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vcs-svn: simplify repo_modify_path and repo_copy
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Restrict the repo_tree API to functions that are actually needed.

 - decouple reading the mode and content of dirents from other
   operations.
 - remove repo_modify_path.  It is only used to read the mode from
   dirents.
 - remove the ability to use repo_read_mode on a missing path.  The
   existing code only errors out in that case, anyway.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: David Barr <david.barr@cordelta.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
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Jonathan Nieder committed Mar 7, 2011
1 parent 5a38b18 commit e75316d
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Showing 3 changed files with 13 additions and 22 deletions.
27 changes: 10 additions & 17 deletions vcs-svn/repo_tree.c
Original file line number Diff line number Diff line change
Expand Up @@ -106,7 +106,7 @@ static struct repo_dirent *repo_read_dirent(uint32_t revision,
return dent;
}

static void repo_write_dirent(uint32_t *path, uint32_t mode,
static void repo_write_dirent(const uint32_t *path, uint32_t mode,
uint32_t content_offset, uint32_t del)
{
uint32_t name, revision, dir_o = ~0, parent_dir_o = ~0;
Expand Down Expand Up @@ -167,7 +167,15 @@ uint32_t repo_read_path(const uint32_t *path)
return content_offset;
}

uint32_t repo_copy(uint32_t revision, uint32_t *src, uint32_t *dst)
uint32_t repo_read_mode(const uint32_t *path)
{
struct repo_dirent *dent = repo_read_dirent(active_commit, path);
if (dent == NULL)
die("invalid dump: path to be modified is missing");
return dent->mode;
}

void repo_copy(uint32_t revision, const uint32_t *src, const uint32_t *dst)
{
uint32_t mode = 0, content_offset = 0;
struct repo_dirent *src_dent;
Expand All @@ -177,28 +185,13 @@ uint32_t repo_copy(uint32_t revision, uint32_t *src, uint32_t *dst)
content_offset = src_dent->content_offset;
repo_write_dirent(dst, mode, content_offset, 0);
}
return mode;
}

void repo_add(uint32_t *path, uint32_t mode, uint32_t blob_mark)
{
repo_write_dirent(path, mode, blob_mark, 0);
}

uint32_t repo_modify_path(uint32_t *path, uint32_t mode, uint32_t blob_mark)
{
struct repo_dirent *src_dent;
src_dent = repo_read_dirent(active_commit, path);
if (!src_dent)
return 0;
if (!blob_mark)
blob_mark = src_dent->content_offset;
if (!mode)
mode = src_dent->mode;
repo_write_dirent(path, mode, blob_mark, 0);
return mode;
}

void repo_delete(uint32_t *path)
{
repo_write_dirent(path, 0, 0, 1);
Expand Down
4 changes: 2 additions & 2 deletions vcs-svn/repo_tree.h
Original file line number Diff line number Diff line change
Expand Up @@ -12,10 +12,10 @@
#define REPO_MAX_PATH_DEPTH 1000

uint32_t next_blob_mark(void);
uint32_t repo_copy(uint32_t revision, uint32_t *src, uint32_t *dst);
void repo_copy(uint32_t revision, const uint32_t *src, const uint32_t *dst);
void repo_add(uint32_t *path, uint32_t mode, uint32_t blob_mark);
uint32_t repo_modify_path(uint32_t *path, uint32_t mode, uint32_t blob_mark);
uint32_t repo_read_path(const uint32_t *path);
uint32_t repo_read_mode(const uint32_t *path);
void repo_delete(uint32_t *path);
void repo_commit(uint32_t revision, uint32_t author, char *log, uint32_t uuid,
uint32_t url, long unsigned timestamp);
Expand Down
4 changes: 1 addition & 3 deletions vcs-svn/svndump.c
Original file line number Diff line number Diff line change
Expand Up @@ -235,9 +235,7 @@ static void handle_node(void)
uint32_t mode;
if (!have_text)
mark = repo_read_path(node_ctx.dst);
mode = repo_modify_path(node_ctx.dst, 0, 0);
if (!mode)
die("invalid dump: path to be modified is missing");
mode = repo_read_mode(node_ctx.dst);
if (mode == REPO_MODE_DIR && type != REPO_MODE_DIR)
die("invalid dump: cannot modify a directory into a file");
if (mode != REPO_MODE_DIR && type == REPO_MODE_DIR)
Expand Down

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