Remove all golangci-error

[Monirzadeh]

this Pull request try to fix error of golangci in code to be update to golang 1.20

[coveralls]

Pull Request Test Coverage Report for Build 6150601568

• 0 of 0 changed or added relevant lines in 0 files are covered.
• 37 unchanged lines in 2 files lost coverage.
• Overall coverage remained the same at 87.105%

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Files with Coverage Reduction	New Missed Lines	%
fetchmedia.go	3	93.28%
epub.go	34	85.34%
<!--	Total:	37		-->

Totals
Change from base Build 6135742601:	0.0%
Covered Lines:	1074
Relevant Lines:	1233

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💛 - Coveralls

[Monirzadeh]

Hi @bmaupin do you know why we have this line in project but not use that? https://github.com/go-shiori/go-epub/blob/dc41032709c02171defc7dfa8bce83ce75ca0c79/toc.go#L237C1-L239C2

[Monirzadeh]

Hi @fmartingr. i try to not change code so much and follow same error handling in each individual function. but if you think we should change them to better option please leave comment on them. for example i use fatal one or two function do you think we should replace them?

[fmartingr]

Hi @fmartingr. i try to not change code so much and follow same error handling in each individual function. but if you think we should change them to better option please leave comment on them. for example i use fatal one or two function do you think we should replace them?

I think those t.Fatal are ok, since they are failing in system calls (like copy, create temp, etc.). If that calls fails there's a high change that something is wrong at another level anyway. If we put t.Error in io.Copy for example, there's a chance that all calls to that are going to fail because of the same reason, so it's better to fail early I think.

[Monirzadeh]

Thanks. i just don't know why we have this in code but i don't remove that. https://github.com/go-shiori/go-epub/pull/5#issuecomment-1714543835