diff options
Diffstat (limited to 'c_src/cmd_format.c')
| -rw-r--r-- | c_src/cmd_format.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/c_src/cmd_format.c b/c_src/cmd_format.c index 4bafa171..d0c8e197 100644 --- a/c_src/cmd_format.c +++ b/c_src/cmd_format.c @@ -21,6 +21,7 @@ #include <uuid/uuid.h> #include "cmds.h" +#include "posix_to_bcachefs.h" #include "libbcachefs.h" #include "crypto.h" #include "libbcachefs/errcode.h" @@ -45,6 +46,7 @@ x(0, data_allowed, required_argument) \ x(0, durability, required_argument) \ x(0, version, required_argument) \ x(0, no_initialize, no_argument) \ +x(0, source, required_argument) \ x('f', force, no_argument) \ x('q', quiet, no_argument) \ x('v', verbose, no_argument) \ @@ -66,6 +68,7 @@ static void usage(void) " -L, --fs_label=label\n" " -U, --uuid=uuid\n" " --superblock_size=size\n" + " --source=path Initialize the bcachefs filesystem from this root directory\n" "\n" "Device specific options:"); @@ -113,6 +116,18 @@ u64 read_flag_list_or_die(char *opt, const char * const list[], return v; } +void build_fs(struct bch_fs *c, const char *src_path) +{ + struct copy_fs_state s = {}; + int src_fd = xopen(src_path, O_RDONLY|O_NOATIME); + struct stat stat = xfstat(src_fd); + + if (!S_ISDIR(stat.st_mode)) + die("%s is not a directory", src_path); + + copy_fs(c, src_fd, src_path, &s); +} + int cmd_format(int argc, char *argv[]) { DARRAY(struct dev_opts) devices = { 0 }; @@ -145,6 +160,9 @@ int cmd_format(int argc, char *argv[]) opt_set(fs_opts, metadata_replicas, v); opt_set(fs_opts, data_replicas, v); break; + case O_source: + opts.source = optarg; + break; case O_encrypted: opts.encrypted = true; break; @@ -277,6 +295,12 @@ int cmd_format(int argc, char *argv[]) darray_exit(&devices); + /* don't skip initialization when we have to build an image from a source */ + if (opts.source && !initialize) { + printf("Warning: Forcing the initialization because the source flag was supplied\n"); + initialize = 1; + } + if (initialize) { struct bch_opts mount_opts = bch2_opts_empty(); @@ -294,6 +318,11 @@ int cmd_format(int argc, char *argv[]) die("error opening %s: %s", device_paths.data[0], bch2_err_str(PTR_ERR(c))); + if (opts.source) { + build_fs(c, opts.source); + } + + bch2_fs_stop(c); } |