__cdist_log_level=<log level int value>; __cdist_log_level_name=<log level name> (#574)

cdist/conf/type/__install_stage/gencode-remote

@@ -22,16 +22,14 @@ uri="$(cat "$__object/parameter/uri" 2>/dev/null \
    || echo "$__object_id")"
 target="$(cat "$__object/parameter/target")"
 
-case "$__cdist_log_level" in
-    DEBUG|TRACE)
-        curl="curl"
-        tar="tar -xvzp"
-    ;;
-    *)
-        curl="curl -s"
-        tar="tar -xzp"
-    ;;
-esac
+if [ "$__cdist_log_level" -le "10" ]
+then
+    curl="curl"
+    tar="tar -xvzp"
+else
+    curl="curl -s"
+    tar="tar -xzp"
+fi
 
 if [ -f "$__object/parameter/insecure" ] ; then
    curl="$curl -k"

cdist/configuration.py

@@ -26,6 +26,7 @@ import cdist
 import cdist.argparse
 import re
 import multiprocessing
+import logging
 
 
 class Singleton(type):
@@ -215,6 +216,24 @@ class ArchivingOption(SelectOption):
             return val
 
 
+class LogLevelOption(OptionBase):
+    def __init__(self):
+        super().__init__('__cdist_log_level')
+
+    def converter(self):
+        def log_level_converter(val):
+            try:
+                val = logging.getLevelName(int(val))
+                return self.translate(val)
+            except (ValueError, AttributeError):
+                raise ValueError("Invalid {} value: {}.".format(
+                    self.name, val))
+        return log_level_converter
+
+    def translate(self, val):
+        return VerbosityOption().translate(val)
+
+
 _ARG_OPTION_MAPPING = {
     'beta': 'beta',
     'cache_path_pattern': 'cache_path_pattern',
@@ -281,6 +300,9 @@ class Configuration(metaclass=Singleton):
         '__cdist_log_level': 'verbosity',
     }
     ENV_VAR_BOOLEAN_OPTIONS = ('CDIST_BETA', )
+    ENV_VAR_OPTIONS = {
+        '__cdist_log_level': LogLevelOption(),
+    }
 
     ARG_OPTION_MAPPING = _ARG_OPTION_MAPPING
     ADJUST_ARG_OPTION_MAPPING = {
@@ -366,8 +388,11 @@ class Configuration(metaclass=Singleton):
                 if option in self.ENV_VAR_BOOLEAN_OPTIONS:
                     d[dst_opt] = True
                 else:
-                    option_object = self.CONFIG_FILE_OPTIONS[section][dst_opt]
-                    converter = option_object.converter()
+                    if option in self.ENV_VAR_OPTIONS:
+                        opt = self.ENV_VAR_OPTIONS[option]
+                    else:
+                        opt = self.CONFIG_FILE_OPTIONS[section][dst_opt]
+                    converter = opt.converter()
                     val = env[option]
                     newval = converter(val)
                     d[dst_opt] = newval

cdist/core/__init__.py

@@ -28,4 +28,4 @@ from cdist.core.explorer import Explorer
 from cdist.core.manifest import Manifest
 from cdist.core.code import Code
 from cdist.core.util import listdir
-from cdist.core.util import log_level_env_var_val
+from cdist.core.util import log_level_env_var_val, log_level_name_env_var_val

cdist/core/code.py

@@ -109,6 +109,8 @@ class Code(object):
             '__files': self.local.files_path,
             '__target_host_tags': self.local.target_host_tags,
             '__cdist_log_level': util.log_level_env_var_val(local.log),
+            '__cdist_log_level_name': util.log_level_name_env_var_val(
+                local.log),
         }
 
     def _run_gencode(self, cdist_object, which):

cdist/core/explorer.py

@@ -80,6 +80,8 @@ class Explorer(object):
             '__explorer': self.remote.global_explorer_path,
             '__target_host_tags': self.local.target_host_tags,
             '__cdist_log_level': util.log_level_env_var_val(self.log),
+            '__cdist_log_level_name': util.log_level_name_env_var_val(
+                self.log),
         }
         self._type_explorers_transferred = []
         self.jobs = jobs

