build: Set macOS minimum version to Qt min version

[quassel.git] / scripts / build / macosx_qt.py

diff --git a/scripts/build/macosx_qt.py b/scripts/build/macosx_qt.py
new file mode 100755 (executable)
index 0000000..3955364
--- /dev/null
+++ b/scripts/build/macosx_qt.py
@@ -0,0 +1,108 @@
+#!/usr/bin/python
+# -*- coding: iso-8859-1 -*-
+
+################################################################################
+#                                                                              #
+# 2008 June 27th by Marcus 'EgS' Eggenberger <egs@quassel-irc.org>             #
+#                                                                              #
+# The author disclaims copyright to this source code.                          #
+# This Python Script is in the PUBLIC DOMAIN.                                  #
+#                                                                              #
+################################################################################
+
+# ==============================
+#  Imports
+# ==============================
+import os
+from subprocess import Popen, PIPE
+
+# ==============================
+#  Global Functions
+# ==============================
+def qtProperty(qtProperty):
+    """
+    Query persistent property of Qt via qmake
+    """
+    VALID_PROPERTIES = ['QT_INSTALL_PREFIX',
+                        'QT_INSTALL_DATA',
+                        'QT_INSTALL_DOCS',
+                        'QT_INSTALL_HEADERS',
+                        'QT_INSTALL_LIBS',
+                        'QT_INSTALL_BINS',
+                        'QT_INSTALL_PLUGINS',
+                        'QT_INSTALL_IMPORTS',
+                        'QT_INSTALL_TRANSLATIONS',
+                        'QT_INSTALL_CONFIGURATION',
+                        'QT_INSTALL_EXAMPLES',
+                        'QT_INSTALL_DEMOS',
+                        'QMAKE_MKSPECS',
+                        'QMAKE_VERSION',
+                        'QT_VERSION'
+                        ]
+    if qtProperty not in VALID_PROPERTIES:
+        return None
+
+    qmakeProcess = Popen('qmake -query %s' % qtProperty, shell=True, stdout=PIPE, stderr=PIPE)
+    result = qmakeProcess.stdout.read().strip()
+    qmakeProcess.stdout.close()
+    qmakeProcess.wait()
+    return result
+
+def qtMakespec(qtMakespec):
+    """
+    Query a Makespec value of Qt via qmake
+    """
+
+    VALID_PROPERTIES = ['QMAKE_MACOSX_DEPLOYMENT_TARGET',
+                        ]
+    if qtMakespec not in VALID_PROPERTIES:
+        return None
+
+    # QMAKE_MACOSX_DEPLOYMENT_TARGET sadly cannot be queried in the traditional way
+    #
+    # Inspired by https://code.qt.io/cgit/pyside/pyside-setup.git/tree/qtinfo.py?h=5.6
+    # Simplified, no caching, etc, as we're just looking for the macOS version.
+    # If a cleaner solution is desired, look into license compatibility in
+    # order to simply copy the above code.
+
+    current_dir = os.getcwd()
+    qmakeFakeProjectFile = os.path.join(current_dir, "qmake_empty_project.txt")
+    qmakeStashFile = os.path.join(current_dir, ".qmake.stash")
+    # Make an empty file
+    open(qmakeFakeProjectFile, 'a').close()
+
+    qmakeProcess = Popen('qmake -E %s' % qmakeFakeProjectFile, shell=True, stdout=PIPE, stderr=PIPE)
+    result = qmakeProcess.stdout.read().strip()
+    qmakeProcess.stdout.close()
+    qmakeProcess.wait()
+
+    # Clean up temporary files
+    try:
+        os.remove(qmakeFakeProjectFile)
+    except OSError:
+        pass
+    try:
+        os.remove(qmakeStashFile)
+    except OSError:
+        pass
+
+    # Result should be like this:
+    # PROPERTY = VALUE\n
+    result_list = result.splitlines()
+    # Clear result so if nothing matches, nothing is returned
+    result = None
+    # Search keys
+    for line in result_list:
+        if not '=' in line:
+            # Ignore lines without '='
+            continue
+
+        # Find property = value
+        parts = line.split('=', 1)
+        prop = parts[0].strip()
+        value = parts[1].strip()
+        if (prop == qtMakespec):
+            result = value
+            break
+
+    return result