[gentoo-user] Status of a GIT repository

[gentoo-user] Status of a GIT repository

[Helmut Jarausch]

Hi,
I have no experience with GIT.

I'd like to determine if a GIT repository in Gentoo is up-to-date.
Normally, a GIT folder has a '.git' subfolder. Using 'git status' in  
such a GIT folder works fine.

But the subfolders in /usr/portage/distfiles/git3-src don't contain a  
'.git' subfolder.
A plain 'git status' in such a subfolder doesn't work - I get "fatal:  
This operation must be run in a work tree".

Is there a means to determine the status of a Gentoo-GIT-folder?

Background: I'd like to check if anything has changed in the GIT  
repository before I run an 'emerge -u' for that.

Many thanks for a hint,
Helmut

Re: [gentoo-user] Status of a GIT repository

[Vadim A. Misbakh-Soloviov]

В письме от среда, 20 декабря 2017 г. 17:04:33 +07 пользователь Helmut 
Jarausch написал:
> Hi,
> I have no experience with GIT.
> 
> I'd like to determine if a GIT repository in Gentoo is up-to-date.
> Normally, a GIT folder has a '.git' subfolder. Using 'git status' in
> such a GIT folder works fine.
> 
> But the subfolders in /usr/portage/distfiles/git3-src don't contain a
> '.git' subfolder.
> A plain 'git status' in such a subfolder doesn't work - I get "fatal:
> This operation must be run in a work tree".
> 
> Is there a means to determine the status of a Gentoo-GIT-folder?
> 
> Background: I'd like to check if anything has changed in the GIT
> repository before I run an 'emerge -u' for that.
> 
> Many thanks for a hint,
> Helmut

1) there is no "Gentoo-GIT-folder". The things in $DISTDIR/git3-src is called 
"bare" repositories (i.e. it is that ".git" folder itself, without "unpacked" 
work tree, like you have in $PORTDIR)
2) Although, all the ways to check it would be too hard for your purpose.
3) but there is nice tool for your purpose: it's called `app-portage/smart-
live-rebuild`.
So, just emerge it, and then just run `emerge @smart-live-rebuild` (it 
provides special virtual set) periodically. It will perform all the checks for 
you.

Re: [gentoo-user] Status of a GIT repository

[Marc Joliet]

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Am Mittwoch, 20. Dezember 2017, 11:28:31 CET schrieb Vadim A. Misbakh-Soloviov:
> В письме от среда, 20 декабря 2017 г. 17:04:33 +07 пользователь Helmut
> 
> Jarausch написал:
> > Hi,
> > I have no experience with GIT.
> > 
> > I'd like to determine if a GIT repository in Gentoo is up-to-date.
> > Normally, a GIT folder has a '.git' subfolder. Using 'git status' in
> > such a GIT folder works fine.
> > 
> > But the subfolders in /usr/portage/distfiles/git3-src don't contain a
> > '.git' subfolder.
> > A plain 'git status' in such a subfolder doesn't work - I get "fatal:
> > This operation must be run in a work tree".
> > 
> > Is there a means to determine the status of a Gentoo-GIT-folder?
> > 
> > Background: I'd like to check if anything has changed in the GIT
> > repository before I run an 'emerge -u' for that.
> > 
> > Many thanks for a hint,
> > Helmut
> 
> 1) there is no "Gentoo-GIT-folder". The things in $DISTDIR/git3-src is
> called "bare" repositories (i.e. it is that ".git" folder itself, without
> "unpacked" work tree, like you have in $PORTDIR)
> 2) Although, all the ways to check it would be too hard for your purpose.
> 
> 3) but there is nice tool for your purpose: it's called `app-portage/smart-
> live-rebuild`.
> So, just emerge it, and then just run `emerge @smart-live-rebuild` (it
> provides special virtual set) periodically. It will perform all the checks
> for you.

You wrote everything I was going to, and also something I didn't know :) .  I always thought 
you had to invoke smart-live-rebuild as its own command and never realised that it also 
provided a special set.  Cool!

I'll just add to your second point that while you can operate within a bare repository (and 
some commands work directly, e.g., "git gc"), they are usually what you push to and fetch 
from (meaning that you don't need a special server to host a git repo, you can just put a bare 
repository on, e.g., a shared folder and use that as your origin).

Greetings
-- 
Marc Joliet
--
"People who think they know everything really annoy those of us who know we
don't" - Bjarne Stroustrup


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Re: [gentoo-user] Status of a GIT repository

[Helmut Jarausch]

On 12/20/2017 11:28:31 AM, Vadim A. Misbakh-Soloviov wrote:
> В письме от среда, 20 декабря 2017 г. 17:04:33 +07 пользователь Helmut
> Jarausch написал:
> > Hi,
> > I have no experience with GIT.
> >
> > I'd like to determine if a GIT repository in Gentoo is up-to-date.
> > Normally, a GIT folder has a '.git' subfolder. Using 'git status' in
> > such a GIT folder works fine.
> >
> > But the subfolders in /usr/portage/distfiles/git3-src don't contain  
> a
> > '.git' subfolder.
> > A plain 'git status' in such a subfolder doesn't work - I get  
> "fatal:
> > This operation must be run in a work tree".
> >
> > Is there a means to determine the status of a Gentoo-GIT-folder?
> >
> > Background: I'd like to check if anything has changed in the GIT
> > repository before I run an 'emerge -u' for that.
> >
> > Many thanks for a hint,
> > Helmut
> 
> 1) there is no "Gentoo-GIT-folder". The things in $DISTDIR/git3-src  
> is called
> "bare" repositories (i.e. it is that ".git" folder itself, without  
> "unpacked"
> work tree, like you have in $PORTDIR)
> 2) Although, all the ways to check it would be too hard for your  
> purpose.
> 3) but there is nice tool for your purpose: it's called  
> `app-portage/smart-
> live-rebuild`.
> So, just emerge it, and then just run `emerge @smart-live-rebuild` (it
> provides special virtual set) periodically. It will perform all the  
> checks for
> you.

Many thanks! This looks like it saves me a lot of work ( I was willing  
to write a Python script myself).
Helmut

[gentoo-user] Re: Status of a GIT repository

[Ian Zimmerman]

On 2017-12-20 17:28, Vadim A. Misbakh-Soloviov wrote:

> 2) Although, all the ways to check it would be too hard for your purpose.

Well, "git log" still works in a bare repo, right?

It is true that it would be necessary to do it in each subtree of
git3-src, and remember the result somehow.

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