On Mon, May 27, 2013 at 3:35 PM, Isaac Jurado <dipto...@gmail.com> wrote:
> Hello,
>
> I'm testing Fossil by migrating a bunch of Mercurial repositories.
> Unlike Git, Mercurial tracks file renames. However, in order to create
> a Fossil repository I have to follow the Mercurial -> Git -> Fossil
> path.
>
Is there a better way? Can we create a direct Hg->Fossil importer?
>
> On the first conversion I lose file copying/renaming information. But
> the "git fast-export" command has the -M and -C switches to enable
> copy/rename detection heuristics. Therefore, the last conversion step
> looks like:
>
> git fast-export -M -C --all | fossil import --git ../myrepo.fossil
>
> The good news is that the heuristics work, as Fossil fails with the
> following message:
>
> cannot handle R records, use --full-tree
>
> Which would be understandable if it was a completely unsupported caes.
> Nevertheless, I searched for the place where the error originates and I
> found this:
>
I apparently wrote that particular code. But if I ever knew what an "R"
record was, I have now forgotten. You might try commenting out the
fossil_fatal() call at the end of that code block to see what happens. If
that doesn't work, somebody is going to need to spend a day or say
reverse-engineering the rename-support in git-fast-export.
>
> }else
> if( memcmp(zLine, "R ", 2)==0 ){
> int nFrom;
> import_prior_files();
> z = &zLine[2];
> zFrom = next_token(&z);
> zTo = rest_of_line(&z);
> i = 0;
> nFrom = strlen(zFrom);
> while( (pFile = import_find_file(zFrom, &i, gg.nFile))!=0 ){
> if( pFile->isFrom==0 ) continue;
> pNew = import_add_file();
> pFile = &gg.aFile[i-1];
> if( strlen(pFile->zName)>nFrom ){
> pNew->zName = mprintf("%s%s", zTo, pFile->zName[nFrom]);
> }else{
> pNew->zName = fossil_strdup(pFile->zName);
> }
> pNew->zPrior = pFile->zName;
> pNew->isExe = pFile->isExe;
> pNew->isLink = pFile->isLink;
> pNew->zUuid = pFile->zUuid;
> pNew->isFrom = 0;
> gg.nFile--;
> *pFile = *pNew;
> memset(pNew, 0, sizeof(*pNew));
> }
> fossil_fatal("cannot handle R records, use --full-tree");
> }else
>
> Then I tried commenting the call to fossil_fatal() and the import
> completed, but the old files were not removed.
>
> So, finally, my question is. What is that code lacking in order to
> correctly import copy and rename information?
>
> Regards.
>
> --
> Isaac Jurado
>
> "The noblest pleasure is the joy of understanding."
> Leonardo da Vinci
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>
--
D. Richard Hipp
d...@sqlite.org
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