thodg/got/lib/got_lib_fileindex.h
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Hash : 62da3196
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Date : 2021-10-01T13:58:31
skip ignored directories during 'got status' disk crawl
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lib/got_lib_fileindex.h
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/* * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org> * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above * copyright notice and this permission notice appear in all copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ /* * State information for a tracked file in a work tree. * When written to disk, multi-byte fields are written in big-endian. * Some fields are based on results from stat(2). These are only used in * order to detect modifications made to on-disk files, they are never * applied back to the filesystem. */ struct got_fileindex_entry { RB_ENTRY(got_fileindex_entry) entry; uint64_t ctime_sec; uint64_t ctime_nsec; uint64_t mtime_sec; uint64_t mtime_nsec; uint32_t uid; uint32_t gid; /* * On-disk size is truncated to the lower 32 bits. * The value is only used to check for modifications anyway. */ uint32_t size; uint16_t mode; #define GOT_FILEIDX_MODE_FILE_TYPE 0x000f #define GOT_FILEIDX_MODE_FILE_TYPE_ONDISK 0x0003 #define GOT_FILEIDX_MODE_FILE_TYPE_STAGED 0x000c #define GOT_FILEIDX_MODE_FILE_TYPE_STAGED_SHIFT 2 #define GOT_FILEIDX_MODE_REGULAR_FILE 1 #define GOT_FILEIDX_MODE_SYMLINK 2 #define GOT_FILEIDX_MODE_BAD_SYMLINK 3 #define GOT_FILEIDX_MODE_PERMS 0xfff0 #define GOT_FILEIDX_MODE_PERMS_SHIFT 4 /* SHA1 of corresponding blob in repository. */ uint8_t blob_sha1[SHA1_DIGEST_LENGTH]; /* SHA1 of corresponding base commit in repository. */ uint8_t commit_sha1[SHA1_DIGEST_LENGTH]; uint32_t flags; /* * UNIX-style path, relative to work tree root. * Variable length, and NUL-padded to a multiple of 8 on disk. */ char *path; /* * (since GOT_FILE_INDEX_VERSION 2) * SHA1 of staged blob in repository if stage equals either * GOT_FILEIDX_STAGE_MODIFY or GOT_FILEIDX_STAGE_ADD. * Otherwise, this field is not written to disk. */ uint8_t staged_blob_sha1[SHA1_DIGEST_LENGTH]; }; /* Modifications explicitly staged for commit. */ #define GOT_FILEIDX_STAGE_NONE 0 #define GOT_FILEIDX_STAGE_MODIFY 1 #define GOT_FILEIDX_STAGE_ADD 2 #define GOT_FILEIDX_STAGE_DELETE 3 struct got_fileindex; RB_HEAD(got_fileindex_tree, got_fileindex_entry); size_t got_fileindex_entry_path_len(const struct got_fileindex_entry *); static inline int got_fileindex_cmp(const struct got_fileindex_entry *e1, const struct got_fileindex_entry *e2) { return got_path_cmp(e1->path, e2->path, got_fileindex_entry_path_len(e1), got_fileindex_entry_path_len(e2)); } RB_PROTOTYPE(got_fileindex_tree, got_fileindex_entry, entry, got_fileindex_cmp); /* On-disk file index header structure. */ struct got_fileindex_hdr { uint32_t signature; /* big-endian */ #define GOT_FILE_INDEX_SIGNATURE 0x676f7449 /* 'g', 'o', 't', 'I' */ uint32_t version; /* big-endian */ #define GOT_FILE_INDEX_VERSION 2 uint32_t nentries; /* big-endian */ /* list of concatenated fileindex entries */ uint8_t sha1[SHA1_DIGEST_LENGTH]; /* checksum of above on-disk data */ }; mode_t got_fileindex_entry_perms_get(struct got_fileindex_entry *); uint16_t got_fileindex_perms_from_st(struct stat *); mode_t got_fileindex_perms_to_st(struct got_fileindex_entry *); const struct got_error *got_fileindex_entry_update(struct