[WIP] Add Linux support

requirements.txt

@@ -1,3 +1,3 @@
 colorama==0.3.9
 oletools==0.60
-pyinstaller==4.10
+pyinstaller==6.3.0

scripts/linux/build

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+set -e
+
+export PYTHON_ARCH=$(python -c "import sys;print('x64' if sys.maxsize > 2**32 else 'x86')")
+
+python ./scripts/linux/update-version-info.py
+pyinstaller --onefile ./src/diff.py --name=git-xl-diff-$PYTHON_ARCH --version-file ./scripts/windows/git-xl-version-info.py --icon ./scripts/windows/git-xl-logo.ico
+pyinstaller --onefile ./src/cli.py --name=git-xl-$PYTHON_ARCH --version-file ./scripts/windows/git-xl-version-info.py --icon ./scripts/windows/git-xl-logo.ico

scripts/linux/update-version-info.py

@@ -0,0 +1,66 @@
+import os
+import json
+import re
+
+base_directory = os.path.join('scripts', 'linux')
+
+# read build number, repo tag name and git commit hash from env vars 
+build = os.getenv('APPVEYOR_BUILD_NUMBER', '0') 
+version = os.getenv('APPVEYOR_REPO_TAG_NAME', '0.0.0')
+commit = os.environ['APPVEYOR_REPO_COMMIT'][:7] if os.getenv('APPVEYOR_REPO_COMMIT') else 'dev'
+
+print('-----------')
+print('Version tag: %s' % version)
+print('Build number: %s' % build)
+print('Commit hash: %s' % commit)
+
+major, minor, patch = version.split('.')
+print(f'Generate file version: {major}.{minor}.{patch}.{build}')
+print('-----------')
+
+
+
+s = f"""VSVersionInfo(
+  ffi=FixedFileInfo(
+    filevers=({major}, {minor}, {patch}, {build}),
+    prodvers=({major}, {minor}, {patch}, {build}),
+    mask=0x3f,
+    flags=0x0,
+    OS=0x40004,
+    fileType=0x1,
+    subtype=0x0,
+    date=(0, 0)
+    ),
+  kids=[
+    StringFileInfo(
+      [
+      StringTable(
+        u'040904B0',
+        [StringStruct(u'CompanyName', u'Zoomer Analytics LLC'),
+        StringStruct(u'FileDescription', u'Git XL'),
+        StringStruct(u'FileVersion', u'{major}.{minor}.{patch}'),
+        StringStruct(u'InternalName', u'git-xl'),
+        StringStruct(u'LegalCopyright', u'Zoomer Analytics LLC'),
+        StringStruct(u'OriginalFilename', u'git-xl'),
+        StringStruct(u'ProductName', u'Git XL'),
+        StringStruct(u'ProductVersion', u'{major}.{minor}.{patch}')])
+      ]), 
+    VarFileInfo([VarStruct(u'Translation', [1033, 1200])])
+  ]
+)"""
+
+# update 'git-xl-version-info.py
+path = os.path.join(base_directory, 'git-xl-version-info.py')
+with open(path, 'w') as f:
+    f.write(s)
+
+# update git-xl.py (VERSION and COMMIT)
+path = 'src/cli.py'
+with open(path, 'r') as f:
+    s = f.read()
+
+s = re.sub("VERSION\s*=\s*('|\")\d\.\d.\d('|\")", f"VERSION = '{major}.{minor}.{patch}'", s, re.MULTILINE)
+s = re.sub("GIT_COMMIT\s*=\s*('|\")[a-zA-Z0-9]*('|\")", f"GIT_COMMIT = '{commit}'", s, re.MULTILINE)
+
+with open(path, 'w') as f:
+    f.write(s)