b9f0ac1710
There are no more callers who want this, so we can drop it. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
417 lines
9.2 KiB
C
417 lines
9.2 KiB
C
/*
|
|
* ident.c
|
|
*
|
|
* create git identifier lines of the form "name <email> date"
|
|
*
|
|
* Copyright (C) 2005 Linus Torvalds
|
|
*/
|
|
#include "cache.h"
|
|
|
|
#define MAX_GITNAME (1000)
|
|
static char git_default_name[MAX_GITNAME];
|
|
static char git_default_email[MAX_GITNAME];
|
|
static char git_default_date[50];
|
|
int user_ident_explicitly_given;
|
|
|
|
#ifdef NO_GECOS_IN_PWENT
|
|
#define get_gecos(ignored) "&"
|
|
#else
|
|
#define get_gecos(struct_passwd) ((struct_passwd)->pw_gecos)
|
|
#endif
|
|
|
|
static void copy_gecos(const struct passwd *w, char *name, size_t sz)
|
|
{
|
|
char *src, *dst;
|
|
size_t len, nlen;
|
|
|
|
nlen = strlen(w->pw_name);
|
|
|
|
/* Traditionally GECOS field had office phone numbers etc, separated
|
|
* with commas. Also & stands for capitalized form of the login name.
|
|
*/
|
|
|
|
for (len = 0, dst = name, src = get_gecos(w); len < sz; src++) {
|
|
int ch = *src;
|
|
if (ch != '&') {
|
|
*dst++ = ch;
|
|
if (ch == 0 || ch == ',')
|
|
break;
|
|
len++;
|
|
continue;
|
|
}
|
|
if (len + nlen < sz) {
|
|
/* Sorry, Mr. McDonald... */
|
|
*dst++ = toupper(*w->pw_name);
|
|
memcpy(dst, w->pw_name + 1, nlen - 1);
|
|
dst += nlen - 1;
|
|
len += nlen;
|
|
}
|
|
}
|
|
if (len < sz)
|
|
name[len] = 0;
|
|
else
|
|
die("Your parents must have hated you!");
|
|
|
|
}
|
|
|
|
static int add_mailname_host(char *buf, size_t len)
|
|
{
|
|
FILE *mailname;
|
|
|
|
mailname = fopen("/etc/mailname", "r");
|
|
if (!mailname) {
|
|
if (errno != ENOENT)
|
|
warning("cannot open /etc/mailname: %s",
|
|
strerror(errno));
|
|
return -1;
|
|
}
|
|
if (!fgets(buf, len, mailname)) {
|
|
if (ferror(mailname))
|
|
warning("cannot read /etc/mailname: %s",
|
|
strerror(errno));
|
|
fclose(mailname);
|
|
return -1;
|
|
}
|
|
/* success! */
|
|
fclose(mailname);
|
|
|
|
len = strlen(buf);
|
|
if (len && buf[len-1] == '\n')
|
|
buf[len-1] = '\0';
|
|
return 0;
|
|
}
|
|
|
|
static void add_domainname(char *buf, size_t len)
|
|
{
|
|
struct hostent *he;
|
|
size_t namelen;
|
|
const char *domainname;
|
|
|
|
if (gethostname(buf, len)) {
|
|
warning("cannot get host name: %s", strerror(errno));
|
|
strlcpy(buf, "(none)", len);
|
|
return;
|
|
}
|
|
namelen = strlen(buf);
|
|
if (memchr(buf, '.', namelen))
|
|
return;
|
|
|
|
he = gethostbyname(buf);
|
|
buf[namelen++] = '.';
|
|
buf += namelen;
|
|
len -= namelen;
|
|
if (he && (domainname = strchr(he->h_name, '.')))
