Install from lockfile if dependencies haven't changed

[joshuacc]

Related to #42

[codecov]

Codecov Report

Merging #74 (a10db29) into main (6f5547e) will increase coverage by 0.98%.
The diff coverage is 31.33%.

@@            Coverage Diff             @@
##             main      #74      +/-   ##
==========================================
+ Coverage   26.40%   27.38%   +0.98%     
==========================================
  Files          14       17       +3     
  Lines         678      902     +224     
==========================================
+ Hits          179      247      +68     
- Misses        496      650     +154     
- Partials        3        5       +2     

Impacted Files	Coverage Δ
src/core/installer.go	0.00% <0.00%> (ø)
src/core/lock_manifest.go	0.00% <0.00%> (ø)
src/core/manifest.go	44.15% <0.00%> (+4.15%)	⬆️
src/core/packages_repository.go	1.83% <0.00%> (-0.32%)	⬇️
src/utils/utils.go	19.44% <0.00%> (-7.48%)	⬇️
src/core/resolved_dependency.go	10.00% <10.00%> (ø)
src/core/dependency_array.go	78.57% <78.57%> (ø)
src/core/dependency_resolver.go	93.54% <97.01%> (-6.46%)	⬇️
src/core/dependency.go	93.10% <100.00%> (+0.51%)	⬆️
src/core/tree_node.go	67.39% <100.00%> (+5.85%)	⬆️
... and 3 more

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more

[codeclimate]

Code Climate has analyzed commit a10db29 and detected 0 issues on this pull request.

View more on Code Climate.