Merge branch 'np/delta' into next

diff --git a/commit.c b/commit.c
index ca25574500fe3c88d2cc2953b7dd019b3acab9e7..f4e4eea014d997f5b825a09f2c9f7620205e6243 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -36,6 +36,8 @@ enum cmit_fmt get_commit_format(const char *arg)
                return CMIT_FMT_FULL;
        if (!strcmp(arg, "=fuller"))
                return CMIT_FMT_FULLER;
+       if (!strcmp(arg, "=email"))
+               return CMIT_FMT_EMAIL;
        if (!strcmp(arg, "=oneline"))
                return CMIT_FMT_ONELINE;
        die("invalid --pretty format");
@@ -160,8 +162,8 @@ struct commit_graft *read_graft_line(char *buf, int len)
 
        if (buf[len-1] == '\n')
                buf[--len] = 0;
-       if (buf[0] == '#')
-               return 0;
+       if (buf[0] == '#' || buf[0] == '\0')
+               return NULL;
        if ((len + 1) % 41) {
        bad_graft_data:
                error("bad graft data: %s", buf);
@@ -192,6 +194,8 @@ int read_graft_file(const char *graft_file)
                /* The format is just "Commit Parent1 Parent2 ...\n" */
                int len = strlen(buf);
                struct commit_graft *graft = read_graft_line(buf, len);
+               if (!graft)
+                       continue;
                if (register_commit_graft(graft, 1))
                        error("duplicate graft data: %s", buf);
        }
@@ -426,6 +430,10 @@ static int add_user_info(const char *what, enum cmit_fmt fmt, char *buf, const c
        time = strtoul(date, &date, 10);
        tz = strtol(date, NULL, 10);
 
+       if (fmt == CMIT_FMT_EMAIL) {
+               what = "From";
+               filler = "";
+       }
        ret = sprintf(buf, "%s: %.*s%.*s\n", what,
                      (fmt == CMIT_FMT_FULLER) ? 4 : 0,
                      filler, namelen, line);
@@ -433,6 +441,9 @@ static int add_user_info(const char *what, enum cmit_fmt fmt, char *buf, const c
        case CMIT_FMT_MEDIUM:
                ret += sprintf(buf + ret, "Date:   %s\n", show_date(time, tz));
                break;
+       case CMIT_FMT_EMAIL:
+               ret += sprintf(buf + ret, "Date: %s\n", show_date(time, tz));
+               break;
        case CMIT_FMT_FULLER:
                ret += sprintf(buf + ret, "%sDate: %s\n", what, show_date(time, tz));
                break;
@@ -443,10 +454,12 @@ static int add_user_info(const char *what, enum cmit_fmt fmt, char *buf, const c
        return ret;
 }
 
-static int is_empty_line(const char *line, int len)
+static int is_empty_line(const char *line, int *len_p)
 {
+       int len = *len_p;
        while (len && isspace(line[len-1]))
                len--;
+       *len_p = len;
        return !len;
 }
 
@@ -455,7 +468,8 @@ static int add_merge_info(enum cmit_fmt fmt, char *buf, const struct commit *com
        struct commit_list *parent = commit->parents;
        int offset;
 
-       if ((fmt == CMIT_FMT_ONELINE) || !parent || !parent->next)
+       if ((fmt == CMIT_FMT_ONELINE) || (fmt == CMIT_FMT_EMAIL) ||
+           !parent || !parent->next)
                return 0;
 
        offset = sprintf(buf, "Merge:");
@@ -478,9 +492,15 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit
 {
        int hdr = 1, body = 0;
        unsigned long offset = 0;
-       int indent = (fmt == CMIT_FMT_ONELINE) ? 0 : 4;
+       int indent = 4;
        int parents_shown = 0;
        const char *msg = commit->buffer;
+       const char *subject = NULL;
+
+       if (fmt == CMIT_FMT_EMAIL)
+               subject = "Subject: [PATCH] ";
+       if (fmt == CMIT_FMT_ONELINE || fmt == CMIT_FMT_EMAIL)
+               indent = 0;
 
        for (;;) {
                const char *line = msg;
@@ -504,7 +524,7 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit
                if (hdr) {
                        if (linelen == 1) {
                                hdr = 0;
-                               if (fmt != CMIT_FMT_ONELINE)
+                               if ((fmt != CMIT_FMT_ONELINE) && !subject)
                                        buf[offset++] = '\n';
                                continue;
                        }
@@ -542,20 +562,29 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const struct commit *commit
                        continue;
                }
 
-               if (is_empty_line(line, linelen)) {
+               if (is_empty_line(line, &linelen)) {
                        if (!body)
                                continue;
+                       if (subject)
+                               continue;
                        if (fmt == CMIT_FMT_SHORT)
                                break;
                } else {
                        body = 1;
                }
 
+               if (subject) {
+                       int slen = strlen(subject);
+                       memcpy(buf + offset, subject, slen);
+                       offset += slen;
+               }
                memset(buf + offset, ' ', indent);
                memcpy(buf + offset + indent, line, linelen);
                offset += linelen + indent;
+               buf[offset++] = '\n';
                if (fmt == CMIT_FMT_ONELINE)
                        break;
+               subject = NULL;
        }
        while (offset && isspace(buf[offset-1]))
                offset--;