Policy import should check if a file exists first #773
Description
Is your feature request related to a problem?
It would be better to fast fail if a trust policy file doesn't exist
For example:
$ notation policy import trustpolicy.json
Existing trust policy configuration found, do you want to overwrite it? [y/N] y
Error: failed to read trust policy file: open trustpolicy.json: no such file or directory
If this is not actionable anyway, no point asking the user the question in the first place
What solution do you propose?
If file doesn't exist:
$ notation policy import trustpolicy.json
Error: failed to read trust policy file: open trustpolicy.json: no such file or directory
If file exists:
$ notation policy import trustpolicy.json
Existing trust policy configuration found, do you want to overwrite it? [y/N] y
...
What alternatives have you considered?
n/a
Any additional context?
No response