[dpdk-dev] [PATCH v2 2/4] devtools: add generation of compressed abi dump archives

[Conor Walsh <conor.walsh@intel.com>]

This patch adds a script that generates a compressed archive
containing .dump files which can be used to perform ABI
breakage checking for the build specified in the parameters.
Invoke using "./gen-abi-tarball.py -t <tag> -a <arch> [-cf <cross-file>]"
 - <tag>: dpdk tag e.g. "v20.11"
 - <arch>: required architecture e.g. "arm" or "x86_64"
 - <cross-file>: configuration file for cross compiling for another
                 system, this flag is not required.
                 e.g. "config/arm/arm64_armv8_linux_gcc"
E.g. "./gen-abi-tarball.py -t latest -a x86_64"
If a compiler is not specified using the CC environmental variable then
the script will default to using gcc.
Using these parameters the script will produce a .tar.gz archive
containing .dump files required to do ABI breakage checking

Signed-off-by: Conor Walsh <conor.walsh@intel.com>
---
 devtools/gen-abi-tarball.py | 125 ++++++++++++++++++++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100755 devtools/gen-abi-tarball.py

diff --git a/devtools/gen-abi-tarball.py b/devtools/gen-abi-tarball.py
new file mode 100755
index 000000000..2104b4ee6
--- /dev/null
+++ b/devtools/gen-abi-tarball.py
@@ -0,0 +1,125 @@
+#!/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 generate ABI dump tarballs\n'+
+                                       'Supported environmental variables\n'+
+                                       '\t- CC: The required compiler will be determined using this environmental variable.\n')
+parser.add_argument('-t', '--tag', type=str, dest='tag', help='DPDK tag e.g. latest or v20.11')
+parser.add_argument('-cf', '--cross-file', type=str, dest='crosscompile', help='Set the location of a cross compile config')
+parser.add_argument('-a', '--arch', type=str, dest='arch', help='Arch arm or x86_64')
+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'
+    print('No tag supplied defaulting to latest')
+
+# Get the cross-compile option
+if args.crosscompile:
+    cross_comp = args.crosscompile
+    if not args.arch:
+        print('ERROR Arch must be set using -a when using cross compile')
+        exit()
+    cross_comp = os.path.abspath(cross_comp)
+    cross_comp_meson = '--cross-file '+cross_comp
+else:
+    cross_comp = ''
+    cross_comp_meson = ''
+
+# Get the required system architecture if not supplied set as x86_64
+if args.arch:
+    arch = args.arch
+else:
+    arch = os.popen('uname -m').read().strip()
+    print('No system architecture supplied defaulting to '+arch)
+
+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 is not in the DPDK repo 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]
+    comp_default = ''
+else:
+    print('No compiler specified, defaulting to gcc')
+    comp = 'gcc'
+    comp_default = 'CC=gcc'
+
+# Print the configuration to the user
+print('\nSelected Build: '+tag+', Compiler: '+comp+', Architecture: '+arch+', Cross Compile: '+cross_comp)
+
+# Store the base directory script is working from
+baseDir = os.getcwd()
+# Store devtools dir
+devtoolsDir = os.path.abspath(os.path.dirname(os.path.realpath(sys.argv[0])))
+
+# Create directory for DPDK git repo and build
+try:
+    os.mkdir('dump_dpdk')
+except OSError as error:
+    print('ERROR The dump_dpdk directory could not be created, ensure it does not exist before start')
+    exit()
+os.chdir('dump_dpdk')
+# Clone DPDK and switch to specified tag
+print('Cloning '+tag+' from DPDK git')
+os.popen('git clone --quiet http://dpdk.org/git/dpdk >/dev/null').read()
+os.chdir('dpdk')
+os.popen('git checkout --quiet '+tag+' >/dev/null').read()
+
+# Create build folder with meson and set debug build and cross compile (if needed)
+print('Configuring Meson')
+os.popen(comp_default+' meson dumpbuild '+cross_comp_meson+' >/dev/null').read()
+os.chdir('dumpbuild')
+os.popen('meson configure -Dbuildtype=debug >/dev/null').read()
+print('Building DPDK . . .')
+#Build DPDK with ninja
+os.popen('ninja >/dev/null').read()
+gccDir = os.getcwd()
+
+# Create directory for abi dump files
+dumpDir = os.path.join(baseDir,tag+'-'+comp+'-'+arch+'-abi_dump')
+try:
+    os.mkdir(dumpDir)
+except OSError as error:
+    print('ERROR The '+dumpDir+' directory could not be created')
+    os.popen('rm -rf '+os.path.join(baseDir,'dump_dpdk')).read()
+    exit()
+
+# Create dump files and output to dump directory
+print('Generating ABI dump files')
+genabiout = os.popen(os.path.join(devtoolsDir,'gen-abi.sh')+' '+gccDir).read()
+os.popen('cp dump/* '+dumpDir).read()
+
+# Compress the dump directory
+print('Creating Tarball of dump files')
+os.chdir(baseDir)
+origSize = os.popen('du -sh '+dumpDir+' | sed "s/\s.*$//"').read()
+os.popen('tar -czf '+dumpDir.split('/')[-1]+'.tar.gz '+dumpDir.split('/')[-1]+' >/dev/null').read()
+newSize = os.popen('du -sh '+dumpDir+'.tar.gz | sed "s/\s.*$//"').read()
+
+# Remove all temporary directories
+print('Cleaning up temporary directories')
+os.popen('rm -rf '+dumpDir).read()
+os.popen('rm -rf '+os.path.join(baseDir,'dump_dpdk')).read()
+
+#Print output of the script to the user
+print('\nDump of DPDK ABI '+tag+' is available in '+dumpDir.split('/')[-1]+'.tar.gz (Original Size: '+origSize.strip()+', Compressed Size:'+newSize.strip()+')\n')
-- 
2.25.1