On 04/28/2016 09:30 AM, Lukas Slebodnik wrote:
> On (27/04/16 15:18), Stephen Gallagher wrote:
>> On 04/27/2016 05:57 AM, Pavel Březina wrote:
>>> On 04/26/2016 05:08 PM, Stephen Gallagher wrote:
>>>> Our users constantly make the mistake of typing `debug = 9` in the 
>>>> sssd.conf
>>>> instead of `debug_level = 9` as would be correct. This happens 
>>>> frequently-enough
>>>> that we should just alias it rather than continue to have people make 
>>>> mistakes.
>>>>
>>>> Resolves:
>>>> https://fedorahosted.org/sssd/ticket/2999
>>>
>>> I don't really oppose but I'd rather print a warning instead of aliasing it,
>>> otherwise we can end up aliasing everything. It may be done as part of
>>> configuration check patches that should detect typos.'
>>
>>
>> Yeah, I don't want this to become a common thing (we shouldn't really be
>> aliasing anything), but this is such a *common* mistake that it's bordering 
>> on
>> ridiculous not to just make an exception here.
>>
>> When you get right down to it, most projects use the more abbreviated term
>> "debug" anyway, so we're kind of the outlier.
>>
>> (You will notice I intentionally didn't add it to the manual; this is meant 
>> to
>> be a hidden convenience feature, not the primary method. Also, `debug_level`
>> will always overrule `debug` if both are present.)
>>
> I don't prefer undocumeted options.
> If we really want to have an alias then it should be documented.
> Otherwise users might wonder why it magicaly works.
> 
> The option/alias will need to be added to the list of valid options anyway
> with the config validation (coming soon)
> 

Ok, I added documentation and tests for it. See attached patch.

From 4a753d3a754ffa5a3e48eb6ba2fd8ebc73fd20be Mon Sep 17 00:00:00 2001
From: Stephen Gallagher <[email protected]>
Date: Tue, 26 Apr 2016 11:04:36 -0400
Subject: [PATCH] DEBUG: Add `debug` alias for debug_level

Our users constantly make the mistake of typing `debug = 9` in the
sssd.conf instead of `debug_level = 9` as would be correct. This
happens frequently-enough that we should just alias it rather than
continue to have people make mistakes.

Resolves:
https://fedorahosted.org/sssd/ticket/2999
---
 src/confdb/confdb.h                  |  1 +
 src/config/SSSDConfig/__init__.py.in |  1 +
 src/config/SSSDConfigTest.py         |  3 +++
 src/config/etc/sssd.api.conf         |  2 ++
 src/man/sssd.conf.5.xml              | 13 +++++++++++++
 src/util/server.c                    | 15 ++++++++++++++-
 6 files changed, 34 insertions(+), 1 deletion(-)

diff --git a/src/confdb/confdb.h b/src/confdb/confdb.h
index a9b1c4362b5c0c6b158830b1bf2ef68db09d8d06..153e68a0761463723945667004b4505acbc5a0b9 100644
--- a/src/confdb/confdb.h
+++ b/src/confdb/confdb.h
@@ -51,10 +51,11 @@
 
 /* Services */
 #define CONFDB_SERVICE_PATH_TMPL "config/%s"
 #define CONFDB_SERVICE_COMMAND "command"
 #define CONFDB_SERVICE_DEBUG_LEVEL "debug_level"
+#define CONFDB_SERVICE_DEBUG_LEVEL_ALIAS "debug"
 #define CONFDB_SERVICE_DEBUG_TIMESTAMPS "debug_timestamps"
 #define CONFDB_SERVICE_DEBUG_MICROSECONDS "debug_microseconds"
 #define CONFDB_SERVICE_DEBUG_TO_FILES "debug_to_files"
 #define CONFDB_SERVICE_TIMEOUT "timeout"
 #define CONFDB_SERVICE_FORCE_TIMEOUT "force_timeout"
diff --git a/src/config/SSSDConfig/__init__.py.in b/src/config/SSSDConfig/__init__.py.in
index 1a0893cbc180394d994b9d97fc0fa863da656549..1c490cf714e06e75b1ce8d5dee1aec27dfc2d12b 100644
--- a/src/config/SSSDConfig/__init__.py.in
+++ b/src/config/SSSDConfig/__init__.py.in
@@ -38,10 +38,11 @@ else:
     _ = translation.ugettext
 
 # TODO: This needs to be made external
 option_strings = {
     # [service]
+    'debug' : _('Set the verbosity of the debug logging'),
     'debug_level' : _('Set the verbosity of the debug logging'),
     'debug_timestamps' : _('Include timestamps in debug logs'),
     'debug_microseconds' : _('Include microseconds in timestamps in debug logs'),
     'debug_to_files' : _('Write debug messages to logfiles'),
     'timeout' : _('Ping timeout before restarting service'),
diff --git a/src/config/SSSDConfigTest.py b/src/config/SSSDConfigTest.py
index e518c756599be42dddf3397a47451ac6afa05d29..6ec30234e24b7b48ccab6a98e1f9396990509190 100755
--- a/src/config/SSSDConfigTest.py
+++ b/src/config/SSSDConfigTest.py
@@ -297,10 +297,11 @@ class SSSDConfigTestSSSDService(unittest.TestCase):
             're_expression',
             'full_name_format',
             'krb5_rcache_dir',
             'user',
             'default_domain_suffix',
+            'debug',
             'debug_level',
             'debug_timestamps',
             'debug_microseconds',
             'debug_to_files',
             'command',
@@ -495,10 +496,11 @@ class SSSDConfigTestSSSDDomain(unittest.TestCase):
 
