Anderson Lizardo wrote:
Hi dev's,
FIY, the Subversion commit messages need always to be written either
in Unicode or plain ASCII, so "svn log --xml" can output valid XML
data. So please, setup your favorite editor to one of these encodings
before issuing a "svn commit".
A bit wrong. SVN uses the current locale encoding when accepting the log
message from the editor or from the command line, and then internally
converts it to UTF-8. When dumping the log in non-XML format, it is
converted from UTF-8 to the locale encoding. When dumping the log in XML
format, it stays in UTF-8.
That said, the commit 6803 on the LFS repository broke the script
that generates log messages for the website, because of an
non-Unicode char on its commit message. You can reproduce the problem
with this command:
svn log -r6803 --verbose --xml svn://svn.linuxfromscratch.org/LFS
This means that somebody somehow misconfigured Subversion. BTW my
attempts to reproduce this failure mode in the toy repository failed:
# Attempt to simulate a misconfigured locale
# and pass a string of 8-bit characters
LANG=C svn commit -m "Добавлена пустая строка"
svn: Commit failed (details follow):
svn: Can't recode string
# Attempt to insert an invalid character in UTF-8 string
# the locale is ru_RU.UTF-8, terminal is properly configured
svn commit -m `echo -e "Добавлена \xc0 пустая строка"`
svn: Valid UTF-8 data
(hex:)
followed by invalid UTF-8 sequence
(hex: c0)
I.e., all my attempts to add invalid characters to the log failed.
("Добавлена пустая строка" == "Added an empty line").
Jim: how did you do that? Which svn version?
Anderson: Which svn version is on the server?
Notice that the XML header says the content is in utf-8, but the
content itself contains the "ü" char (the ü HTML entity). That
confuses the XML::Parser module used on the script. As a workaround,
I had to force the script to always interpret its input as
ISO-8859-1.
Is this possible to undo the hack now? It would prevent "normal"
non-ASCII log messages from working properly.
--
Alexander E. Patrakov
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