diff options
Diffstat (limited to 'src/fileops.c')
-rw-r--r-- | src/fileops.c | 303 |
1 files changed, 44 insertions, 259 deletions
diff --git a/src/fileops.c b/src/fileops.c index 5763b370b..bebbae4f9 100644 --- a/src/fileops.c +++ b/src/fileops.c @@ -132,6 +132,7 @@ int git_futils_readbuffer_fd(git_buf *buf, git_file fd, size_t len) if (read_size != (ssize_t)len) { giterr_set(GITERR_OS, "Failed to read descriptor"); + git_buf_free(buf); return -1; } @@ -403,7 +404,6 @@ typedef struct { const char *base; size_t baselen; uint32_t flags; - int error; int depth; } futils__rmdir_data; @@ -447,8 +447,8 @@ static int futils__rm_first_parent(git_buf *path, const char *ceiling) static int futils__rmdir_recurs_foreach(void *opaque, git_buf *path) { + int error = 0; futils__rmdir_data *data = opaque; - int error = data->error; struct stat st; if (data->depth > FUTILS_MAX_DEPTH) @@ -474,13 +474,14 @@ static int futils__rmdir_recurs_foreach(void *opaque, git_buf *path) data->depth++; error = git_path_direach(path, 0, futils__rmdir_recurs_foreach, data); - if (error < 0) - return (error == GIT_EUSER) ? data->error : error; data->depth--; + if (error < 0) + return error; + if (data->depth == 0 && (data->flags & GIT_RMDIR_SKIP_ROOT) != 0) - return data->error; + return error; if ((error = p_rmdir(path->ptr)) < 0) { if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) != 0 && @@ -499,28 +500,23 @@ static int futils__rmdir_recurs_foreach(void *opaque, git_buf *path) else if ((data->flags & GIT_RMDIR_SKIP_NONEMPTY) == 0) error = futils__error_cannot_rmdir(path->ptr, "still present"); - data->error = error; return error; } static int futils__rmdir_empty_parent(void *opaque, git_buf *path) { futils__rmdir_data *data = opaque; - int error; + int error = 0; if (git_buf_len(path) <= data->baselen) - return GIT_ITEROVER; - - error = p_rmdir(git_buf_cstr(path)); + error = GIT_ITEROVER; - if (error) { + else if (p_rmdir(git_buf_cstr(path)) < 0) { int en = errno; if (en == ENOENT || en == ENOTDIR) { - giterr_clear(); - error = 0; + /* do nothing */ } else if (en == ENOTEMPTY || en == EEXIST || en == EBUSY) { - giterr_clear(); error = GIT_ITEROVER; } else { error = git_path_set_error(errno, git_buf_cstr(path), "rmdir"); @@ -535,12 +531,13 @@ int git_futils_rmdir_r( { int error; git_buf fullpath = GIT_BUF_INIT; - futils__rmdir_data data = { 0 }; + futils__rmdir_data data; /* build path and find "root" where we should start calling mkdir */ if (git_path_join_unrooted(&fullpath, path, base, NULL) < 0) return -1; + memset(&data, 0, sizeof(data)); data.base = base ? base : ""; data.baselen = base ? strlen(base) : 0; data.flags = flags; @@ -548,12 +545,13 @@ int git_futils_rmdir_r( error = futils__rmdir_recurs_foreach(&data, &fullpath); /* remove now-empty parents if requested */ - if (!error && (flags & GIT_RMDIR_EMPTY_PARENTS) != 0) { + if (!error && (flags & GIT_RMDIR_EMPTY_PARENTS) != 0) error = git_path_walk_up( &fullpath, base, futils__rmdir_empty_parent, &data); - if (error == GIT_ITEROVER) - error = 0; + if (error == GIT_ITEROVER) { + giterr_clear(); + error = 0; } git_buf_free(&fullpath); @@ -561,219 +559,6 @@ int git_futils_rmdir_r( return error; } - -static int git_futils_guess_system_dirs(git_buf *out) -{ -#ifdef GIT_WIN32 - return git_win32__find_system_dirs(out, L"etc\\"); -#else - return git_buf_sets(out, "/etc"); -#endif -} - -static int git_futils_guess_global_dirs(git_buf *out) -{ -#ifdef GIT_WIN32 - return git_win32__find_global_dirs(out); -#else - return git_buf_sets(out, getenv("HOME")); -#endif -} - -static int git_futils_guess_xdg_dirs(git_buf *out) -{ -#ifdef GIT_WIN32 - return git_win32__find_xdg_dirs(out); -#else - const char *env = NULL; - - if ((env = getenv("XDG_CONFIG_HOME")) != NULL) - return git_buf_joinpath(out, env, "git"); - else if ((env = getenv("HOME")) != NULL) - return git_buf_joinpath(out, env, ".config/git"); - - git_buf_clear(out); - return 0; -#endif -} - -static int git_futils_guess_template_dirs(git_buf *out) -{ -#ifdef GIT_WIN32 - return git_win32__find_system_dirs(out, L"share\\git-core\\templates"); -#else - return