Merge pull request #249 from crystal-lang/rework-and-fix-natural-sort

Implements pre-releases

Author: ysbaddaden

CHANGELOG.md

@@ -2,7 +2,15 @@
 
 ## UNRELEASED
 
+Features:
+- Experimental support for prereleases. Add a letter to a version number to
+  declare a pre-release. For example `1.2.3.alpha` or `1.0.0-rc1`.
+
 Fixes:
+- Approximate operator used to match invalid version numbers (e.g. `~> 0.1.0`
+  wrongly matched `0.10.0`).
+- Unbalanced version numbers, such as `1.0.0` and `1.0.0.1` are now correctly
+  ordered and compared as `1.0.0.1 > 1.0.0`.
 - `install -t` isn't supported on macOS.
 
 ## v0.8.1 - 2018-06-17

SPEC.md

@@ -79,8 +79,9 @@ The version number of the library (String, required).
 
 - It must contain digits.
 - It may contain dots and dashes but not consecutive ones.
+- It may contain a letter to make it a 'prerelease'.
 
-Examples: `1.2.3`, `2.0.0-rc1` or `2016.09`.
+Examples: `1.2.3`, `2.0.0.1`, `1.0.0.alpha` `2.0.0-rc1` or `2016.09`.
 
 While Shards doesn't enforce it, following a rational versioning scheme like
 [Semantic Versioning](http://semver.org/) or [Calendar Versioning](http://calver.org/)

src/cli.cr

@@ -19,9 +19,6 @@ module Shards
       Options:
       HELP
     puts opts
-    #    info <package>
-    #    search <query>
-    #     update [package package ...]
     exit
   end
 
@@ -42,9 +39,6 @@ module Shards
           build(path, args[1..-1])
         when "check"
           Commands::Check.run(path)
-        #when "info"
-        #  display_help_and_exit(opts) unless args[1]?
-        #  Commands::Info.run(args[1])
         when "init"
           Commands::Init.run(path)
         when "install"
@@ -53,12 +47,8 @@ module Shards
           Commands::List.run(path, tree: args.includes?("--tree"))
         when "prune"
           Commands::Prune.run(path)
-          # when "search"
-          #  display_help_and_exit(opts) unless args[1]?
-          #  Commands::Search.run(path, args[1])
         when "update"
           Commands::Update.run(path)
-          # Commands.update(path, *args[1..-1])
         when "version"
           Commands::Version.run(args[1]? || path)
         else

src/commands/check.cr

@@ -1,11 +1,9 @@
-require "../helpers/versions"
 require "./command"
+require "../versions"
 
 module Shards
   module Commands
     class Check < Command
-      include Helpers::Versions
-
       def run(*args)
         if has_dependencies?
           locks # ensures that lockfile exists
@@ -45,7 +43,7 @@ module Shards
         end
 
         if version = lock["version"]?
-          if resolve_requirement([version], dependency.version).empty?
+          if Versions.resolve([version], dependency.version).empty?
             Shards.logger.debug { "#{dependency.name}: lock conflict" }
             return false
           else
@@ -61,7 +59,7 @@ module Shards
         #  end
         #end
 
-        if resolve_requirement([spec.version], dependency.version).empty?
+        if Versions.resolve([spec.version], dependency.version).empty?
           Shards.logger.debug { "#{dependency.name}: version mismatch" }
           return false
         end

src/commands/list.cr

@@ -1,4 +1,3 @@
-require "../helpers/versions"
 require "./command"
 
 module Shards

src/commands/version.cr

@@ -1,4 +1,3 @@
-require "../helpers/versions"
 require "./command"
 
 module Shards

src/config.cr

@@ -5,6 +5,9 @@ module Shards
   DEFAULT_COMMAND = "install"
   DEFAULT_VERSION = "0"
 
+  VERSION_REFERENCE = /^v?\d+[-.][-.a-zA-Z\d]+$/
+  VERSION_TAG = /^v(\d+[-.][-.a-zA-Z\d]+)$/
+
   def self.cache_path
     @@cache_path ||= find_or_create_cache_path
   end

src/helpers/natural_sort.cr

@@ -1,11 +1,9 @@
 require "file_utils"
 require "./resolvers/*"
-require "./helpers/versions"
+require "./versions"
 
 module Shards
   class Package
-    include Helpers::Versions
-
     getter requirements : Array(String)
     @resolver : Resolver?
     @available_versions : Array(String)?
@@ -43,7 +41,7 @@ module Shards
     end
 
     def matching_versions
-      resolve_versions(available_versions, requirements)
+      Versions.resolve(available_versions, requirements)
     end
 
     def spec