Re: [PATCH v2 03/53] Convert struct cache_tree to use struct object_id

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On 05/01, brian m. carlson wrote:
> Convert the sha1 member of struct cache_tree to struct object_id by
> changing the definition and applying the following semantic patch, plus
> the standard object_id transforms:
> 
> @@
> struct cache_tree E1;
> @@
> - E1.sha1
> + E1.oid.hash
> 
> @@
> struct cache_tree *E1;
> @@
> - E1->sha1
> + E1->oid.hash
> 
> Fix up one reference to active_cache_tree which was not automatically
> caught by Coccinelle.  These changes are prerequisites for converting
> parse_object.
> 
> Signed-off-by: brian m. carlson <sandals@xxxxxxxxxxxxxxxxxxxx>
> ---
>  builtin/commit.c                |  2 +-
>  builtin/fsck.c                  |  4 ++--
>  cache-tree.c                    | 31 ++++++++++++++++---------------
>  cache-tree.h                    |  3 ++-
>  merge-recursive.c               |  2 +-
>  revision.c                      |  2 +-
>  sequencer.c                     |  3 ++-
>  t/helper/test-dump-cache-tree.c |  4 ++--
>  8 files changed, 27 insertions(+), 24 deletions(-)
> 
> diff --git a/builtin/commit.c b/builtin/commit.c
> index 1d805f5da..8685c888f 100644
> --- a/builtin/commit.c
> +++ b/builtin/commit.c
> @@ -1758,7 +1758,7 @@ int cmd_commit(int argc, const char **argv, const char *prefix)
>  		append_merge_tag_headers(parents, &tail);
>  	}
>  
> -	if (commit_tree_extended(sb.buf, sb.len, active_cache_tree->sha1,
> +	if (commit_tree_extended(sb.buf, sb.len, active_cache_tree->oid.hash,
>  			 parents, oid.hash, author_ident.buf, sign_commit, extra)) {
>  		rollback_index_files();
>  		die(_("failed to write commit object"));
> diff --git a/builtin/fsck.c b/builtin/fsck.c
> index b5e13a455..c40e14de6 100644
> --- a/builtin/fsck.c
> +++ b/builtin/fsck.c
> @@ -599,10 +599,10 @@ static int fsck_cache_tree(struct cache_tree *it)
>  		fprintf(stderr, "Checking cache tree\n");
>  
>  	if (0 <= it->entry_count) {
> -		struct object *obj = parse_object(it->sha1);
> +		struct object *obj = parse_object(it->oid.hash);
>  		if (!obj) {
>  			error("%s: invalid sha1 pointer in cache-tree",
> -			      sha1_to_hex(it->sha1));
> +			      oid_to_hex(&it->oid));
>  			errors_found |= ERROR_REFS;
>  			return 1;
>  		}
> diff --git a/cache-tree.c b/cache-tree.c
> index 345ea3596..35d507ed7 100644
> --- a/cache-tree.c
> +++ b/cache-tree.c
> @@ -225,7 +225,7 @@ int cache_tree_fully_valid(struct cache_tree *it)
>  	int i;
>  	if (!it)
>  		return 0;
> -	if (it->entry_count < 0 || !has_sha1_file(it->sha1))
> +	if (it->entry_count < 0 || !has_sha1_file(it->oid.hash))
>  		return 0;
>  	for (i = 0; i < it->subtree_nr; i++) {
>  		if (!cache_tree_fully_valid(it->down[i]->cache_tree))
> @@ -253,7 +253,7 @@ static int update_one(struct cache_tree *it,
>  
>  	*skip_count = 0;
>  
> -	if (0 <= it->entry_count && has_sha1_file(it->sha1))
> +	if (0 <= it->entry_count && has_sha1_file(it->oid.hash))
>  		return it->entry_count;
>  
>  	/*
> @@ -340,7 +340,7 @@ static int update_one(struct cache_tree *it,
>  				die("cache-tree.c: '%.*s' in '%s' not found",
>  				    entlen, path + baselen, path);
>  			i += sub->count;
> -			sha1 = sub->cache_tree->sha1;
> +			sha1 = sub->cache_tree->oid.hash;
>  			mode = S_IFDIR;
>  			contains_ita = sub->cache_tree->entry_count < 0;
>  			if (contains_ita) {
> @@ -402,12 +402,13 @@ static int update_one(struct cache_tree *it,
>  		unsigned char sha1[20];
>  		hash_sha1_file(buffer.buf, buffer.len, tree_type, sha1);
>  		if (has_sha1_file(sha1))
> -			hashcpy(it->sha1, sha1);
> +			hashcpy(it->oid.hash, sha1);
>  		else
>  			to_invalidate = 1;
>  	} else if (dryrun)
> -		hash_sha1_file(buffer.buf, buffer.len, tree_type, it->sha1);
> -	else if (write_sha1_file(buffer.buf, buffer.len, tree_type, it->sha1)) {
> +		hash_sha1_file(buffer.buf, buffer.len, tree_type,
> +			       it->oid.hash);
> +	else if (write_sha1_file(buffer.buf, buffer.len, tree_type, it->oid.hash)) {
>  		strbuf_release(&buffer);
>  		return -1;
>  	}
> @@ -417,7 +418,7 @@ static int update_one(struct cache_tree *it,
>  #if DEBUG
>  	fprintf(stderr, "cache-tree update-one (%d ent, %d subtree) %s\n",
>  		it->entry_count, it->subtree_nr,
> -		sha1_to_hex(it->sha1));
> +		oid_to_hex(&it->oid));
>  #endif
>  	return i;
>  }
> @@ -457,14 +458,14 @@ static void write_one(struct strbuf *buffer, struct cache_tree *it,
>  	if (0 <= it->entry_count)
>  		fprintf(stderr, "cache-tree <%.*s> (%d ent, %d subtree) %s\n",
>  			pathlen, path, it->entry_count, it->subtree_nr,
> -			sha1_to_hex(it->sha1));
> +			oid_to_hex(&it->oid));
>  	else
>  		fprintf(stderr, "cache-tree <%.*s> (%d subtree) invalid\n",
>  			pathlen, path, it->subtree_nr);
>  #endif
>  
>  	if (0 <= it->entry_count) {
> -		strbuf_add(buffer, it->sha1, 20);
> +		strbuf_add(buffer, it->oid.hash, 20);

Should this 20 be converted to GIT_{SHA1,MAX}_RAWSZ?  I know this is a
generated patch so maybe this is addressed, or will be addressed later?

-- 
Brandon Williams



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