Nuget bug I ran into with solution level packages and dependencies

nugetIf your using nuget and have a solution level nuget package you wish to add to a project, install-package will install your package as suggested, however update-package wont work as it wont find the nuget package your trying to update, this is only the case if the solution level package contains any dependencies, remove your dependencies and update-package does work.

This appears to be a bug, the obvious way to get around it is to use uninstall-package then install-package but its a bug none the less, I spent some time trying to get around this.

I was hoping this would have been fixed in nuget version 2.8 but it hasn’t been as yet.

Issue I ran into when using Nuget/SlowCheetah

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nugetCannot add part to the package. Part names cannot be derived from another part name by appending segments to it

Last week I ran into an issue where I was using nuget to package a .csproj file.
What I was after was the contents of the nuget package to contain a Content folder and inside this Content folder have one file called app.config.transform, that’s it.

If my .csproj file contained the following:-

<PropertyGroup Label="SlowCheetah">
    <SlowCheetahTargets>..\.shared\SlowCheetah.Transforms.targets</SlowCheetahTargets>
  </PropertyGroup>
  <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
  <Import Project="$(SlowCheetahTargets)" Condition="Exists('$(SlowCheetahTargets)')" Label="SlowCheetah" />

Then the package contents had a single file called content – which is incorrect.

The way I fixed this was inside the .csproj file I changed the type of the app.config.transform from Content to None. I then changed my .nuspec file to have the following:-

<files>
    <file src="App.config.transform" target="Content" />
</files>

This fixed my issue with the contents of my nuget package, just incase anyone runs into the same issue.

Nuget Packages – solution level versus project level

nugetI’ve recently been working on a number of projects/solutions which contain nuget packages, one of the requirements I had been given was to add a nuget package which I had created at a solution level instead of it being at project level.

This means just that, the package is for the project solution and not for a particular project within the solution. If you’re still not sure what I mean let me explain with an example to better illustrate.

If you create an empty console application and add the nuget package called xunit runners:-

xunit.runners2

This will add the package at the solution level rather than to the consoleapplication1 project as shown below:-

xunit.runners3

Contrast this will a package level nuget package such as NUnit which is a project level nuget package:-

xunit.runners4

If you need to create a solution level nuget package then here is what I have found so far:-

  • Don’t reference a version of the framework within your Nuspec file
  • Don’t reference any dll’s

If you do either then you’ll end up with a project level nuget package.

There is more information on this here.

Learning PowerShell – Using PowerShell Community Extensions

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ps The PowerShell Community Extensions are a set of additional cmdlets, providers, functions and scripts which the community asked for and have been written for us to use and take advantage of.

Once you download PSCX you’ll want to add this module to something called your PowerShell Module path, this is the place you’d normally put your PowerShell Modules so that you can import them for using in your scripts. To check what your PowerShell Module path is from within PowerShell type:-

$env:PSModulePath

Add PSCX to your $env:PSModulePath so you can import it and use it anytime you start using PowerShell, to add PSCX type the following:-

$env:PSModulePath = $env:PSModulePath + “;C:\Program Files (x86)\PowerShell Community Extensions\Pscx3\;”

the last part should be where you chose to install PSCX.

Ok so no we have this added to our PowerShell Module path lets see if we can start using it.

To check what PowerShell modules are already imported type:-

Get-Module

The screen shot below shows me which modules have been imported:-

get-module

To add PSCX you need to import the module, so lets do that by typing:-

Import-Module PSCX

And that’s it we can call any of the PSCX cmdlets from our scripts, the list of which are extensive and include:-

Write-Zip
Format-XML
Get-XML
UnBlock-File

and many more

Hopefully this is enough to whet your appetite.

Learn PowerShell – Piping

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Piping in PowerShell is awesomesauce and best explained by some examples, but firstly a quick explanation of piping, lets say we want to get a list of files from the c:\windows folder on your machine, order them by the last modified date and select the first 50 files and output the list to a text file in the current folder, simple requirements and here it is:-

Set-Location c:\windows
Get-ChildItem | Sort-Object LastWriteTime -Descending | Select-Object -First 50| Out-File files.txt

  • Set-Location is the cmdlet which is roughly the equivalent to the cd command found in a command prompt.
  • Get-ChiLdItem is the cmdlet which is roughly the equivalent to the dir command found in a command prompt, but you can use it with objects, lists and so on.
  • Sort-Object is the cmdlet to sort obviously and can be used against your objects, lists and much more.
  • Select-Object tis the cmdlet to select a number of objects (files, records, results), you can use this with -first, -last, -skip and much more
  • Out-File will is the cmdlet to simply write output to a file.

Obviously a very simple example but you take A pass the results to B, B then does work on it, passes it to C and you got the idea. This is a how piping works and can yield the data your looking for quickly and in very little code indeed.