cdist/core/manifest.py

@@ -113,6 +113,8 @@ class Manifest(object):
             '__files': self.local.files_path,
             '__target_host_tags': self.local.target_host_tags,
             '__cdist_log_level': util.log_level_env_var_val(self.log),
+            '__cdist_log_level_name': util.log_level_name_env_var_val(
+                self.log),
         }
 
     def _open_logger(self):

cdist/core/util.py

@@ -38,4 +38,8 @@ def _ishidden(path):
 
 
 def log_level_env_var_val(log):
+    return str(log.getEffectiveLevel())
+
+
+def log_level_name_env_var_val(log):
     return logging.getLevelName(log.getEffectiveLevel())

cdist/emulator.py

@@ -112,8 +112,7 @@ class Emulator(object):
         if '__cdist_log_level' in self.env:
             try:
                 loglevel = self.env['__cdist_log_level']
-                # For a text level it returns its numerical value.
-                level = logging.getLevelName(loglevel)
+                level = int(loglevel)
             except ValueError:
                 level = logging.WARNING
         else:

cdist/test/code/__init__.py

@@ -101,7 +101,9 @@ class CodeTestCase(test.CdistTestCase):
         self.assertEqual(output_dict['__files'], self.local.files_path)
         self.assertEqual(output_dict['__target_host_tags'],
                          self.local.target_host_tags)
-        self.assertEqual(output_dict['__cdist_log_level'], 'WARNING')
+        self.assertEqual(output_dict['__cdist_log_level'],
+                         str(logging.WARNING))
+        self.assertEqual(output_dict['__cdist_log_level_name'], 'WARNING')
 
     def test_run_gencode_remote_environment(self):
         output_string = self.code.run_gencode_remote(self.cdist_object)
@@ -127,7 +129,9 @@ class CodeTestCase(test.CdistTestCase):
         self.assertEqual(output_dict['__files'], self.local.files_path)
         self.assertEqual(output_dict['__target_host_tags'],
                          self.local.target_host_tags)
-        self.assertEqual(output_dict['__cdist_log_level'], 'WARNING')
+        self.assertEqual(output_dict['__cdist_log_level'],
+                         str(logging.WARNING))
+        self.assertEqual(output_dict['__cdist_log_level_name'], 'WARNING')
 
     def test_transfer_code_remote(self):
         self.cdist_object.code_remote = self.code.run_gencode_remote(

cdist/test/code/fixtures/conf/type/__dump_environment/gencode-local

@@ -11,3 +11,4 @@ echo "echo __object_name: $__object_name"
 echo "echo __files: $__files"
 echo "echo __target_host_tags: $__target_host_tags"
 echo "echo __cdist_log_level: $__cdist_log_level"
+echo "echo __cdist_log_level_name: $__cdist_log_level_name"

cdist/test/configuration/__init__.py

@@ -27,7 +27,7 @@ import os.path as op
 import argparse
 from cdist import test
 import cdist.argparse as cap
-
+import logging
 
 my_dir = op.abspath(op.dirname(__file__))
 fixtures = op.join(my_dir, 'fixtures')
@@ -124,6 +124,18 @@ class ConfigurationOptionsTestCase(test.CdistTestCase):
         self.assertEqual(converter(value), ['spam', 'eggs', 'ham', ])
         self.assertIsNone(converter(''))
 
+    def test_LogLevelOption(self):
+        option = cc.LogLevelOption()
+        converter = option.converter()
+        value = str(logging.DEBUG)
+        conv_val = converter(value)
+        self.assertEqual(conv_val, cap.VERBOSE_DEBUG)
+        value = str(logging.INFO)
+        conv_val = converter(value)
+        self.assertEqual(conv_val, cap.VERBOSE_INFO)
+        for value in ('11', '80', 'a'):
+            self.assertRaises(ValueError, converter, value)
+
 
 class ConfigurationTestCase(test.CdistTestCase):
 
