[MonoDevelop] Applying policies from the command line

[Michael Hutchinson]

Nice, sounds useful. It would be great to see this in a pull request
so we can include it in MD :)

The trick is to register an IApplication instead of trying to
initialize Mono.Addins directly, like this:
https://github.com/mono/monodevelop/blob/master/main/src/core/MonoDevelop.Core/MonoDevelop.Core.addin.xml#L207
https://github.com/mono/monodevelop/blob/master/main/src/core/MonoDevelop.Core/MonoDevelop.Projects/BuildTool.cs

However, maybe a better name for the application would be
"format-file" instead of "applypolicy?"?

On 24 February 2013 12:49, Mart Sõmermaa <mrts.pydev at gmail.com> wrote:
> After looking around a bit in code, the solution looks to be pleasantly
> simple
> (for the default policy):
>
> ---
>
> using Mono.Addins;
> using MonoDevelop.CSharp.Formatting;
> using MonoDevelop.Projects.Policies;
> using NUnit.Framework;
>
> namespace TestFormatter
> {
>   class MainClass
>   {
>     public static void Main (string[] args)
>     {
>       Mono.Addins.AddinManager.Initialize ();
>
>       var input = "class Test {}";
>
>       var formatter = new CSharpFormatter ();
>       // CSharpFormatter.MimeType is internal
>       var mimeTypeChain = new string[] { "text/x-csharp" };
>       var policies = PolicyService.DefaultPolicies;
>       var result = formatter.FormatText (policies, mimeTypeChain,
>                     input, 0, input.Length);
>
>       Assert.AreEqual (result, "class Test\n{\n}");
>
>     }
>   }
> }
>
> ---
>
> However, this results in
>
> ---
>
>  [ERROR] FATAL UNHANDLED EXCEPTION:
>  System.Reflection.TargetInvocationException: Exception has been
>  thrown by the target of an invocation. --->
>  System.TypeInitializationException: An exception was thrown by
>  the type initializer for
>  MonoDevelop.CSharp.Formatting.CSharpFormattingPolicy --->
>  System.InvalidOperationException: This PolicyContainer can't be
>  modified
>
> ---
>
> It's a bit hard to debug as the debugger does not catch the exception, so I
> didn't dig into it too deeply.
> Does anyone have any idea what's causing this from the first glance?
>
> But generally, wouldn't having `mdtool applypolicy -p Mono -r .` in the git
> pre-commit hook be
> really nice for cleaning up code automagically? I personally miss this a
> lot, MonoDevelop's
> policies are much more powerful than e.g. NArrange (although I've not used
> the latter).
>
> (See e.g. https://metacpan.org/module/Code::TidyAll::Git::Precommit ).
>
> As for general usefulness, there are a number of people who are looking for
> this:
>
>  *
> http://haacked.com/archive/2011/05/22/an-obsessive-compulsive-guide-to-source-code-formatting.aspx
>  *
> http://stackoverflow.com/questions/30101/is-there-an-automatic-code-formatter-for-c
>
> And the issue has been raised in mono-devel list already back in 2008:
>
>  * http://lists.ximian.com/pipermail/mono-devel-list/2008-August/028863.html
>
> So, besides being useful for the wider world, I guess this would also help
> in keeping both Mono and Monodevelop code clean.
>
> Best,
> MS
>
> On Tue, Jan 29, 2013 at 5:07 PM, Mart Sõmermaa <mrts.pydev at gmail.com> wrote:
>>
>> Hello!
>>
>> Have there been any discussions around running the MonoDevelop policy tool
>> from the command line?
>>
>> It is an excellent tool and a it would be nice to apply consistent code
>> formatting and
>> other policies  across a project automatically where not all people use
>> MonoDevelop
>> as the main developer UI.
>>
>> Perhaps something in the lines of
>>
>>   mdtool applypolicy file.cs # apply default policy to file.cs
>>
>>   mdtool applypolicy -r dir # recursively apply default policy to all
>> files in directory dir
>>
>>   mdtool applypolicy -f policyfile file.cs # apply policy from file
>> policyfile
>>
>>   mdtool applypolicy -p Mono file.cs # apply the stock or custom policy
>> labeled 'Mono'
>>
>> If not and someone cares to point me to the right direction (what modules
>> to look into,
>> any concerns that you foresee etc) I might look into this myself.
>>
>> Thanks for the good work!
>>
>> Best,
>> Mart Sõmermaa
>
>
>
> _______________________________________________
> Monodevelop-list mailing list
> Monodevelop-list at lists.ximian.com
> http://lists.ximian.com/mailman/listinfo/monodevelop-list
>



--
Michael Hutchinson
http://mjhutchinson.com