PowerShell Blog Posts

Learn Powershell – ExecutionPolicy

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psCheck what the script execution policy is currently set to on your system:-

Get-ExecutionPolicy

The options are AllSigned, ByPass, Default, Remote Signed, Restricted or undefined

You can read about each of these by typing in the following command:-

Get-Help Set-ExecutionPolicy -online

This will load the online help for this command, if your ever needing help with PowerShell then you can search for help like so, Get-Help *services*, this will show you what commandLet’s are available for working with Services, i.e. starting them stopping them and so on.

I set the execution policy to RemoteSigned so that I can run my own PowerShell scripts but ones I download from the internet wont run unless I change the setting, so that my system is secure from any unwanted side effects from other peoples scripts.

PowerShell Blog Posts

PowerShell useful Tools

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As part of my blog post series on learning PowerShell I thought it might be a good time to list the tools I have came across and give them a shout out as I reckon the list of tools have been very helpful in learning some good practices when writing PowerShell scripts.

Lets get to the list:-

  • PowerShell ISE Steroids – this is a great add-on for PowerShell ISE, its not free but you get 10 days to check it out and I recommend you do.
  • PowerShell Script Browser Script Browser for Windows PowerShell ISE enables you to search for script samples in the TechNet Script Center, invaluable tool in my opinion for looking at example scripts
  • Power GUI PowerShell Editor with a few nice extras

I will add more as I come across them ;)

Learn PowerShell – Getting Started

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To Start PowerShell, click Start, and type in PowerShell, choose Windows PowerShell ISE and run this as an Administrator (right click).

Tip:-  To check which version of PowerShell you have type $PSVersionTable, this will show a table of results and your looking for the top one which is the PSVersion, if this is 2.0 then you really should update before we go any further. At work I have been using PowerShell 3.0 and now 4.0 is out.

To update to version 3.0 the download link is PowerShell 3
To update to version 4.0 the download link is PowerShell 4

Tip:- PowerShell has in-built help which is really great, make sure its up to date by typing in Update-Help

PowerShell Blog Posts

Adventures into Powershell

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psOver the last couple of months I have been working with PowerShell on a daily basis, I had initially looked at PowerShell at home a little bit and thought yeah its fairly cool and left it at that, if you haven’t looked at PowerShell and want to learn some quick tips for getting started then stick around.

At work I was tasked with doing a small project using PowerShell and I can now report that I think PowerShell is pretty awesome, I have even found myself thinking you could do that using PowerShell.

The learning curve for PowerShell is not that high and if you put a little bit of effort into learning the basics it starts to become pretty easy to do most things.

This will be the first post covering a number of topics within PowerShell and I will cover what I have been learning as we go.

NDC London – Day Three

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Day 3 – Knocking it out the park, with KnockoutJS by Miguel A. Castro (@miguelcastro67)
The first talk I attended on day 3 was Knocking it out the park, with KnockoutJS by Miguel A. Castro

Miguel’s talk walked you through KnockoutJS, what you would use it for and showed you several demos as he went building upon each one as he covered more and more on KnockoutJS. Miguel is a very good speaker, his talk was very well delivered and flowed excellently – his demos were useful and were very well explained.

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Day 3 – ASP.NET SignalR 2.0 and beyond by Damien Edwards and David Fowler(@DamianEdwards)
The second talk on day 3 I attended was ASP.NET SignalR 2.0 and beyond by Damien Edwards and David Fowler

Damien Edwards and David Fowler introduced everyone to a new major version of SignalR and what has been added/updated.
There is tighter integration with OWIN, .NET 4.5 server dependency, full support for self-hosting, new clients, massively improved cross-domain/CORS support, API usability improvements, easier hub unit testing and better error handling. We’ll cover all this and give a sneak peak and new features in upcoming releases in this information packed session. Very informative talk which I enjoyed.

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Day 3 – The future of C# by Mads Torgersen (blogs.msdn.com/b/madst/)
The third talk I attended on Day 3 was The future of C# by Mads Torgersen

Mads talked about how the past several years, the Microsoft C# team has been focused on rebuilding the compilers and editing experiences as part of Project Roslyn. He also introduced us to potential new language features are on the designers’ minds. Features discussed included read only auto properties, multiple return values, null checking, structural typing is ‘on the radar’.

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Day 3 – Object Oriented Design in the Wild by Jessica Kerr (@jessitron)
The fourth talk I attended on Day 3 was Object Oriented Design in the Wild by Jessica Kerr

Jessica talked about the reasoning behind object-oriented design principles, and how we find their application in the wider world. This session will challenge you to go beyond rules and standards and ask, when is clean code worth your time? Go beyond OO and come back with new insight. Interesting talk all about OO in different languages.

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Day 3 – ASP.NET SignalR 2.0 and beyond by Damien Edwards and David Fowler(@davidfowl)
The fifth talk on day 3 I attended was Using ASP.NET SignalR in Anger by Damien Edwards and David Fowler

Damien Edwards and David Fowler What showed off the best patterns for using SignalR in a real application – both guys walked through code samples of how to go about doing such a thing and discussed a number of topics including when best to use SignalR as opposed to other technologies.

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