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# == Define: python::requirements
#
# Installs and manages Python packages from requirements file.
#
# === Parameters
#
# [*requirements*]
# Path to the requirements file. Defaults to the resource name
#
# [*virtualenv*]
# virtualenv to run pip in. Default: system-wide
#
# [*proxy*]
# Proxy server to use for outbound connections. Default: none
#
# === Examples
#
# python::requirements { '/var/www/project1/requirements.txt':
# virtualenv => '/var/www/project1',
# proxy => 'http://proxy.domain.com:3128',
# }
#
# === Authors
#
# Sergey Stankevich
# Ashley Penney
#
define python::requirements (
$requirements = $name,
$virtualenv = 'system',
$proxy = false
) {
$cwd = $virtualenv ? {
'system' => '/',
default => "${virtualenv}/bin/pip",
}
$pip_env = $virtualenv ? {
'system' => '`which pip`',
default => "${virtualenv}/bin/pip",
}
$proxy_flag = $proxy ? {
false => '',
default => "--proxy=${proxy}",
}
$req_crc = "${requirements}.sha1"
# This will ensure multiple python::virtualenv definitions can share the
# the same requirements file.
if !defined(File[$requirements]) {
file { $requirements:
ensure => present,
mode => '0644',
owner => 'root',
group => 'root',
replace => false,
content => '# Puppet will install and/or update pip packages listed here',
}
}
# SHA1 checksum to detect changes
exec { "python_requirements_check_${name}":
command => "sha1sum ${requirements} > ${req_crc}",
unless => "sha1sum -c ${req_crc}",
require => File[$requirements],
}
exec { "python_requirements_update_${name}":
provider => shell,
command => "${pip_env} install ${proxy_flag} -Ur ${requirements}",
cwd => $cwd,
refreshonly => true,
timeout => 1800,
subscribe => Exec["python_requirements_check_${name}"],
}
}
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