From 1ec7c3e6f8d6652f735da4ae91f649fa0306b488 Mon Sep 17 00:00:00 2001
From: David Walter Seikel
Date: Sat, 6 Feb 2016 19:30:35 +1000
Subject: Add a generic unpacking tool.

---
 tools/unpacker.lua | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100755 tools/unpacker.lua

(limited to 'tools/unpacker.lua')

diff --git a/tools/unpacker.lua b/tools/unpacker.lua
new file mode 100755
index 0000000..60da25d
--- /dev/null
+++ b/tools/unpacker.lua
@@ -0,0 +1,93 @@
+#!/usr/bin/env luajit
+
+local args = ...
+local tmpFile = os.tmpname()
+
+readCommand = function (command)
+  os.execute(command .. ' >' .. tmpFile)
+  local tf = io.open(tmpFile, 'r')
+  local result = tf:read()
+  tf:close()
+  return result
+end
+
+function scanDir(directory)
+  local i, t, popen = 0, {}, io.popen
+--  for filename in popen('dir "'..directory..'" /b'):lines() do
+  for filename in popen('ls -AF "'..directory..'"'):lines() do
+    i = i + 1
+    t[i] = filename
+  end
+  return t
+end
+
+
+--workingDir = readCommand('pwd')
+--baseDir = workingDir
+--baseDir = string.gsub(baseDir, '(.*)/.-$', '%1')
+
+--bin_d    = baseDir .. ''
+--lib_d    = baseDir .. '/lib'
+--data_d   = baseDir .. '/media'
+--locale_d = baseDir .. '/locale'
+home_d   = readCommand('echo "$HOME"')
+
+
+unpackers =
+{
+  iar		= function (src, dst)  return('tar -xzf ' .. src .. ' -C ' .. dst)  end,
+  oar		= function (src, dst)  return('tar -xzf ' .. src .. ' -C ' .. dst)  end,
+  rar		= function (src, dst)  return('unrar x '  .. src .. ' '    .. dst)  end,
+  tar_bz2	= function (src, dst)  return('tar -xzf ' .. src .. ' -C ' .. dst)  end,
+  tar_gz	= function (src, dst)  return('tar -xzf ' .. src .. ' -C ' .. dst)  end,
+  tgz		= function (src, dst)  return('tar -xzf ' .. src .. ' -C ' .. dst)  end,
+  zip		= function (src, dst)  return('unzip '    .. src .. ' -d ' .. dst)  end,
+}
+
+print('Searching for archives in ' .. home_d .. '/.SledjHamr', ' -> ', ' unpack into ' .. home_d .. '/.SledjHamr/.cache/unpacked/')
+
+for k, v in pairs(scanDir(home_d .. '/.SledjHamr')) do
+
+  -- First find if there's one of the special flags at the end, and strip it off.
+  t = string.sub(v, -1, -1)
+  v = string.sub(v, 1, -2)
+  f = true
+      if '@' == t then t = t
+  elseif '*' == t then t = t
+  elseif '/' == t then f = false
+  elseif '=' == t then t = t
+  elseif '>' == t then t = t
+  elseif '|' == t then t = t
+  else   v = v .. t;   t = ' ';
+  end
+
+  -- Figure out what sort of file it is.
+  name, ext = string.match(v, "(.*)%.(.*)$")
+  if f and nil ~= ext then
+    name1, tar = string.match(name, "(.*)%.(.*)$")
+    if 'tar' == tar then
+      name = name1
+      ext  = tar .. '_' .. ext
+    end
+
+    ext = string.lower(ext)
+    u = unpackers[ext]
+    if nil ~= u then
+      src = home_d .. '/.SledjHamr/' .. v
+      dst = home_d .. '/.SledjHamr/.cache/unpacked/' .. name
+
+      os.execute('rm -fr ' .. dst)
+      os.execute('mkdir -p ' .. dst)
+      print('un' .. string.upper(ext) .. 'ing ', '"' .. v .. '"', ' -> ', '"' .. name .. '"')
+          if '@' == t then print('  ' .. v, ' is a  soft link.')
+      elseif '*' == t then print('  ' .. v, ' is an executable.')
+      elseif '/' == t then print('  ' .. v, ' is a  directory.');
+      elseif '=' == t then print('  ' .. v, ' is a  socket.')
+      elseif '>' == t then print('  ' .. v, ' is a  door.')
+      elseif '|' == t then print('  ' .. v, ' is a  FIFO.')
+--      else                 print('  ' .. v, ' is an ordinary file.')
+      end
+      os.execute(u(src, dst) .. ' >/dev/null')
+    end
+  end
+end
-- 
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