# bzr->git: keep empty directories 3 messages from 2012-07-14 to 2012-07-15. Participants: Felix Natter, David Aguilar, Steven Michalske. Thread: https://gitlist.dev/t/31025 ## Felix Natter, 2012-07-14 14:41 Subject: bzr->git: keep empty directories Message-ID: <87sjcuz9q7.fsf@bitburger.home.felix> URL: https://gitlist.dev/e/87sjcuz9q7.fsf%40bitburger.home.felix ``` hello, when converting a repo from bzr to git: mkdir freeplane-git1 cd freeplane-git1 git init . bzr fast-export --plain --export-marks=../marks.bzr ../trunk/ | git fast-import --export-marks=../marks.git git checkout Empty directories are not contained in the git working index. This is because of the --plain option, which "Excludes metadata to maximise interoperability" and thus does not support empty directories (http://doc.bazaar.canonical.com/plugins/en/fastimport-plugin.html). However, when I use "--no-plain" (which according to above documentation exports empty directories), git cannot handle it: $ ./freeplane2git.sh Initialized empty Git repository in /home/felix/git/freeplane-git1/.git/ 15:56:09 Calculating the revisions to include ... 15:56:09 Starting export of 4290 revisions ... fatal: This version of fast-import does not support feature commit-properties. fast-import: dumping crash report to .git/fast_import_crash_3915 bzr: broken pipe I already tried to hack bzr-fastimport's exporter.py so that it does not emit commit properties but emits empty directories but i was not successful. So is there another way to preserve empty directories or shall I report a bug on bzr fast-export? Many thanks in advance! -- Felix Natter ``` ## David Aguilar, 2012-07-14 22:46 Subject: Re: bzr->git: keep empty directories Message-ID: URL: https://gitlist.dev/e/CAJDDKr5V%2B%2BTtS24D%3DSsaPnkx%3D%3DZo8%3Dfpvg2RNod9%2B-JGxWfhGQ%40mail.gmail.com In-Reply-To: <87sjcuz9q7.fsf@bitburger.home.felix> ``` On Sat, Jul 14, 2012 at 7:41 AM, Felix Natter wrote: > hello, > > when converting a repo from bzr to git: > > mkdir freeplane-git1 > cd freeplane-git1 > git init . > bzr fast-export --plain --export-marks=../marks.bzr ../trunk/ | git fast-import --export-marks=../marks.git > git checkout > > Empty directories are not contained in the git working index. This is > because of the --plain option, which "Excludes metadata to maximise > interoperability" and thus does not support empty directories > (http://doc.bazaar.canonical.com/plugins/en/fastimport-plugin.html). > > However, when I use "--no-plain" (which according to above documentation > exports empty directories), git cannot handle it: > > $ ./freeplane2git.sh > Initialized empty Git repository in /home/felix/git/freeplane-git1/.git/ > 15:56:09 Calculating the revisions to include ... > 15:56:09 Starting export of 4290 revisions ... > fatal: This version of fast-import does not support feature commit-properties. > fast-import: dumping crash report to .git/fast_import_crash_3915 > bzr: broken pipe > > I already tried to hack bzr-fastimport's exporter.py so that it does not > emit commit properties but emits empty directories but i was not > successful. > > So is there another way to preserve empty directories or shall I report > a bug on bzr fast-export? > > Many thanks in advance! I would suggest hacking it to optionally not emit commit properties as step one. A later enhancement would be to optionally create directories with empty .gitignore files, or something similar. git really doesn't care about empty directories. -- David ``` ## Steven Michalske, 2012-07-15 04:01 Subject: Re: bzr->git: keep empty directories Message-ID: <2059FC03-7308-4BAD-B90A-451F71791187@gmail.com> URL: https://gitlist.dev/e/2059FC03-7308-4BAD-B90A-451F71791187%40gmail.com In-Reply-To: ``` Perhaps having a file named something like: .git_foreign_scm_empty_dir or some shorter name. With the contents of the fast importer empty directory info put in there; If any book keeping is needed. It also looks like you strip out meta-data. perhaps a file like: .git_foreign_scm_metadata We could use the .git/config file format for storing the bookkeeping data. Steve On Jul 14, 2012, at 3:46 PM, David Aguilar wrote: > On Sat, Jul 14, 2012 at 7:41 AM, Felix Natter wrote: >> hello, >> >> when converting a repo from bzr to git: >> >> mkdir freeplane-git1 >> cd freeplane-git1 >> git init . >> bzr fast-export --plain --export-marks=../marks.bzr ../trunk/ | git fast-import --export-marks=../marks.git >> git checkout >> >> Empty directories are not contained in the git working index. This is >> because of the --plain option, which "Excludes metadata to maximise >> interoperability" and thus does not support empty directories >> (http://doc.bazaar.canonical.com/plugins/en/fastimport-plugin.html). >> >> However, when I use "--no-plain" (which according to above documentation >> exports empty directories), git cannot handle it: >> >> $ ./freeplane2git.sh >> Initialized empty Git repository in /home/felix/git/freeplane-git1/.git/ >> 15:56:09 Calculating the revisions to include ... >> 15:56:09 Starting export of 4290 revisions ... >> fatal: This version of fast-import does not support feature commit-properties. >> fast-import: dumping crash report to .git/fast_import_crash_3915 >> bzr: broken pipe >> >> I already tried to hack bzr-fastimport's exporter.py so that it does not >> emit commit properties but emits empty directories but i was not >> successful. >> >> So is there another way to preserve empty directories or shall I report >> a bug on bzr fast-export? >> >> Many thanks in advance! > > I would suggest hacking it to optionally not emit commit properties as step one. > > A later enhancement would be to optionally create directories with > empty .gitignore files, or something similar. git really doesn't care > about empty directories. > -- > David > -- > To unsubscribe from this list: send the line "unsubscribe git" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html ```