This patch changes imag-header to do not printing of the found values,
but simply filtering.
Chaining can then be used to read the values:
imag ids | imag header string "imag.version" | imag header read "imag.version"
for example.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
Prior to this change, the IdPathProvider implementation would be
responsible for exiting the process on insufficient / wrong arguments.
However, such error handling should be performed together with the
business logic and not in CLI-parsing related code.
This change introduces a clear separation: both parsing errors and
insufficient id path arguments can now be return from inside the
`get_ids`-method, and get passed up to the application logic to be
handled.
This change is reflected in all instances of IdPathProvider and their
surrounding code.
Signed-off-by: Leon Schuermann <leon.git@is.currently.online>
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
With this patch we move the codebase to Rust-2018.
The diff was generated by executing
cargo fix --all --all-features --edition
on the codebase.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
imag-header is a tool for querying information of an entry in a defined
format.
imag-header is intended for scripting with imag commands.
The output format is not stable yet, though.
Signed-off-by: Matthias Beyer <mail@beyermatthias.de>
