Patchwork [2,of,3] subrepo: extend git version check to 3 digits

# HG changeset patch
# User Mathias De Maré <mathias.demare@gmail.com>
# Date 1418197281 -3600
#      Mit Dez 10 08:41:21 2014 +0100
# Node ID 239ccaaed78095a128fde4b1421de3d997068c6f
# Parent  5a05303a5e4753fb21e99c08635284c25dc8569f
subrepo: extend git version check to 3 digits

This allows more flexibility when a version check is required.
Some git features are introduced in a version where only
the 3rd digit changes.

On 12/10/2014 01:48 AM, Mathias De Maré wrote:
> # HG changeset patch
> # User Mathias De Maré <mathias.demare@gmail.com>
> # Date 1418197281 -3600
> #      Mit Dez 10 08:41:21 2014 +0100
> # Node ID 239ccaaed78095a128fde4b1421de3d997068c6f
> # Parent  5a05303a5e4753fb21e99c08635284c25dc8569f
> subrepo: extend git version check to 3 digits
>
> This allows more flexibility when a version check is required.
> Some git features are introduced in a version where only
> the 3rd digit changes.
>
> diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
> --- a/mercurial/subrepo.py
> +++ b/mercurial/subrepo.py
> @@ -1131,19 +1131,23 @@ class gitsubrepo(abstractsubrepo):
>              self._ui.warn(_('cannot retrieve git version\n'))
>          elif versionstatus == 'abort':
>              raise util.Abort(_('git subrepo requires at least 1.6.0 or later'))
>          elif versionstatus == 'warning':
>              self._ui.warn(_('git subrepo requires at least 1.6.0 or later\n'))
>  
>      @staticmethod
>      def _gitversion(out):
> +        m = re.search(r'^git version (\d+)\.(\d+)\.(\d+)', out)
> +        if m:
> +            return (int(m.group(1)), int(m.group(2)), int(m.group(3)))

I actually changed this to be two digits instead of three because this
doesn't work with rc versions of Git. The doctests cover this.

> +
>          m = re.search(r'^git version (\d+)\.(\d+)', out)
>          if m:
> -            return (int(m.group(1)), int(m.group(2)))
> +            return (int(m.group(1)), int(m.group(2)), 0)
>  
>          return -1
>  
>      @staticmethod
>      def _checkversion(out):
>          '''ensure git version is new enough
>  
>          >>> _checkversion = gitsubrepo._checkversion
> @@ -1167,19 +1171,19 @@ class gitsubrepo(abstractsubrepo):
>          'unknown'
>          '''
>          version = gitsubrepo._gitversion(out)
>          # git 1.4.0 can't work at all, but 1.5.X can in at least some cases,
>          # despite the docstring comment.  For now, error on 1.4.0, warn on
>          # 1.5.0 but attempt to continue.
>          if version == -1:
>              return 'unknown'
> -        if version < (1, 5):
> +        if version < (1, 5, 0):
>              return 'abort'
> -        elif version < (1, 6):
> +        elif version < (1, 6, 0):
>              return 'warning'
>          return 'ok'
>  
>      def _gitcommand(self, commands, env=None, stream=False):
>          return self._gitdir(commands, env=env, stream=stream)[0]
>  
>      def _gitdir(self, commands, env=None, stream=False):
>          return self._gitnodir(commands, env=env, stream=stream,
> _______________________________________________
> Mercurial-devel mailing list
> Mercurial-devel@selenic.com
> http://selenic.com/mailman/listinfo/mercurial-devel

