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[BUG] --passphrase-file ignored for "chia start"

See original GitHub issue

Describe the bug There are three bugs here, filed as one issue as they are all interrelated:

Bug 1 - Cannot start chia with passphrase-file

When starting Chia, the new --passphrase-file CLI option has no effect; Chia queries the passphrase from the terminal, preventing unattended system start scripts from operating. Other Chia operations, such as keys show work as expected.

To Reproduce

(venv) ~$ echo -n "Super Secret" > /tmp/chia.pw
(venv) ~$ chia --passphrase-file /tmp/chia.pw keys show
Showing all public keys derived from your master seed and private key:
Fingerprint: 12345678
...
(venv) ~$ chia --passphrase-file /tmp/chia.pw start farmer
Daemon not started yet
Starting daemon
(Unlock Keyring) Passphrase: 
Aborted!
(venv) ~$

Bug 2 - Input sanitizing

The routine that reads the --passphrase-file preserves spaces within the passphrase (correct) but also includes line termination characters (CRLF) within the passphrase (incorrect).

To Reproduce

(venv) ~$ echo "Super Secret" > /tmp/chia.pw   # The correct password but with '\n' on the end.
(venv) ~$ chia --passphrase-file /tmp/chiia.pw keys show
(Unlock Keyring) Passphrase: 
Aborted!
(venv) ~$

Bug 3 - Lack of error/abort on incorrect passphrase

When providing the wrong password in the passphrase-file, chia does not abort with an “incorrect passphrase” error. See the “To Reproduce” for Bug 2.

Expected Behavior

Chia should honor --passphrase-file when starting, and provide useful error output when the passphrase is incorrect.

(venv) ~$ echo "There are no mistakes, just happy accidents" > /tmp/chia.pw
(venv) ~$ chia --passphrase-file /tmp/chia.pw keys show
Invalid passphrase from file /tmp/chia.pw
(venv) ~$ echo $?
1
(venv) ~$ echo $'Super Secret\n\n\r\n\r\n' > /tmp/chia.pw
(venv) ~$ chia --passphrase-file /tmp/chia.pw start farmer
Daemon not started yet
Starting daemon
Starting farmer
...
(venv) ~$