Re: [gentoo-portage-dev] [PATCH] sync: support sync-clone-depth for DVCS-es (git --depth)

[Brian Dolbec <dolsen@gentoo.org>]

On Sat, 17 Jan 2015 12:58:19 +0100
Michał Górny <mgorny@gentoo.org> wrote:

> Support sync-clone-depth with the default set to 1. This allows the
> user to reduce the number of historical commits fetched along with the
> repository (git --depth).
> ---
>  man/portage.5                       |  4 ++++
>  pym/portage/repository/config.py    | 19 ++++++++++++++++++-
>  pym/portage/sync/modules/git/git.py |  6 +++++-
>  3 files changed, 27 insertions(+), 2 deletions(-)
> 
> diff --git a/man/portage.5 b/man/portage.5
> index f0b0e20..3fb511c 100644
> --- a/man/portage.5
> +++ b/man/portage.5
> @@ -903,6 +903,10 @@ since operations performed by these tools are
> inherently .B priority
>  Specifies priority of given repository.
>  .TP
> +.B sync\-clone\-depth
> +Specifies clone depth to use for DVCS repositories. Defaults to 1
> (only +the newest commit). If set to 0, the depth is unlimited.
> +.TP
>  .B sync\-cvs\-repo
>  Specifies CVS repository.
>  .TP
> diff --git a/pym/portage/repository/config.py
> b/pym/portage/repository/config.py index 7e17e02..2c4ce8a 100644
> --- a/pym/portage/repository/config.py
> +++ b/pym/portage/repository/config.py
> @@ -88,7 +88,8 @@ class RepoConfig(object):
>  		'profile_formats', 'sign_commit', 'sign_manifest',
> 'sync_cvs_repo', 'sync_type', 'sync_umask', 'sync_uri', 'sync_user',
> 'thin_manifest', 'update_changelog', 'user_location', '_eapis_banned',
> -		'_eapis_deprecated', '_masters_orig')
> +		'_eapis_deprecated', '_masters_orig',
> +		'sync_clone_depth')
>  
>  	def __init__(self, name, repo_opts, local_config=True):
>  		"""Build a RepoConfig with options in repo_opts
> @@ -176,6 +177,21 @@ class RepoConfig(object):
>  			auto_sync = auto_sync.strip().lower()
>  		self.auto_sync = auto_sync
>  
> +		sync_clone_depth = None
> +		if self.sync_type in ('git',):
> +			sync_clone_depth =
> repo_opts.get('sync-clone-depth')
> +			if sync_clone_depth is not None:
> +				try:
> +					sync_clone_depth =
> int(sync_clone_depth)
> +				except ValueError:
> +					sync_clone_depth = None
> +				else:
> +					if sync_clone_depth == 0:
> +						sync_clone_depth =
> None
> +			else:
> +				sync_clone_depth = 1
> +		self.sync_clone_depth = sync_clone_depth
> +
> 


This is wrong, and counter productive to the plugin-system, requiring
that checks be performed by the plugin.


I also prefer sync_depth as a variable name, which matches the other
names.  'sync-cvs-repo' is a legacy exception and is replaced by the
auto-sync option.  I was hoping the git migration was done before this
was released so it could more easily be removed.




> 		# Not implemented.
>  		format = repo_opts.get('format')
>  		if format is not None:
> @@ -489,6 +505,7 @@ class RepoConfigLoader(object):
>  						for k in ('aliases',
> 'auto_sync', 'eclass_overrides', 'force', 'masters', 'priority',
> 'sync_cvs_repo', 'sync_type', 'sync_umask', 'sync_uri', 'sync_user',
> +							'sync_clone_depth',
>  							):
>  							v =
> getattr(repos_conf_opts, k, None) if v is not None:
> diff --git a/pym/portage/sync/modules/git/git.py
> b/pym/portage/sync/modules/git/git.py index 35943dd..b97d501 100644
> --- a/pym/portage/sync/modules/git/git.py
> +++ b/pym/portage/sync/modules/git/git.py
> @@ -63,9 +63,13 @@ class GitSync(SyncBase):
>  		sync_uri = self.repo.sync_uri
>  		if sync_uri.startswith("file://"):
>  			sync_uri = sync_uri[6:]
> -		exitcode = portage.process.spawn_bash("cd %s ; %s
> clone %s ." % \
> +		depth_arg = ''
> +		if self.repo.sync_clone_depth is not None:
> +			depth_arg = '--depth %d ' %
> self.repo.sync_clone_depth
> +		exitcode = portage.process.spawn_bash("cd %s ; %s
> clone %s%s ." % \ (portage._shell_quote(self.repo.location),
>  			self.bin_command,
> +			depth_arg,
>  			portage._shell_quote(sync_uri)),
>  			**portage._native_kwargs(self.spawn_kwargs))
>  		if exitcode != os.EX_OK:



-- 
Brian Dolbec <dolsen>