got_fileindex_entry *, int, const char *, uint8_t *, uint8_t *, int); void got_fileindex_entry_mark_skipped(struct got_fileindex_entry *); const struct got_error *got_fileindex_entry_alloc(struct got_fileindex_entry **, const char *); void got_fileindex_entry_free(struct got_fileindex_entry *); struct got_fileindex *got_fileindex_alloc(void); void got_fileindex_free(struct got_fileindex *); const struct got_error *got_fileindex_write(struct got_fileindex *, FILE *); const struct got_error *got_fileindex_entry_add(struct got_fileindex *, struct got_fileindex_entry *); void got_fileindex_entry_remove(struct got_fileindex *, struct got_fileindex_entry *); struct got_fileindex_entry *got_fileindex_entry_get(struct got_fileindex *, const char *, size_t); const struct got_error *got_fileindex_read(struct got_fileindex *, FILE *); typedef const struct got_error *(*got_fileindex_cb)(void *, struct got_fileindex_entry *); const struct got_error *got_fileindex_for_each_entry_safe( struct got_fileindex *, got_fileindex_cb cb, void *); typedef const struct got_error *(*got_fileindex_diff_tree_old_new_cb)(void *, struct got_fileindex_entry *, struct got_tree_entry *, const char *); typedef const struct got_error *(*got_fileindex_diff_tree_old_cb)(void *, struct got_fileindex_entry *, const char *); typedef const struct got_error *(*got_fileindex_diff_tree_new_cb)(void *, struct got_tree_entry *, const char *); struct got_fileindex_diff_tree_cb { got_fileindex_diff_tree_old_new_cb diff_old_new; got_fileindex_diff_tree_old_cb diff_old; got_fileindex_diff_tree_new_cb diff_new; }; const struct got_error *got_fileindex_diff_tree(struct got_fileindex *, struct got_tree_object *, const char *, const char *, struct got_repository *, struct got_fileindex_diff_tree_cb *, void *); typedef const struct got_error *(*got_fileindex_diff_dir_old_new_cb)(void *, struct got_fileindex_entry *, struct dirent *, const char *, int); typedef const struct got_error *(*got_fileindex_diff_dir_old_cb)(void *, struct got_fileindex_entry *, const char *); typedef const struct got_error *(*got_fileindex_diff_dir_new_cb)(int *, void *, struct dirent *, const char *, int); typedef const struct got_error *(*got_fileindex_diff_dir_traverse)(void *, const char *, int); struct got_fileindex_diff_dir_cb { got_fileindex_diff_dir_old_new_cb diff_old_new; got_fileindex_diff_dir_old_cb diff_old; got_fileindex_diff_dir_new_cb diff_new; got_fileindex_diff_dir_traverse diff_traverse; }; const struct got_error *got_fileindex_diff_dir(struct got_fileindex *, int, const char *, const char *, struct got_repository *, struct got_fileindex_diff_dir_cb *, void *); int got_fileindex_entry_has_blob(struct got_fileindex_entry *); int got_fileindex_entry_has_commit(struct got_fileindex_entry *); int got_fileindex_entry_has_file_on_disk(struct got_fileindex_entry *); int got_fileindex_entry_was_skipped(struct got_fileindex_entry *); uint32_t got_fileindex_entry_stage_get(const struct got_fileindex_entry *); void got_fileindex_entry_stage_set(struct got_fileindex_entry *ie, uint32_t); int got_fileindex_entry_filetype_get(struct got_fileindex_entry *); void got_fileindex_entry_filetype_set(struct got_fileindex_entry *, int); void got_fileindex_entry_staged_filetype_set(struct got_fileindex_entry *, int); int got_fileindex_entry_staged_filetype_get(struct got_fileindex_entry *); void got_fileindex_entry_mark_deleted_from_disk(struct got_fileindex_entry *);