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-rw-r--r--third_party/git/ident.c653
1 files changed, 0 insertions, 653 deletions
diff --git a/third_party/git/ident.c b/third_party/git/ident.c
deleted file mode 100644
index 6aba4b5cb6f2..000000000000
--- a/third_party/git/ident.c
+++ /dev/null
@@ -1,653 +0,0 @@
-/*
- * ident.c
- *
- * create git identifier lines of the form "name <email> date"
- *
- * Copyright (C) 2005 Linus Torvalds
- */
-#include "cache.h"
-#include "config.h"
-
-static struct strbuf git_default_name = STRBUF_INIT;
-static struct strbuf git_default_email = STRBUF_INIT;
-static struct strbuf git_default_date = STRBUF_INIT;
-static struct strbuf git_author_name = STRBUF_INIT;
-static struct strbuf git_author_email = STRBUF_INIT;
-static struct strbuf git_committer_name = STRBUF_INIT;
-static struct strbuf git_committer_email = STRBUF_INIT;
-static int default_email_is_bogus;
-static int default_name_is_bogus;
-
-static int ident_use_config_only;
-
-#define IDENT_NAME_GIVEN 01
-#define IDENT_MAIL_GIVEN 02
-#define IDENT_ALL_GIVEN (IDENT_NAME_GIVEN|IDENT_MAIL_GIVEN)
-static int committer_ident_explicitly_given;
-static int author_ident_explicitly_given;
-static int ident_config_given;
-
-#ifdef NO_GECOS_IN_PWENT
-#define get_gecos(ignored) "&"
-#else
-#define get_gecos(struct_passwd) ((struct_passwd)->pw_gecos)
-#endif
-
-static struct passwd *xgetpwuid_self(int *is_bogus)
-{
-	struct passwd *pw;
-
-	errno = 0;
-	pw = getpwuid(getuid());
-	if (!pw) {
-		static struct passwd fallback;
-		fallback.pw_name = "unknown";
-#ifndef NO_GECOS_IN_PWENT
-		fallback.pw_gecos = "Unknown";
-#endif
-		pw = &fallback;
-		if (is_bogus)
-			*is_bogus = 1;
-	}
-	return pw;
-}
-
-static void copy_gecos(const struct passwd *w, struct strbuf *name)
-{
-	char *src;
-
-	/* Traditionally GECOS field had office phone numbers etc, separated
-	 * with commas.  Also & stands for capitalized form of the login name.
-	 */
-
-	for (src = get_gecos(w); *src && *src != ','; src++) {
-		int ch = *src;
-		if (ch != '&')
-			strbuf_addch(name, ch);
-		else {
-			/* Sorry, Mr. McDonald... */
-			strbuf_addch(name, toupper(*w->pw_name));
-			strbuf_addstr(name, w->pw_name + 1);
-		}
-	}
-}
-
-static int add_mailname_host(struct strbuf *buf)
-{
-	FILE *mailname;
-	struct strbuf mailnamebuf = STRBUF_INIT;
-
-	mailname = fopen_or_warn("/etc/mailname", "r");
-	if (!mailname)
-		return -1;
-
-	if (strbuf_getline(&mailnamebuf, mailname) == EOF) {
-		if (ferror(mailname))
-			warning_errno("cannot read /etc/mailname");
-		strbuf_release(&mailnamebuf);
-		fclose(mailname);
-		return -1;
-	}
-	/* success! */
-	strbuf_addbuf(buf, &mailnamebuf);
-	strbuf_release(&mailnamebuf);
-	fclose(mailname);
-	return 0;
-}
-
-static int canonical_name(const char *host, struct strbuf *out)
-{
-	int status = -1;
-
-#ifndef NO_IPV6
-	struct addrinfo hints, *ai;
-	memset (&hints, '\0', sizeof (hints));
-	hints.ai_flags = AI_CANONNAME;
-	if (!getaddrinfo(host, NULL, &hints, &ai)) {
-		if (ai && ai->ai_canonname && strchr(ai->ai_canonname, '.')) {
-			strbuf_addstr(out, ai->ai_canonname);
-			status = 0;
-		}
-		freeaddrinfo(ai);
-	}
-#else
-	struct hostent *he = gethostbyname(host);
-	if (he && strchr(he->h_name, '.')) {
-		strbuf_addstr(out, he->h_name);
-		status = 0;
-	}
-#endif /* NO_IPV6 */
-
-	return status;
-}
-
-static void add_domainname(struct strbuf *out, int *is_bogus)
-{
-	char buf[HOST_NAME_MAX + 1];
-
-	if (xgethostname(buf, sizeof(buf))) {
-		warning_errno("cannot get host name");
-		strbuf_addstr(out, "(none)");
-		*is_bogus = 1;
-		return;
-	}
-	if (strchr(buf, '.'))
