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, 250 deletions

diff --git a/third_party/git/pager.c b/third_party/git/pager.c
deleted file mode 100644
index ee435de675..0000000000
--- a/third_party/git/pager.c
+++ /dev/null
@@ -1,250 +0,0 @@
-#include "cache.h"
-#include "config.h"
-#include "run-command.h"
-#include "sigchain.h"
-#include "alias.h"
-
-#ifndef DEFAULT_PAGER
-#define DEFAULT_PAGER "less"
-#endif
-
-static struct child_process pager_process = CHILD_PROCESS_INIT;
-static const char *pager_program;
-
-static void wait_for_pager(int in_signal)
-{
-	if (!in_signal) {
-		fflush(stdout);
-		fflush(stderr);
-	}
-	/* signal EOF to pager */
-	close(1);
-	close(2);
-	if (in_signal)
-		finish_command_in_signal(&pager_process);
-	else
-		finish_command(&pager_process);
-}
-
-static void wait_for_pager_atexit(void)
-{
-	wait_for_pager(0);
-}
-
-static void wait_for_pager_signal(int signo)
-{
-	wait_for_pager(1);
-	sigchain_pop(signo);
-	raise(signo);
-}
-
-static int core_pager_config(const char *var, const char *value, void *data)
-{
-	if (!strcmp(var, "core.pager"))
-		return git_config_string(&pager_program, var, value);
-	return 0;
-}
-
-const char *git_pager(int stdout_is_tty)
-{
-	const char *pager;
-
-	if (!stdout_is_tty)
-		return NULL;
-
-	pager = getenv("GIT_PAGER");
-	if (!pager) {
-		if (!pager_program)
-			read_early_config(core_pager_config, NULL);
-		pager = pager_program;
-	}
-	if (!pager)
-		pager = getenv("PAGER");
-	if (!pager)
-		pager = DEFAULT_PAGER;
-	if (!*pager || !strcmp(pager, "cat"))
-		pager = NULL;
-
-	return pager;
-}
-
-static void setup_pager_env(struct strvec *env)
-{
-	const char **argv;
-	int i;
-	char *pager_env = xstrdup(PAGER_ENV);
-	int n = split_cmdline(pager_env, &argv);
-
-	if (n < 0)
-		die("malformed build-time PAGER_ENV: %s",
-			split_cmdline_strerror(n));
-
-	for (i = 0; i < n; i++) {
-		char *cp = strchr(argv[i], '=');
-
-		if (!cp)
-			die("malformed build-time PAGER_ENV");
-
-		*cp = '\0';
-		if (!getenv(argv[i])) {
-			*cp = '=';
-			strvec_push(env, argv[i]);
-		}
-	}
-	free(pager_env);
-	free(argv);
-}
-
-void prepare_pager_args(struct child_process *pager_process, const char *pager)
-{
-	strvec_push(&pager_process->args, pager);
-	pager_process->use_shell = 1;
-	setup_pager_env(&pager_process->env_array);
-	pager_process->trace2_child_class = "pager";
-}
-
-void setup_pager(void)
-{
-	const char *pager = git_pager(isatty(1));
-
-	if (!pager)
-		return;
-
-	/*
-	 * After we redirect standard output, we won't be able to use an ioctl
-	 * to get the terminal size. Let's grab it now, and then set $COLUMNS
-	 * to communicate it to any sub-processes.
-	 */
-	{
-		char buf[64];
-		xsnprintf(buf, sizeof(buf), "%d", term_columns());
-		setenv("COLUMNS", buf, 0);
-	}
-
-	setenv("GIT_PAGER_IN_USE", "true", 1);
-
-	/* spawn the pager */
-	prepare_pager_args(&pager_process, pager);
-	pager_process.in = -1;
-	strvec_push(&pager_process.env_array, "GIT_PAGER_IN_USE");
-	if (start_command(&pager_process))
-		return;
-
-	/* original process continues, but writes to the pipe */
-	dup2(pager_process.in, 1);
-	if (isatty(2))
-		dup2(pager_process.in, 2);
-	close(pager_process.in);
-
-	/* this makes sure that the parent terminates after the pager */
-	sigchain_push_common(wait_for_pager_signal);
-	atexit(wait_for_pager_atexit);
-}
-
-int pager_in_use(void)
-{
-	return git_env_bool("GIT_PAGER_IN_USE", 0);
-}
-
-/*
- * Return cached value (if set) or $COLUMNS environment variable (if
- * set and positive) or ioctl(1, TIOCGWINSZ).ws_col (if positive),
- * and default to 80 if all else fails.
- */
-int term_columns(void)
-{
-	static int term_columns_at_startup;
-
-	char *col_string;
-	int n_cols;
-
-	if (term_columns_at_startup)
-		return term_columns_at_startup;
-
-	term_columns_at_startup = 80;
-
-	col_string = getenv("COLUMNS");
-	if (col_string && (n_cols = atoi(col_string)) > 0)
-		term_columns_at_startup = n_cols;
-#ifdef TIOCGWINSZ
-	else {
-		struct winsize ws;
-		if (!ioctl(1, TIOCGWINSZ, &ws) && ws.ws_col)
-			term_columns_at_startup = ws.ws_col;
-	}
-#endif
-
-	return term_columns_at_startup;
-}
-
-/*
- * Clear the entire line, leave cursor in first column.
- */
-void term_clear_line(void)
-{
-	if (is_terminal_dumb())
-		/*
-		 * Fall back to print a terminal width worth of space
-		 * characters (hoping that the terminal is still as wide
-		 * as it was upon the first call to term_columns()).
-		 */
-		fprintf(stderr, "\r%*s\r", term_columns(), "");
-	else
-		/*
-		 * On non-dumb terminals use an escape sequence to clear
-		 * the whole line, no matter how wide the terminal.
-		 */
-		fputs("\r\033[K", stderr);
-}
-
-/*
- * How many columns do we need to show this number in decimal?
- */
-int decimal_width(uintmax_t number)
-{
-	int width;
-
-	for (width = 1; number >= 10; width++)
-		number /= 10;
-	return width;
-}
-
-struct pager_command_config_data {
-	const char *cmd;
-	int want;
-	char *value;
-};
-
-static int pager_command_config(const char *var, const char *value, void *vdata)
-{
-	struct pager_command_config_data *data = vdata;
-	const char *cmd;
-
-	if (skip_prefix(var, "pager.", &cmd) && !strcmp(cmd, data->cmd)) {
-		int b = git_parse_maybe_bool(value);
-		if (b >= 0)
-			data->want = b;
-		else {
-			data->want = 1;
-			data->value = xstrdup(value);
-		}
-	}
-
-	return 0;
-}
-
-/* returns 0 for "no pager", 1 for "use pager", and -1 for "not specified" */
-int check_pager_config(const char *cmd)
-{
-	struct pager_command_config_data data;
-
-	data.cmd = cmd;
-	data.want = -1;
-	data.value = NULL;
-
-	read_early_config(pager_command_config, &data);
-
-	if (data.value)
-		pager_program = data.value;
-	return data.want;
-}