<h2><a name="Mercurial">Importing from Mercurial</a></h2>

<h3>Problem</h3>

Fossil supports [/doc/trunk/www/inout.wiki|importing from Git], but not from Mercurial.

<h3>Solution</h3>
<h3>Solution1</h3>

We'll use Git as an intermediary: first by converting Mercurial repository to Git, and then by converting Git repository
to Fossil. You'll need both Git and Mercurial installed for this to work.

Get <i>hg2git.py</i>, <i>hg-fast-export.py</i>, and <i>hg-fast-export.sh</i> from [http://repo.or.cz/w/fast-export.git/tree],
and put them into a single directory (we'll use ~/Downloads/).

Now we can import Git repository into Fossil (we'll put it into
parent directory under the "our-repository.fossil" name):

<verbatim>
  git fast-export --all | fossil import --git ../our-repository.fossil
</verbatim>
  
<h3>Solution2</h3>

This solution uses HgGit from [http://hg-git.github.com/], hg, git, and fossil need to be installed on your system.  Most OSs have a package for HgGit, but I ran into a bug in an older version of HgGit and have found that a clean check out works just fine.

The following example worked very nicely for me on a Mercurial repository called "wpkg".

<h4>The basic steps are:</h4>
  1.  Clone the Mercurial repository.
  2.  Clone hg-git.
  3.  Initialize a new git repository.
  4.  Modify the .hg/hgrc file.
  5.  Push the Mercurial repository into the new git repository.
  6.  Export git to fossil.
  7.  Take a look at your new fossil repository.

<verbatim>
mkdir /tmp/crap
cd /tmp/crap
hg clone ssh://hg@hg/repos/wpkg
git clone git://github.com/schacon/hg-git.git
git init --bare git-wpkg
cd wpkg
cat >> .hg/hgrc << EOF

[extensions]
hgext.bookmarks =
hggit = /tmp/crap/hg-git/hggit
EOF

hg push ../git-wpkg
cd ../git-wpkg
git fast-export --all | fossil import --git ../wpkg.fossil
cd ..
fossil ui wpkg.fossil
</verbatim>