-		strbuf_addstr(out, buf);
-	else if (canonical_name(buf, out) < 0) {
-		strbuf_addf(out, "%s.(none)", buf);
-		*is_bogus = 1;
-	}
-}
-
-static void copy_email(const struct passwd *pw, struct strbuf *email,
-		       int *is_bogus)
-{
-	/*
-	 * Make up a fake email address
-	 * (name + '@' + hostname [+ '.' + domainname])
-	 */
-	strbuf_addstr(email, pw->pw_name);
-	strbuf_addch(email, '@');
-
-	if (!add_mailname_host(email))
-		return;	/* read from "/etc/mailname" (Debian) */
-	add_domainname(email, is_bogus);
-}
-
-const char *ident_default_name(void)
-{
-	if (!(ident_config_given & IDENT_NAME_GIVEN) && !git_default_name.len) {
-		copy_gecos(xgetpwuid_self(&default_name_is_bogus), &git_default_name);
-		strbuf_trim(&git_default_name);
-	}
-	return git_default_name.buf;
-}
-
-const char *ident_default_email(void)
-{
-	if (!(ident_config_given & IDENT_MAIL_GIVEN) && !git_default_email.len) {
-		const char *email = getenv("EMAIL");
-
-		if (email && email[0]) {
-			strbuf_addstr(&git_default_email, email);
-			committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
-			author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
-		} else if ((email = query_user_email()) && email[0]) {
-			strbuf_addstr(&git_default_email, email);
-			free((char *)email);
-		} else
-			copy_email(xgetpwuid_self(&default_email_is_bogus),
-				   &git_default_email, &default_email_is_bogus);
-		strbuf_trim(&git_default_email);
-	}
-	return git_default_email.buf;
-}
-
-static const char *ident_default_date(void)
-{
-	if (!git_default_date.len)
-		datestamp(&git_default_date);
-	return git_default_date.buf;
-}
-
-void reset_ident_date(void)
-{
-	strbuf_reset(&git_default_date);
-}
-
-static int crud(unsigned char c)
-{
-	return  c <= 32  ||
-		c == '.' ||
-		c == ',' ||
-		c == ':' ||
-		c == ';' ||
-		c == '<' ||
-		c == '>' ||
-		c == '"' ||
-		c == '\\' ||
-		c == '\'';
-}
-
-static int has_non_crud(const char *str)
-{
-	for (; *str; str++) {
-		if (!crud(*str))
-			return 1;
-	}
-	return 0;
-}
-
-/*
- * Copy over a string to the destination, but avoid special
- * characters ('\n', '<' and '>') and remove crud at the end
- */
-static void strbuf_addstr_without_crud(struct strbuf *sb, const char *src)
-{
-	size_t i, len;
-	unsigned char c;
-
-	/* Remove crud from the beginning.. */
-	while ((c = *src) != 0) {
-		if (!crud(c))
-			break;
-		src++;
-	}
-
-	/* Remove crud from the end.. */
-	len = strlen(src);
-	while (len > 0) {
-		c = src[len-1];
-		if (!crud(c))
-			break;
-		--len;
-	}
-
-	/*
-	 * Copy the rest to the buffer, but avoid the special
-	 * characters '\n' '<' and '>' that act as delimiters on
-	 * an identification line. We can only remove crud, never add it,
-	 * so 'len' is our maximum.
-	 */
-	strbuf_grow(sb, len);
-	for (i = 0; i < len; i++) {
-		c = *src++;
-		switch (c) {
-		case '\n': case '<': case '>':
-			continue;
-		}
-		sb->buf[sb->len++] = c;
-	}
-	sb->buf[sb->len] = '\0';
-}
-
-/*
- * Reverse of fmt_ident(); given an ident line, split the fields
- * to allow the caller to parse it.
- * Signal a success by returning 0, but date/tz fields of the result
- * can still be NULL if the input line only has the name/email part
- * (e.g. reading from a reflog entry).