         # First test default options
         options = domain.list_options()
         control_list = [
             'description',
+            'debug',
             'debug_level',
             'debug_timestamps',
             'min_id',
             'max_id',
             'timeout',
@@ -861,10 +863,11 @@ class SSSDConfigTestSSSDDomain(unittest.TestCase):
 
         # First test default options
         options = domain.list_options()
         control_list = [
             'description',
+            'debug',
             'debug_level',
             'debug_timestamps',
             'min_id',
             'max_id',
             'timeout',
diff --git a/src/config/etc/sssd.api.conf b/src/config/etc/sssd.api.conf
index a15f2bd05c3046f8d76b13b3d8f28f9001d8fded..e6756e6431c231f8f1dbe53227fc8ae3ea19b539 100644
--- a/src/config/etc/sssd.api.conf
+++ b/src/config/etc/sssd.api.conf
@@ -1,10 +1,11 @@
 # Format:
 # option = type, subtype, mandatory[, default]
 
 [service]
 # Options available to all services
+debug = int, None, false
 debug_level = int, None, false
 debug_timestamps = bool, None, false
 debug_microseconds = bool, None, false
 debug_to_files = bool, None, false
 command = str, None, false
@@ -103,10 +104,11 @@ hostid_provider = str, None, false
 subdomains_provider = str, None, false
 
 [domain]
 # Options available to all domains
 description = str, None, false
+debug = int, None, false
 debug_level = int, None, false
 debug_timestamps = bool, None, false
 command = str, None, false
 min_id = int, None, false
 max_id = int, None, false
diff --git a/src/man/sssd.conf.5.xml b/src/man/sssd.conf.5.xml
index 09db9cd32673c911991b335e986692e3d8d856d0..6935685da64f202131f2055a25dc9402f199b750 100644
--- a/src/man/sssd.conf.5.xml
+++ b/src/man/sssd.conf.5.xml
@@ -68,10 +68,23 @@
                 <varlistentry>
                     <term>debug_level (integer)</term>
                     <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"; href="include/debug_levels.xml" />
                 </varlistentry>
                 <varlistentry>
+                    <term>debug (integer)</term>
+                    <listitem>
+                        <para>
+                            SSSD 1.14 and later also includes the
+                            <replaceable>debug</replaceable> alias for
+                            <replaceable>debug_level</replaceable> as a
+                            convenience feature. If both are specified, the
+                            value of <replaceable>debug_level</replaceable>
+                            will be used.
+                        </para>
+                    </listitem>
+                </varlistentry>
+                <varlistentry>
                     <term>debug_timestamps (bool)</term>
                     <listitem>
                         <para>
                             Add a timestamp to the debug messages.
                             If journald is enabled for SSSD debug logging this
diff --git a/src/util/server.c b/src/util/server.c
index 67a25955783c30dc03f3d6d9193c8547c625f134..074dc34848ae2b8dd98bf6b218cc6c9c8441104d 100644
--- a/src/util/server.c
+++ b/src/util/server.c
@@ -565,18 +565,31 @@ int server_setup(const char *name, int flags,
 
     if (debug_level == SSSDBG_UNRESOLVED) {
         /* set debug level if any in conf_entry */
         ret = confdb_get_int(ctx->confdb_ctx, conf_entry,
                              CONFDB_SERVICE_DEBUG_LEVEL,
-                             SSSDBG_DEFAULT,
+                             SSSDBG_UNRESOLVED,
                              &debug_level);
         if (ret != EOK) {
             DEBUG(SSSDBG_FATAL_FAILURE, "Error reading from confdb (%d) "
                                          "[%s]\n", ret, strerror(ret));
             return ret;
         }
 
+        if (debug_level == SSSDBG_UNRESOLVED) {
+            /* Check for the `debug` alias */
+            ret = confdb_get_int(ctx->confdb_ctx, conf_entry,
+                    CONFDB_SERVICE_DEBUG_LEVEL_ALIAS,
+                    SSSDBG_DEFAULT,
+                    &debug_level);
+            if (ret != EOK) {
+                DEBUG(SSSDBG_FATAL_FAILURE, "Error reading from confdb (%d) "
+                                            "[%s]\n", ret, strerror(ret));
+                return ret;
+            }
+        }
+
         debug_level = debug_convert_old_level(debug_level);
     }
 
     /* same for debug timestamps */
     if (debug_timestamps == SSSDBG_TIMESTAMP_UNRESOLVED) {
-- 
2.7.4

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