Call me old, but this is 35+ years of experience talking.
My advice to you is: rename your files to eliminate the special chars.Even if you get this working, every person that installs your .rpm will curse you
b/c now they have to figure out how to special case your special filenames too,
Don't put spaces/(special chars) in filenames.
On Tue, Jun 29, 2021 at 5:32 AM Miro Hrončok <mhroncok@xxxxxxxxxx> wrote:
Hello,
we have a filelist generator and recently I've discovered a bug when the path
contains a space. Our generator generates one path fer line in a text file that
is to be used via %file -f.
Suppose the path is:
/usr/share/data/filename with spaces in it
In that case, when we literally include this line in the filelist, RPM says
that "with", "spaces", "in" and "it" does not start with "/".
Quite easily I was able to find out that we need to write the path like this:
"/usr/share/data/filename with spaces in it"
That works, so I was about to write a function (in Python) that puts the entire
path in "double quotes" if it contains some space characters (spaces, new
lines, etc.).
However, I have trouble figuring out how to properly escape a path like this:
/usr/share/data/filename with spaces and "quotes" in it
I've tried the following options with no luck:
'/usr/share/data/filename with spaces and "quotes" in it'
"/usr/share/data/filename with spaces and \"quotes\" in it"
"/usr/share/data/filename with spaces and \\"quotes\\" in it"
"/usr/share/data/filename with spaces and \\\"quotes\\\" in it"
While at it, I've also tried to figure out how to escape a % symbol in path.
Suppose the path is literally:
/usr/share/data/%version
I've tried the following options with no luck:
"/usr/share/data/%version"
/usr/share/data/%%version
/usr/share/data/%%%version
/usr/share/data/%%%%version
/usr/share/data/%%%%%version ...
This is my function so far, but it is quite incomplete:
import string
def escape_rpm_path(path):
"""
Escape special characters in paths
E.g. a space in path otherwise makes RPM think it's multiple paths,
unless we put it in "quotes".
Or a literal % symbol in path might be expanded as a macro if not escaped.
"""
if "%" in path:
# path = path.replace("%", "%%") is not enough
raise NotImplementedError("% symbol in paths, dunno")
if any(symbol in path for symbol in string.whitespace):
if '"' in path:
raise NotImplementedError('" symbol in path with spaces, dunno')
return f'"{path}"'
# I wish all paths in the world would end up here:
return path
What do I do? Is there a specification for the filelist syntax somewhere?
Thanks,
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
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