[PATCH] Add --info-only option to git-update-cache.
[gitweb.git] / commit-tree.c
index 23de13361944ad7ba7c5320cf7cdd04e81842c60..0d504e7e4be10083da6e677bbcb95bc186fc6277 100644 (file)
@@ -7,9 +7,7 @@
 
 #include <pwd.h>
 #include <time.h>
-#include <string.h>
 #include <ctype.h>
-#include <time.h>
 
 #define BLOCKING (1ul << 14)
 
@@ -80,148 +78,6 @@ static void remove_special(char *p)
        }
 }
 
-static const char *month_names[] = {
-        "Jan", "Feb", "Mar", "Apr", "May", "Jun",
-        "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
-};
-
-static const char *weekday_names[] = {
-        "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
-};
-
-
-static char *skipfws(char *str)
-{
-       while (isspace(*str))
-               str++;
-       return str;
-}
-
-       
-/* Gr. strptime is crap for this; it doesn't have a way to require RFC2822
-   (i.e. English) day/month names, and it doesn't work correctly with %z. */
-static void parse_rfc2822_date(char *date, char *result, int maxlen)
-{
-       struct tm tm;
-       char *p;
-       int i, offset;
-       time_t then;
-
-       memset(&tm, 0, sizeof(tm));
-
-       /* Skip day-name */
-       p = skipfws(date);
-       if (!isdigit(*p)) {
-               for (i=0; i<7; i++) {
-                       if (!strncmp(p,weekday_names[i],3) && p[3] == ',') {
-                               p = skipfws(p+4);
-                               goto day;
-                       }
-               }
-               return;
-       }                                       
-
-       /* day */
- day:
-       tm.tm_mday = strtoul(p, &p, 10);
-
-       if (tm.tm_mday < 1 || tm.tm_mday > 31)
-               return;
-
-       if (!isspace(*p))
-               return;
-
-       p = skipfws(p);
-
-       /* month */
-
-       for (i=0; i<12; i++) {
-               if (!strncmp(p, month_names[i], 3) && isspace(p[3])) {
-                       tm.tm_mon = i;
-                       p = skipfws(p+strlen(month_names[i]));
-                       goto year;
-               }
-       }
-       return; /* Error -- bad month */
-
-       /* year */
- year: 
-       tm.tm_year = strtoul(p, &p, 10);
-
-       if (!tm.tm_year && !isspace(*p))
-               return;
-
-       if (tm.tm_year > 1900)
-               tm.tm_year -= 1900;
-               
-       p=skipfws(p);
-
-       /* hour */
-       if (!isdigit(*p))
-               return;
-       tm.tm_hour = strtoul(p, &p, 10);
-       
-       if (!tm.tm_hour > 23)
-               return;
-
-       if (*p != ':')
-               return; /* Error -- bad time */
-       p++;
-
-       /* minute */
-       if (!isdigit(*p))
-               return;
-       tm.tm_min = strtoul(p, &p, 10);
-       
-       if (!tm.tm_min > 59)
-               return;
-
-       if (isspace(*p))
-               goto zone;
-
-       if (*p != ':')
-               return; /* Error -- bad time */
-       p++;
-
-       /* second */
-       if (!isdigit(*p))
-               return;
-       tm.tm_sec = strtoul(p, &p, 10);
-       
-       if (!tm.tm_sec > 59)
-               return;
-
-       if (!isspace(*p))
-               return;
-
- zone:
-       p = skipfws(p);
-
-       if (*p == '-')
-               offset = -60;
-       else if (*p == '+')
-               offset = 60;
-       else
-              return;
-
-       if (!isdigit(p[1]) || !isdigit(p[2]) || !isdigit(p[3]) || !isdigit(p[4]))
-               return;
-
-       i = strtoul(p+1, NULL, 10);
-       offset *= ((i % 100) + ((i / 100) * 60));
-
-       if (*(skipfws(p + 5)))
-               return;
-
-       then = mktime(&tm); /* mktime appears to ignore the GMT offset, stupidly */
-       if (then == -1)
-               return;
-
-       then -= offset;
-
-       snprintf(result, maxlen, "%lu %5.5s", then, p);
-}
-
 static void check_valid(unsigned char *sha1, const char *expect)
 {
        void *buf;
@@ -239,24 +95,35 @@ static void check_valid(unsigned char *sha1, const char *expect)
  * how multi-way merges are represented.
  */
 #define MAXPARENT (16)
+static unsigned char parent_sha1[MAXPARENT][20];
 
