log: teach "terminator" vs "separator" mode to "--pretty=format"

This attached patch introduces a single bit "use_terminator" in "struct
rev_info", which is normally false (i.e. most formats use separator
semantics) but by flipping it to true, you can ask for terminator
semantics just like oneline format does.

The function get_commit_format(), which is what parses "--pretty=" option,
now takes a pointer to "struct rev_info" and updates its commit_format and
use_terminator fields.  It used to return the value of type "enum
cmit_fmt", but all the callers assigned it to rev->commit_format.

There are only two cases the code turns use_terminator on.  Obviously, the
traditional oneline format (--pretty=oneline) is one of them, and the new
case is --pretty=tformat:... that acts like --pretty=format:... but flips
the bit on.

With this, "--pretty=tformat:%H %s" acts like --pretty=oneline.

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin-commit.c b/builtin-commit.c
index 660a345..8bf3503 100644 (file)
--- a/builtin-commit.c
+++ b/builtin-commit.c
@@ -810,7 +810,7 @@ static void print_summary(const char *prefix, const unsigned char *sha1)
 
        rev.verbose_header = 1;
        rev.show_root_diff = 1;
-       rev.commit_format = get_commit_format("format:%h: %s");
+       get_commit_format("format:%h: %s", &rev);
        rev.always_show_header = 0;
        rev.diffopt.detect_rename = 1;
        rev.diffopt.rename_limit = 100;

diff --git a/builtin-log.c b/builtin-log.c
index 5c00725..1670d0b 100644 (file)
--- a/builtin-log.c
+++ b/builtin-log.c
@@ -56,7 +56,7 @@ static void cmd_log_init(int argc, const char **argv, const char *prefix,
        rev->abbrev = DEFAULT_ABBREV;
        rev->commit_format = CMIT_FMT_DEFAULT;
        if (fmt_pretty)
-               rev->commit_format = get_commit_format(fmt_pretty);
+               get_commit_format(fmt_pretty, rev);
        rev->verbose_header = 1;
        DIFF_OPT_SET(&rev->diffopt, RECURSIVE);
        rev->show_root_diff = default_show_root;
@@ -400,6 +400,7 @@ int cmd_log_reflog(int argc, const char **argv, const char *prefix)
         * allow us to set a different default.
         */
        rev.commit_format = CMIT_FMT_ONELINE;
+       rev.use_terminator = 1;
        rev.always_show_header = 1;
 
        /*

diff --git a/commit.h b/commit.h
index 2f63bc8..2d94d41 100644 (file)
--- a/commit.h
+++ b/commit.h
@@ -63,7 +63,8 @@ enum cmit_fmt {
 };
 
 extern int non_ascii(int);
-extern enum cmit_fmt get_commit_format(const char *arg);
+struct rev_info; /* in revision.h, it circularly uses enum cmit_fmt */
+extern void get_commit_format(const char *arg, struct rev_info *);
 extern void format_commit_message(const struct commit *commit,
                                   const void *format, struct strbuf *sb);
 extern void pretty_print_commit(enum cmit_fmt fmt, const struct commit*,

diff --git a/log-tree.c b/log-tree.c
index 9d54061..8f5436b 100644 (file)
--- a/log-tree.c
+++ b/log-tree.c
@@ -249,9 +249,9 @@ void show_log(struct rev_info *opt, const char *sep)
         *    not have an empty line between entries.
         */
        extra = "";
-       if (*sep != '\n' && opt->commit_format == CMIT_FMT_ONELINE)
+       if (*sep != '\n' && opt->use_terminator)
                extra = "\n";
-       if (opt->shown_one && opt->commit_format != CMIT_FMT_ONELINE)
+       if (opt->shown_one && !opt->use_terminator)
                putchar(opt->diffopt.line_termination);
        opt->shown_one = 1;
 

diff --git a/pretty.c b/pretty.c
index 6c04176..6872932 100644 (file)
--- a/pretty.c
+++ b/pretty.c
@@ -4,40 +4,49 @@
 #include "diff.h"
 #include "revision.h"
 
