Mercurial > hg
view hgweb.cgi @ 47941:5b9de38a0356 stable
narrow: fix commits of empty files
The problem is that when committing a new file with empty contents (or
in general empty file with filelog p1 = -1), hg commit with narrow
doesn't create a filelog revision at all, which causes failures in
further commands.
The problem seems to be that:
- hg thinks that instead of creating a new filelog revision, it can
use the filelog's p1 (the nullrev)
- because it thinks the file contents is the same in that revision and
in p1
- because `narrowfilelog.cmp(nullrev, b'')` is True (unlike with
`filelog.cmp`)
It's not clear to me which `cmp` behaves better. But I think it makes
sense to change the commit code to not to "reuse" the null rev when
adding an empty file with filelog p1 == filelog p2 == -1. This is
consistent with never writing the null rev in the manifest, which `hg
verify` claims is an invariant:
```
inside/c@4: manifest refers to unknown revision 000000000000
```
Differential Revision: https://phab.mercurial-scm.org/D11400
author | Valentin Gatien-Baron <vgatien-baron@janestreet.com> |
---|---|
date | Fri, 10 Sep 2021 14:57:00 -0400 |
parents | c102b704edb5 |
children | d5cd1fd690f3 |
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#!/usr/bin/env python3 # # An example hgweb CGI script, edit as necessary # See also https://mercurial-scm.org/wiki/PublishingRepositories # Path to repo or hgweb config to serve (see 'hg help hgweb') config = b"/path/to/repo/or/config" # Uncomment and adjust if Mercurial is not installed system-wide # (consult "installed modules" path from 'hg debuginstall'): # import sys; sys.path.insert(0, "/path/to/python/lib") # Uncomment to send python tracebacks to the browser if an error occurs: # import cgitb; cgitb.enable() from mercurial import demandimport demandimport.enable() from mercurial.hgweb import hgweb, wsgicgi application = hgweb(config) wsgicgi.launch(application)