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Diff iterators

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This refactors the diff output code so that an iterator object
can be used to traverse and generate the diffs, instead of just
the `foreach()` style with callbacks.  The code has been rearranged
so that the two styles can still share most functions.

This also replaces `GIT_REVWALKOVER` with `GIT_ITEROVER` and uses
that as a common error code for marking the end of iteration when
using a iterator style of object.
This commit is contained in:
Russell Belfer
2012-08-30 14:24:16 -07:00
parent 4d3834038b
commit f335ecd6e1
25 changed files with 1492 additions and 578 deletions
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include/git2/revwalk.h
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@@ -201,7 +201,7 @@ GIT_EXTERN(int) git_revwalk_hide_ref(git_revwalk *walk, const char *refname);
* @param oid Pointer where to store the oid of the next commit
* @param walk the walker to pop the commit from.
* @return 0 if the next commit was found;
* GIT_REVWALKOVER if there are no commits left to iterate
* GIT_ITEROVER if there are no commits left to iterate
*/
GIT_EXTERN(int) git_revwalk_next(git_oid *oid, git_revwalk *walk);