-static struct cmt_fmt_map {
-       const char *n;
-       size_t cmp_len;
-       enum cmit_fmt v;
-} cmt_fmts[] = {
-       { "raw",        1,      CMIT_FMT_RAW },
-       { "medium",     1,      CMIT_FMT_MEDIUM },
-       { "short",      1,      CMIT_FMT_SHORT },
-       { "email",      1,      CMIT_FMT_EMAIL },
-       { "full",       5,      CMIT_FMT_FULL },
-       { "fuller",     5,      CMIT_FMT_FULLER },
-       { "oneline",    1,      CMIT_FMT_ONELINE },
-       { "format:",    7,      CMIT_FMT_USERFORMAT},
-};
-
 static char *user_format;
 
-enum cmit_fmt get_commit_format(const char *arg)
+void get_commit_format(const char *arg, struct rev_info *rev)
 {
        int i;
-
-       if (!arg || !*arg)
-               return CMIT_FMT_DEFAULT;
+       static struct cmt_fmt_map {
+               const char *n;
+               size_t cmp_len;
+               enum cmit_fmt v;
+       } cmt_fmts[] = {
+               { "raw",        1,      CMIT_FMT_RAW },
+               { "medium",     1,      CMIT_FMT_MEDIUM },
+               { "short",      1,      CMIT_FMT_SHORT },
+               { "email",      1,      CMIT_FMT_EMAIL },
+               { "full",       5,      CMIT_FMT_FULL },
+               { "fuller",     5,      CMIT_FMT_FULLER },
+               { "oneline",    1,      CMIT_FMT_ONELINE },
+       };
+
+       rev->use_terminator = 0;
+       if (!arg || !*arg) {
+               rev->commit_format = CMIT_FMT_DEFAULT;
+               return;
+       }
        if (*arg == '=')
                arg++;
-       if (!prefixcmp(arg, "format:")) {
+       if (!prefixcmp(arg, "format:") || !prefixcmp(arg, "tformat:")) {
+               const char *cp = strchr(arg, ':') + 1;
                free(user_format);
-               user_format = xstrdup(arg + 7);
-               return CMIT_FMT_USERFORMAT;
+               user_format = xstrdup(cp);
+               if (arg[0] == 't')
+                       rev->use_terminator = 1;
+               rev->commit_format = CMIT_FMT_USERFORMAT;
+               return;
        }
        for (i = 0; i < ARRAY_SIZE(cmt_fmts); i++) {
                if (!strncmp(arg, cmt_fmts[i].n, cmt_fmts[i].cmp_len) &&
-                   !strncmp(arg, cmt_fmts[i].n, strlen(arg)))
-                       return cmt_fmts[i].v;
+                   !strncmp(arg, cmt_fmts[i].n, strlen(arg))) {
+                       if (cmt_fmts[i].v == CMIT_FMT_ONELINE)
+                               rev->use_terminator = 1;
+                       rev->commit_format = cmt_fmts[i].v;
+                       return;
+               }
        }
 
        die("invalid --pretty format: %s", arg);

diff --git a/revision.c b/revision.c
index 196fedc..781c503 100644 (file)
--- a/revision.c
+++ b/revision.c
@@ -1198,7 +1198,7 @@ int setup_revisions(int argc, const char **argv, struct rev_info *revs, const ch
                        }
                        if (!prefixcmp(arg, "--pretty")) {
                                revs->verbose_header = 1;
-                               revs->commit_format = get_commit_format(arg+8);
+                               get_commit_format(arg+8, revs);
                                continue;
                        }
                        if (!strcmp(arg, "--root")) {

diff --git a/revision.h b/revision.h
index c8b3b94..31217f8 100644 (file)
--- a/revision.h
+++ b/revision.h
@@ -64,7 +64,8 @@ struct rev_info {
 
        /* Format info */
        unsigned int    shown_one:1,
-                       abbrev_commit:1;
+                       abbrev_commit:1,
+                       use_terminator:1;
        enum date_mode date_mode;
 
        const char **ignore_packed; /* pretend objects in these are unpacked */