berrybrew, the perlbrew for Windows, updated to v1.18

[stevieb]

I finally got around to doing a decent update to berrybrew.

Notable enhancements:

• Perls listed with berrybrew available are now listed in numerical, descending version order (again... this was a regression)
• Added new all subcommand to berrybrew fetch. This allows you to fetch the list of *all* available Strawberry Perls (there's over 100!). Previously, we would only fetch and list the most recent minor version number within each major version. (The standard and existing berrybrew fetch without the new arg doesn't change its previous behaviour)

Important bug fixes:

• Fixed issue where when using berrybrew fetch and there were orphaned Perls, we weren't auto-registering them as "custom"
• Fixed issue when a user attempted to register a single custom Perl more than once, it was throwing an exception

As always, if you decide to try it and/or upgrade, please let me know of any issues, or simply open a ticket.

Official Changes log.

c:\repos\berrybrew>berrybrew

berrybrew <command> [subcommand] [option]


    available   List available Strawberry Perl versions and which are 
+installed
    clean *     Remove all temporary berrybrew files
    clone       Make a complete copy of a Perl installation
    config      Add berrybrew to your PATH
    exec *      Run a command for every installed Strawberry Perl
    fetch *     Update the list of Strawberry Perl instances available
    install     Download, extract and install a Strawberry Perl
    off         Disable berrybrew perls (use 'switch' to re-enable)
    register    Manually register a custom installation directory
    remove      Uninstall a Strawberry Perl
    switch      Switch to use a different Strawberry Perl
    unconfig    Remove berrybrew from PATH
    upgrade     Performs a safe upgrade. Requires Git installed
    use *       Use a specific Strawberry Perl version temporarily
    help        Display this help screen
    license     Show berrybrew license
    version     Displays the version


    * - view subcommand details with 'berrybrew <command> help'

Enjoy!

-stevieb

ps. Thanks again to pryrt for his previous work along side myself, and for reporting both bugs and feature requests!

Update: I even had to break rank and ask for help elsewhere, because berrybrew is written in C#. Needed quick help on how to sort order lets just say an array of hashes, where hashes are keys with values of objects. In Perl, meh, two lines of code. In C#, it's nowhere near as fun.

I put up an SO post for the basics, but even still, that was simple. I still had to muck around and figure out how to sort by value of a key of a List of Dictionaries, where the list is List<Dictionary<string, object>>.

I hacked at that and got it to do what is needed, but I'm certain it isn't ideal by any strech. C, Perl, Python, C++ I can do, but this .Net and C# stuff I need some guidance. Needless to say, if there are any C# people here, the berrybrew project could seriously use your help for some code review, at minimum :D.

[Jenda]

So I looked at the C# code and I have a few comments.

 .Select(x => x.Split(new char[] {'.'})) is better written as  .Select(x => x.Split('.')). No need to explicitly construct the array unless you have to pass the count or split options.

There's no point in splitting the version and then joining it back. Just keep it. Same way as if you used the Schwartzian transform in Perl. The code has to be somewhat more talkative, in part because the IEnumerable (aka list) transformations (.Select() aka map{}, .Where() aka grep{} and so forth) are kinda lazy and sometimes you have to make sure they are applied and the result remembered. And you have to choose the data structure used to remember them.

This is how I would write the code:

var sortedPerlVersions = perlVersions
    .Select(x => new { full = x, parts = x.Split('.').Select(n => Conv
+ert.ToInt32(n)).ToArray() })
    .OrderBy(x => x.parts[0]).ThenBy(x => x.parts[1]).ThenBy(x => x.pa
+rts[2])
    .Select(x => x.full)
    .ToList();

You do not have to specify all those types. List<int> nameLengths = new List<int>(); is equivalent to var nameLengths = new List<int>(); and it's shorter and easier to modify.

Same with things like foreach (string perlName in Perls.Keys)