Add installer.lua

installer.lua

@@ -0,0 +1,111 @@
+--[[
+_ _  _ ____ ___ ____ _    _    ____ ____
+| |\ | [__   |  |__| |    |    |___ |__/
+| | \| ___]  |  |  | |___ |___ |___ |  \
+
+Github Repository: https://github.com/CC-YouCube
+Homepage: https://youcube.madefor.cc/
+License: GPL-3.0
+]]
+-- OpenInstaller v1.0.0 (based on wget)
+
+local BASE_URL = "http://befator.befatorinc.de/cdn/youcube/"
+
+local files = {
+    ["./youcube.lua"] = BASE_URL .. "youcube.lua",
+    ["./lib/youcubeapi.lua"] = BASE_URL .. "lib/youcubeapi.lua",
+    ["./lib/numberformatter.lua"] = BASE_URL .. "lib/numberformatter.lua",
+    ["./lib/semver.lua"] = BASE_URL .. "lib/semver.lua",
+    ["./lib/argparse.lua"] = BASE_URL .. "lib/argparse.lua",
+    ["./lib/string_pack.lua"] = BASE_URL .. "lib/string_pack.lua",
+}
+
+if not http then
+    printError("OpenInstaller requires the http API")
+    printError("Set http.enabled to true in the ComputerCraft config")
+    return
+end
+
+local function tableContains(_table, element)
+    for _, value in pairs(_table) do
+        if value == element then
+            return true
+        end
+    end
+    return false
+end
+
+local function writeColoured(text, colour)
+    term.setTextColour(colour)
+    term.write(text)
+end
+
+local function question(message)
+    local previous_colour = term.getTextColour()
+
+    writeColoured(message .. "? [", colors.orange)
+    writeColoured("Y", colors.lime)
+    writeColoured("/", colors.orange)
+    writeColoured("n", colors.red)
+    writeColoured("] ", colors.orange)
+
+    -- Reset colour
+    term.setTextColour(previous_colour)
+
+    local input_char = read():sub(1, 1):lower()
+    local accept_chars = { "o", "k", "y", "j", "" }
+
+    if tableContains(accept_chars, input_char) then
+        return true
+    end
+
+    return false
+end
+
+local unknown_error = "Unknown error"
+
+local function http_get(url)
+    local valid_url, error_message = http.checkURL(url)
+    if not valid_url then
+        printError(('"%s" %s.'):format(url, error_message or "Invalid URL"))
+        return
+    end
+
+    local response, http_error_message = http.get(url, nil, true)
+    if not response then
+        printError(('Failed to download "%s" (%s).'):format(url, http_error_message or unknown_error))
+        return
+    end
+
+    local response_body = response.readAll()
+    response.close()
+
+    if not response_body then
+        printError(('Failed to download "%s" (Empty response).'):format(url))
+    end
+
+    return response_body
+end
+
+for path, download_url in pairs(files) do
+    local resolved_path = shell.resolve(path)
+    if fs.exists(resolved_path) then
+        if not question(('"%s" already exists. Override'):format(path)) then
+            return
+        end
+    end
+
+    local response_body = http_get(download_url)
+
+    local file, file_open_error_message = fs.open(resolved_path, "wb")
+    if not file then
+        printError(('Failed to save "%s" (%s).'):format(path, file_open_error_message or unknown_error))
+        return
+    end
+
+    file.write(response_body)
+    file.close()
+
+    term.setTextColour(colors.lime)
+    print(('Downloaded "%s"'):format(path))
+end