git_buf_sets(out, "/usr/share/git-core/templates"); -#endif -} - -typedef int (*git_futils_dirs_guess_cb)(git_buf *out); - -static git_buf git_futils__dirs[GIT_FUTILS_DIR__MAX] = - { GIT_BUF_INIT, GIT_BUF_INIT, GIT_BUF_INIT, GIT_BUF_INIT }; - -static git_futils_dirs_guess_cb git_futils__dir_guess[GIT_FUTILS_DIR__MAX] = { - git_futils_guess_system_dirs, - git_futils_guess_global_dirs, - git_futils_guess_xdg_dirs, - git_futils_guess_template_dirs, -}; - -void git_futils_dirs_global_shutdown(void) -{ - int i; - for (i = 0; i < GIT_FUTILS_DIR__MAX; ++i) - git_buf_free(&git_futils__dirs[i]); -} - -int git_futils_dirs_global_init(void) -{ - git_futils_dir_t i; - const git_buf *path; - int error = 0; - - for (i = 0; !error && i < GIT_FUTILS_DIR__MAX; i++) - error = git_futils_dirs_get(&path, i); - - git__on_shutdown(git_futils_dirs_global_shutdown); - - return error; -} - -static int git_futils_check_selector(git_futils_dir_t which) -{ - if (which < GIT_FUTILS_DIR__MAX) - return 0; - giterr_set(GITERR_INVALID, "config directory selector out of range"); - return -1; -} - -int git_futils_dirs_get(const git_buf **out, git_futils_dir_t which) -{ - assert(out); - - *out = NULL; - - GITERR_CHECK_ERROR(git_futils_check_selector(which)); - - if (!git_buf_len(&git_futils__dirs[which])) - GITERR_CHECK_ERROR( - git_futils__dir_guess[which](&git_futils__dirs[which])); - - *out = &git_futils__dirs[which]; - return 0; -} - -int git_futils_dirs_get_str(char *out, size_t outlen, git_futils_dir_t which) -{ - const git_buf *path = NULL; - - GITERR_CHECK_ERROR(git_futils_check_selector(which)); - GITERR_CHECK_ERROR(git_futils_dirs_get(&path, which)); - - if (!out || path->size >= outlen) { - giterr_set(GITERR_NOMEMORY, "Buffer is too short for the path"); - return GIT_EBUFS; - } - - git_buf_copy_cstr(out, outlen, path); - return 0; -} - -#define PATH_MAGIC "$PATH" - -int git_futils_dirs_set(git_futils_dir_t which, const char *search_path) -{ - const char *expand_path = NULL; - git_buf merge = GIT_BUF_INIT; - - GITERR_CHECK_ERROR(git_futils_check_selector(which)); - - if (search_path != NULL) - expand_path = strstr(search_path, PATH_MAGIC); - - /* init with default if not yet done and needed (ignoring error) */ - if ((!search_path || expand_path) && - !git_buf_len(&git_futils__dirs[which])) - git_futils__dir_guess[which](&git_futils__dirs[which]); - - /* if $PATH is not referenced, then just set the path */ - if (!expand_path) - return git_buf_sets(&git_futils__dirs[which], search_path); - - /* otherwise set to join(before $PATH, old value, after $PATH) */ - if (expand_path > search_path) - git_buf_set(&merge, search_path, expand_path - search_path); - - if (git_buf_len(&git_futils__dirs[which])) - git_buf_join(&merge, GIT_PATH_LIST_SEPARATOR, - merge.ptr, git_futils__dirs[which].ptr); - - expand_path += strlen(PATH_MAGIC); - if (*expand_path) - git_buf_join(&merge, GIT_PATH_LIST_SEPARATOR, merge.ptr, expand_path); - - git_buf_swap(&git_futils__dirs[which], &merge); - git_buf_free(&merge); - - return git_buf_oom(&git_futils__dirs[which]) ? -1 : 0; -} - -static int git_futils_find_in_dirlist( - git_buf *path, const char *name, git_futils_dir_t which, const char *label) -{ - size_t len; - const char *scan, *next = NULL; - const git_buf *syspath; - - GITERR_CHECK_ERROR(git_futils_dirs_get(&syspath, which)); - - for (scan = git_buf_cstr(syspath); scan; scan = next) { - for (next = strchr(scan, GIT_PATH_LIST_SEPARATOR); - next && next > scan && next[-1] == '\\'; - next = strchr(next + 1, GIT_PATH_LIST_SEPARATOR)) - /* find unescaped separator or end of string */; - - len = next ? (size_t)(next++ - scan) : strlen(scan); - if (!len) - continue; - - GITERR_CHECK_ERROR(git_buf_set(path, scan, len)); - if (name) - GITERR_CHECK_ERROR(git_buf_joinpath(path, path->ptr, name)); - - if (git_path_exists(path->ptr)) - return 0; - } - - git_buf_clear(path); - giterr_set(GITERR_OS, "The %s file '%s' doesn't exist", label, name); - return GIT_ENOTFOUND; -} - -int git_futils_find_system_file(git_buf *path, const char *filename) -{ - return git_futils_find_in_dirlist( - path, filename, GIT_FUTILS_DIR_SYSTEM, "system"); -} - -int