Rework the dependencies definition to include a 'required' flags, which
is passed by the check_dependencies helper to the callers, so that they
can distinguish between required and optional dependencies.
This help in two ways:
- The unit test for the dependencies was now failing when an optional
one was missing, due to a previous rework.
- Mat2's --check-dependencies was referring to "required dependencies"
and was misleading for the user as some of them could be optional.
Signed-off-by: Antoine Tenart <antoine.tenart@ack.tf>
The command line checks for command line utilities are done by trying to
access the executables and by throwing an exception when not found. This
lead to:
- The mat2 cmd line --check-dependencies option failing.
- The ffmpeg unit tests failing when ffmpeg isn't installed (even though
it's an optional dependency).
This patch fixes it.
Signed-off-by: Antoine Tenart <antoine.tenart@ack.tf>
Invert the keys and values in DEPENDENCIES. It seems more natural to use
the key as a key in check_dependencies(), and the value as the value.
This also help in preparing for reworking the check_dependencies()
helper.
Signed-off-by: Antoine Tenart <antoine.tenart@ack.tf>
- This commit introduces optional dependencies (namely ffmpeg):
mat2 will spit a warning when trying to process an .avi file
if ffmpeg isn't installed.
- Since metadata are obtained via exiftool, this commit
also refactors a bit our exfitool wrapper.