-static char *commit_tree_usage = "commit-tree <sha1> [-p <sha1>]* < changelog";
+static char *commit_tree_usage = "git-commit-tree <sha1> [-p <sha1>]* < changelog";
+
+static int new_parent(int idx)
+{
+       int i;
+       unsigned char *sha1 = parent_sha1[idx];
+       for (i = 0; i < idx; i++) {
+               if (!memcmp(parent_sha1[i], sha1, 20)) {
+                       error("duplicate parent %s ignored", sha1_to_hex(sha1));
+                       return 0;
+               }
+       }
+       return 1;
+}
 
 int main(int argc, char **argv)
 {
        int i, len;
        int parents = 0;
        unsigned char tree_sha1[20];
-       unsigned char parent_sha1[MAXPARENT][20];
        unsigned char commit_sha1[20];
        char *gecos, *realgecos, *commitgecos;
        char *email, *commitemail, realemail[1000];
-       char date[20], realdate[20];
-       char *audate;
+       char date[50], realdate[50];
+       char *audate, *cmdate;
        char comment[1000];
        struct passwd *pw;
-       time_t now;
-       struct tm *tm;
        char *buffer;
        unsigned int size;
 
@@ -267,10 +134,11 @@ int main(int argc, char **argv)
        for (i = 2; i < argc; i += 2) {
                char *a, *b;
                a = argv[i]; b = argv[i+1];
-               if (!b || strcmp(a, "-p") || get_sha1_hex(b, parent_sha1[parents]))
+               if (!b || strcmp(a, "-p") || get_sha1(b, parent_sha1[parents]))
                        usage(commit_tree_usage);
                check_valid(parent_sha1[parents], "commit");
-               parents++;
+               if (new_parent(parents))
+                       parents++;
        }
        if (!parents)
                fprintf(stderr, "Committing initial tree %s\n", argv[1]);
@@ -286,19 +154,20 @@ int main(int argc, char **argv)
                strcat(realemail, ".");
                getdomainname(realemail+strlen(realemail), sizeof(realemail)-strlen(realemail)-1);
        }
-       time(&now);
-       tm = localtime(&now);
 
-       strftime(realdate, sizeof(realdate), "%s %z", tm);
+       datestamp(realdate, sizeof(realdate));
        strcpy(date, realdate);
 
-       commitgecos = getenv("COMMIT_AUTHOR_NAME") ? : realgecos;
-       commitemail = getenv("COMMIT_AUTHOR_EMAIL") ? : realemail;
-       gecos = getenv("AUTHOR_NAME") ? : realgecos;
-       email = getenv("AUTHOR_EMAIL") ? : realemail;
-       audate = getenv("AUTHOR_DATE");
+       commitgecos = gitenv("GIT_COMMITTER_NAME") ? : realgecos;
+       commitemail = gitenv("GIT_COMMITTER_EMAIL") ? : realemail;
+       gecos = gitenv("GIT_AUTHOR_NAME") ? : realgecos;
+       email = gitenv("GIT_AUTHOR_EMAIL") ? : realemail;
+       audate = gitenv("GIT_AUTHOR_DATE");
        if (audate)
-               parse_rfc2822_date(audate, date, sizeof(date));
+               parse_date(audate, date, sizeof(date));
+       cmdate = gitenv("GIT_COMMITTER_DATE");
+       if (cmdate)
+               parse_date(cmdate, realdate, sizeof(realdate));
 
        remove_special(gecos); remove_special(realgecos); remove_special(commitgecos);
        remove_special(email); remove_special(realemail); remove_special(commitemail);