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[[meta copyright="Copyright © 2007, 2008 Free Software Foundation, Inc."]]
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document under the terms of the GNU Free Documentation License, Version 1.2 or
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# Some Quick Notes About the *TWiki to ikiwiki* Conversion
/!\ Incomplete.
I saw a *moin2iki* program bundle being announced from
<http://ikiwiki.info/index/discussion/#index2h1>.
<tschwinge> JoshTriplett: On http://ikiwiki.info/users/joshtriplett.html
you write about a TWiki to ikiwiki conversion script. Is that already
available somewhere?
<JoshTriplett> tschwinge: Yes, you can get it in its current state at
git://svcs.cs.pdx.edu/git/moin2iki.git
<JoshTriplett> tschwinge: That repo has scripts for converting from Moin
and TWiki to ikiwiki.
<JoshTriplett> tschwinge: Work in progress.
<JoshTriplett> tschwinge: For a purely TWiki setup, it should work fine.
<JoshTriplett> tschwinge: You need a number of depenencies, though, and we
haven't documented them well yet.
<tschwinge> JoshTriplett: Thanks, I'll have a look and report back (in some
days, I hope).
<JoshTriplett> tschwinge: In particular, you need HTML::WikiConverter with
our 12 ikiwiki-related patches.
<JoshTriplett> tschwinge:
http://rt.cpan.org/Public/Bug/Display.html?id=24446
As I had difficulties with extracting the patches from the cpan site, they were
also made available by the authors at
<http://svcs.cs.pdx.edu/~jamey/wikiconverter/>.
The Debian package *libhtml-wikiconverter-perl* is too old at least until
[[debbug 419918]] is closed.
For converting from rcs files (as used by TWiki) to a git repository you'll
need to get `git clone git://people.freedesktop.org/~keithp/parsecvs` and build
it. Or don't do that and install the Debian *git-cvs* package instead; see
below.
Here is the command line I used (line breaks added for readability) to create
an *Authors* file from the TWiki files, suitable for *parsecvs* or
*git-cvsimport* to use:
$ sort < data/Main/TWikiUsers.txt | uniq | ↩
while read s n r; do ↩
( [ "$s" != \* ] || expr "$r" : .\*\< > /dev/null) && continue; ↩
echo "$n"="$(recode Latin1..UTF-8 < data/Main/"$n".txt | ↩
awk -v name="$n" 'BEGIN { FS = ": "; email = "web-hurd@gnu.org" } ↩
{ sub("\r$", "") } $1 ~ /\* Name$/ { name = $2 } ↩
$1 ~ /\* Email$/ { email = $2 } ↩
END { print name " <" email ">" }')"; ↩
done | tee Authors
The old TWiki installation had managed to corrupt one of its own rcs files,
which both *parsecvs* and *git-cvsimport* stumbled on. As that file was not
essential for me, I simply deleted it.
The final output (after the TWiki markup to Markdown markup conversion) was
expected to pour out *.mdwn* files. However the original TWiki files are named
*.txt*. As the *git-map* step as yet (would this be possible at all?) has no
way to rename the files while converting, I simply adapted the input files'
names to what was expected: I ran a the following command to rename the
*.txt,v* files to *.mdwn,v* files before running *git-cvsimport*:
$ find ./ | grep \\.txt,v | while read f; do ↩
mv -vi "$f" "$(expr "$f" : \\\(.\*\\\)\\.txt,v)".mdwn,v; done
Instead of using *parsecvs* (which finally even choked on the valid rcs input
files) I eventually ended up successfully converting the old TWiki with
*git-cvsimport*:
$ git-cvsimport -v -d "`pwd`"/../hurd-wiki/ -z 0 -a -A ../Authors data
[...]
Committed patch 4698 (origin +0000 2007-04-13 17:40:08)
Commit ID c33d05d0274d0d602fba835805abb9ba413c65c6
Generating pack...
Done counting 18576 objects.
Deltifying 18576 objects...
100% (18576/18576) done
Writing 18576 objects...
100% (18576/18576) done
Total 18576 (delta 12567), reused 16106 (delta 10886)
Pack pack-d38e3d55705f5d355f669aaa7d993420b50798d0 created.
Removing unused objects 100%...
Done.
DONE; creating master branch
The only thing I had to do to make the conglomerate of rcs files a *valid* cvs
repository (read: to satisfy *git-cvsimport*'s needs) was a `mkdir
../hurd-wiki/CVSROOT`.
Then let's convert the whole git tree from TWiki syntax to Markdown:
$ TWIKI="`pwd`"/../hurd-wiki tw_2001-12-01_2iki "`pwd`"/.git
[...]
After that I repeated -- in a separate directory!, they can be merged later --
the same last steps again, replacing *data* with *pub*, which contains the data
files that had been attached to the wiki pages (like images, for example).
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