Re: topological index field for commit objects

From: Stefan Beller <sbeller@google.com>
Date: Jun 29, 2016, 21:37 UTC
Message-ID: <CAGZ79kbjntaTQPNdw9u07AJX3pTWdyKB1fiPqJZ=DZRzNvnKzg@mail.gmail.com>
In-Reply-To: <CAGZ79kZNnbrKFaKGchZ0r5wKCs7pz4RcyYq=0rnD5qSd8XDKXw@mail.gmail.com>

On Wed, Jun 29, 2016 at 1:54 PM, Stefan Beller <sbeller@google.com> wrote:

> Chances are that the 10 years of history may be correct time wise as long
> as people don't introduce a bad date malevolently.
>

To answer my own speculation: Even git.git violates the timing property, so there is no hope to find many projects to have "parents committer date < committer date"

$ git log --format="%H %ct %P" HEAD | {

Show 10 quoted lines

> while read sha sha_date parents ; do
> for p in $parents ; do
> # echo "$id, $parents, $p"
> pd=$(git show -s --format="%ct" $p)
> if test $pd -gt $sha_date ; then
> echo $sha
> fi
> done
> done
> }

619a644d6daef56d70aeca85514e2d281eb483a5 776398709dee4050fc194fec45c5818ba9b01afe ed19f367220a50e4e2a5c1a00b03c14eafcaba89

(out of curiosity these are:) (2009-10-18 12:34:56, "checkout A...B" switches to the merge base between A and B) (2007-09-01 23:53:47, Keep last used delta base in the delta window) (2006-03-03 23:29:56, Add a Documentation/git-tools.txt)