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Re: Modifications lost

From: Ulrich Eckhardt <eckhardt_at_satorlaser.com>
Date: 2006-07-07 09:01:47 CEST

On Friday 07 July 2006 07:17, Andrew Phillips wrote:
> I and another developer (on the other side of the globe) have been
> making changes to the same source file. Several times it has happened
> that when he commits his changes my recent changes are lost.
> For example, 2 days ago he committed the file (revision 117). I
> committed the file twice yesterday (118 and 119). Last night he made
> changes and committed 120. This contained his recent changes but
> reversed my changes made in 118 and 119.

If he tried to commit changes that are based on 117, Subversion will refuse
that and tell him to first update his working copy. Doing so will merge all
changes up to head into his working copy. If this leads to a conflict, there
is a simple resolution (using TSVN, as you later mention) to resolve the
conflict "using theirs" (discarding own changes) or "using mine" (discarding
all changes pulled from the repository). The right solution is of course to
edit the conflict by hand, test the code and then commit a merged version. If
your buddy didn't do that, that's a recipe for losing changes.

Anyhow, you should lart that guy because using TSVN it's a breeze to get a
diff before checking in and at latest then he should really see what he's
checking in. Using a tool is no excuse for not using one's brain.

> However, after he updated and committed he created a new .EXE which
> does include my changes.

Hmmm, now that's strange.

> He says that he did not intentionally (or unintentionally) remove my
> changes, and that he (or another entity) is *not* copying old versions
> of files into his working copy. He also insists that he is updating and
> committing correctly, although he did get a "checksum" error recently
> while updating the file.

A checksum error hints at a corrupted working copy, i.e. that someone (him) or
something (a broken tool) messed with Subversion's metadata which is stored
in the .svn subdirs. Neither user nor tools should touch anything inside
those, which is also why they are hidden and read-only.


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Received on Fri Jul 7 09:03:55 2006

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