Process Flowchart

Process Flowchart

• Begin
  • Parse options
  • Parse command
  • Build
    • Find, parse SMakefile
      • Not found: Print error and fail
    • Recursively add 'virtual dependencies' of targets
      • Ignore declared dependencies
      • Use hash table keyed by target name to prevent infinite recursion in case of cyclic dependencies
      • Warn user about virtual dependencies
      • Look for cyclic dependecies
        • Fail if found
    • Per target:
      • Update (virtual) dependencies
      • Check input files
        • Force update if no inputs
        • Fail on missing
      • Check output files
        • Force update if no outputs
        • Missing outputs forces updates
      • If all outputs are newer than all inputs then skip
      • Execute update
      • Update file modification times
  • Info
    • Find, parse SMakefile
      • Not found: Print error and fail
    • For each target:
      • Collect parsed info
      • Get target status:
        • Check input files for existence and modification times
        • Check output files (for existence and modification times)
        • Missing input files marks the target as 'invalid'
        • Missing output files marks the target as needing update
        • If an output file is older than an input then mark as needing update
        • Otherwise mark as up-to-date
      • Retrieve virtual dependencies
        • Warn if any found
        • Warn on cyclic dependency
      • Store information
    • General
      • Print stored information
        • Marking
        • Name
        • Inputs
        • Outputs
        • Commands
        • Dependencies
    • Dependencies
      • Print dependency info
        • Marking
        • Name
        • Dependency list (one level deep only)
    • Reverse dependencies
      • Build rev-dependency list:
        • For each target:
          • Look for (virtual) dependencies on this target
          • Save targets (by ref)
      • Print out list
        • Marking
        • Name
        • Dependers (one level deep only)
  • Help
    • Find command
    • Print help
      • Name
      • Brief Description
      • Detailed Description
      • Options
      • Examples