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# Call out to the `git rev-list` command
module Gitlab
module Git
class RevList
include ActiveModel::Validations
validates :env, git_environment_variables: true
attr_reader :project, :env
def initialize(oldrev, newrev, project:, env: nil)
@project = project
@env = env.presence || {}
@args = [Gitlab.config.git.bin_path,
"--git-dir=#{project.repository.path_to_repo}",
"rev-list",
"--max-count=1",
oldrev,
"^#{newrev}"]
end
def execute
if self.valid?
Gitlab::Popen.popen(@args, nil, @env.slice(*allowed_environment_variables))
else
Gitlab::Popen.popen(@args)
end
end
private
def allowed_environment_variables
%w(GIT_ALTERNATE_OBJECT_DIRECTORIES GIT_OBJECT_DIRECTORY)
end
end
end
end
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