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, 369 deletions

diff --git a/third_party/git/builtin/mailsplit.c b/third_party/git/builtin/mailsplit.c
deleted file mode 100644
index 664400b816..0000000000
--- a/third_party/git/builtin/mailsplit.c
+++ /dev/null
@@ -1,369 +0,0 @@
-/*
- * Totally braindamaged mbox splitter program.
- *
- * It just splits a mbox into a list of files: "0001" "0002" ..
- * so you can process them further from there.
- */
-#include "cache.h"
-#include "builtin.h"
-#include "string-list.h"
-#include "strbuf.h"
-
-static const char git_mailsplit_usage[] =
-"git mailsplit [-d<prec>] [-f<n>] [-b] [--keep-cr] -o<directory> [(<mbox>|<Maildir>)...]";
-
-static int is_from_line(const char *line, int len)
-{
-	const char *colon;
-
-	if (len < 20 || memcmp("From ", line, 5))
-		return 0;
-
-	colon = line + len - 2;
-	line += 5;
-	for (;;) {
-		if (colon < line)
-			return 0;
-		if (*--colon == ':')
-			break;
-	}
-
-	if (!isdigit(colon[-4]) ||
-	    !isdigit(colon[-2]) ||
-	    !isdigit(colon[-1]) ||
-	    !isdigit(colon[ 1]) ||
-	    !isdigit(colon[ 2]))
-		return 0;
-
-	/* year */
-	if (strtol(colon+3, NULL, 10) <= 90)
-		return 0;
-
-	/* Ok, close enough */
-	return 1;
-}
-
-static struct strbuf buf = STRBUF_INIT;
-static int keep_cr;
-static int mboxrd;
-
-static int is_gtfrom(const struct strbuf *buf)
-{
-	size_t min = strlen(">From ");
-	size_t ngt;
-
-	if (buf->len < min)
-		return 0;
-
-	ngt = strspn(buf->buf, ">");
-	return ngt && starts_with(buf->buf + ngt, "From ");
-}
-
-/* Called with the first line (potentially partial)
- * already in buf[] -- normally that should begin with
- * the Unix "From " line.  Write it into the specified
- * file.
- */
-static int split_one(FILE *mbox, const char *name, int allow_bare)
-{
-	FILE *output;
-	int fd;
-	int status = 0;
-	int is_bare = !is_from_line(buf.buf, buf.len);
-
-	if (is_bare && !allow_bare) {
-		fprintf(stderr, "corrupt mailbox\n");
-		exit(1);
-	}
-	fd = open(name, O_WRONLY | O_CREAT | O_EXCL, 0666);
-	if (fd < 0)
-		die_errno("cannot open output file '%s'", name);
-	output = xfdopen(fd, "w");
-
-	/* Copy it out, while searching for a line that begins with
-	 * "From " and having something that looks like a date format.
-	 */
-	for (;;) {
-		if (!keep_cr && buf.len > 1 && buf.buf[buf.len-1] == '\n' &&
-			buf.buf[buf.len-2] == '\r') {
-			strbuf_setlen(&buf, buf.len-2);
-			strbuf_addch(&buf, '\n');
-		}
-
-		if (mboxrd && is_gtfrom(&buf))
-			strbuf_remove(&buf, 0, 1);
-
-		if (fwrite(buf.buf, 1, buf.len, output) != buf.len)
-			die_errno("cannot write output");
-
-		if (strbuf_getwholeline(&buf, mbox, '\n')) {
-			if (feof(mbox)) {
-				status = 1;
-				break;
-			}
-			die_errno("cannot read mbox");
-		}
-		if (!is_bare && is_from_line(buf.buf, buf.len))
-			break; /* done with one message */
-	}
-	fclose(output);
-	return status;
-}
-
-static int populate_maildir_list(struct string_list *list, const char *path)
-{
-	DIR *dir;
-	struct dirent *dent;
-	char *name = NULL;
-	char *subs[] = { "cur", "new", NULL };
-	char **sub;
-	int ret = -1;
-
-	for (sub = subs; *sub; ++sub) {
-		free(name);
-		name = xstrfmt("%s/%s", path, *sub);
-		if ((dir = opendir(name)) == NULL) {
-			if (errno == ENOENT)
-				continue;
-			error_errno("cannot opendir %s", name);
-			goto out;
-		}
-
-		while ((dent = readdir(dir)) != NULL) {
-			if (dent->d_name[0] == '.')