@@ -234,17 +246,17 @@ class ConfigurationTestCase(test.CdistTestCase):
             os.remove(custom_config_file)
 
     def test_singleton(self):
-        x = cc.Configuration(None)
+        x = cc.Configuration(None, env={}, config_files=())
         args = argparse.Namespace()
         args.a = 'a'
-        y = cc.Configuration(args)
+        y = cc.Configuration(args, env={}, config_files=())
         self.assertIs(x, y)
 
     def test_non_singleton(self):
-        x = cc.Configuration(None, singleton=False)
+        x = cc.Configuration(None, env={}, config_files=(), singleton=False)
         args = argparse.Namespace()
         args.a = 'a'
-        y = cc.Configuration(args, singleton=False)
+        y = cc.Configuration(args, env={}, config_files=(),  singleton=False)
         self.assertIsNot(x, y)
 
     def test_read_config_file(self):
@@ -1122,6 +1134,39 @@ class ConfigurationTestCase(test.CdistTestCase):
                                          config_files=config_files)
         self.assertEqual(configuration.config, expected_config_dict)
 
+    def test_configuration_cdist_log_level_env_var(self):
+        env = {
+            '__cdist_log_level': str(logging.DEBUG),
+        }
+        args = argparse.Namespace()
+
+        expected_config_dict = {
+            'GLOBAL': {
+                'verbosity': cap.VERBOSE_DEBUG,
+            },
+        }
+
+        # bypass singleton so we can test further
+        cc.Configuration.instance = None
+
+        configuration = cc.Configuration(args, env=env,
+                                         config_files=())
+        self.assertEqual(configuration.config, expected_config_dict)
+
+        # bypass singleton so we can test further
+        cc.Configuration.instance = None
+        env['__cdist_log_level'] = '80'
+        with self.assertRaises(ValueError):
+            configuration = cc.Configuration(args, env=env,
+                                             config_files=())
+
+        # bypass singleton so we can test further
+        cc.Configuration.instance = None
+        env['__cdist_log_level'] = 'x'
+        with self.assertRaises(ValueError):
+            configuration = cc.Configuration(args, env=env,
+                                             config_files=())
+
 
 if __name__ == "__main__":
     import unittest

cdist/test/emulator/__init__.py

@@ -124,7 +124,7 @@ class EmulatorTestCase(test.CdistTestCase):
         emu = emulator.Emulator(argv, env=self.env)
         emu_loglevel = emu.log.getEffectiveLevel()
         self.assertEqual(emu_loglevel, logging.WARNING)
-        self.env['__cdist_log_level'] = logging.getLevelName(logging.DEBUG)
+        self.env['__cdist_log_level'] = str(logging.DEBUG)
         emu = emulator.Emulator(argv, env=self.env)
         emu_loglevel = emu.log.getEffectiveLevel()
         self.assertEqual(emu_loglevel, logging.DEBUG)

cdist/test/explorer/__init__.py

@@ -31,6 +31,7 @@ from cdist import test
 from cdist.exec import local
 from cdist.exec import remote
 from cdist.core import explorer
+import logging
 
 import os.path as op
 my_dir = op.abspath(op.dirname(__file__))
@@ -233,7 +234,9 @@ class ExplorerClassTestCase(test.CdistTestCase):
                          self.remote.global_explorer_path)
         self.assertEqual(output_dict['__target_host_tags'],
                          self.local.target_host_tags)
-        self.assertEqual(output_dict['__cdist_log_level'], 'WARNING')
+        self.assertEqual(output_dict['__cdist_log_level'],
+                         str(logging.WARNING))
+        self.assertEqual(output_dict['__cdist_log_level_name'], 'WARNING')
 
 
 if __name__ == '__main__':

