Restore extensions in core (#114921)

* bring back grammar extensions

* fix hygiene

* Revert "pull themes from the marketplace"

This reverts commit 0738f76dac.

extensions/ruby/.vscodeignore

@@ -0,0 +1,2 @@
+test/**
+cgmanifest.json

extensions/ruby/cgmanifest.json

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+{
+	"registrations": [
+		{
+			"component": {
+				"type": "git",
+				"git": {
+					"name": "textmate/ruby.tmbundle",
+					"repositoryUrl": "https://github.com/textmate/ruby.tmbundle",
+					"commitHash": "8d525dd4a0b77ae041593ff26dc883a694c648c5"
+				}
+			},
+			"licenseDetail": [
+				"Copyright (c) textmate-ruby.tmbundle project authors",
+				"",
+				"If not otherwise specified (see below), files in this folder fall under the following license: ",
+				"",
+				"Permission to copy, use, modify, sell and distribute this",
+				"software is granted. This software is provided \"as is\" without",
+				"express or implied warranty, and with no claim as to its",
+				"suitability for any purpose.",
+				"",
+				"An exception is made for files in readable text which contain their own license information, ",
+				"or files where an accompanying file exists (in the same directory) with a \"-license\" suffix added ",
+				"to the base-name name of the original file, and an extension of txt, html, or similar. For example ",
+				"\"tidy\" is accompanied by \"tidy-license.txt\"."
+			],
+			"license": "TextMate Bundle License",
+			"version": "0.0.0"
+		}
+	],
+	"version": 1
+}

extensions/ruby/language-configuration.json

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+{
+	"comments": {
+		"lineComment": "#",
+		"blockComment": [ "=begin", "=end" ]
+	},
+	"brackets": [
+		["{", "}"],
+		["[", "]"],
+		["(", ")"]
+	],
+	"autoClosingPairs": [
+		["{", "}"],
+		["[", "]"],
+		["(", ")"],
+		{ "open": "\"", "close": "\"", "notIn": ["string"] },
+		{ "open": "'", "close": "'", "notIn": ["string"] },
+		{ "open": "`", "close": "`", "notIn": ["string"] }
+	],
+	"surroundingPairs": [
+		["{", "}"],
+		["[", "]"],
+		["(", ")"],
+		["\"", "\""],
+		["'", "'"],
+		["`", "`"]
+	],
+	"indentationRules": {
+		"increaseIndentPattern": "^\\s*((begin|class|(private|protected)\\s+def|def|else|elsif|ensure|for|if|module|rescue|unless|until|when|while|case)|([^#]*\\sdo\\b)|([^#]*=\\s*(case|if|unless)))\\b([^#\\{;]|(\"|'|\/).*\\4)*(#.*)?$",
+		"decreaseIndentPattern": "^\\s*([}\\]]([,)]?\\s*(#|$)|\\.[a-zA-Z_]\\w*\\b)|(end|rescue|ensure|else|elsif|when)\\b)"
+	}
+}

extensions/ruby/package.json

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+{
+	"name": "ruby",
+	"displayName": "%displayName%",
+	"description": "%description%",
+	"version": "1.0.0",
+	"publisher": "vscode",
+	"license": "MIT",
+	"engines": { "vscode": "*" },
+	"scripts": {
+		"update-grammar": "node ../../build/npm/update-grammar.js textmate/ruby.tmbundle Syntaxes/Ruby.plist ./syntaxes/ruby.tmLanguage.json"
+	  },
+	"contributes": {
+		"languages": [{
+			"id": "ruby",
+			"extensions": [ ".rb", ".rbx", ".rjs", ".gemspec", ".rake", ".ru", ".erb", ".podspec", ".rbi" ],
+			"filenames": [ "rakefile", "gemfile", "guardfile", "podfile", "capfile", "cheffile", "hobofile", "vagrantfile", "appraisals", "rantfile", "berksfile", "berksfile.lock", "thorfile", "puppetfile", "dangerfile", "brewfile", "fastfile", "appfile", "deliverfile", "matchfile", "scanfile", "snapfile", "gymfile" ],
+			"aliases": [ "Ruby", "rb" ],
+			"firstLine": "^#!\\s*/.*\\bruby\\b",
+			"configuration": "./language-configuration.json"
+		}],
+		"grammars": [{
+			"language": "ruby",
+			"scopeName": "source.ruby",
+			"path": "./syntaxes/ruby.tmLanguage.json"
+		}]
+	}
+}

extensions/ruby/package.nls.json

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+{
+	"displayName": "Ruby Language Basics",
+	"description": "Provides syntax highlighting and bracket matching in Ruby files."
+}