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![Linus Torvalds](/assets/img/avatar_default.png)
This starts using the "user.name" and "user.email" config variables if they exist as the default name and email when committing. This means that you don't have to use the GIT_COMMITTER_EMAIL environment variable to override your email - you can just edit the config file instead. The patch looks bigger than it is because it makes the default name and email information non-static and renames it appropriately. And it moves the common git environment variables into a new library file, so that you can link against libgit.a and get the git environment without having to link in zlib and libcrypt. In short, most of it is renaming and moving, the real change core is just a few new lines in "git_default_config()" that copies the user config values to the new base. It also changes "git-var -l" to list the config variables. Signed-off-by: Linus Torvalds <torvalds@osdl.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
187 lines
4.1 KiB
C
187 lines
4.1 KiB
C
/*
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* ident.c
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*
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* create git identifier lines of the form "name <email> date"
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*
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* Copyright (C) 2005 Linus Torvalds
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*/
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#include "cache.h"
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#include <pwd.h>
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#include <time.h>
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#include <ctype.h>
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static char git_default_date[50];
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static void copy_gecos(struct passwd *w, char *name, int sz)
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{
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char *src, *dst;
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int len, nlen;
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nlen = strlen(w->pw_name);
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/* Traditionally GECOS field had office phone numbers etc, separated
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* with commas. Also & stands for capitalized form of the login name.
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*/
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for (len = 0, dst = name, src = w->pw_gecos; len < sz; src++) {
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int ch = *src;
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if (ch != '&') {
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*dst++ = ch;
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if (ch == 0 || ch == ',')
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break;
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len++;
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continue;
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}
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if (len + nlen < sz) {
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/* Sorry, Mr. McDonald... */
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*dst++ = toupper(*w->pw_name);
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memcpy(dst, w->pw_name + 1, nlen - 1);
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dst += nlen - 1;
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}
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}
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if (len < sz)
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name[len] = 0;
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else
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die("Your parents must have hated you!");
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}
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int setup_ident(void)
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{
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int len;
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struct passwd *pw = getpwuid(getuid());
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if (!pw)
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die("You don't exist. Go away!");
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/* Get the name ("gecos") */
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copy_gecos(pw, git_default_name, sizeof(git_default_name));
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/* Make up a fake email address (name + '@' + hostname [+ '.' + domainname]) */
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len = strlen(pw->pw_name);
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if (len > sizeof(git_default_email)/2)
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die("Your sysadmin must hate you!");
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memcpy(git_default_email, pw->pw_name, len);
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git_default_email[len++] = '@';
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gethostname(git_default_email + len, sizeof(git_default_email) - len);
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if (!strchr(git_default_email+len, '.')) {
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len = strlen(git_default_email);
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git_default_email[len++] = '.';
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getdomainname(git_default_email+len, sizeof(git_default_email)-len);
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}
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/* And set the default date */
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datestamp(git_default_date, sizeof(git_default_date));
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return 0;
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}
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static int add_raw(char *buf, int size, int offset, const char *str)
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{
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int len = strlen(str);
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if (offset + len > size)
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return size;
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memcpy(buf + offset, str, len);
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return offset + len;
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}
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static int crud(unsigned char c)
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{
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static char crud_array[256];
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static int crud_array_initialized = 0;
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if (!crud_array_initialized) {
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int k;
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for (k = 0; k <= 31; ++k) crud_array[k] = 1;
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crud_array[' '] = 1;
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crud_array['.'] = 1;
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crud_array[','] = 1;
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crud_array[':'] = 1;
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crud_array[';'] = 1;
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crud_array['<'] = 1;
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crud_array['>'] = 1;
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crud_array['"'] = 1;
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crud_array['\''] = 1;
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crud_array_initialized = 1;
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}
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return crud_array[c];
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}
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/*
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* Copy over a string to the destination, but avoid special
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* characters ('\n', '<' and '>') and remove crud at the end
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*/
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static int copy(char *buf, int size, int offset, const char *src)
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{
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int i, len;
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unsigned char c;
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/* Remove crud from the beginning.. */
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while ((c = *src) != 0) {
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if (!crud(c))
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break;
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src++;
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}
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/* Remove crud from the end.. */
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len = strlen(src);
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while (len > 0) {
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c = src[len-1];
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if (!crud(c))
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break;
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--len;
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}
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/*
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* Copy the rest to the buffer, but avoid the special
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* characters '\n' '<' and '>' that act as delimeters on
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* a identification line
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*/
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for (i = 0; i < len; i++) {
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c = *src++;
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switch (c) {
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case '\n': case '<': case '>':
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continue;
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}
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if (offset >= size)
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return size;
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buf[offset++] = c;
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}
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return offset;
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}
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char *get_ident(const char *name, const char *email, const char *date_str)
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{
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static char buffer[1000];
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char date[50];
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int i;
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if (!name)
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name = git_default_name;
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if (!email)
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email = git_default_email;
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strcpy(date, git_default_date);
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if (date_str)
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parse_date(date_str, date, sizeof(date));
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i = copy(buffer, sizeof(buffer), 0, name);
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i = add_raw(buffer, sizeof(buffer), i, " <");
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i = copy(buffer, sizeof(buffer), i, email);
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i = add_raw(buffer, sizeof(buffer), i, "> ");
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i = copy(buffer, sizeof(buffer), i, date);
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if (i >= sizeof(buffer))
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die("Impossibly long personal identifier");
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buffer[i] = 0;
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return buffer;
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}
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char *git_author_info(void)
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{
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return get_ident(getenv("GIT_AUTHOR_NAME"), getenv("GIT_AUTHOR_EMAIL"), getenv("GIT_AUTHOR_DATE"));
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}
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char *git_committer_info(void)
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{
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return get_ident(getenv("GIT_COMMITTER_NAME"), getenv("GIT_COMMITTER_EMAIL"), getenv("GIT_COMMITTER_DATE"));
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}
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