Introduce --pretty=oneline format.

This introduces --pretty=oneline to git-rev-tree and
git-rev-list commands to show only the first line of the commit
message, without frills.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/commit.c b/commit.c
index 3ac421a..59e93d4 100644 (file)
--- a/commit.c
+++ b/commit.c
@@ -33,6 +33,8 @@ enum cmit_fmt get_commit_format(const char *arg)
                return CMIT_FMT_SHORT;
        if (!strcmp(arg, "=full"))
                return CMIT_FMT_FULL;
+       if (!strcmp(arg, "=oneline"))
+               return CMIT_FMT_ONELINE;
        die("invalid --pretty format");
 }
 
@@ -350,6 +352,8 @@ static int add_user_info(const char *what, enum cmit_fmt fmt, char *buf, const c
        unsigned long time;
        int tz, ret;
 
+       if (fmt == CMIT_FMT_ONELINE)
+               return 0;
        date = strchr(line, '>');
        if (!date)
                return 0;
@@ -373,6 +377,9 @@ static int is_empty_line(const char *line, int len)
 static int add_parent_info(enum cmit_fmt fmt, char *buf, const char *line, int parents)
 {
        int offset = 0;
+
+       if (fmt == CMIT_FMT_ONELINE)
+               return offset;
        switch (parents) {
        case 1:
                break;
@@ -393,6 +400,7 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned l
        int hdr = 1, body = 0;
        unsigned long offset = 0;
        int parents = 0;
+       int indent = (fmt == CMIT_FMT_ONELINE) ? 0 : 4;
 
        for (;;) {
                const char *line = msg;
@@ -416,7 +424,8 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned l
                if (hdr) {
                        if (linelen == 1) {
                                hdr = 0;
-                               buf[offset++] = '\n';
+                               if (fmt != CMIT_FMT_ONELINE)
+                                       buf[offset++] = '\n';
                                continue;
                        }
                        if (fmt == CMIT_FMT_RAW) {
@@ -446,13 +455,23 @@ unsigned long pretty_print_commit(enum cmit_fmt fmt, const char *msg, unsigned l
                } else {
                        body = 1;
                }
-               memset(buf + offset, ' ', 4);
-               memcpy(buf + offset + 4, line, linelen);
-               offset += linelen + 4;
+
+               memset(buf + offset, ' ', indent);
+               memcpy(buf + offset + indent, line, linelen);
+               offset += linelen + indent;
+               if (fmt == CMIT_FMT_ONELINE)
+                       break;
+       }
+       if (fmt == CMIT_FMT_ONELINE) {
+               /* We do not want the terminating newline */
+               if (buf[offset - 1] == '\n')
+                       offset--;
+       }
+       else {
+               /* Make sure there is an EOLN */
+               if (buf[offset - 1] != '\n')
+                       buf[offset++] = '\n';
        }
-       /* Make sure there is an EOLN */
-       if (buf[offset - 1] != '\n')
-               buf[offset++] = '\n';
        buf[offset] = '\0';
        return offset;
 }

diff --git a/commit.h b/commit.h
index c24ab21..5d179d4 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -40,6 +40,7 @@ enum cmit_fmt {
        CMIT_FMT_DEFAULT = CMIT_FMT_MEDIUM,
        CMIT_FMT_SHORT,
        CMIT_FMT_FULL,
+       CMIT_FMT_ONELINE,
 };
 
 extern enum cmit_fmt get_commit_format(const char *arg);

diff --git a/rev-list.c b/rev-list.c
index 1a03bf7..ce5b8b2 100644 (file)
--- a/rev-list.c
+++ b/rev-list.c
@@ -63,7 +63,11 @@ static void show_commit(struct commit *commit)
                        parents = parents->next;
                }
        }
-       putchar('\n');
+       if (commit_format == CMIT_FMT_ONELINE)
+               putchar(' ');
+       else
+               putchar('\n');
+
        if (verbose_header) {
                static char pretty_header[16384];
                pretty_print_commit(commit_format, commit->buffer, ~0, pretty_header, sizeof(pretty_header));
@@ -503,7 +507,10 @@ int main(int argc, char **argv)
                        commit_format = get_commit_format(arg+8);
                        verbose_header = 1;
                        hdr_termination = '\n';
-                       prefix = "commit ";
+                       if (commit_format == CMIT_FMT_ONELINE)
+                               prefix = "";
+                       else
+                               prefix = "commit ";
                        continue;
                }
                if (!strncmp(arg, "--no-merges", 11)) {