Design

The chapter described command API principles and the design of particular subsystems in DataLad.

• dataset argument
  • Impact on relative path resolution
  • Special values
  • Use cases
• Log levels
  • Common principles
  • Use cases
• Drop dataset components
  • Use cases
• Python import statements
  • Examples
• Miscellaneous patterns
  • Generator methods in Repo classes
  • Calls to Git commands
  • Command examples
• Exception handling
  • Catching exceptions
  • Messaging about an exception
• Credential management
• URL substitution
  • Examples