- */
-int split_ident_line(struct ident_split *split, const char *line, int len)
-{
-	const char *cp;
-	size_t span;
-	int status = -1;
-
-	memset(split, 0, sizeof(*split));
-
-	split->name_begin = line;
-	for (cp = line; *cp && cp < line + len; cp++)
-		if (*cp == '<') {
-			split->mail_begin = cp + 1;
-			break;
-		}
-	if (!split->mail_begin)
-		return status;
-
-	for (cp = split->mail_begin - 2; line <= cp; cp--)
-		if (!isspace(*cp)) {
-			split->name_end = cp + 1;
-			break;
-		}
-	if (!split->name_end) {
-		/* no human readable name */
-		split->name_end = split->name_begin;
-	}
-
-	for (cp = split->mail_begin; cp < line + len; cp++)
-		if (*cp == '>') {
-			split->mail_end = cp;
-			break;
-		}
-	if (!split->mail_end)
-		return status;
-
-	/*
-	 * Look from the end-of-line to find the trailing ">" of the mail
-	 * address, even though we should already know it as split->mail_end.
-	 * This can help in cases of broken idents with an extra ">" somewhere
-	 * in the email address.  Note that we are assuming the timestamp will
-	 * never have a ">" in it.
-	 *
-	 * Note that we will always find some ">" before going off the front of
-	 * the string, because will always hit the split->mail_end closing
-	 * bracket.
-	 */
-	for (cp = line + len - 1; *cp != '>'; cp--)
-		;
-
-	for (cp = cp + 1; cp < line + len && isspace(*cp); cp++)
-		;
-	if (line + len <= cp)
-		goto person_only;
-	split->date_begin = cp;
-	span = strspn(cp, "0123456789");
-	if (!span)
-		goto person_only;
-	split->date_end = split->date_begin + span;
-	for (cp = split->date_end; cp < line + len && isspace(*cp); cp++)
-		;
-	if (line + len <= cp || (*cp != '+' && *cp != '-'))
-		goto person_only;
-	split->tz_begin = cp;
-	span = strspn(cp + 1, "0123456789");
-	if (!span)
-		goto person_only;
-	split->tz_end = split->tz_begin + 1 + span;
-	return 0;
-
-person_only:
-	split->date_begin = NULL;
-	split->date_end = NULL;
-	split->tz_begin = NULL;
-	split->tz_end = NULL;
-	return 0;
-}
-
-
-static void ident_env_hint(enum want_ident whose_ident)
-{
-	switch (whose_ident) {
-	case WANT_AUTHOR_IDENT:
-		fputs(_("Author identity unknown\n"), stderr);
-		break;
-	case WANT_COMMITTER_IDENT:
-		fputs(_("Committer identity unknown\n"), stderr);
-		break;
-	default:
-		break;
-	}
-
-	fputs(_("\n"
-		"*** Please tell me who you are.\n"
-		"\n"
-		"Run\n"
-		"\n"
-		"  git config --global user.email \"you@example.com\"\n"
-		"  git config --global user.name \"Your Name\"\n"
-		"\n"
-		"to set your account\'s default identity.\n"
-		"Omit --global to set the identity only in this repository.\n"
-		"\n"), stderr);
-}
-
-const char *fmt_ident(const char *name, const char *email,
-		      enum want_ident whose_ident, const char *date_str, int flag)
-{
-	static int index;
-	static struct strbuf ident_pool[2] = { STRBUF_INIT, STRBUF_INIT };
-	int strict = (flag & IDENT_STRICT);
-	int want_date = !(flag & IDENT_NO_DATE);
-	int want_name = !(flag & IDENT_NO_NAME);
-
-	struct strbuf *ident = &ident_pool[index];
-	index = (index + 1) % ARRAY_SIZE(ident_pool);
-
-	if (!email) {
-		if (whose_ident == WANT_AUTHOR_IDENT && git_author_email.len)
-			email = git_author_email.buf;
-		else if (whose_ident == WANT_COMMITTER_IDENT && git_committer_email.len)
-			email = git_committer_email.buf;
-	}
-	if (!email) {
-		if (strict && ident_use_config_only
-		    && !(ident_config_given & IDENT_MAIL_GIVEN)) {
-			ident_env_hint(whose_ident);
-			die(_("no email was given and auto-detection is disabled"));