-				continue;
-			free(name);
-			name = xstrfmt("%s/%s", *sub, dent->d_name);
-			string_list_insert(list, name);
-		}
-
-		closedir(dir);
-	}
-
-	ret = 0;
-
-out:
-	free(name);
-	return ret;
-}
-
-static int maildir_filename_cmp(const char *a, const char *b)
-{
-	while (*a && *b) {
-		if (isdigit(*a) && isdigit(*b)) {
-			long int na, nb;
-			na = strtol(a, (char **)&a, 10);
-			nb = strtol(b, (char **)&b, 10);
-			if (na != nb)
-				return na - nb;
-			/* strtol advanced our pointers */
-		}
-		else {
-			if (*a != *b)
-				return (unsigned char)*a - (unsigned char)*b;
-			a++;
-			b++;
-		}
-	}
-	return (unsigned char)*a - (unsigned char)*b;
-}
-
-static int split_maildir(const char *maildir, const char *dir,
-	int nr_prec, int skip)
-{
-	char *file = NULL;
-	FILE *f = NULL;
-	int ret = -1;
-	int i;
-	struct string_list list = STRING_LIST_INIT_DUP;
-
-	list.cmp = maildir_filename_cmp;
-
-	if (populate_maildir_list(&list, maildir) < 0)
-		goto out;
-
-	for (i = 0; i < list.nr; i++) {
-		char *name;
-
-		free(file);
-		file = xstrfmt("%s/%s", maildir, list.items[i].string);
-
-		f = fopen(file, "r");
-		if (!f) {
-			error_errno("cannot open mail %s", file);
-			goto out;
-		}
-
-		if (strbuf_getwholeline(&buf, f, '\n')) {
-			error_errno("cannot read mail %s", file);
-			goto out;
-		}
-
-		name = xstrfmt("%s/%0*d", dir, nr_prec, ++skip);
-		split_one(f, name, 1);
-		free(name);
-
-		fclose(f);
-		f = NULL;
-	}
-
-	ret = skip;
-out:
-	if (f)
-		fclose(f);
-	free(file);
-	string_list_clear(&list, 1);
-	return ret;
-}
-
-static int split_mbox(const char *file, const char *dir, int allow_bare,
-		      int nr_prec, int skip)
-{
-	int ret = -1;
-	int peek;
-
-	FILE *f = !strcmp(file, "-") ? stdin : fopen(file, "r");
-	int file_done = 0;
-
-	if (!f) {
-		error_errno("cannot open mbox %s", file);
-		goto out;
-	}
-
-	do {
-		peek = fgetc(f);
-		if (peek == EOF) {
-			if (f == stdin)
-				/* empty stdin is OK */
-				ret = skip;
-			else {
-				fclose(f);
-				error(_("empty mbox: '%s'"), file);
-			}
-			goto out;
-		}
-	} while (isspace(peek));
-	ungetc(peek, f);
-
-	if (strbuf_getwholeline(&buf, f, '\n')) {
-		/* empty stdin is OK */
-		if (f != stdin) {
-			error("cannot read mbox %s", file);
-			goto out;
-		}
-		file_done = 1;
-	}
-
-	while (!file_done) {
-		char *name = xstrfmt("%s/%0*d", dir, nr_prec, ++skip);
-		file_done = split_one(f, name, allow_bare);
-		free(name);
-	}
-
-	if (f != stdin)
-		fclose(f);
-
-	ret = skip;
-out:
-	return ret;
-}
-
-int cmd_mailsplit(int argc, const char **argv, const char *prefix)
-{
-	int nr = 0, nr_prec = 4, num = 0;
-	int allow_bare = 0;
-	const char *dir = NULL;
-	const char **argp;
-	static const char *stdin_only[] = { "-", NULL };
-
-	for (argp = argv+1; *argp; argp++) {
-		const char *arg = *argp;
-
-		if (arg[0] != '-')
-			break;
-		/* do flags here */
-		if ( arg[1] == 'd' ) {
-			nr_prec = strtol(arg+2, NULL, 10);
-			if (nr_prec < 3 || 10 <= nr_prec)
-				usage(git_mailsplit_usage);
-			continue;
-		} else if ( arg[1] == 'f' ) {
-			nr = strtol(arg+2, NULL, 10);
-		} else if ( arg[1] == 'h' ) {
-			usage(git_mailsplit_usage);
-		} else if ( arg[1] == 'b' && !arg[2] ) {
-			allow_bare = 1;
-		} else if (!strcmp(arg, "--keep-cr")) {
-			keep_cr = 1;
-		} else if ( arg[1] == 'o' && arg[2] ) {
-			dir = arg+2;
-		} else if (!strcmp(arg, "--mboxrd")) {
-			mboxrd = 1;
-		} else if ( arg[1] == '-' && !arg[2] ) {
-			argp++;	/* -- marks end of options */
-			break;
-		} else {
-			die("unknown option: %s", arg);
-		}
-	}
-
-	if ( !dir ) {
-		/* Backwards compatibility: if no -o specified, accept
-		   <mbox> <dir> or just <dir> */
-		switch (argc - (argp-argv)) {
-		case 1:
-			dir = argp[0];
-			argp = stdin_only;
-			break;
-		case 2:
-			stdin_only[0] = argp[0];
-			dir = argp[1];
-			argp = stdin_only;
-			break;
-		default:
-			usage(git_mailsplit_usage);
-		}
-	} else {
-		/* New usage: if no more argument, parse stdin */
-		if ( !*argp )
-			argp = stdin_only;
-	}
-
-	while (*argp) {
-		const char *arg = *argp++;
-		struct stat argstat;
-		int ret = 0;
-
-		if (arg[0] == '-' && arg[1] == 0) {
-			ret = split_mbox(arg, dir, allow_bare, nr_prec, nr);
-			if (ret < 0) {
-				error("cannot split patches from stdin");
-				return 1;
-			}
-			num += (ret - nr);
-			nr = ret;
-			continue;
-		}
-
-		if (stat(arg, &argstat) == -1) {
-			error_errno("cannot stat %s", arg);
-			return 1;
-		}
-
-		if (S_ISDIR(argstat.st_mode))
-			ret = split_maildir(arg, dir, nr_prec, nr);
-		else
-			ret = split_mbox(arg, dir, allow_bare, nr_prec, nr);
-
-		if (ret < 0) {
-			error("cannot split patches from %s", arg);
-			return 1;
-		}
-		num += (ret - nr);
-		nr = ret;
-	}
-
-	printf("%d\n", num);
-
-	return 0;
-}