This patch removes the magic constant we used when calling
`trace_unwrap_exit()` or `map_err_trace_exit_unwrap()`.
We used to call it with `1` as parameter, where the number was the exit
code to use. Now the implementation of the function does it
automatically (using 1 (one) as exit code).
All calls of these functions were fixed. Thanks to vim this was easy.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Because this API only errors when write!() errors occur, we can return
the exit code as an error here.
This way the user of the API can immediately exit if there was an IO
error, but the API automatically takes care of the right return value,
returning (exiting) with zero (0) if there was an "Broken pipe" error
and with one (1) otherwise, which is the expected behaviour here.
All calls to that API were changed accordingly.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Checking whether we have a file (on the FS) here is not enough for
either case (external link/internal link).
Thus, we should check whether a store entry with that ID exists. If it
does, we link internally, else externally by trying to parse the string
as URL.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Without this check, linking an entry with itself yields the following
error:
ERROR[ 1]: Entry is already borrowed: StoreId { base: Some("/home/m/.imag/store"), id: "notes/test" }
ERROR[ 2]: Error when calling retrieve() -- caused:
ERROR[ 3]: Error when calling get()
Which is semantically correct, but the user may get confused by that.
Instead, we print a nice error message that the entry cannot be linked
to itself.
This is not fixed in libimagentrylink itself, because libimagentrylink
cannot be called for the same entry.
If this would be possible, we would pass two `Entry` objects
mutably to the link functionality routines. This is not possible with
Rusts borrow semantics and therefor yields above error.
We compare strings to check whether the user accidentially linked an
entry with itself because we cannot get StoreIds from Entries because we
cannot get the Entry two times from the store in the first place. So
this is the best we have.
