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refactor duplicated fill_mm() in checkout and merge-recursive

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The following function is duplicated:

  fill_mm

Move it to xdiff-interface.c and rename it 'read_mmblob', as suggested
by Junio C Hamano.

Also, change parameters order for consistency with read_mmfile().

Signed-off-by: Michael Lukashov <michael.lukashov@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Michael Lukashov 2010-02-16 23:42:55 +00:00 committed by Junio C Hamano
parent e923eaeb90
commit 06b65939b0
4 changed files with 24 additions and 41 deletions
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24
builtin-checkout.c
View File

@ -128,24 +128,6 @@ static int checkout_stage(int stage, struct cache_entry *ce, int pos,
(stage == 2) ? "our" : "their");
}
/* NEEDSWORK: share with merge-recursive */
static void fill_mm(const unsigned char *sha1, mmfile_t *mm)
{
unsigned long size;
enum object_type type;
if (!hashcmp(sha1, null_sha1)) {
mm->ptr = xstrdup("");
mm->size = 0;
return;
}
mm->ptr = read_sha1_file(sha1, &type, &size);
if (!mm->ptr || type != OBJ_BLOB)
die("unable to read blob object %s", sha1_to_hex(sha1));
mm->size = size;
}
static int checkout_merged(int pos, struct checkout *state)
{
struct cache_entry *ce = active_cache[pos];
@ -163,9 +145,9 @@ static int checkout_merged(int pos, struct checkout *state)
ce_stage(active_cache[pos+2]) != 3)
return error("path '%s' does not have all 3 versions", path);
fill_mm(active_cache[pos]->sha1, &ancestor);
fill_mm(active_cache[pos+1]->sha1, &ours);
fill_mm(active_cache[pos+2]->sha1, &theirs);
read_mmblob(&ancestor, active_cache[pos]->sha1);
read_mmblob(&ours, active_cache[pos+1]->sha1);
read_mmblob(&theirs, active_cache[pos+2]->sha1);
status = ll_merge(&result_buf, path, &ancestor,
&ours, "ours", &theirs, "theirs", 0);

23
merge-recursive.c
View File

@ -599,23 +599,6 @@ struct merge_file_info
merge:1;
};
static void fill_mm(const unsigned char *sha1, mmfile_t *mm)
{
unsigned long size;
enum object_type type;
if (!hashcmp(sha1, null_sha1)) {
mm->ptr = xstrdup("");
mm->size = 0;
return;
}
mm->ptr = read_sha1_file(sha1, &type, &size);
if (!mm->ptr || type != OBJ_BLOB)
die("unable to read blob object %s", sha1_to_hex(sha1));
mm->size = size;
}
static int merge_3way(struct merge_options *o,
mmbuffer_t *result_buf,
struct diff_filespec *one,
@ -653,9 +636,9 @@ static int merge_3way(struct merge_options *o,
name2 = xstrdup(mkpath("%s", branch2));
}
fill_mm(one->sha1, &orig);
fill_mm(a->sha1, &src1);
fill_mm(b->sha1, &src2);
read_mmblob(&orig, one->sha1);
read_mmblob(&src1, a->sha1);
read_mmblob(&src2, b->sha1);
merge_status = ll_merge(result_buf, a->path, &orig,
&src1, name1, &src2, name2,

17
xdiff-interface.c
View File

@ -218,6 +218,23 @@ int read_mmfile(mmfile_t *ptr, const char *filename)
return 0;
}
void read_mmblob(mmfile_t *ptr, const unsigned char *sha1)
{
unsigned long size;
enum object_type type;
if (!hashcmp(sha1, null_sha1)) {
ptr->ptr = xstrdup("");
ptr->size = 0;
return;
}
ptr->ptr = read_sha1_file(sha1, &type, &size);
if (!ptr->ptr || type != OBJ_BLOB)
die("unable to read blob object %s", sha1_to_hex(sha1));
ptr->size = size;
}
#define FIRST_FEW_BYTES 8000
int buffer_is_binary(const char *ptr, unsigned long size)
{

1
xdiff-interface.h
View File

@ -18,6 +18,7 @@ int parse_hunk_header(char *line, int len,
int *ob, int *on,
int *nb, int *nn);
int read_mmfile(mmfile_t *ptr, const char *filename);
void read_mmblob(mmfile_t *ptr, const unsigned char *sha1);
int buffer_is_binary(const char *ptr, unsigned long size);
extern void xdiff_set_find_func(xdemitconf_t *xecfg, const char *line, int cflags);