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https://git.proxmox.com/git/libgit2
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58206c9ae7
This adds an example implementation that emulates git cat-file. It is a convenient and relatively simple example of getting data out of a repository. Implementing this also revealed that there are a number of APIs that are still not using const pointers to objects that really ought to be. The main cause of this is that `git_vector_bsearch` may need to call `git_vector_sort` before doing the search, so a const pointer to the vector is not allowed. However, for tree objects, with a little care, we can ensure that the vector of tree entries is always sorted and allow lookups to take a const pointer. Also, the missing const in commit objects just looks like an oversight.
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* Copyright (C) the libgit2 contributors. All rights reserved.
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*
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* This file is part of libgit2, distributed under the GNU GPL v2 with
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* a Linking Exception. For full terms see the included COPYING file.
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*/
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#ifndef INCLUDE_tree_h__
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#define INCLUDE_tree_h__
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#include "git2/tree.h"
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#include "repository.h"
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#include "odb.h"
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#include "vector.h"
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struct git_tree_entry {
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uint16_t removed;
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uint16_t attr;
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git_oid oid;
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size_t filename_len;
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char filename[1];
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};
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struct git_tree {
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git_object object;
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git_vector entries;
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};
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struct git_treebuilder {
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git_vector entries;
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size_t entrycount; /* vector may contain "removed" entries */
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};
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GIT_INLINE(bool) git_tree_entry__is_tree(const struct git_tree_entry *e)
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{
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return (S_ISDIR(e->attr) && !S_ISGITLINK(e->attr));
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}
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extern int git_tree_entry_icmp(const git_tree_entry *e1, const git_tree_entry *e2);
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void git_tree__free(void *tree);
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int git_tree__parse(void *tree, git_odb_object *obj);
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/**
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* Lookup the first position in the tree with a given prefix.
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*
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* @param tree a previously loaded tree.
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* @param prefix the beginning of a path to find in the tree.
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* @return index of the first item at or after the given prefix.
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*/
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int git_tree__prefix_position(const git_tree *tree, const char *prefix);
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/**
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* Write a tree to the given repository
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*/
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int git_tree__write_index(
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git_oid *oid, git_index *index, git_repository *repo);
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/**
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* Obsolete mode kept for compatibility reasons
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*/
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#define GIT_FILEMODE_BLOB_GROUP_WRITABLE 0100664
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#endif
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