|
|
strlcpy(buf, domainname + 1, len);
|
|
else
|
|
strlcpy(buf, "(none)", len);
|
|
}
|
|
|
|
static void copy_email(const struct passwd *pw)
|
|
{
|
|
/*
|
|
* Make up a fake email address
|
|
* (name + '@' + hostname [+ '.' + domainname])
|
|
*/
|
|
size_t len = strlen(pw->pw_name);
|
|
if (len > sizeof(git_default_email)/2)
|
|
die("Your sysadmin must hate you!");
|
|
memcpy(git_default_email, pw->pw_name, len);
|
|
git_default_email[len++] = '@';
|
|
|
|
if (!add_mailname_host(git_default_email + len,
|
|
sizeof(git_default_email) - len))
|
|
return; /* read from "/etc/mailname" (Debian) */
|
|
add_domainname(git_default_email + len,
|
|
sizeof(git_default_email) - len);
|
|
}
|
|
|
|
const char *ident_default_name(void)
|
|
{
|
|
if (!git_default_name[0]) {
|
|
struct passwd *pw = getpwuid(getuid());
|
|
if (!pw)
|
|
die("You don't exist. Go away!");
|
|
copy_gecos(pw, git_default_name, sizeof(git_default_name));
|
|
}
|
|
return git_default_name;
|
|
}
|
|
|
|
const char *ident_default_email(void)
|
|
{
|
|
if (!git_default_email[0]) {
|
|
const char *email = getenv("EMAIL");
|
|
|
|
if (email && email[0]) {
|
|
strlcpy(git_default_email, email,
|
|
sizeof(git_default_email));
|
|
user_ident_explicitly_given |= IDENT_MAIL_GIVEN;
|
|
} else {
|
|
struct passwd *pw = getpwuid(getuid());
|
|
if (!pw)
|
|
die("You don't exist. Go away!");
|
|
copy_email(pw);
|
|
}
|
|
}
|
|
return git_default_email;
|
|
}
|
|
|
|
const char *ident_default_date(void)
|
|
{
|
|
if (!git_default_date[0])
|
|
datestamp(git_default_date, sizeof(git_default_date));
|
|
return git_default_date;
|
|
}
|
|
|
|
static int add_raw(char *buf, size_t size, int offset, const char *str)
|
|
{
|
|
size_t len = strlen(str);
|
|
if (offset + len > size)
|
|
return size;
|
|
memcpy(buf + offset, str, len);
|
|
return offset + len;
|
|
}
|
|
|
|
static int crud(unsigned char c)
|
|
{
|
|
return c <= 32 ||
|
|
c == '.' ||
|
|
c == ',' ||
|
|
c == ':' ||
|
|
c == ';' ||
|
|
c == '<' ||
|
|
c == '>' ||
|
|
c == '"' ||
|
|
c == '\\' ||
|
|
c == '\'';
|
|
}
|
|
|
|
/*
|
|
* Copy over a string to the destination, but avoid special
|
|
* characters ('\n', '<' and '>') and remove crud at the end
|
|
*/
|
|
static int copy(char *buf, size_t size, int offset, 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
|
|
*/
|
|
for (i = 0; i < len; i++) {
|
|
c = *src++;
|
|
switch (c) {
|
|
case '\n': case '<': case '>':
|
|
continue;
|
|
}
|
|
if (offset >= size)
|
|
return size;
|
|
buf[offset++] = c;
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
return status;
|
|
|
|
for (cp = split->mail_begin; cp < line + len; cp++)
|
|
if (*cp == '>') {
|
|
split->mail_end = cp;
|
|
break;
|
|
}
|
|
if (!split->mail_end)
|
|
return status;
|
|
|
|
for (cp = split->mail_end + 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 const char *env_hint =
|
|
"\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";
|
|
|
|
