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vcs-svn: introduce repo_read_path to check the content at a path

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The repo_tree structure remembers, for each path in each revision, a
mode (regular file, executable, symlink, or directory) and content
(blob mark or directory structure).  Maintaining a second copy of all
this information when it's already in the target repository is
wasteful, it does not persist between svn-fe invocations, and most
importantly, there is no convenient way to transfer it from one
machine to another.  So it would be nice to get rid of it.

As a first step, let's change the repo_tree API to match fast-import's
read commands more closely.  Currently to read the mode for a path,
one uses

	repo_modify_path(path, new_mode, new_content);

which changes the mode and content as a side effect.  There is no
function to read the content at a path; add one.

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>
This commit is contained in:
Jonathan Nieder
2010-11-20 13:25:28 -06:00
parent 6288e3e180
commit 4f5de755a7
2 changed files with 12 additions and 1 deletions
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vcs-svn/repo_tree.h
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@ -15,6 +15,7 @@ uint32_t next_blob_mark(void);
uint32_t repo_copy(uint32_t revision, uint32_t *src, 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);
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);