The bcachefs sub-commands that are implemented in Rust (completions,
list, and mount) had separate entrypoints and thus had some differences
in behavior.
This introduces a common entry point for the Rust sub-commands. This
reduces duplicate boilerplate code like parsing argv and setting up
logging, and will facilitate converting more sub-commands to Rust in
the future.
An immediate benefit is that this fixes an issue with `bcachefs list`
not reporting errors:
before:
$ bcachefs list /dev/typo
$ echo $?
0
after:
$ bcachefs list /dev/typo
ERROR - bcachefs_rust::cmd_list: Fatal error: "No such file or directory"
$ echo $?
1
Signed-off-by: Thomas Bertschinger <tahbertschinger@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This is a _very_ preliminary rewrite of the cmd_list tool in rust, which
is intended to be a testing ground for a safe interface in Rust to the
core btree interface. This adds rust wrappers for:
bch_fs: provides bch2_fs_open(), bch2_fs_stop
btree_trans: provides bch2_trans_init(), bch2_trans_exit()
btree_iter: provides peek, peek_and_restart, advance
bch_errcode: implements Display (wraps bch2_err_str())
bpos: implements Ord (wraps bpos_cmp())
bkey_s_c: implements Display (wraps bch2_bkey_val_to_text())
and other assorted types.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
- passing of arguments from c -> rust code now works correctly
- 'bcachefs mount' now handles being passed a device or devices
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Rust is now required for building the bcachefs tool, and rust code is
now fully integrated with the C codebase - meaning it is possible to
call back and forth.
The mount helper is now a subcommand, 'mount.bcachefs' is now a small
shell wrapper that invokes 'bcachefs mount'.
This will make it easier to start rewriting other subcommands in rust,
and eventually the whole command line interface.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
The device, data, fs, and subvolume subcommands currently print out a
generic usage message. Make these more specific.
Signed-off-by: Brett Holman <bholman.devel@gmail.com>
This adds a new subcommand, bcachefs data job, that gives more direct
access to the data job/ioctl functionality, and hooks up the new rewrite
old nodes data job.
