Merge branch 'jc/clean-fix'

diff --git a/ident.c b/ident.c
index bb03bddd34f2471ed130c499affc369758d4bfd9..7631698f27a8e1685614c233037eb067eef65168 100644 (file)
--- a/ident.c
+++ b/ident.c
@@ -9,10 +9,10 @@
 
 static char git_default_date[50];
 
-static void copy_gecos(struct passwd *w, char *name, int sz)
+static void copy_gecos(const struct passwd *w, char *name, size_t sz)
 {
        char *src, *dst;
-       int len, nlen;
+       size_t len, nlen;
 
        nlen = strlen(w->pw_name);
 
@@ -43,13 +43,13 @@ static void copy_gecos(struct passwd *w, char *name, int sz)
 
 }
 
-static void copy_email(struct passwd *pw)
+static void copy_email(const struct passwd *pw)
 {
        /*
         * Make up a fake email address
         * (name + '@' + hostname [+ '.' + domainname])
         */
-       int len = strlen(pw->pw_name);
+       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);
@@ -83,11 +83,18 @@ static void setup_ident(void)
        }
 
        if (!git_default_email[0]) {
-               if (!pw)
-                       pw = getpwuid(getuid());
-               if (!pw)
-                       die("You don't exist. Go away!");
-               copy_email(pw);
+               const char *email = getenv("EMAIL");
+
+               if (email && email[0])
+                       strlcpy(git_default_email, email,
+                               sizeof(git_default_email));
+               else {
+                       if (!pw)
+                               pw = getpwuid(getuid());
+                       if (!pw)
+                               die("You don't exist. Go away!");
+                       copy_email(pw);
+               }
        }
 
        /* And set the default date */
@@ -95,9 +102,9 @@ static void setup_ident(void)
                datestamp(git_default_date, sizeof(git_default_date));
 }
 
-static int add_raw(char *buf, int size, int offset, const char *str)
+static int add_raw(char *buf, size_t size, int offset, const char *str)
 {
-       int len = strlen(str);
+       size_t len = strlen(str);
        if (offset + len > size)
                return size;
        memcpy(buf + offset, str, len);
@@ -106,34 +113,24 @@ static int add_raw(char *buf, int size, int offset, const char *str)
 
 static int crud(unsigned char c)
 {
-       static char crud_array[256];
-       static int crud_array_initialized = 0;
-
-       if (!crud_array_initialized) {
-               int k;
-
-               for (k = 0; k <= 31; ++k) crud_array[k] = 1;
-               crud_array[' '] = 1;
-               crud_array['.'] = 1;
-               crud_array[','] = 1;
-               crud_array[':'] = 1;
-               crud_array[';'] = 1;
-               crud_array['<'] = 1;
-               crud_array['>'] = 1;
-               crud_array['"'] = 1;
-               crud_array['\''] = 1;
-               crud_array_initialized = 1;
-       }
-       return crud_array[c];
+       return  c <= 32  ||
+               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, int size, int offset, const char *src)
+static int copy(char *buf, size_t size, int offset, const char *src)
 {
-       int i, len;
+       size_t i, len;
        unsigned char c;
 
        /* Remove crud from the beginning.. */
@@ -178,19 +175,21 @@ static const char *env_hint =
 "\n"
 "Run\n"
 "\n"
-"  git config user.email \"you@email.com\"\n"
-"  git config user.name \"Your Name\"\n"
+"  git config --global user.email \"you@example.com\"\n"
+"  git config --global user.name \"Your Name\"\n"
 "\n"
-"To set the identity in this repository.\n"
-"Add --global to set your account\'s default\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 error_on_no_name)
+static const char *fmt_ident_1(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 & 01);
+       int name_addr_only = !!(flag & 02);
 
        setup_ident();
        if (!name)
@@ -217,20 +216,36 @@ const char *fmt_ident(const char *name, const char *email,
        }
 
        strcpy(date, git_default_date);
-       if (date_str)
+       if (!name_addr_only && date_str)
                parse_date(date_str, date, sizeof(date));
 
        i = copy(buffer, sizeof(buffer), 0, name);
        i = add_raw(buffer, sizeof(buffer), i, " <");
        i = copy(buffer, sizeof(buffer), i, email);
-       i = add_raw(buffer, sizeof(buffer), i, "> ");
-       i = copy(buffer, sizeof(buffer), i, date);
+       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_ident(const char *name, const char *email,
+                     const char *date_str, int error_on_no_name)
+{
+       int flag = (error_on_no_name ? 01 : 0);
+       return fmt_ident_1(name, email, date_str, flag);
+}
+
+const char *fmt_name(const char *name, const char *email)
+{
+       return fmt_ident_1(name, email, NULL, 03);
+}
+
 const char *git_author_info(int error_on_no_name)
 {
        return fmt_ident(getenv("GIT_AUTHOR_NAME"),