feat: support to specific the format of target file

[LinuxSuRen]

No description provided.

[codecov]

Codecov Report

Merging #364 (3d9be61) into master (844aa9b) will increase coverage by 0.14%.
The diff coverage is 75.00%.

@@            Coverage Diff             @@
##           master     #364      +/-   ##
==========================================
+ Coverage   61.06%   61.20%   +0.14%     
==========================================
  Files          64       65       +1     
  Lines        3449     3475      +26     
==========================================
+ Hits         2106     2127      +21     
- Misses       1238     1242       +4     
- Partials      105      106       +1     

Flag	Coverage Δ
unittests	61.20% <75.00%> (+0.14%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
cmd/fetch.go	71.69% <ø> (-1.03%)	⬇️
cmd/install.go	35.15% <ø> (-1.49%)	⬇️
pkg/installer/types.go	0.00% <0.00%> (ø)
cmd/search.go	88.37% <40.00%> (-4.13%)	⬇️
cmd/setup.go	75.00% <40.00%> (-4.17%)	⬇️
pkg/installer/fetch.go	11.18% <50.00%> (-0.08%)	⬇️
cmd/root.go	81.96% <78.57%> (-1.02%)	⬇️
pkg/installer/check.go	38.06% <92.30%> (+2.55%)	⬆️
cmd/get.go	68.57% <100.00%> (+0.47%)	⬆️

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