Add Find-Package (#6)

src/AnyPackage.Pkgx.psm1

@@ -6,7 +6,22 @@ using module AnyPackage
 using namespace AnyPackage.Provider
 
 [PackageProvider('pkgx')]
-class PkgxProvider : PackageProvider, IInstallPackage, IUninstallPackage {
+class PkgxProvider : PackageProvider, IFindPackage, IInstallPackage, IUninstallPackage {
+    [void] FindPackage([PackageRequest] $request) {
+        if ($request.Name -eq '*') {
+            $request.WriteVerbose('pkgx does not support wildcards.')
+            return
+        }
+
+        pkgx mash pkgx/pantry-inventory $request.Name |
+            ForEach-Object {
+                if ($request.IsMatch([PackageVersion]$_)) {
+                    $package = [PackageInfo]::new($request.Name, $_, $request.ProviderInfo)
+                    $request.WritePackage($package)
+                }
+            }
+    }
+
     [void] InstallPackage([PackageRequest] $request) {
         if ($request.Version -and $request.Version.MinVersion -ne $request.Version.MaxVersion) {
             throw 'pkgx does not support version ranges, use only exact versions.'

tests/Find-Package.Tests.ps1

@@ -0,0 +1,10 @@
+#Requires -Modules AnyPackage.Pkgx
+
+Describe Find-Package {
+    Context 'with -Name parameter' {
+        It 'should find' {
+            { Find-Package -Name bun } |
+            Should -Not -BeNullOrEmpty
+        }
+    }
+}

tests/Install-Package.Tests.ps1

@@ -11,4 +11,4 @@ Describe Install-Package {
             Should -Not -Throw
         }
     }
-}
+}