diff options
Diffstat (limited to 'src/submodule.h')
| -rw-r--r-- | src/submodule.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/submodule.h b/src/submodule.h new file mode 100644 index 000000000..ba8e2518e --- /dev/null +++ b/src/submodule.h @@ -0,0 +1,102 @@ +/* + * Copyright (C) the libgit2 contributors. All rights reserved. + * + * 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_submodule_h__ +#define INCLUDE_submodule_h__ + +/* Notes: + * + * Submodule information can be in four places: the index, the config files + * (both .git/config and .gitmodules), the HEAD tree, and the working + * directory. + * + * In the index: + * - submodule is found by path + * - may be missing, present, or of the wrong type + * - will have an oid if present + * + * In the HEAD tree: + * - submodule is found by path + * - may be missing, present, or of the wrong type + * - will have an oid if present + * + * In the config files: + * - submodule is found by submodule "name" which is usually the path + * - may be missing or present + * - will have a name, path, url, and other properties + * + * In the working directory: + * - submodule is found by path + * - may be missing, an empty directory, a checked out directory, + * or of the wrong type + * - if checked out, will have a HEAD oid + * - if checked out, will have git history that can be used to compare oids + * - if checked out, may have modified files and/or untracked files + */ + +/** + * Description of submodule + * + * This record describes a submodule found in a repository. There should be + * an entry for every submodule found in the HEAD and index, and for every + * submodule described in .gitmodules. The fields are as follows: + * + * - `owner` is the git_repository containing this submodule + * - `name` is the name of the submodule from .gitmodules. + * - `path` is the path to the submodule from the repo root. It is almost + * always the same as `name`. + * - `url` is the url for the submodule. + * - `tree_oid` is the SHA1 for the submodule path in the repo HEAD. + * - `index_oid` is the SHA1 for the submodule recorded in the index. + * - `workdir_oid` is the SHA1 for the HEAD of the checked out submodule. + * - `update` is a git_submodule_update_t value - see gitmodules(5) update. + * - `ignore` is a git_submodule_ignore_t value - see gitmodules(5) ignore. + * - `fetch_recurse` is 0 or 1 - see gitmodules(5) fetchRecurseSubmodules. + * - `refcount` tracks how many hashmap entries there are for this submodule. + * It only comes into play if the name and path of the submodule differ. + * - `flags` is for internal use, tracking where this submodule has been + * found (head, index, config, workdir) and other misc info about it. + * + * If the submodule has been added to .gitmodules but not yet git added, + * then the `index_oid` will be valid and zero. If the submodule has been + * deleted, but the delete has not been committed yet, then the `index_oid` + * will be set, but the `url` will be NULL. + */ +struct git_submodule { + git_repository *owner; + char *name; + char *path; /* important: may point to same string data as "name" */ + char *url; + uint32_t flags; + git_oid head_oid; + git_oid index_oid; + git_oid wd_oid; + /* information from config */ + git_submodule_update_t update; + git_submodule_update_t update_default; + git_submodule_ignore_t ignore; + git_submodule_ignore_t ignore_default; + int fetch_recurse; + /* internal information */ + int refcount; +}; + +/* Additional flags on top of public GIT_SUBMODULE_STATUS values */ +enum { + GIT_SUBMODULE_STATUS__WD_SCANNED = (1u << 20), + GIT_SUBMODULE_STATUS__HEAD_OID_VALID = (1u << 21), + GIT_SUBMODULE_STATUS__INDEX_OID_VALID = (1u << 22), + GIT_SUBMODULE_STATUS__WD_OID_VALID = (1u << 23), + GIT_SUBMODULE_STATUS__HEAD_NOT_SUBMODULE = (1u << 24), + GIT_SUBMODULE_STATUS__INDEX_NOT_SUBMODULE = (1u << 25), + GIT_SUBMODULE_STATUS__WD_NOT_SUBMODULE = (1u << 26), + GIT_SUBMODULE_STATUS__INDEX_MULTIPLE_ENTRIES = (1u << 27), +}; + +#define GIT_SUBMODULE_STATUS__CLEAR_INTERNAL(S) \ + ((S) & ~(0xFFFFFFFFu << 20)) + +#endif |