JamPlus - Using JAM files NOT called 'jamfile.jam' - JamPlus

Using JAM files NOT called 'jamfile.jam'

I have a bunch of projects that I'm moving over to jamplus, each of which lives in my Z:\Projects folder.

Previously, I had a single jamfile.jam which had a big switch statement (switching on an environment var called PROJECT) which then did a subinclude on the specific project jam file.

e.g.

jam -sJAM_MODULES_USER_PATH="/Projects/jam" CONFIG=debug PLATFORM=win32 PROJECT=project1

However, I didn't like this approach... so I tried to change my structure to use a series of project<x>.jam files, and build them using

jam -sJAM_MODULES_USER_PATH="/Projects/jam" CONFIG=debug PLATFORM=win32 JAMFILE=project1.jam

This works fine -- each project is built separately, and only the project specified is built.

However, I can't work out how to generate the workspaces for these project<x>.jam files...

Invoking jam with

jam --workspace -gen=vs2008 -config=workspace.config project1.jam project1.workspace.vs2008

causes a whole bunch of errors

Reading platform [*] and config [debug]...
Z:/Projects/Jamfile.jam: No such file or directory
Reading platform [*] and config [release]...
Z:/Projects/Jamfile.jam: No such file or directory

It would appear that the workspace generator seems to always look for jamfile.jam instead of the jamfile that is specified on the command line.
Adding -jamflags=JAMFILE=project1.jam doesn't appear to help.

Any ideas whats going on? Am I missing something?

Dave

Replies (3)

RE: Using JAM files NOT called 'jamfile.jam' - Added by Joshua Jensen 11 months ago

Unfortunately, the key/value pairs specified through -jamflags are applied too late in the process. Instead, you need them applied pre-Jambase.

There is a way to do this, but it can only be done through the .config file. Either the JambaseText or JambaseVariables entries will do what you want (see http://jamplus.org/boards/1/topics/280#message-283).

Config = {
    JambaseVariables = {
        JAMFILE = 'project1.jam',
    },
}

or:

Config = {
     JambaseText = [[
        JAMFILE = project1.jam ;
    ]],
}

Will this work for you? We could get a -jambaseflags command line option added, too.

Josh

RE: Using JAM files NOT called 'jamfile.jam' - Added by David Cowan 11 months ago

No - that should work just fine... I'll just have a .config file for each project - no biggy.

I'll try it shortly, and post back on how I got on.

Thanks Josh.

Dave

RE: Using JAM files NOT called 'jamfile.jam' - Added by David Cowan 11 months ago

Unfortunately, neither of the suggested settings appear to have worked...

My config file current reads...

Config =
{
    JambaseVariables = {
        JAMFILE = "project1.jam",
    },

    Configurations = 
    {
        "debug",
    },

    JamFlags = 
    {
    },

    Platforms = 
    {
        "ios",
        "iossimulator",
    },

    SubIncludes = 
    {
        {
            "AppRoot",
            "$(sourceRootPath)",
        },
    },

    JamModulesUserPath = "$(sourceRootPath)jam",
}

Debug output appears to indicate it's still looking for 'jamfile.jam'

Dave

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