Refactor

[kamontia]

Ref #76

• No use a global varible
  • begin/end number Make scope of begin/end number variable not global #122
  • headMax Make scope of headMax variable not global #123
  • stdin/specifiedMsg Remove global variable #124
• Make function have return and testable
  • logrusInit setting only, no need test
  • validate make validate function have return #125
  • displayCommitHashAndMessage
  • rangeValidation Make rangeValidation have return #127
  • getCommitHash Make getCommitHash testable  #132 -> model/AddCommitHash
  • getReflogHash git Refactor get reflog hash #126 -> model/AddReflogHash
  • getCommitMessage Make getCommitMessage testable #129 -> model/AddCommitMessage
  • checkCurrentCommit
  • pickupSquashRange Make scope of begin/end number variable not global #122
  • needsChangeMessage 4228350#diff-53618cae32e23ae47e1c35f10da92654
  • doRecovery

[chaspy]

🤔 hmm... at least, the part of execute (external) git commands should be separated from main.