Adding helper methods for package management.

src/ExoRepo/Brew.class.st

@@ -4,6 +4,14 @@ Class {
 	#category : #ExoRepo
 }
 
+{ #category : #accessing }
+Brew class >> help [
+	^ (GtSubprocessWithInMemoryOutput new
+		shellCommand: 'brew help';
+		runAndWait; 
+		stdout)
+]
+
 { #category : #accessing }
 Brew class >> install [
 	"This is a preliminary starting installation script that is not working. 
@@ -24,3 +32,17 @@ Smalltalk os isWindows ifTrue: [ ^ nil ].
 		runAndWait;
 		stdout)
 ]
+
+{ #category : #accessing }
+Brew class >> isInstalled [
+	^ self help isEmptyOrNil not.
+]
+
+{ #category : #accessing }
+Brew >> install: packageName [
+	^ GtSubprocessWithInMemoryOutput new
+		shellCommand: 'brew install ', packageName;
+		runAndWait;
+		stdout
+		
+]

src/ExoRepo/Nimble.class.st

@@ -59,6 +59,11 @@ Nimble class >> installed [
 		stdout) lines
 ]
 
+{ #category : #accessing }
+Nimble class >> isInstalled [
+	^ self version isEmptyOrNil not
+]
+
 { #category : #accessing }
 Nimble class >> version [