From f0912a3bbbb6345cea0296f215d510285b55d8dd Mon Sep 17 00:00:00 2001
From: Gautier Pelloux-Prayer
 <gautier.pelloux-prayer@belledonne-communications.com>
Date: Thu, 2 Jul 2015 17:33:08 +0200
Subject: [PATCH] prepare.py: add check_tools function

---
 prepare.py | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++--
 1 file changed, 70 insertions(+), 2 deletions(-)

diff --git a/prepare.py b/prepare.py
index c4469b0f1..23a448966 100755
--- a/prepare.py
+++ b/prepare.py
@@ -27,10 +27,11 @@ import os
 import re
 import shutil
 import sys
-from subprocess import Popen
+from subprocess import Popen, PIPE
 sys.dont_write_bytecode = True
 sys.path.insert(0, 'submodules/cmake-builder')
 import prepare
+from distutils.spawn import find_executable
 
 
 class IOSTarget(prepare.Target):
@@ -148,6 +149,69 @@ def extract_libs_list():
     return list(set(l))
 
 
+def check_installed(binary, prog=None, warn=True):
+    if not find_executable(binary):
+        if warn:
+            print("Could not find {}. Please install {}".format(binary, prog))
+        return 1
+    return 0
+
+
+def check_tools():
+    ret = 0
+
+    if " " in os.path.dirname(os.path.realpath(__file__)):
+        print("Invalid location: your location should not contain spaces")
+        ret = 1
+
+    for prog in ["autoconf", "automake", "pkg-config", "doxygen", "java", "nasm", "gettext", "wget", "yasm", "optipng"]:
+        ret |= check_installed(prog, "it")
+    ret |= check_installed("ginstall", "coreutils")
+    ret |= check_installed("intltoolize", "intltool")
+    ret |= check_installed("convert", "imagemagick")
+
+    if not check_installed("libtoolize", warn=False):
+        if check_installed("glibtoolize", "libtool"):
+            glibtoolize_path = find_executable(glibtoolize)
+            ret = 1
+            error = "Please do a symbolic link from glibtoolize to libtoolize: 'ln -s {} ${}'"
+            print(error.format(glibtoolize_path, glibtoolize_path.replace("glibtoolize", "libtoolize")))
+
+    # just ensure that JDK is installed - if not, it will automatiaclyl display a popup to user
+    if not Popen("java -version".split(" "), stderr=PIPE, stdout=PIPE):
+        print("Please install Java JDK (not just JRE)")
+        ret = 1
+
+    # needed by x264
+    check_installed("gas-preprocessor.pl", "it following the README.md")
+
+    devnull = open(os.devnull, 'wb')
+    nasm_output = Popen("nasm -f elf32".split(" "), stderr=PIPE, stdout=PIPE).stderr.read()
+    if "fatal: unrecognised output format" in nasm_output:
+        print(
+            "Invalid version of nasm: your version does not support elf32 output format. If you have installed nasm, please check that your PATH env variable is set correctly.")
+        ret = 1
+
+        if not os.path.isdir("submodules/linphone/mediastreamer2") or not os.path.isdir("submodules/linphone/oRTP"):
+            print("Missing some git submodules. Did you run 'git submodule update --init --recursive'?")
+            ret = 1
+    if not Popen("xcrun --sdk iphoneos --show-sdk-path".split(" "), stdout=devnull, stderr=devnull):
+        print("iOS SDK not found, please install Xcode from AppStore or equivalent")
+        ret = 1
+    else:
+        sdk_platform_path = Popen("xcrun --sdk iphonesimulator --show-sdk-platform-path".split(" "), stdout=PIPE, stderr=devnull).stdout.read()[:-1]
+        sdk_strings_path = "{}/{}".format(sdk_platform_path, "Developer/usr/bin/strings")
+        if not os.path.isfile(sdk_strings_path):
+            strings_path = find_executable("strings")
+            print("strings binary missing, please run 'sudo ln -s {} {}'".format(strings_path, sdk_strings_path))
+            ret = 1
+
+    if ret == 1:
+        print("Failed to detect required tools, aborting.")
+
+    return ret
+
+
 def install_git_hook():
     git_hook_path = ".git{sep}hooks{sep}pre-commit".format(sep=os.sep)
     if os.path.isdir(".git{sep}hooks".format(sep=os.sep)) and not os.path.isfile(git_hook_path):
@@ -398,6 +462,9 @@ def main(argv=None):
     if args.debug_verbose:
         additional_args += ["-DENABLE_DEBUG_LOGS=YES"]
 
+    if check_tools() != 0:
+        return 1
+
     install_git_hook()
 
     selected_platforms = []
@@ -426,7 +493,8 @@ def main(argv=None):
             retcode = prepare.run(target, args.debug, False, args.list_cmake_variables, args.force, additional_args)
             if retcode != 0:
                 if retcode == 51:
-                    retcode = Popen(["make", "help-prepare-options"])
+                    Popen("make help-prepare-options".split(" "))
+                    retcode = 0
                 return retcode
 
     if args.clean: