switch.d

import std.algorithm;
import std.file;
import std.range;
import std.stdio;
import std.string;
import std.process;

string deleteSources =
`
    access.c
    aliasthis.c
    apply.c
    argtypes.c
    arrayop.c
    attrib.c
    builtin.c
    canthrow.c
    cast.c
    class.c
    clone.c
    cond.c
    constfold.c
    cppmangle.c
    ctfeexpr.c
    declaration.c
    delegatize.c
    doc.c
    dsymbol.c
    entity.c
    enum.c
    errors.c
    escape.c
    expression.c
    func.c
    globals.c
    hdrgen.c
    identifier.c
    imphint.c
    import.c
    inifile.c
    init.c
    inline.c
    interpret.c
    intrange.c
    json.c
    lexer.c
    link.c
    macro.c
    mangle.c
    mars.c
    module.c
    mtype.c
    nogc.c
    nspace.c
    objc.c
    objc_stubs.c
    opover.c
    optimize.c
    parse.c
    root/aav.c
    root/async.c
    root/checkedint.c
    root/file.c
    root/filename.c
    root/longdouble.c
    root/man.c
    root/object.c
    root/outbuffer.c
    root/port.c
    root/response.c
    root/rmem.c
    root/speller.c
    root/stringtable.c
    sapply.c
    scope.c
    sideeffect.c
    statement.c
    staticassert.c
    struct.c
    target.c
    template.c
    tokens.c
    traits.c
    unittests.c
    utf.c
    version.c
`;

string addSources =
`
    access.d
    aggregate.d
    aliasthis.d
    apply.d
    argtypes.d
    arrayop.d
    arraytypes.d
    attrib.d
    builtin.d
    canthrow.d
    clone.d
    cond.d
    constfold.d
    cppmangle.d
    ctfeexpr.d
    dcast.d
    dclass.d
    declaration.d
    delegatize.d
    denum.d
    dimport.d
    dinifile.d
    dinterpret.d
    dmacro.d
    dmangle.d
    dmodule.d
    doc.d
    dscope.d
    dstruct.d
    dsymbol.d
    dtemplate.d
    dunittest.d
    dversion.d
    errors.d
    escape.d
    expression.d
    func.d
    globals.d
    hdrgen.d
    identifier.d
    imphint.d
    init.d
    inline.d
    json.d
    lexer.d
    lib.d
    link.d
    mars.d
    mtype.d
    nogc.d
    nspace.d
    objc.d
    opover.d
    optimize.d
    parse.d
    root/aav.d
    root/file.d
    root/filename.d
    root/man.d
    root/outbuffer.d
    root/response.d
    root/speller.d
    root/stringtable.d
    sapply.d
    sideeffect.d
    statement.d
    staticassert.d
    target.d
    tokens.d
    traits.d
    utf.d
    visitor.d
`;

void main()
{
    version(Windows)
        assert(executeShell("make -fwin32.mak clean mars.d").status == 0);
    else
        assert(executeShell("make -fposix.mak clean mars.d").status == 0);
    foreach(fn; addSources.strip.splitLines.map!strip)
    {
        assert(executeShell("git add -f %s".format(fn)).status == 0);
    }
    foreach(fn; deleteSources.strip.splitLines.map!strip)
    {
        assert(executeShell("git rm -f %s".format(fn)).status == 0);
    }

    auto changes =
    [
        "posix.mak":
        [
            ["auto-tester-build: dmd checkwhitespace ddmd", "auto-tester-build: dmd checkwhitespace"],
            ["		$(GENSRC) $(MAGICPORT)", "		$(MAGICPORT)"],
            ["ddmd: mars.d $(MANUALSRC) newdelete.o glue.a backend.a $(HOST_DC) verstr.h", "dmd: mars.d $(MANUALSRC) newdelete.o glue.a backend.a $(HOST_DC) verstr.h"],
            ["	CC=$(HOST_CC) $(HOST_DC_RUN) $(MODEL_FLAG) $(DSRC) -ofddmd newdelete.o glue.a backend.a -vtls -J. -d $(DFLAGS)", "	CC=$(HOST_CC) $(HOST_DC_RUN) $(MODEL_FLAG) $(DSRC) -ofdmd newdelete.o glue.a backend.a -vtls -J. -d $(DFLAGS)"],

            ["dmd: $(DMD_OBJS) $(ROOT_OBJS) $(GLUE_OBJS) $(BACK_OBJS)",                        "#dmd: $(DMD_OBJS) $(ROOT_OBJS) $(GLUE_OBJS) $(BACK_OBJS)"],
            ["	$(HOST_CC) -o dmd $(MODEL_FLAG) $^ $(LDFLAGS)",                                 "#	$(HOST_CC) -o dmd $(MODEL_FLAG) $^ $(LDFLAGS)"],
            ["dmd: frontend.a root.a glue.a backend.a",                                        "#dmd: frontend.a root.a glue.a backend.a"],
            ["	$(HOST_CC) -o dmd $(MODEL_FLAG) frontend.a root.a glue.a backend.a $(LDFLAGS)", "#	$(HOST_CC) -o dmd $(MODEL_FLAG) frontend.a root.a glue.a backend.a $(LDFLAGS)"],
            ["mars.d : $(SRC) $(ROOT_SRC) magicport.json $(MAGICPORT)",                        "#mars.d : $(SRC) $(ROOT_SRC) magicport.json $(MAGICPORT)"],
            ["	$(MAGICPORT) . .",                                                              "#	$(MAGICPORT) . ."],
        ],
        "win32.mak":
        [
            ["auto-tester-build: dmd checkwhitespace ddmd", "auto-tester-build: dmd checkwhitespace"],
            ["ddmd.exe: $(DSRC) newdelete.obj glue.lib backend.lib verstr.h", "dmd.exe: $(DSRC) newdelete.obj glue.lib backend.lib verstr.h"],
            ["	$(HOST_DC) $(DSRC) -ofddmd.exe newdelete.obj glue.lib backend.lib -vtls -J. -d -L/STACK:8388608 $(DFLAGS)", "	$(HOST_DC) $(DSRC) -ofdmd.exe newdelete.obj glue.lib backend.lib -vtls -J. -d -L/STACK:8388608 $(DFLAGS)"],
            ["	$(HOST_DC) $(DSRC) -ofddmd.exe newdelete.obj glue.lib backend.lib -vtls -J. -d -L/STACK:8388608 $(DFLAGS)", "	$(HOST_DC) $(DSRC) -ofdmd.exe newdelete.obj glue.lib backend.lib -vtls -J. -d -L/STACK:8388608 $(DFLAGS)"],
            ["	$(DEL) $(GENSRC)", null],

            ["$(TARGETEXE): mars.obj $(LIBS) win32.mak",                                       "#$(TARGETEXE): mars.obj $(LIBS) win32.mak"],
            ["	$(CC) -o$(TARGETEXE) mars.obj $(LIBS) -cpp -mn -Ar -L/STACK:8388608 $(LFLAGS)", "#	$(CC) -o$(TARGETEXE) mars.obj $(LIBS) -cpp -mn -Ar -L/STACK:8388608 $(LFLAGS)"],
            ["$(GENSRC) : $(SRCS) $(ROOTSRC) magicport.json $(MAGICPORT)",                     "#$(GENSRC) : $(SRCS) $(ROOTSRC) magicport.json $(MAGICPORT)"],
            ["	$(MAGICPORT) . .",                                                              "#	$(MAGICPORT) . ."],
        ]
    ];
    foreach(fn, ch; changes)
    {
        auto f = cast(string)read(fn);
        foreach(v; ch)
        {
            f = f.replace(v[0] ~ '\n', v[1] is null ? v[1] : (v[1] ~ '\n'));
        }
        std.file.write(fn, f);
        assert(executeShell("git add -f %s".format(fn)).status == 0);
    }
}