user-manual: reorganize public git repo discussion

diff --git a/ident.c b/ident.c
index 6ad8fedd60ba1461d77dc2b1d66e52cf56158c6f..bb03bddd34f2471ed130c499affc369758d4bfd9 100644 (file)
--- a/ident.c
+++ b/ident.c
@@ -43,19 +43,13 @@ static void copy_gecos(struct passwd *w, char *name, int sz)
 
 }
 
-int setup_ident(void)
+static void copy_email(struct passwd *pw)
 {
-       int len;
-       struct passwd *pw = getpwuid(getuid());
-
-       if (!pw)
-               die("You don't exist. Go away!");
-
-       /* Get the name ("gecos") */
-       copy_gecos(pw, git_default_name, sizeof(git_default_name));
-
-       /* Make up a fake email address (name + '@' + hostname [+ '.' + domainname]) */
-       len = strlen(pw->pw_name);
+       /*
+        * Make up a fake email address
+        * (name + '@' + hostname [+ '.' + domainname])
+        */
+       int 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);
@@ -68,13 +62,37 @@ int setup_ident(void)
                len = strlen(git_default_email);
                git_default_email[len++] = '.';
                if (he && (domainname = strchr(he->h_name, '.')))
-                       strlcpy(git_default_email + len, domainname + 1, sizeof(git_default_email) - len);
+                       strlcpy(git_default_email + len, domainname + 1,
+                               sizeof(git_default_email) - len);
                else
-                       strlcpy(git_default_email + len, "(none)", sizeof(git_default_email) - len);
+                       strlcpy(git_default_email + len, "(none)",
+                               sizeof(git_default_email) - len);
+       }
+}
+
+static void setup_ident(void)
+{
+       struct passwd *pw = NULL;
+
+       /* Get the name ("gecos") */
+       if (!git_default_name[0]) {
+               pw = getpwuid(getuid());
+               if (!pw)
+                       die("You don't exist. Go away!");
+               copy_gecos(pw, git_default_name, sizeof(git_default_name));
        }
+
+       if (!git_default_email[0]) {
+               if (!pw)
+                       pw = getpwuid(getuid());
+               if (!pw)
+                       die("You don't exist. Go away!");
+               copy_email(pw);
+       }
+
        /* And set the default date */
-       datestamp(git_default_date, sizeof(git_default_date));
-       return 0;
+       if (!git_default_date[0])
+               datestamp(git_default_date, sizeof(git_default_date));
 }
 
 static int add_raw(char *buf, int size, int offset, const char *str)
@@ -160,32 +178,42 @@ static const char *env_hint =
 "\n"
 "Run\n"
 "\n"
-"  git repo-config user.email \"you@email.com\"\n"
-"  git repo-config user.name \"Your Name\"\n"
+"  git config user.email \"you@email.com\"\n"
+"  git config user.name \"Your Name\"\n"
 "\n"
 "To set the identity in this repository.\n"
 "Add --global to set your account\'s default\n"
 "\n";
 
-static const char *get_ident(const char *name, const char *email,
-                            const char *date_str, int error_on_no_name)
+const char *fmt_ident(const char *name, const char *email,
+                     const char *date_str, int error_on_no_name)
 {
        static char buffer[1000];
        char date[50];
        int i;
 
+       setup_ident();
        if (!name)
                name = git_default_name;
        if (!email)
                email = git_default_email;
 
        if (!*name) {
-               if (name == git_default_name && env_hint) {
+               struct passwd *pw;
+
+               if (0 <= error_on_no_name &&
+                   name == git_default_name && env_hint) {
                        fprintf(stderr, env_hint, au_env, co_env);
                        env_hint = NULL; /* warn only once, for "git-var -l" */
                }
-               if (error_on_no_name)
+               if (0 < error_on_no_name)
                        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, git_default_date);
@@ -205,7 +233,7 @@ static const char *get_ident(const char *name, const char *email,
 
 const char *git_author_info(int error_on_no_name)
 {
-       return get_ident(getenv("GIT_AUTHOR_NAME"),
+       return fmt_ident(getenv("GIT_AUTHOR_NAME"),
                         getenv("GIT_AUTHOR_EMAIL"),
                         getenv("GIT_AUTHOR_DATE"),
                         error_on_no_name);
@@ -213,23 +241,8 @@ const char *git_author_info(int error_on_no_name)
 
 const char *git_committer_info(int error_on_no_name)
 {
-       return get_ident(getenv("GIT_COMMITTER_NAME"),
+       return fmt_ident(getenv("GIT_COMMITTER_NAME"),
                         getenv("GIT_COMMITTER_EMAIL"),
                         getenv("GIT_COMMITTER_DATE"),
                         error_on_no_name);
 }
-
-void ignore_missing_committer_name()
-{
-       /* If we did not get a name from the user's gecos entry then
-        * git_default_name is empty; so instead load the username
-        * into it as a 'good enough for now' approximation of who
-        * this user is.
-        */
-       if (!*git_default_name) {
-               struct passwd *pw = getpwuid(getuid());
-               if (!pw)
-                       die("You don't exist. Go away!");
-               strlcpy(git_default_name, pw->pw_name, sizeof(git_default_name));
-       }
-}