cdist/test/explorer/fixtures/conf/type/__dump_env/explorer/dump

@@ -6,3 +6,4 @@ echo "__target_fqdn: $__target_fqdn"
 echo "__explorer: $__explorer"
 echo "__target_host_tags: $__target_host_tags"
 echo "__cdist_log_level: $__cdist_log_level"
+echo "__cdist_log_level_name: $__cdist_log_level_name"

cdist/test/manifest/__init__.py

@@ -99,7 +99,9 @@ class ManifestTestCase(test.CdistTestCase):
         self.assertEqual(output_dict['__files'], self.local.files_path)
         self.assertEqual(output_dict['__target_host_tags'],
                          self.local.target_host_tags)
-        self.assertEqual(output_dict['__cdist_log_level'], 'VERBOSE')
+        self.assertEqual(output_dict['__cdist_log_level'],
+                         str(logging.VERBOSE))
+        self.assertEqual(output_dict['__cdist_log_level_name'], 'VERBOSE')
         self.log.setLevel(old_loglevel)
 
     def test_type_manifest_environment(self):
@@ -139,7 +141,9 @@ class ManifestTestCase(test.CdistTestCase):
         self.assertEqual(output_dict['__files'], self.local.files_path)
         self.assertEqual(output_dict['__target_host_tags'],
                          self.local.target_host_tags)
-        self.assertEqual(output_dict['__cdist_log_level'], 'VERBOSE')
+        self.assertEqual(output_dict['__cdist_log_level'],
+                         str(logging.VERBOSE))
+        self.assertEqual(output_dict['__cdist_log_level_name'], 'VERBOSE')
         self.log.setLevel(old_loglevel)
 
     def test_loglevel_env_setup(self):
@@ -147,7 +151,10 @@ class ManifestTestCase(test.CdistTestCase):
         self.log.setLevel(logging.DEBUG)
         manifest = cdist.core.manifest.Manifest(self.target_host, self.local)
         self.assertTrue("__cdist_log_level" in manifest.env)
-        self.assertEqual(manifest.env["__cdist_log_level"], 'DEBUG')
+        self.assertTrue("__cdist_log_level_name" in manifest.env)
+        self.assertEqual(manifest.env["__cdist_log_level"],
+                         str(logging.DEBUG))
+        self.assertEqual(manifest.env["__cdist_log_level_name"], 'DEBUG')
         self.log.setLevel(current_level)
 
 

cdist/test/manifest/fixtures/conf/manifest/dump_environment

@@ -11,4 +11,5 @@ __manifest: $__manifest
 __files: $__files
 __target_host_tags: $__target_host_tags
 __cdist_log_level: $__cdist_log_level
+__cdist_log_level_name: $__cdist_log_level_name
 DONE

cdist/test/manifest/fixtures/conf/type/__dump_environment/manifest

@@ -15,4 +15,5 @@ __object_name: $__object_name
 __files: $__files
 __target_host_tags: $__target_host_tags
 __cdist_log_level: $__cdist_log_level
+__cdist_log_level_name: $__cdist_log_level_name
 DONE

docs/changelog

@@ -10,12 +10,13 @@ next:
 	* Type __daemontools: Improve it on FreeBSD (Kamila Součková)
 	* Type __package_pkg_openbsd: Fix use of --name (Philippe Gregoire)
 	* Type __package_pkg_openbsd: Fix pkg_version explorer (Philippe Gregoire)
-	* Documentation: Document __cdist_loglevel type variable (Darko Poljak)
-	* Type __install_stage: Fix __debug -> __cdist_loglevel (Darko Poljak)
-	* Core, types: Make __cdist_loglevel value more expressive (Darko Poljak)
-	* Core: Add -l/--log-level option (Darko Poljak)
-	* Core: __cdist_loglevel -> __cdist_log_level and make cdist honor __cdist_log_level env var (Darko Poljak)
 	* Type __prometheus_exporter: Fixes + go version bump (Kamila Součková)
+	* Core, types: __cdist_loglevel -> __cdist_log_level (Darko Poljak)
+	* Core, types: Add __cdist_log_level_name env var with vlaue of log level name (Darko Poljak)
+	* Core: Make cdist honor __cdist_log_level env var (Darko Poljak)
+	* Core: Add -l/--log-level option (Darko Poljak)
+	* Type __install_stage: Fix __debug -> __cdist_log_level (Darko Poljak)
+	* Documentation: Document __cdist_log_level (Darko Poljak)
 
