[v2,3/4] buildtools: add script to setup abi checks for meson

diff --git a/buildtools/abi-setup.py b/buildtools/abi-setup.py
new file mode 100755
index 000000000..c156b3c73
--- /dev/null
+++ b/buildtools/abi-setup.py
@@ -0,0 +1,104 @@ 
+#!/usr/bin/env python3
+# SPDX-License-Identifier: BSD-3-Clause
+# Copyright(c) 2020 Intel Corporation
+
+import sys
+import os
+import argparse
+
+# Get command line arguments
+parser = argparse.ArgumentParser(usage='\rThis script is intended to setup ABI dumps for meson to perform ABI checks\n'+
+                                       'Supported environmental variables\n'+
+                                       '\t- DPDK_ABI_DUMPS_PATH: Can be used to specify a custom directory for the systems dump directories.\n'+
+                                       '\t- CC: The required compiler will be determined using this environmental variable.\n'+
+                                       '\t- DPDK_ABI_TAR_URI: Can be used to specify a location that the script can pull prebuilt or cached dump archives from. This can be a remote http location or a local directory.\n')
+parser.add_argument('-t', '--tag', dest='tag', type=str, help='DPDK tag e.g. latest or v20.11')
+parser.add_argument('-d', '--dpdk', dest='dpdk', type=str, help='Path to DPDK source directory')
+args = parser.parse_args()
+
+# Get the DPDK tag if not supplied set as latest
+if args.tag:
+    user_tag = args.tag
+else:
+    user_tag = 'latest'
+
+tag = ''
+# If the user did not supply tag or wants latest then get latest tag
+if user_tag == 'latest':
+    # Get latest quarterly build tag from git repo
+    tag = os.popen('git ls-remote --tags http://dpdk.org/git/dpdk | grep -v "rc\|{}" | tail -n 1 | sed "s/.*\///"').read().strip()
+else:
+    tag = user_tag
+    # If the user supplied tag does not exist then fail
+    tag_check = int(os.popen('git ls-remote http://dpdk.org/git/dpdk refs/tags/'+tag+' | wc -l').read().strip())
+    if tag_check != 1:
+        print('ERROR supplied tag does not exist in DPDK repo')
+        exit()
+
+# Get the specified compiler from system
+comp_env = 'CC'
+if comp_env in os.environ:
+    comp = os.environ[comp_env]
+else:
+    comp = 'gcc'
+
+# Get the systems architecture
+arch = os.popen('uname -m').read().strip()
+
+# Get devtools path
+devtools_path = ''
+if args.dpdk:
+    devtools_path = os.path.abspath(os.path.join(args.dpdk,'devtools'))
+else:
+    print('ERROR DPDK source directory must be specified')
+    exit()
+
+# Get the abi dumps folder from args or env fail if none supplied
+abi_folder = ''
+abi_env = 'DPDK_ABI_DUMPS_PATH'
+if abi_env in os.environ:
+    abi_folder = os.path.abspath(os.environ[abi_env])
+else:
+    abi_folder = os.path.abspath(os.path.join(args.dpdk,'abi_dumps'))
+
+# If the directory doesn't exist create it and add a README to explain what it does
+if not os.path.exists(abi_folder):
+    os.makedirs(abi_folder)
+    f=open(abi_folder+'/README','w+')
+    f.write('This directory has been setup to contain the ABI dump folders needed to perform ABI checks\n')
+    f.write('Directories here must be in the format {DPDK Tag}-{Compiler ID}-{Architecture}-abi_dump\n')
+    f.write('e.g. v20.11-gcc-x86_64-abi_dump\n')
+    f.write('Directories that do not use this format will not be picked up by the meson ABI checks\n')
+    f.write('This directory is managed automatically unless desired by the user\n')
+    f.close()
+
+# Move to abi folder
+os.chdir(abi_folder)
+abi_dump=tag+'-'+comp+'-'+arch+'-abi_dump'
+# Download and untar abi dump if not present
+if not os.path.exists(abi_dump):
+    # Check DPDK_ABI_TAR_URI for the location of the tarballs local or web
+    tar_uri_env = 'DPDK_ABI_TAR_URI'
+    if tar_uri_env in os.environ:
+        abi_tar_uri = os.environ[tar_uri_env]
+        if abi_tar_uri.startswith('http'):
+            # Wget the required tarball
+            os.popen('wget '+os.path.join(abi_tar_uri,abi_dump)+'.tar.gz >/dev/null 2>&1').read()
+        else:
+            abi_tar_uri = os.path.abspath(abi_tar_uri)
+            os.popen('cp '+os.path.join(abi_tar_uri,abi_dump)+'.tar.gz . >/dev/null 2>&1').read()
+    # Check tarball was downloaded
+    if os.path.isfile(abi_dump+'.tar.gz'):
+        os.popen('tar -xzf '+abi_dump+'.tar.gz >/dev/null 2>&1').read()
+        os.popen('rm -rf '+abi_dump+'.tar.gz').read()
+    # If the tarball was not found then generate it
+    else:
+        os.popen(os.path.join(devtools_path,'gen-abi-tarball.py')+' -t '+tag+' -a '+arch+' >/dev/null 2>&1').read()
+        if not os.path.isfile(abi_dump+'.tar.gz'):
+            print('ERROR ABI check generation failed '+os.path.join(devtools_path,'gen-abi-tarball.py')+' -t '+tag+' -a '+arch)
+            exit()
+        os.popen('tar -xzf '+abi_dump+'.tar.gz >/dev/null 2>&1').read()
+        os.popen('rm -rf '+abi_dump+'.tar.gz').read()
+
+# Tell user where specified directory is
+print(os.path.abspath(abi_dump))