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/*
* Copyright (C) 2009-2012 the libgit2 contributors
*
* 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;
typedef struct {
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 *, const char *start, const char *end);
void (*free)(git_iterator *);
} git_iterator_callbacks;
struct git_iterator {
git_iterator_type_t type;
git_iterator_callbacks *cb;
git_repository *repo;
char *start;
char *end;
bool ignore_case;
};
extern int git_iterator_for_nothing(git_iterator **iter);
extern int git_iterator_for_tree_range(
git_iterator **iter, git_tree *tree,
const char *start, const char *end);
GIT_INLINE(int) git_iterator_for_tree(
git_iterator **iter, git_tree *tree)
{
return git_iterator_for_tree_range(iter, tree, NULL, NULL);
}
extern int git_iterator_for_index_range(
git_iterator **iter, git_index *index, const char *start, const char *end);
GIT_INLINE(int) git_iterator_for_index(
git_iterator **iter, git_index *index)
{
return git_iterator_for_index_range(iter, index, NULL, NULL);
}
extern int git_iterator_for_repo_index_range(
git_iterator **iter, git_repository *repo,
const char *start, const char *end);
GIT_INLINE(int) git_iterator_for_repo_index(
git_iterator **iter, git_repository *repo)
{
return git_iterator_for_repo_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);
}
/* Spool all iterator values, resort with alternative ignore_case value
* and replace callbacks with spoolandsort alternates.
*/
extern int git_iterator_spoolandsort_push(git_iterator *iter, bool ignore_case);
/* Restore original callbacks - not required in most circumstances */
extern void git_iterator_spoolandsort_pop(git_iterator *iter);
/* 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->cb->current(iter, entry);
}
GIT_INLINE(int) git_iterator_at_end(git_iterator *iter)
{
return iter->cb->at_end(iter);
}
GIT_INLINE(int) git_iterator_advance(
git_iterator *iter, const git_index_entry **entry)
{
return iter->cb->advance(iter, entry);
}
GIT_INLINE(int) git_iterator_seek(
git_iterator *iter, const char *prefix)
{
return iter->cb->seek(iter, prefix);
}
GIT_INLINE(int) git_iterator_reset(
git_iterator *iter, const char *start, const char *end)
{
return iter->cb->reset(iter, start, end);
}
GIT_INLINE(void) git_iterator_free(git_iterator *iter)
{
if (iter == NULL)
return;
iter->cb->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;
}
GIT_INLINE(git_repository *) git_iterator_owner(git_iterator *iter)
{
return iter->repo;
}
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);
extern git_index *git_iterator_index_get_index(git_iterator *iter);
extern git_iterator_type_t git_iterator_inner_type(git_iterator *iter);
#endif
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