 4.6.1: 2017-08-30
 	* Type __user: Explore with /etc files (passwd, group, shadow) (Philippe Gregoire)

docs/src/cdist-reference.rst.sh

@@ -198,9 +198,27 @@ Environment variables (for reading)
 -----------------------------------
 The following environment variables are exported by cdist:
 
-__cdist_log_level
-    String value of cdist log level. One of OFF, ERROR, WARNING, INFO,
-    VERBOSE, DEBUG and TRACE.
+__cdist_log_level, __cdist_log_level_name
+    cdist log level value and cdist log level name. One of:
+
+    +----------------+-----------------+
+    | Log level name | Log level value |
+    +================+=================+
+    | OFF            | 60              |
+    +----------------+-----------------+
+    | ERROR          | 40              |
+    +----------------+-----------------+
+    | WARNING        | 30              |
+    +----------------+-----------------+
+    | INFO           | 20              |
+    +----------------+-----------------+
+    | VERBOSE        | 15              |
+    +----------------+-----------------+
+    | DEBUG          | 10              |
+    +----------------+-----------------+
+    | TRACE          | 5               |
+    +----------------+-----------------+
+
     Available for: initial manifest, explorer, type manifest, type explorer,
     type gencode.
 __explorer
@@ -266,8 +284,27 @@ require
     Setup dependencies between objects (see \`cdist manifest <cdist-manifest.html>\`_).
 
 __cdist_log_level
-    String value of cdist log level. One of OFF, ERROR, WARNING, INFO,
-    VERBOSE, DEBUG and TRACE. If set cdist will set this log level in
+    cdist log level value. One of:
+
+    +----------------+-----------------+
+    | Log level      | Log level value |
+    +================+=================+
+    | OFF            | 60              |
+    +----------------+-----------------+
+    | ERROR          | 40              |
+    +----------------+-----------------+
+    | WARNING        | 30              |
+    +----------------+-----------------+
+    | INFO           | 20              |
+    +----------------+-----------------+
+    | VERBOSE        | 15              |
+    +----------------+-----------------+
+    | DEBUG          | 10              |
+    +----------------+-----------------+
+    | TRACE          | 5               |
+    +----------------+-----------------+
+
+    If set cdist will set this log level in
     accordance with configuration rules. If cdist invokation is used
     in types then nested cdist will honor this specified log level if
     not specified otherwise while invoking it.

docs/src/cdist-type.rst

@@ -333,9 +333,28 @@ So when you generate a script with the following content, it will work:
 
 Log level in types
 ------------------
-cdist log level can be accessed from __cdist_log_level variable.
-Value is a string, one of OFF, ERROR, WARNING, INFO, VERBOSE, DEBUG and
-TRACE. It is available for initial manifest, explorer, type manifest,
+cdist log level can be accessed from __cdist_log_level variable.One of:
+
+    +----------------+-----------------+
+    | Log level      | Log level value |
+    +================+=================+
+    | OFF            | 60              |
+    +----------------+-----------------+
+    | ERROR          | 40              |
+    +----------------+-----------------+
+    | WARNING        | 30              |
+    +----------------+-----------------+
+    | INFO           | 20              |
+    +----------------+-----------------+
+    | VERBOSE        | 15              |
+    +----------------+-----------------+
+    | DEBUG          | 10              |
+    +----------------+-----------------+
+    | TRACE          | 5               |
+    +----------------+-----------------+
+
+
+It is available for initial manifest, explorer, type manifest,
 type explorer, type gencode.