feat: add api for configuring commit-hooks based on file

Author: lehvolk

README.md

@@ -87,7 +87,7 @@ either requiring their success or not, through `tasks`
 gitHooks {
     path = "some/folder" // custom git repository location, defaults to the local project and scans the parents 
     preCommit {
-        // Script downloaded from a source, can be a String or URL
+        // Script from a source, can be a String, URL or File 
         from("https://my.repo/pre-commit.sh")
         // Content can be added at the bottom of the script
         appendScript {

src/main/kotlin/org/danilopianini/gradle/git/hooks/ScriptContext.kt

@@ -2,6 +2,7 @@ package org.danilopianini.gradle.git.hooks
 
 import org.gradle.api.Task
 import org.gradle.api.tasks.TaskProvider
+import java.io.File
 import java.net.URL
 
 /**
@@ -24,6 +25,11 @@ interface ScriptContext {
      */
     fun appendScript(script: () -> String)
 
+    /**
+     * Generates a script from the provided [file].
+     */
+    fun from(file: File) = from("") { file.readText() }
+
     /**
      * Generates a script from the provided [url].
      */