On Wed, 2014-12-10 at 13:07 -0800, Siddharth Agarwal wrote:
> On 12/10/2014 01:48 AM, Mathias De Maré wrote:
> > # HG changeset patch
> > # User Mathias De Maré <mathias.demare@gmail.com>
> > # Date 1418197281 -3600
> > #      Mit Dez 10 08:41:21 2014 +0100
> > # Node ID 239ccaaed78095a128fde4b1421de3d997068c6f
> > # Parent  5a05303a5e4753fb21e99c08635284c25dc8569f
> > subrepo: extend git version check to 3 digits
> >
> > This allows more flexibility when a version check is required.
> > Some git features are introduced in a version where only
> > the 3rd digit changes.
> >
> > diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
> > --- a/mercurial/subrepo.py
> > +++ b/mercurial/subrepo.py
> > @@ -1131,19 +1131,23 @@ class gitsubrepo(abstractsubrepo):
> >              self._ui.warn(_('cannot retrieve git version\n'))
> >          elif versionstatus == 'abort':
> >              raise util.Abort(_('git subrepo requires at least 1.6.0 or later'))
> >          elif versionstatus == 'warning':
> >              self._ui.warn(_('git subrepo requires at least 1.6.0 or later\n'))
> >  
> >      @staticmethod
> >      def _gitversion(out):
> > +        m = re.search(r'^git version (\d+)\.(\d+)\.(\d+)', out)
> > +        if m:
> > +            return (int(m.group(1)), int(m.group(2)), int(m.group(3)))
> 
> I actually changed this to be two digits instead of three because this
> doesn't work with rc versions of Git. The doctests cover this.
> 
> > +
> >          m = re.search(r'^git version (\d+)\.(\d+)', out)
> >          if m:
> > -            return (int(m.group(1)), int(m.group(2)))
> > +            return (int(m.group(1)), int(m.group(2)), 0)

It falls through to here? So it becomes a question of whether we need to
distinguish between x.y-rc (and friends) and x.y.0, right?

On 12/10/2014 01:31 PM, Matt Mackall wrote:
> On Wed, 2014-12-10 at 13:07 -0800, Siddharth Agarwal wrote:
>> On 12/10/2014 01:48 AM, Mathias De Maré wrote:
>>> # HG changeset patch
>>> # User Mathias De Maré <mathias.demare@gmail.com>
>>> # Date 1418197281 -3600
>>> #      Mit Dez 10 08:41:21 2014 +0100
>>> # Node ID 239ccaaed78095a128fde4b1421de3d997068c6f
>>> # Parent  5a05303a5e4753fb21e99c08635284c25dc8569f
>>> subrepo: extend git version check to 3 digits
>>>
>>> This allows more flexibility when a version check is required.
>>> Some git features are introduced in a version where only
>>> the 3rd digit changes.
>>>
>>> diff --git a/mercurial/subrepo.py b/mercurial/subrepo.py
>>> --- a/mercurial/subrepo.py
>>> +++ b/mercurial/subrepo.py
>>> @@ -1131,19 +1131,23 @@ class gitsubrepo(abstractsubrepo):
>>>              self._ui.warn(_('cannot retrieve git version\n'))
>>>          elif versionstatus == 'abort':
>>>              raise util.Abort(_('git subrepo requires at least 1.6.0 or later'))
>>>          elif versionstatus == 'warning':
>>>              self._ui.warn(_('git subrepo requires at least 1.6.0 or later\n'))
>>>  
>>>      @staticmethod
>>>      def _gitversion(out):
>>> +        m = re.search(r'^git version (\d+)\.(\d+)\.(\d+)', out)
>>> +        if m:
>>> +            return (int(m.group(1)), int(m.group(2)), int(m.group(3)))
>> I actually changed this to be two digits instead of three because this
>> doesn't work with rc versions of Git. The doctests cover this.
>>
>>> +
>>>          m = re.search(r'^git version (\d+)\.(\d+)', out)
>>>          if m:
>>> -            return (int(m.group(1)), int(m.group(2)))
>>> +            return (int(m.group(1)), int(m.group(2)), 0)
> It falls through to here? So it becomes a question of whether we need to
> distinguish between x.y-rc (and friends) and x.y.0, right?
>
Ah, I didn't notice that. I'm OK with not distinguishing between rc and
0 unless in the future we need to.