On Tue, Apr 14, 2020 at 12:17:44PM -0400, J. Bruce Fields wrote:
> On Tue, Apr 14, 2020 at 12:20:16PM -0300, Jason Gunthorpe wrote:
> > On Tue, Apr 14, 2020 at 11:13:03AM -0400, J. Bruce Fields wrote:
> > > On Tue, Apr 14, 2020 at 09:19:31AM -0300, Jason Gunthorpe wrote:
> > > > On Mon, Apr 13, 2020 at 03:29:07PM -0400, J. Bruce Fields wrote:
> > > > > On Thu, Apr 09, 2020 at 02:47:50PM -0300, Jason Gunthorpe wrote:
> > > > > > On Thu, Apr 09, 2020 at 10:33:32AM -0400, Chuck Lever wrote:
> > > > > > > The commit ID is what automation should key off of. The short
> > > > > > > description is only for human consumption.
> > > > > >
> > > > > > Right, so if the actual commit message isn't included so humans can
> > > > > > read it then what was the point of including anything?
> > > > >
> > > > > Personally as a human reading commits in a terminal window I prefer the
> > > > > abbreviated form.
> > > >
> > > > Frankly, I think they are useless, picking one of yours at random:
> > > >
> > > > Fixes: 4e48f1cccab3 "NFSD: allow inter server COPY to have... "
> > > >
> > > > And sadly the '4e48f1cccab3' commit doesn't appear in Linus's tree so
> > >
> > > Ow, apologies. Looks like I rebased after writing that Fixes tag.
> > >
> > > I wonder if it's possible to make git warn....
> > >
> > > Looks like a pre-rebase hook could check the branch being rebased for
> > > "Fixes:" lines referencing commits on the rebased branch.
> >
> > I have some silly stuff to check patches before pushing them and it
> > includes checking the fixes lines because they are very often
> > wrong, both with wrong commit IDs and wrong subjects!
>
> I'd be interested in seeing it.
checkpatch.pl checks it or supposed to check.
commit a8dd86bf746256fbf68f82bc13356244c5ad8efa
Author: Matteo Croce <mcroce@xxxxxxxxxx>
Date: Wed Sep 25 16:46:38 2019 -0700
checkpatch.pl: warn on invalid commit id
It can happen that a commit message refers to an invalid commit id,
because the referenced hash changed following a rebase, or simply by
mistake. Add a check in checkpatch.pl which checks that an hash
referenced by a Fixes tag, or just cited in the commit message, is a valid
commit id.
$ scripts/checkpatch.pl <<'EOF'
Subject: [PATCH] test commit
Sample test commit to test checkpatch.pl
Commit 1da177e4c3f4 ("Linux-2.6.12-rc2") really exists,
commit 0bba044c4ce7 ("tree") is valid but not a commit,
while commit b4cc0b1c0cca ("unknown") is invalid.
Fixes: f0cacc14cade ("unknown")
Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
EOF
WARNING: Unknown commit id '0bba044c4ce7', maybe rebased or not pulled?
#8:
commit 0bba044c4ce7 ("tree") is valid but not a commit,
WARNING: Unknown commit id 'b4cc0b1c0cca', maybe rebased or not pulled?
#9:
while commit b4cc0b1c0cca ("unknown") is invalid.
WARNING: Unknown commit id 'f0cacc14cade', maybe rebased or not pulled?
#11:
Fixes: f0cacc14cade ("unknown")
total: 0 errors, 3 warnings, 4 lines checked
Link: http://lkml.kernel.org/r/20190711001640.13398-1-mcroce@xxxxxxxxxx
Signed-off-by: Matteo Croce <mcroce@xxxxxxxxxx>
Cc: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