const char *fmt_ident(const char *name, const char *email,
|
|
const char *date_str, int flag)
|
|
{
|
|
static char buffer[1000];
|
|
char date[50];
|
|
int i;
|
|
int error_on_no_name = (flag & IDENT_ERROR_ON_NO_NAME);
|
|
int name_addr_only = (flag & IDENT_NO_DATE);
|
|
|
|
if (!name)
|
|
name = ident_default_name();
|
|
if (!email)
|
|
email = ident_default_email();
|
|
|
|
if (!*name) {
|
|
struct passwd *pw;
|
|
|
|
if (error_on_no_name) {
|
|
if (name == git_default_name)
|
|
fputs(env_hint, stderr);
|
|
die("empty ident %s <%s> not allowed", name, email);
|
|
}
|
|
pw = getpwuid(getuid());
|
|
if (!pw)
|
|
die("You don't exist. Go away!");
|
|
strlcpy(git_default_name, pw->pw_name,
|
|
sizeof(git_default_name));
|
|
name = git_default_name;
|
|
}
|
|
|
|
strcpy(date, ident_default_date());
|
|
if (!name_addr_only && date_str && date_str[0]) {
|
|
if (parse_date(date_str, date, sizeof(date)) < 0)
|
|
die("invalid date format: %s", date_str);
|
|
}
|
|
|
|
i = copy(buffer, sizeof(buffer), 0, name);
|
|
i = add_raw(buffer, sizeof(buffer), i, " <");
|
|
i = copy(buffer, sizeof(buffer), i, email);
|
|
if (!name_addr_only) {
|
|
i = add_raw(buffer, sizeof(buffer), i, "> ");
|
|
i = copy(buffer, sizeof(buffer), i, date);
|
|
} else {
|
|
i = add_raw(buffer, sizeof(buffer), i, ">");
|
|
}
|
|
if (i >= sizeof(buffer))
|
|
die("Impossibly long personal identifier");
|
|
buffer[i] = 0;
|
|
return buffer;
|
|
}
|
|
|
|
const char *fmt_name(const char *name, const char *email)
|
|
{
|
|
return fmt_ident(name, email, NULL, IDENT_ERROR_ON_NO_NAME | IDENT_NO_DATE);
|
|
}
|
|
|
|
const char *git_author_info(int flag)
|
|
{
|
|
return fmt_ident(getenv("GIT_AUTHOR_NAME"),
|
|
getenv("GIT_AUTHOR_EMAIL"),
|
|
getenv("GIT_AUTHOR_DATE"),
|
|
flag);
|
|
}
|
|
|
|
const char *git_committer_info(int flag)
|
|
{
|
|
if (getenv("GIT_COMMITTER_NAME"))
|
|
user_ident_explicitly_given |= IDENT_NAME_GIVEN;
|
|
if (getenv("GIT_COMMITTER_EMAIL"))
|
|
user_ident_explicitly_given |= IDENT_MAIL_GIVEN;
|
|
return fmt_ident(getenv("GIT_COMMITTER_NAME"),
|
|
getenv("GIT_COMMITTER_EMAIL"),
|
|
getenv("GIT_COMMITTER_DATE"),
|
|
flag);
|
|
}
|
|
|
|
int user_ident_sufficiently_given(void)
|
|
{
|
|
#ifndef WINDOWS
|
|
return (user_ident_explicitly_given & IDENT_MAIL_GIVEN);
|
|
#else
|
|
return (user_ident_explicitly_given == IDENT_ALL_GIVEN);
|
|
#endif
|
|
}
|
|
|
|
int git_ident_config(const char *var, const char *value, void *data)
|
|
{
|
|
if (!strcmp(var, "user.name")) {
|
|
if (!value)
|
|
return config_error_nonbool(var);
|
|
strlcpy(git_default_name, value, sizeof(git_default_name));
|
|
user_ident_explicitly_given |= IDENT_NAME_GIVEN;
|
|
return 0;
|
|
}
|
|
|
|
if (!strcmp(var, "user.email")) {
|
|
if (!value)
|
|
return config_error_nonbool(var);
|
|
strlcpy(git_default_email, value, sizeof(git_default_email));
|
|
user_ident_explicitly_given |= IDENT_MAIL_GIVEN;
|
|
return 0;
|
|
}
|
|
|
|
return 0;
|
|
}
|