Re: Move to git is imminent - awaiting Stefan's approval

[Angelo Graziosi <angelo.graziosi@alice.it>]

Il 07/01/2014 15.24, Andreas Schwab ha scritto:
> Angelo Graziosi <angelo.graziosi@alice.it> writes:
>
>> I see that I can download the trunk source with
>>
>> $ wget
>> http://git.savannah.gnu.org/cgit/emacs.git/snapshot/emacs-trunk.tar.gz
>>
>> but how I can identify it?
>
> Normally git get-tar-commit-id should do it, but the archive wasn't
> produced by git archive, or it was created from a tree ID instead of a
> commit ID.  That looks like a bug in cgit.

I have downloaded

1) 
http://git.savannah.gnu.org/cgit/emacs.git/snapshot/emacs-e42fcf1482e2c9e9d93f459985d13dbbabc61956.tar.gz

2) http://git.savannah.gnu.org/cgit/emacs.git/snapshot/emacs-trunk.tar.gz

which correspond to the same trunk but I cannot identify the trunk: the 
command "git get-tar-commit-id" hangs.

If I have understood, with GIT the trunk is identified with the SHA1 
string like "e42fcf1482e2c9e9d93f459985d13dbbabc61956", so that in the 
first case I know the trunk "revision". Anyway, I would prefer that that 
string is stored inside the tree given by those tar-balls. For example 
in a text file, LAST-COMMIT-ID, so that one can know it with

$ cat emacs-e42fcf1482e2c9e9d93f459985d13dbbabc61956/LAST-COMMIT-ID

or

$ cat emacs-trunk/LAST-COMMIT-ID


In this way, I can create a build script with this skeleton:

...
wget http://git.savannah.gnu.org/cgit/emacs.git/snapshot/emacs-trunk.tar.gz

tar -xf emacs-trunk.tar.gz

rev=`cat emacs-trunk/LAST-COMMIT-ID`

autogen.sh
configure...
make bootstrap
make install DESTDIR=...

tar -cf emacs-$rev-bin.tar.xz $INSTDIR


Ciao,
  Angelo.