[Scons-users] Fwd: Dependency tree for test framework

[Oliver Koch]

Dear Scons developers and users,

I would like to set up a rather complex test framework to compare the
changes between different versions (old vs. new) of an executable.
The workflow also includes different steps (tools) to process resp.
compare the output files.

See the attached HTML file (resp. the according Markdown file).
Any green box should be regarded as an independent component the can be
changed by me. Any white box is a dependent file that is generated from
the independents.

The task is to create a dependency tree in SCons that re-generates the
(necessary) final output files (b.out.diff resp.b.log.diff), if any of
the dependent green boxes have been changed.

I am struggeling with your documentation to conclude, how a SCons script
should look like for the above purpose, since I am not using any
classical compiler or linker in this workflow.
Could you indicate me, how the shown dependency tree must be implemented
with a SCons script?
(And maybe explain a little bit why?)

Regards,

Oliver

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# Dependency Tree for Test Framework

```plantuml
@startuml DependencyTree
file "a.ini" as aIni #lightgreen
'
file "b.dat" as bDat #lightgreen
'
component "aOld.exe" as aOld #lightgreen
component "aNew.exe" as aNew #lightgreen
'
file "aOld\b.out" as aOld_bOut
file "aOld\b.log" as aOld_bLog
file "aNew\b.out" as aNew_bOut
file "aNew\b.log" as aNew_bLog
'
component "PreProcess.py" as PreProcess #lightgreen
component "OutDiff.py" as OutDiff #lightgreen
component "LogDiff.exe" as LogDiff #lightgreen
'
file "aOld\b.out.tmp" as aOld_bOut_tmp
file "aNew\b.out.tmp" as aNew_bOut_tmp
'
file "b.out.diff" as bOut_Diff
file "b.log.diff" as bLog_Diff
'
aIni <|--- aOld
aIni <|--- aNew
'
bDat <|-- aOld
bDat <|-- aNew
'
aOld <|-- aOld_bOut
aOld <|-- aOld_bLog
aNew <|-- aNew_bOut
aNew <|-- aNew_bLog
'
aOld_bOut <|-- PreProcess
aNew_bOut <|-- PreProcess
aOld_bOut <|-- aOld_bOut_tmp
aNew_bOut <|-- aNew_bOut_tmp
PreProcess <|-- aOld_bOut_tmp
PreProcess <|-- aNew_bOut_tmp
'
aOld_bOut_tmp <|-- OutDiff 
aNew_bOut_tmp <|-- OutDiff
OutDiff <|-- bOut_Diff
'
aOld_bLog <|-- LogDiff
aNew_bLog <|-- LogDiff
LogDiff <|-- bLog_Diff
@enduml
```
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