[Qbs] Problem getting build order right when I use a header generator

[Jochen Becher]

Hi Kai,
you made my day! It is working! I don't understand why, but who cares?
Regards, Jochen

Am Donnerstag, dem 14.07.2022 um 07:40 +0200 schrieb Kai Dohmen:
> Hello,
>
> did you try to append "hpp" to the static libraries type property?
> Maybe this would force Qbs to generate the headers before consuming
> the library.
>
> Regards, Kai
>
> Am Mi., 13. Juli 2022 um 22:50 Uhr schrieb Jochen Becher <
> jochen_becher at gmx.de>:
> > Another observation:
> >
> >
> >
> > After I built the project once with one job at a time and it
> > succeeded,
> >
> > it also succeeds after "Clean" and building with 12 parallel jobs.
> > So,
> >
> > once the dependency between the source file and the header file is
> >
> > established, it gets not lost until you delete the .bg file.
> >
> >
> >
> > As it works within the static library but just not when an external
> >
> > source file depends on that generated header file, I assume it is
> > an
> >
> > issue in qbs.
> >
> >
> >
> > Any comments?
> >
> >
> >
> >
> >
> > Am Dienstag, dem 12.07.2022 um 22:08 +0200 schrieb Jochen Becher:
> >
> > > One more information:
> >
> > >
> >
> > > If I set the number of parallel jobs to 1 then it works fine. The
> >
> > > order
> >
> > > of the build tasks seems to be correct. Just the compilation of
> >
> > > source
> >
> > > files outside of the library but depending on a header file
> > created
> >
> > > from the library seems not to wait until the header files are
> > done.
> >
> > > Of
> >
> > > course, this obviously works with linking of object files and
> > static
> >
> > > libraries. It looks like an issue in qbs to me.
> >
> > >
> >
> > > Can someone please comment on this before I create a minimal
> > example
> >
> > > and issue?
> >
> > >
> >
> > > Regards, Jochen
> >
> > >
> >
> > >
> >
> > > Am Samstag, dem 09.07.2022 um 22:56 +0200 schrieb Jochen Becher:
> >
> > > > Hi,
> >
> > > >
> >
> > > > I have the following problem where I could not find a solution
> >
> > > > myself:
> >
> > > >
> >
> > > > I created a new module which uses a code generator "compiler-
> >
> > > > generator"
> >
> > > > that I wrote to create header and source files from input
> > files. I
> >
> > > > used
> >
> > > > the lexyacc module as a template. (see end of mail for module
> >
> > > > source)
> >
> > > >
> >
> > > > I use that module in a product that creates a static library,
> > like
> >
> > > > that:
> >
> > > >
> >
> > > >     StaticLibrary {
> >
> > > >         name: "corelib"
> >
> > > >
> >
> > > >         Export {
> >
> > > >             Depends { name: "cpp" }
> >
> > > >             cpp.includePaths: ["src",
> >
> > > > exportingProduct.buildDirectory]
> >
> > > >         }
> >
> > > >
> >
> > > >         Depends { name: "compgen" }
> >
> > > >         Depends { name: "compiler-generator" }
> >
> > > >
> >
> > > >         cpp.includePaths: [ "src", product.buildDirectory ]
> >
> > > >
> >
> > > >         Group {
> >
> > > >             name: "frontend-header-generator"
> >
> > > >             fileTags: "compgen.input"
> >
> > > >             compgen.outputTag: "hpp"
> >
> > > >             files: [
> >
> > > >                 "src/frontend/tokens.h.in",
> >
> > > >             ]
> >
> > > >         }
> >
> > > >
> >
> > > >         Group {
> >
> > > >             name: "frontend-source-generator"
> >
> > > >             fileTags: "compgen.input"
> >
> > > >             compgen.outputTag: "c"
> >
> > > >             files: [
> >
> > > >                 "src/frontend/lexer.c.in",
> >
> > > >             ]
> >
> > > >         }
> >
> > > >
> >
> > > >         Group {
> >
> > > >             name: "frontend"
> >
> > > >             files: [
> >
> > > >                 "src/frontend/lexer.h",
> >
> > > >                 "src/frontend/parser.c",
> >
> > > >                 "src/frontend/parser.h",
> >
> > > >             ]
> >
> > > >         }
> >
> > > >
> >
> > > > Building that library works fine.
> >
> > > >
> >
> > > > But some other tools also want to use the created header file
> >
> > > > "tokens.h". These applications (e.g., "compiler") depends on
> >
> > > > "corelib".
> >
> > > >
> >
> > > > But the application source is compiled before the header file
> >
> > > > "tokens.h" is generated from "tokens.h.in" and so it is
> > missing.
> >
> > > >
> >
> > > > What is the best way to enforce that the dependency on corelib
> > from
> >
> > > > an
> >
> > > > application first builds the library corelib with the generated
> >
> > > > header
> >
> > > > and source files and THEN builds the dependend source files?
> >
> > > >
> >
> > > > Regards, Jochen
> >
> > > >
> >
> > > >
> >
> > > > --- the generator module "compgen.qbs" ---
> >
> > > >
> >
> > > > import qbs
> >
> > > > import qbs.FileInfo
> >
> > > >
> >
> > > > Module {
> >
> > > >
> >
> > > >     Depends { name: "cpp" }
> >
> > > >
> >
> > > >     property string outputTag: "c"
> >
> > > >     readonly property string outputDir: product.buildDirectory
> >
> > > >
> >
> > > >     Rule {
> >
> > > >         inputs: [ "compgen.input" ]
> >
> > > >         outputFileTags: [ product.compgen.outputTag ]
> >
> > > >         explicitlyDependsOnFromDependencies: [ "compiler-
> > generator"
> >
> > > > ]
> >
> > > >
> >
> > > >         Artifact {
> >
> > > >             filePath: input.completeBaseName
> >
> > > >             fileTags: [ product.compgen.outputTag ]
> >
> > > >             cpp.includePaths: [].concat(input.cpp.includePaths,
> >
> > > > FileInfo.path(input.filePath), input.compgen.outputDir)
> >
> > > >         }
> >
> > > >
> >
> > > >         prepare: {
> >
> > > >             var command = explicitlyDependsOn["compiler-
> >
> > > > generator"][0].filePath
> >
> > > >             var arguments = [
> >
> > > >                         "-o", output.filePath,
> >
> > > >                         input.filePath
> >
> > > >                     ]
> >
> > > >             var cmd = new Command(command, arguments)
> >
> > > >             cmd.description = "generating " + output.filePath +
> > "
> >
> > > > from
> >
> > > > " + input.filePath
> >
> > > >             cmd.highlight = "codegen"
> >
> > > >             return [ cmd ]
> >
> > > >         }
> >
> > > >     }
> >
> > > > }
> >
> > > >
> >
> > > > _______________________________________________
> >
> > > > Qbs mailing list
> >
> > > > Qbs at qt-project.org
> >
> > > > https://lists.qt-project.org/listinfo/qbs
> >
> > >
> >
> > > _______________________________________________
> >
> > > Qbs mailing list
> >
> > > Qbs at qt-project.org
> >
> > > https://lists.qt-project.org/listinfo/qbs
> >
> >
> >
> > _______________________________________________
> >
> > Qbs mailing list
> >
> > Qbs at qt-project.org
> >
> > https://lists.qt-project.org/listinfo/qbs
> >
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.qt-project.org/pipermail/qbs/attachments/20220714/a622726d/attachment-0001.htm>