git/list[1] front-page[2] threads[3] people[4] search[5] about
 

Re: [RFC/PATCH 0/2] Re: [PATCH] config: warn on inaccessible files

From
Jeff King <peff@peff.net>
Date
Oct 14, 2012, 06:26 UTC
Message-ID
<20121014062650.GC13477@sigill.intra.peff.net>
In-Reply-To
<7vhapx1wlh.fsf@alter.siamese.dyndns.org>
On Sat, Oct 13, 2012 at 09:55:22PM -0700, Junio C Hamano wrote:
Show 20 quoted lines
> > When ~/.gitconfig is unreadable (EPERM), the messages are a symptom of
> > an older issue: the config file is being ignored.  Shouldn't git error
> > out instead so the permissions can be fixed?  E.g., if the sysadmin
> > has set "[branch] autoSetupRebase" to true in /etc/gitconfig and I
> > have set it to false in my own ~/.gitconfig, I'd rather see git error
> > out because ~/.gitconfig has become unreadable in a chmod gone wrong
> > than have a branch set up with the wrong settings and have to learn to
> > fix it up myself.
> >
> > In other words, how about something like this?
> 
> I think that is a reasonable issue to address, but I wonder if we
> should be sharing more code between these.  If the config side can
> be switched to unconditionally attempt to fopen and then deal with
> an error when it happens, we can get rid of access_or_{warn,die}
> and replace them with fopen_or_{warn,die} and use them from the two
> places (attr.c:read_attr_from_file() and the configuration stuff).
> 
> I haven't looked to see if that a too intrusive refactoring to be
> worth it, though.

Handling the error at the fopen level would eliminate a minor race condition (e.g., access() reports OK, then the file has its permissions changed, then we fopen and get EPERM, but ignore it). So it would not just be a refactoring, but would actually improve the code quality.

-Peff
Previous: Junio C HamanoNext: Jonathan Nieder
Message 11 of 13 in “Re: [PATCH] config: warn on inaccessible files”
  1. 0/2 Re: [PATCH] config: warn on inaccessible filesJonathan Nieder, Oct 14, 2012
  2. 1/2 config, gitignore: failure to access with ENOTDIR is okJonathan Nieder, Oct 14, 2012
  3. 2/2 config: treat user and xdg config permission problems as errorsJonathan Nieder, Oct 14, 2012
  4. Jeff KingOct 14, 2012
  5. Jonathan NiederOct 14, 2012
  6. 3/2 config doc: advertise GIT_CONFIG_NOSYSTEMJonathan Nieder, Oct 14, 2012
  7. 3/2 doc: advertise GIT_CONFIG_NOSYSTEMJonathan Nieder, Oct 14, 2012
  8. 4/2 config: exit on error accessing any config fileJonathan Nieder, Oct 14, 2012
  9. Jeff KingOct 14, 2012
  10. Junio C HamanoOct 14, 2012
  11. Jeff KingOct 14, 2012
  12. Jonathan NiederOct 14, 2012
  13. Jeff KingOct 14, 2012

Read the whole thread, see it on lore, or plain text.

$ cat FOOTERMessages come from the public archive at lore.kernel.org/git, fetched every hour. The front page is chosen and written each morning by an AI editor and can be wrong; the threads themselves are the record. About and API. For agents: an MCP server at https://gitlist.dev/mcp, and any thread, story or person page as Markdown by adding .md to its URL (or sending Accept: text/markdown). Details in /llms.txt.