Add vivaldi browser modifications

.vivaldi-mods/install-mods.lua

@@ -0,0 +1,45 @@
+#!/usr/bin/env hilbish
+
+-- Note: this script only supports 1 Vivaldi install.
+
+local posix = require("posix")
+local fs = require("fs")
+
+local _, mod_dir = posix.pwd()
+mod_dir = mod_dir:gsub("\n", "") .. "/js"
+local custom_js = mod_dir .. "/custom.js"
+
+local _, vivaldi_install = posix.find("/opt", { name = "vivaldi-bin" })
+local _, dir = posix.dirname(vivaldi_install)
+dir = dir:gsub("\n", "")
+local resources_dir = dir .. "/resources/vivaldi"
+
+print("Patch originating from " .. mod_dir .. " targeting " .. dir)
+
+local backup_files = fs.glob(resources_dir .. "/window.html.bak")
+
+if #backup_files == 0 then
+    print("Not patched; backing up window.html to window.html.bak...")
+    posix.cp(resources_dir .. "/window.html", resources_dir .. "/window.html.bak", { sudo = true })
+
+    print("Patching window.html...")
+    posix.sed('s/<\\/body>/<script src="custom.js"><\\/script> <\\/body>/', resources_dir .. "/window.html",
+        { flags = "-i", sudo = true })
+else
+    print("window.html has already been patched")
+end
+
+print("Combining js files into custom.js...")
+local _, js_files = posix.find(mod_dir, { maxdepth = 1, type = "f", name = "*.js" })
+posix.touch(custom_js)
+for line in string.gmatch(js_files, "[^\r\n]*") do
+    if line == '' then
+        break
+    end
+    posix.cat(line, { append_file = custom_js })
+end
+
+print("Copying custom.js...")
+posix.cp(custom_js, resources_dir .. "/custom.js", { sudo = true, force = true })
+
+posix.rm(custom_js)