From 06b65939b083ba1b71043005bf83b4883e98264e Mon Sep 17 00:00:00 2001
From: Michael Lukashov <michael.lukashov@gmail.com>
Date: Tue, 16 Feb 2010 23:42:55 +0000
Subject: [PATCH] refactor duplicated fill_mm() in checkout and merge-recursive
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>
---
builtin-checkout.c | 24 +++---------------------
merge-recursive.c | 23 +++--------------------
xdiff-interface.c | 17 +++++++++++++++++
xdiff-interface.h | 1 +
4 files changed, 24 insertions(+), 41 deletions(-)
diff --git a/builtin-checkout.c b/builtin-checkout.c
index 527781728e..22ae92f608 100644
--- a/builtin-checkout.c
+++ b/builtin-checkout.c
@@ -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);
diff --git a/merge-recursive.c b/merge-recursive.c
index cb53b01c19..195ebf9744 100644
--- a/merge-recursive.c
+++ b/merge-recursive.c
@@ -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,
diff --git a/xdiff-interface.c b/xdiff-interface.c
index 01f14fb50f..ca5e3fbae8 100644
--- a/xdiff-interface.c
+++ b/xdiff-interface.c
@@ -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)
{
diff --git a/xdiff-interface.h b/xdiff-interface.h
index 55572c39a1..abba70c16b 100644
--- a/xdiff-interface.h
+++ b/xdiff-interface.h
@@ -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);