[darcs-users] git -> darcs-fast-import is sad about directory creation

[Trent W. Buck]

"Trent W. Buck" <trentbuck at gmail.com> writes:

> I'm trying to convert an existing etckeeper (/etc) git repository to
> darcs using your darcs-fast-import.  It tells me:
>
>     $ ( cd ../etc && git fast-export --all ) | ../darcs-fast-export/darcs-fast-import
>     Traceback (most recent call last):
>       File "../darcs-fast-export/darcs-fast-import", line 295, in <module>
>         h.handle()
>       File "../darcs-fast-export/darcs-fast-import", line 277, in handle
>         self.handle_commit()
>       File "../darcs-fast-export/darcs-fast-import", line 182, in handle_commit
>         sock = open(path, "w")
>     IOError: [Errno 2] No such file or directory: 'Muttrc.d/charset.rc'

I got further on my own with the following patch.

    diff --git a/darcs-fast-import b/darcs-fast-import
    index 1e6c893..f7a45fc 100755
    --- a/darcs-fast-import
    +++ b/darcs-fast-import
    @@ -179,6 +179,9 @@ class Handler:
                            elif self.line.startswith("M "):
                                    items = self.line.split(' ')
                                    path = items[3][:-1]
    +                                print "I'm an 'M '! " + path
    +                                if os.path.dirname (path) and not os.path.exists (os.path.dirname (path)):
    +                                        os.makedirs (os.path.dirname (path))
                                    sock = open(path, "w")
                                    if items[2] != "inline":
                                            idx = int(items[2][1:])

However I know run into a problem I can't understand.  It seems to be
related to this incremental marking business.  I'm not interested in
increments, because this is a one-off conversion.

    $ rm -rf etc-darcs
    $ darcs init --repo etc-darcs
    $ (cd etc-darcs && ../darcs-fast-import) <etc-git.fast-export
    [...]
    I'm an 'M '! acpi/battery.d/90-hdparm.sh
    Traceback (most recent call last):
      File "../darcs-fast-import", line 298, in <module>
        h.handle()
      File "../darcs-fast-import", line 280, in handle
        self.handle_commit()
      File "../darcs-fast-import", line 188, in handle_commit
        sock.write(self.marks[idx])
    KeyError: 25

I tried to get git fast-export to export marks, but as usual its error
reporting is completely unintelligible:

    $ sudo git fast-export --export-marks /tmp/etc.marks --all >/tmp/etc.git
    fatal: ambiguous argument '/tmp/etc.marks': unknown revision or path
    not in the working tree.
    Use '--' to separate paths from revisions