-}
-
-static char *make_cmd(const char *prog)
-{
-	return xstrfmt("%s/%s", COMMAND_DIR, prog);
-}
-
-static void cd_to_homedir(void)
-{
-	const char *home = getenv("HOME");
-	if (!home)
-		die("could not determine user's home directory; HOME is unset");
-	if (chdir(home) == -1)
-		die("could not chdir to user's home directory");
-}
-
-static void run_shell(void)
-{
-	int done = 0;
-	static const char *help_argv[] = { HELP_COMMAND, NULL };
-
-	if (!access(NOLOGIN_COMMAND, F_OK)) {
-		/* Interactive login disabled. */
-		const char *argv[] = { NOLOGIN_COMMAND, NULL };
-		int status;
-
-		status = run_command_v_opt(argv, 0);
-		if (status < 0)
-			exit(127);
-		exit(status);
-	}
-
-	/* Print help if enabled */
-	run_command_v_opt(help_argv, RUN_SILENT_EXEC_FAILURE);
-
-	do {
-		struct strbuf line = STRBUF_INIT;
-		const char *prog;
-		char *full_cmd;
-		char *rawargs;
-		char *split_args;
-		const char **argv;
-		int code;
-		int count;
-
-		fprintf(stderr, "git> ");
-		if (git_read_line_interactively(&line) == EOF) {
-			fprintf(stderr, "\n");
-			strbuf_release(&line);
-			break;
-		}
-		rawargs = strbuf_detach(&line, NULL);
-		split_args = xstrdup(rawargs);
-		count = split_cmdline(split_args, &argv);
-		if (count < 0) {
-			fprintf(stderr, "invalid command format '%s': %s\n", rawargs,
-				split_cmdline_strerror(count));
-			free(split_args);
-			free(rawargs);
-			continue;
-		}
-
-		prog = argv[0];
-		if (!strcmp(prog, "")) {
-		} else if (!strcmp(prog, "quit") || !strcmp(prog, "logout") ||
-			   !strcmp(prog, "exit") || !strcmp(prog, "bye")) {
-			done = 1;
-		} else if (is_valid_cmd_name(prog)) {
-			full_cmd = make_cmd(prog);
-			argv[0] = full_cmd;
-			code = run_command_v_opt(argv, RUN_SILENT_EXEC_FAILURE);
-			if (code == -1 && errno == ENOENT) {
-				fprintf(stderr, "unrecognized command '%s'\n", prog);
-			}
-			free(full_cmd);
-		} else {
-			fprintf(stderr, "invalid command format '%s'\n", prog);
-		}
-
-		free(argv);
-		free(rawargs);
-	} while (!done);
-}
-
-static struct commands {
-	const char *name;
-	int (*exec)(const char *me, char *arg);
-} cmd_list[] = {
-	{ "git-receive-pack", do_generic_cmd },
-	{ "git-upload-pack", do_generic_cmd },
-	{ "git-upload-archive", do_generic_cmd },
-	{ NULL },
-};
-
-int cmd_main(int argc, const char **argv)
-{
-	char *prog;
-	const char **user_argv;
-	struct commands *cmd;
-	int count;
-
-	/*
-	 * Special hack to pretend to be a CVS server
-	 */
-	if (argc == 2 && !strcmp(argv[1], "cvs server")) {
-		argv--;
-	} else if (argc == 1) {
-		/* Allow the user to run an interactive shell */
-		cd_to_homedir();
-		if (access(COMMAND_DIR, R_OK | X_OK) == -1) {
-			die("Interactive git shell is not enabled.\n"
-			    "hint: ~/" COMMAND_DIR " should exist "
-			    "and have read and execute access.");
-		}
-		run_shell();
-		exit(0);
-	} else if (argc != 3 || strcmp(argv[1], "-c")) {
-		/*
-		 * We do not accept any other modes except "-c" followed by
-		 * "cmd arg", where "cmd" is a very limited subset of git
-		 * commands or a command in the COMMAND_DIR
-		 */
-		die("Run with no arguments or with -c cmd");
-	}
-
-	prog = xstrdup(argv[2]);
-	if (!strncmp(prog, "git", 3) && isspace(prog[3]))
-		/* Accept "git foo" as if the caller said "git-foo". */
-		prog[3] = '-';
-
-	for (cmd = cmd_list ; cmd->name ; cmd++) {
-		int len = strlen(cmd->name);
-		char *arg;
-		if (strncmp(cmd->name, prog, len))
-			continue;
-		arg = NULL;
-		switch (prog[len]) {
-		case '\0':
-			arg = NULL;
-			break;
-		case ' ':
-			arg = prog + len + 1;
-			break;
-		default:
-			continue;
-		}
-		exit(cmd->exec(cmd->name, arg));
-	}
-
-	cd_to_homedir();
-	count = split_cmdline(prog, &user_argv);
-	if (count >= 0) {
-		if (is_valid_cmd_name(user_argv[0])) {
-			prog = make_cmd(user_argv[0]);
-			user_argv[0] = prog;
-			execv(user_argv[0], (char *const *) user_argv);
-		}
-		free(prog);
-		free(user_argv);
-		die("unrecognized command '%s'", argv[2]);
-	} else {
-		free(prog);
-		die("invalid command format '%s': %s", argv[2],
-		    split_cmdline_strerror(count));
-	}
-}