git_futils_find_global_file(git_buf *path, const char *filename) -{ - return git_futils_find_in_dirlist( - path, filename, GIT_FUTILS_DIR_GLOBAL, "global"); -} - -int git_futils_find_xdg_file(git_buf *path, const char *filename) -{ - return git_futils_find_in_dirlist( - path, filename, GIT_FUTILS_DIR_XDG, "global/xdg"); -} - -int git_futils_find_template_dir(git_buf *path) -{ - return git_futils_find_in_dirlist( - path, NULL, GIT_FUTILS_DIR_TEMPLATE, "template"); -} - int git_futils_fake_symlink(const char *old, const char *new) { int retcode = GIT_ERROR; @@ -858,7 +643,6 @@ typedef struct { uint32_t flags; uint32_t mkdir_flags; mode_t dirmode; - int error; } cp_r_info; #define GIT_CPDIR__MKDIR_DONE_FOR_TO_ROOT (1u << 10) @@ -896,23 +680,21 @@ static int _cp_r_callback(void *ref, git_buf *from) from->ptr[git_path_basename_offset(from)] == '.') return 0; - if (git_buf_joinpath( - &info->to, info->to_root, from->ptr + info->from_prefix) < 0) { - error = -1; - goto exit; - } + if ((error = git_buf_joinpath( + &info->to, info->to_root, from->ptr + info->from_prefix)) < 0) + return error; if (!(error = git_path_lstat(info->to.ptr, &to_st))) exists = true; else if (error != GIT_ENOTFOUND) - goto exit; + return error; else { giterr_clear(); error = 0; } if ((error = git_path_lstat(from->ptr, &from_st)) < 0) - goto exit; + return error; if (S_ISDIR(from_st.st_mode)) { mode_t oldmode = info->dirmode; @@ -926,17 +708,13 @@ static int _cp_r_callback(void *ref, git_buf *from) error = _cp_r_mkdir(info, from); /* recurse onto target directory */ - if (!error && (!exists || S_ISDIR(to_st.st_mode))) { + if (!error && (!exists || S_ISDIR(to_st.st_mode))) error = git_path_direach(from, 0, _cp_r_callback, info); - if (error == GIT_EUSER) - error = info->error; - } - if (oldmode != 0) info->dirmode = oldmode; - goto exit; + return error; } if (exists) { @@ -946,8 +724,7 @@ static int _cp_r_callback(void *ref, git_buf *from) if (p_unlink(info->to.ptr) < 0) { giterr_set(GITERR_OS, "Cannot overwrite existing file '%s'", info->to.ptr); - error = -1; - goto exit; + return GIT_EEXISTS; } } @@ -960,12 +737,14 @@ static int _cp_r_callback(void *ref, git_buf *from) /* Make container directory on demand if needed */ if ((info->flags & GIT_CPDIR_CREATE_EMPTY_DIRS) == 0 && (error = _cp_r_mkdir(info, from)) < 0) - goto exit; + return error; /* make symlink or regular file */ - if (S_ISLNK(from_st.st_mode)) + if (info->flags & GIT_CPDIR_LINK_FILES) { + error = p_link(from->ptr, info->to.ptr); + } else if (S_ISLNK(from_st.st_mode)) { error = cp_link(from->ptr, info->to.ptr, (size_t)from_st.st_size); - else { + } else { mode_t usemode = from_st.st_mode; if ((info->flags & GIT_CPDIR_SIMPLE_TO_MODE) != 0) @@ -974,8 +753,6 @@ static int _cp_r_callback(void *ref, git_buf *from) error = git_futils_cp(from->ptr, info->to.ptr, usemode); } -exit: - info->error = error; return error; } @@ -992,11 +769,11 @@ int git_futils_cp_r( if (git_buf_joinpath(&path, from, "") < 0) /* ensure trailing slash */ return -1; + memset(&info, 0, sizeof(info)); info.to_root = to; info.flags = flags; info.dirmode = dirmode; info.from_prefix = path.size; - info.error = 0; git_buf_init(&info.to, 0); /* precalculate mkdir flags */ @@ -1018,9 +795,6 @@ int git_futils_cp_r( git_buf_free(&path); git_buf_free(&info.to); - if (error == GIT_EUSER) - error = info.error; - return error; } @@ -1033,10 +807,8 @@ int git_futils_filestamp_check( if (stamp == NULL) return 1; - if (p_stat(path, &st) < 0) { - giterr_set(GITERR_OS, "Could not stat '%s'", path); + if (p_stat(path, &st) < 0) return GIT_ENOTFOUND; - } if (stamp->mtime == (git_time_t)st.st_mtime && stamp->size == (git_off_t)st.st_size && @@ -1060,3 +832,16 @@ void git_futils_filestamp_set( else memset(target, 0, sizeof(*target)); } + + +void git_futils_filestamp_set_from_stat( + git_futils_filestamp *stamp, struct stat *st) +{ + if (st) { + stamp->mtime = (git_time_t)st->st_mtime; + stamp->size = (git_off_t)st->st_size; + stamp->ino = (unsigned int)st->st_ino; + } else { + memset(stamp, 0, sizeof(*stamp)); + } +} |