-		}
-		email = ident_default_email();
-		if (strict && default_email_is_bogus) {
-			ident_env_hint(whose_ident);
-			die(_("unable to auto-detect email address (got '%s')"), email);
-		}
-	}
-
-	if (want_name) {
-		int using_default = 0;
-		if (!name) {
-			if (whose_ident == WANT_AUTHOR_IDENT && git_author_name.len)
-				name = git_author_name.buf;
-			else if (whose_ident == WANT_COMMITTER_IDENT &&
-					git_committer_name.len)
-				name = git_committer_name.buf;
-		}
-		if (!name) {
-			if (strict && ident_use_config_only
-			    && !(ident_config_given & IDENT_NAME_GIVEN)) {
-				ident_env_hint(whose_ident);
-				die(_("no name was given and auto-detection is disabled"));
-			}
-			name = ident_default_name();
-			using_default = 1;
-			if (strict && default_name_is_bogus) {
-				ident_env_hint(whose_ident);
-				die(_("unable to auto-detect name (got '%s')"), name);
-			}
-		}
-		if (!*name) {
-			struct passwd *pw;
-			if (strict) {
-				if (using_default)
-					ident_env_hint(whose_ident);
-				die(_("empty ident name (for <%s>) not allowed"), email);
-			}
-			pw = xgetpwuid_self(NULL);
-			name = pw->pw_name;
-		}
-		if (strict && !has_non_crud(name))
-			die(_("name consists only of disallowed characters: %s"), name);
-	}
-
-	strbuf_reset(ident);
-	if (want_name) {
-		strbuf_addstr_without_crud(ident, name);
-		strbuf_addstr(ident, " <");
-	}
-	strbuf_addstr_without_crud(ident, email);
-	if (want_name)
-		strbuf_addch(ident, '>');
-	if (want_date) {
-		strbuf_addch(ident, ' ');
-		if (date_str && date_str[0]) {
-			if (parse_date(date_str, ident) < 0)
-				die(_("invalid date format: %s"), date_str);
-		}
-		else
-			strbuf_addstr(ident, ident_default_date());
-	}
-
-	return ident->buf;
-}
-
-const char *fmt_name(enum want_ident whose_ident)
-{
-	char *name = NULL;
-	char *email = NULL;
-
-	switch (whose_ident) {
-	case WANT_BLANK_IDENT:
-		break;
-	case WANT_AUTHOR_IDENT:
-		name = getenv("GIT_AUTHOR_NAME");
-		email = getenv("GIT_AUTHOR_EMAIL");
-		break;
-	case WANT_COMMITTER_IDENT:
-		name = getenv("GIT_COMMITTER_NAME");
-		email = getenv("GIT_COMMITTER_EMAIL");
-		break;
-	}
-	return fmt_ident(name, email, whose_ident, NULL,
-			IDENT_STRICT | IDENT_NO_DATE);
-}
-
-const char *git_author_info(int flag)
-{
-	if (getenv("GIT_AUTHOR_NAME"))
-		author_ident_explicitly_given |= IDENT_NAME_GIVEN;
-	if (getenv("GIT_AUTHOR_EMAIL"))
-		author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
-	return fmt_ident(getenv("GIT_AUTHOR_NAME"),
-			 getenv("GIT_AUTHOR_EMAIL"),
-			 WANT_AUTHOR_IDENT,
-			 getenv("GIT_AUTHOR_DATE"),
-			 flag);
-}
-
-const char *git_committer_info(int flag)
-{
-	if (getenv("GIT_COMMITTER_NAME"))
-		committer_ident_explicitly_given |= IDENT_NAME_GIVEN;
-	if (getenv("GIT_COMMITTER_EMAIL"))
-		committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
-	return fmt_ident(getenv("GIT_COMMITTER_NAME"),
-			 getenv("GIT_COMMITTER_EMAIL"),
-			 WANT_COMMITTER_IDENT,
-			 getenv("GIT_COMMITTER_DATE"),
-			 flag);
-}
-
-static int ident_is_sufficient(int user_ident_explicitly_given)
-{
-#ifndef WINDOWS
-	return (user_ident_explicitly_given & IDENT_MAIL_GIVEN);
-#else
-	return (user_ident_explicitly_given == IDENT_ALL_GIVEN);
-#endif
-}
-
-int committer_ident_sufficiently_given(void)
-{
-	return ident_is_sufficient(committer_ident_explicitly_given);
-}
-
-int author_ident_sufficiently_given(void)
-{
-	return ident_is_sufficient(author_ident_explicitly_given);
