113 lines
4 KiB
Markdown
113 lines
4 KiB
Markdown
## #g2migr migrating from g2
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<font color="red">
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**This document is a *MUST* read if you are currently using g2 and want to
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move to g3.**
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</font>
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First things first: g2 will be supported for a good long time. My current
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*expert* users do not cause me any load anyway.
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Migration should be straightforward, but it is not automatic. You should run
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the "check-g2-compat" program first, to see any *major* differences that
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affect you. The bulk of the changes are in the RC file, which must be
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manually handled (links below). The conf files have very few changes -- they
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apply only if you use "NAME/" or delegation.
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You must first read about [incompatible][g2incompat] features and
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[dropped][g2dropped] features. Some features have been replaced with
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[alternatives][g2alt].
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Since the majority of changes are in the rc file, they're all listed
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[here][g2rcdiff].
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The rest of this page describes the completely standalone "check-g2-compat"
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script that you can find in the repo root (i.e., not in "src/").
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### the "check-g2-compat" program
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This program checks a few things only, not everything. In particular, it
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looks for settings and status that might:
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* make g3 unusable for lots of users
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* make g3 give *more* access than g2 under some conditions.
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It does NOT look for or warn about anything else; you're expected to read (and
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act upon, if needed) the rest of the migration guide links given a few paras
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above to cover everything else.
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Here's an explanation of those messages that the check-g2-compat program may
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put that contain the words "see docs":
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* `GL_ADMINDIR in the wrong place -- aborting`
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It expects to find `GL_ADMINDIR` and `REPO_BASE` pointing to the right
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places. It aborts if these conditions are not met and does not scan
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further since that sort of guesswork is not good. If you are in that
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position, make a symlink from the real location to the expected location,
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change the RC accordingly, and re-try.
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* `REPO_BASE in the wrong place -- aborting`
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same as above
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* `fallthru in NAME rules`
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**This is a significant difference and affects access badly (gives access
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that would otherwise not be given)**. Please see the [list of non-RC
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incompatibilities][g2incompat].
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* `subconf command in admin repo`
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This is not so bad security wise but it might *reduce* access by not
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processing files you intended to. Again, see the same link as in the
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previous bullet.
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* `mirroring used`
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There have been quite a few changes to mirroring. Please see the new
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[mirroring][mirroring] doc for details.
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* `found N gl-creater files`
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These need to be renamed to `gl-creator` (the correct spelling at last,
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hooray!). Suggested command sequence:
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cd $HOME/repositories
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find . -type d -name "*.git" -prune | while read r
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do
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mv $r/gl-creater $r/gl-creator
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done 2>/dev/null
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Once you do this, the g2 will not work completely unless you change them
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back.
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* `found N gl-perms files with R or RW`
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Setting perms of R and RW will no longer work; you have to say READERS and
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WRITERS now. Suggested command:
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The following variables need to be [preset][rc-preset] in the rc file
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**before** running `gitolite setup`. Otherwise the default actions will
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clobber something and require some recovery.
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* `GL_NO_SETUP_AUTHKEYS` (default will clobber your authkeys file)
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* `GL_NO_DAEMON_NO_GITWEB` (default will clobber your projects.list file and
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git-daemon-export-ok files)
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* `UPDATE_CHAINS_TO` (default will fail to run this extra check when users
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push)
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* `ADMIN_POST_UPDATE_CHAINS_TO` (severity depends on what your code is
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doing; see [g2rcdiff][] for how to fix this)
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* `GL_ALL_INCLUDES_SPECIAL` (default will allow gitweb and daemon to be able
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to read any repos that have `R = @all`)
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* `GIT_PATH` (presumably your git is in some non-std path so unless you
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preset `$ENV{PATH}` per instructions in the [rc file
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differences][g2rcdiff] doc, nothing will work).
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