Add python script to build Conan package for Windows 7

.gitignore

+build
\ No newline at end of file

README.md

 # Conan
 
-Pipeline to create Conan package
+## Pipeline to create Conan package for Linux
 
 Conan 2.0.4 for:
 * Linux 32 bits: [conan-2.0.4-linux-i686.zip](https://gitlab.synchrotron-soleil.fr/software-control-system/devtools/conan/-/jobs/artifacts/2.0.4/download?job=linux-i686)
 * Linux 64 bits: [conan-2.0.4-linux-x86_64.zip](https://gitlab.synchrotron-soleil.fr/software-control-system/devtools/git/-/jobs/artifacts/2.0.4/download?job=linux-x86_64)
+
+## Python script to create Conan package for Windows 32 bits
+
+The script `build-windows-i386.py` allows to build Conan package for Windows 7 32 bits.
+
+Prerequisites on path on the build host:
+* Python
+* Git
+
+To launch build:
+```
+python build-windows-i386.py
+```
+
+The build deliveries the archive `build\conan-2.0.4-windows-i386.zip`
+
+Tested with python 3.7 on Windows 7 32 bits. Warning, it is mandatory to use installed version python on Windows 7 to include all dll in package with PytInstaller.

build-windows-i386.py

+import os
+import subprocess
+import urllib.request
+import shutil
+
+CONAN_VERSION = '2.0.4'
+
+CONAN_ROOT = os.path.dirname(os.path.abspath(__file__))
+
+# Remove and recreate build directory
+BUILD_DIR=os.path.join(CONAN_ROOT, 'build')
+os.system(f"rmdir /s /q {BUILD_DIR} > nul 2>&1")
+os.makedirs(BUILD_DIR)
+os.chdir(BUILD_DIR)
+
+# Build Conan with PyInstaller
+conan_dir = os.path.join(BUILD_DIR, 'conan_src')
+subprocess.check_call(['git', 'clone', 'https://github.com/conan-io/conan', conan_dir])
+subprocess.check_call(['git', 'checkout', CONAN_VERSION], cwd=conan_dir)
+subprocess.check_call(['pip', 'install', '-e', conan_dir])
+subprocess.check_call(['python', 'pyinstaller.py'], cwd=conan_dir)
+conan_exe = os.path.join(conan_dir, 'pyinstaller', 'dist', 'conan', 'conan.exe')
+subprocess.check_call([conan_exe, '--version'])
+
+# Add Sectigo CA certificates to Conan CA certificates
+cacert_sectigo=os.path.join(CONAN_ROOT, 'conan_synchrotron-soleil_fr_interm.cer')
+cacert=os.path.join(conan_dir, 'pyinstaller', 'dist', 'conan', 'certifi', 'cacert.pem')
+with open(cacert_sectigo, 'r') as f1:
+    with open(cacert, 'a') as f2:
+        f2.write(f1.read())
+
+# Make archive
+shutil.make_archive(os.path.join(BUILD_DIR, f'conan-{CONAN_VERSION}-windows-i386'), 'zip',
+                    os.path.join(conan_dir, 'pyinstaller', 'dist', 'conan'))