-}
-
-static int set_ident(const char *var, const char *value)
-{
-	if (!strcmp(var, "author.name")) {
-		if (!value)
-			return config_error_nonbool(var);
-		strbuf_reset(&git_author_name);
-		strbuf_addstr(&git_author_name, value);
-		author_ident_explicitly_given |= IDENT_NAME_GIVEN;
-		ident_config_given |= IDENT_NAME_GIVEN;
-		return 0;
-	}
-
-	if (!strcmp(var, "author.email")) {
-		if (!value)
-			return config_error_nonbool(var);
-		strbuf_reset(&git_author_email);
-		strbuf_addstr(&git_author_email, value);
-		author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
-		ident_config_given |= IDENT_MAIL_GIVEN;
-		return 0;
-	}
-
-	if (!strcmp(var, "committer.name")) {
-		if (!value)
-			return config_error_nonbool(var);
-		strbuf_reset(&git_committer_name);
-		strbuf_addstr(&git_committer_name, value);
-		committer_ident_explicitly_given |= IDENT_NAME_GIVEN;
-		ident_config_given |= IDENT_NAME_GIVEN;
-		return 0;
-	}
-
-	if (!strcmp(var, "committer.email")) {
-		if (!value)
-			return config_error_nonbool(var);
-		strbuf_reset(&git_committer_email);
-		strbuf_addstr(&git_committer_email, value);
-		committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
-		ident_config_given |= IDENT_MAIL_GIVEN;
-		return 0;
-	}
-
-	if (!strcmp(var, "user.name")) {
-		if (!value)
-			return config_error_nonbool(var);
-		strbuf_reset(&git_default_name);
-		strbuf_addstr(&git_default_name, value);
-		committer_ident_explicitly_given |= IDENT_NAME_GIVEN;
-		author_ident_explicitly_given |= IDENT_NAME_GIVEN;
-		ident_config_given |= IDENT_NAME_GIVEN;
-		return 0;
-	}
-
-	if (!strcmp(var, "user.email")) {
-		if (!value)
-			return config_error_nonbool(var);
-		strbuf_reset(&git_default_email);
-		strbuf_addstr(&git_default_email, value);
-		committer_ident_explicitly_given |= IDENT_MAIL_GIVEN;
-		author_ident_explicitly_given |= IDENT_MAIL_GIVEN;
-		ident_config_given |= IDENT_MAIL_GIVEN;
-		return 0;
-	}
-
-	return 0;
-}
-
-int git_ident_config(const char *var, const char *value, void *data)
-{
-	if (!strcmp(var, "user.useconfigonly")) {
-		ident_use_config_only = git_config_bool(var, value);
-		return 0;
-	}
-
-	return set_ident(var, value);
-}
-
-static void set_env_if(const char *key, const char *value, int *given, int bit)
-{
-	if ((*given & bit) || getenv(key))
-		return; /* nothing to do */
-	setenv(key, value, 0);
-	*given |= bit;
-}
-
-void prepare_fallback_ident(const char *name, const char *email)
-{
-	set_env_if("GIT_AUTHOR_NAME", name,
-		   &author_ident_explicitly_given, IDENT_NAME_GIVEN);
-	set_env_if("GIT_AUTHOR_EMAIL", email,
-		   &author_ident_explicitly_given, IDENT_MAIL_GIVEN);
-	set_env_if("GIT_COMMITTER_NAME", name,
-		   &committer_ident_explicitly_given, IDENT_NAME_GIVEN);
-	set_env_if("GIT_COMMITTER_EMAIL", email,
-		   &committer_ident_explicitly_given, IDENT_MAIL_GIVEN);
-}
-
-static int buf_cmp(const char *a_begin, const char *a_end,
-		   const char *b_begin, const char *b_end)
-{
-	int a_len = a_end - a_begin;
-	int b_len = b_end - b_begin;
-	int min = a_len < b_len ? a_len : b_len;
-	int cmp;
-
-	cmp = memcmp(a_begin, b_begin, min);
-	if (cmp)
-		return cmp;
-
-	return a_len - b_len;
-}
-
-int ident_cmp(const struct ident_split *a,
-	      const struct ident_split *b)
-{
-	int cmp;
-
-	cmp = buf_cmp(a->mail_begin, a->mail_end,
-		      b->mail_begin, b->mail_end);
-	if (cmp)
-		return cmp;
-
-	return buf_cmp(a->name_begin, a->name_end,
-		       b->name_begin, b->name_end);
-}