#540 reparsing project not updating auto-generated files set after change of precompiler rules

[Jannick]

Example:

• open project with file a.y, hence auto-generated file a.parser.cc and a.parser.hh (according to precompiler rule)
• change the .y precompiler rule to create dependency files $file_name.parser.c and $file_name.parser.h (i.e. change of file extension), close the precompiler config dialog and save the config changes to default.conf
• reparse the project
• issue: set of auto-generated files not updated in project explorer frame

Workaround: close and reopen project

[ollydbg]

The "reparse the project" context menu is a feature from "CodeCompletion plugin", it is not related to compiler plugin.

[Jannick]

Understand.

I think this is still a bug - or a potential enhancement at least - that the list of auto-generated files in the file explorer is not updated when the compiler dependency rules are updated.

[Teodor Petrov]

Can you upload a sample project? And please post the exact steps needed to reproduce the problem. I have no idea where is this precompiler config dialog.

[Jannick]

Attached a minimal compilable example requiring flex.exe:

Example

• open project (assuming that gcc is the associated compiler) and you see
  • mini.l - source file
  • mini.scanner.cc - autogenerated file (if using the svn11112 default precompiler defautl config)
• compile target debug
  • precompiler mini.l > mini.scanner.cc
  • mini.scanner.cc > mini.scanner.o
  • mini.scanner.o > ....exe
• clean target - and make sure that CB really removed mini.scanner.cc (it should usually do, but it does not for non-.c/non-.cc auto-generated files (see [tickets:#538]
• adjust precompiler rule by replacing extension of auto-generated file from '.cc' to '.c', i.e. the precompiler should convert 'mini.l' to 'mini.scanner.c' (instead of 'mini.scanner.cc)
  • settings > compiler > tab 'Other settings' > btn 'Advanced options ...' > tab 'Commands' > select 'l' in 'Source ext'
  • window 'command line macro': replace '.cc' by '.c'
  • window 'generated files': replace '.cc' by '.c'
• confirm with 2 x 'OK'

Result

• projects window: auto-generated file still shown as 'mini.scanner.cc' (although we changed it to 'mini.scanner.c' ... this is on the surface
• compile project to test what the compiler factory knows and expects.
  • precompiler step: mini.l > mini.scanner.c (OK)
  • compiler step: mini.scanner.cc > mini.scanner.o (expected after change: mini.scanner.c > mini.scanner.o) breaks since .cc file does not exist.

Summary

After changing precompiler rules
the displayed set of auto-generated files is not updated in the project view
the compiler does acknowledge the change of the precompiler rule (supposedly since read at compile time) ...OK
* the compiler does not internally update the auto-generated file list

Related bug reports:

• [tickets:#535] enhancement of flex / bison precompiler commands
• [tickets:#538] 'Clean project' does not remove all auto-generated files