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* This file is part of libgit2, distributed under the GNU GPL v2 with

* a Linking Exception. For full terms see the included COPYING file.

#ifndef INCLUDE_iterator_h__

#define INCLUDE_iterator_h__

#include "common.h"

#include "git2/index.h"

#include "vector.h"

#include "buffer.h"

#define ITERATOR_PREFIXCMP(ITER, STR, PREFIX) (((ITER).ignore_case) ? \

git__prefixcmp_icase((STR), (PREFIX)) : \

git__prefixcmp((STR), (PREFIX)))

typedef struct git_iterator git_iterator;

typedef enum {

GIT_ITERATOR_EMPTY = 0,

GIT_ITERATOR_TREE = 1,

GIT_ITERATOR_INDEX = 2,

GIT_ITERATOR_WORKDIR = 3,

GIT_ITERATOR_SPOOLANDSORT = 4

} git_iterator_type_t;

struct git_iterator {

git_iterator_type_t type;

char *start;

char *end;

int (*current)(git_iterator *, const git_index_entry **);

int (*at_end)(git_iterator *);

int (*advance)(git_iterator *, const git_index_entry **);

int (*seek)(git_iterator *, const char *prefix);

int (*reset)(git_iterator *);

void (*free)(git_iterator *);

unsigned int ignore_case:1;

};

extern int git_iterator_for_nothing(git_iterator **iter);

extern int git_iterator_for_tree_range(

git_iterator **iter, git_repository *repo, git_tree *tree,

const char *start, const char *end);

GIT_INLINE(int) git_iterator_for_tree(

git_iterator **iter, git_repository *repo, git_tree *tree)

{

return git_iterator_for_tree_range(iter, repo, tree, NULL, NULL);

}

extern int git_iterator_for_index_range(

git_iterator **iter, git_repository *repo,

const char *start, const char *end);

GIT_INLINE(int) git_iterator_for_index(

git_iterator **iter, git_repository *repo)

{

return git_iterator_for_index_range(iter, repo, NULL, NULL);

}

extern int git_iterator_for_workdir_range(

git_iterator **iter, git_repository *repo,

const char *start, const char *end);

GIT_INLINE(int) git_iterator_for_workdir(

git_iterator **iter, git_repository *repo)

{

return git_iterator_for_workdir_range(iter, repo, NULL, NULL);

}

extern int git_iterator_spoolandsort_range(

git_iterator **iter, git_iterator *towrap,

git_vector_cmp comparer, bool ignore_case,

const char *start, const char *end);

GIT_INLINE(int) git_iterator_spoolandsort(

git_iterator **iter, git_iterator *towrap,

git_vector_cmp comparer, bool ignore_case)

{

return git_iterator_spoolandsort_range(iter, towrap, comparer, ignore_case, NULL, NULL);

}

/* Entry is not guaranteed to be fully populated. For a tree iterator,

* we will only populate the mode, oid and path, for example. For a workdir

* iterator, we will not populate the oid.

* You do not need to free the entry. It is still "owned" by the iterator.

* Once you call `git_iterator_advance`, then content of the old entry is

* no longer guaranteed to be valid.

GIT_INLINE(int) git_iterator_current(

git_iterator *iter, const git_index_entry **entry)

{

return iter->current(iter, entry);

}

GIT_INLINE(int) git_iterator_at_end(git_iterator *iter)

{

return iter->at_end(iter);

}

GIT_INLINE(int) git_iterator_advance(

git_iterator *iter, const git_index_entry **entry)

{

return iter->advance(iter, entry);

}

GIT_INLINE(int) git_iterator_seek(

git_iterator *iter, const char *prefix)

{

return iter->seek(iter, prefix);

}

GIT_INLINE(int) git_iterator_reset(git_iterator *iter)

{

return iter->reset(iter);

}

GIT_INLINE(void) git_iterator_free(git_iterator *iter)

{

if (iter == NULL)

return;

iter->free(iter);

git__free(iter->start);

git__free(iter->end);

memset(iter, 0, sizeof(*iter));

git__free(iter);

}

GIT_INLINE(git_iterator_type_t) git_iterator_type(git_iterator *iter)

{

return iter->type;

}

extern int git_iterator_current_tree_entry(

git_iterator *iter, const git_tree_entry **tree_entry);

extern int git_iterator_current_parent_tree(

git_iterator *iter, const char *parent_path, const git_tree **tree_ptr);

extern int git_iterator_current_is_ignored(git_iterator *iter);

/**

* Iterate into a workdir directory.

* Workdir iterators do not automatically descend into directories (so that

* when comparing two iterator entries you can detect a newly created

* directory in the workdir). As a result, you may get S_ISDIR items from

* a workdir iterator. If you wish to iterate over the contents of the

* directories you encounter, then call this function when you encounter

* a directory.

* If there are no files in the directory, this will end up acting like a

* regular advance and will skip past the directory, so you should be

* prepared for that case.

* On non-workdir iterators or if not pointing at a directory, this is a

* no-op and will not advance the iterator.

extern int git_iterator_advance_into_directory(

git_iterator *iter, const git_index_entry **entry);

extern int git_iterator_cmp(

git_iterator *iter, const char *path_prefix);

/**

* Get the full path of the current item from a workdir iterator.

* This will return NULL for a non-workdir iterator.

extern int git_iterator_current_workdir_path(

git_iterator *iter, git_buf **path);

#endif

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