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git-show: grok blobs, trees and tags, too

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Since git-show is pure Porcelain, it is the ideal candidate to
pretty print other things than commits, too.

Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
Signed-off-by: Junio C Hamano <junkio@cox.net>
This commit is contained in:
Johannes Schindelin
2006-12-14 11:31:05 +01:00
committed by Junio C Hamano
parent 02c9e93547
commit 5d7eeee2ac
3 changed files with 115 additions and 9 deletions
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82
builtin-log.c
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@ -10,6 +10,7 @@
#include "revision.h"
#include "log-tree.h"
#include "builtin.h"
#include "tag.h"
#include <time.h>
#include <sys/time.h>
@ -71,9 +72,43 @@ int cmd_whatchanged(int argc, const char **argv, const char *prefix)
return cmd_log_walk(&rev);
}
static int show_object(const unsigned char *sha1, int suppress_header)
{
unsigned long size;
char type[20];
char *buf = read_sha1_file(sha1, type, &size);
int offset = 0;
if (!buf)
return error("Could not read object %s", sha1_to_hex(sha1));
if (suppress_header)
while (offset < size && buf[offset++] != '\n') {
int new_offset = offset;
while (new_offset < size && buf[new_offset++] != '\n')
; /* do nothing */
offset = new_offset;
}
if (offset < size)
fwrite(buf + offset, size - offset, 1, stdout);
free(buf);
return 0;
}
static int show_tree_object(const unsigned char *sha1,
const char *base, int baselen,
const char *pathname, unsigned mode, int stage)
{
printf("%s%s\n", pathname, S_ISDIR(mode) ? "/" : "");
return 0;
}
int cmd_show(int argc, const char **argv, const char *prefix)
{
struct rev_info rev;
struct object_array_entry *objects;
int i, count, ret = 0;
git_config(git_log_config);
init_revisions(&rev, prefix);
@ -85,7 +120,52 @@ int cmd_show(int argc, const char **argv, const char *prefix)
rev.ignore_merges = 0;
rev.no_walk = 1;
cmd_log_init(argc, argv, prefix, &rev);
return cmd_log_walk(&rev);
count = rev.pending.nr;
objects = rev.pending.objects;
for (i = 0; i < count && !ret; i++) {
struct object *o = objects[i].item;
const char *name = objects[i].name;
switch (o->type) {
case OBJ_BLOB:
ret = show_object(o->sha1, 0);
break;
case OBJ_TAG: {
struct tag *t = (struct tag *)o;
printf("%stag %s%s\n\n",
diff_get_color(rev.diffopt.color_diff,
DIFF_COMMIT),
t->tag,
diff_get_color(rev.diffopt.color_diff,
DIFF_RESET));
ret = show_object(o->sha1, 1);
objects[i].item = (struct object *)t->tagged;
i--;
break;
}
case OBJ_TREE:
printf("%stree %s%s\n\n",
diff_get_color(rev.diffopt.color_diff,
DIFF_COMMIT),
name,
diff_get_color(rev.diffopt.color_diff,
DIFF_RESET));
read_tree_recursive((struct tree *)o, "", 0, 0, NULL,
show_tree_object);
break;
case OBJ_COMMIT:
rev.pending.nr = rev.pending.alloc = 0;
rev.pending.objects = NULL;
add_object_array(o, name, &rev.pending);
ret = cmd_log_walk(&rev);
break;
default:
ret = error("Unknown type: %d", o->type);
}
}
free(objects);
return ret;
}
int cmd_log(int argc, const char **argv, const char *prefix)