FreeCAD WebAssembly development snapshot

package/rattler-build/scripts/fix_macos_lib_paths.py

@@ -0,0 +1,99 @@
+import os
+import subprocess
+import re
+import sys
+
+if len(sys.argv) < 1 or "-h" in sys.argv:
+    print("""Usage: python fix_macos_paths.py <scan_path> [-r] [-s]
+
+          Options:
+            -r      scan the directory recursively
+            -s      scan only without fixing absolute paths in LC_RPATH or LC_REEXPORT_DYLIB
+          """)
+    sys.exit(1)
+
+scan_path = os.path.abspath(os.path.expanduser(sys.argv[1]))
+recursive = "-r" in sys.argv
+scanmode = "-s" in sys.argv
+
+def get_lc_paths(output):
+    if "is not an object file" in output:
+        return [], []
+
+    rpath_result = []
+    reexport_result = []
+
+    matches = re.finditer(r'cmd LC_RPATH', output)
+    for match in matches:
+        pos = match.start(0)
+
+        path_match = re.search(r'path (.*) \(offset.+?\)', output[pos:])
+        rpath_result.append(path_match.group(1))
+
+    matches = re.finditer(r'cmd LC_REEXPORT_DYLIB', output)
+    for match in matches:
+        pos = match.start(0)
+
+        path_match = re.search(r'name (.*) \(offset.+?\)', output[pos:])
+        reexport_result.append(path_match.group(1))
+
+    return rpath_result, reexport_result
+
+def remove_rpath(file_path, rpath):
+    subprocess.run(['install_name_tool', '-delete_rpath', rpath, file_path])
+    subprocess.run(['codesign', '--force', '--sign', '-', file_path])
+    print(f'\nRemoved rpath {rpath} from {file_path}')
+
+def change_reexport_dylib(file_path, reexport_dylib):
+    rel_reexport_dylib = "@rpath/" + os.path.basename(reexport_dylib)
+    subprocess.run(['install_name_tool', '-change', reexport_dylib, rel_reexport_dylib, file_path])
+    subprocess.run(['codesign', '--force', '--sign', '-', file_path])
+    print(f'\nChanged reexport dylib {reexport_dylib} to {rel_reexport_dylib} in {file_path}')
+
+def scan_directory(directory, recursive=False):
+    if recursive:
+        print(f"Recursively scanning dir: {directory}")
+    else:
+        print(f"Scanning dir: {directory}")
+
+    for filename in os.listdir(directory):
+        full_path = os.path.join(directory, filename)
+        if recursive and os.path.isdir(full_path):
+            scan_directory(full_path, recursive)
+            continue
+        elif not os.path.isfile(full_path) or os.path.islink(full_path):
+            continue
+
+        try:
+            output = subprocess.check_output(['otool', '-l', full_path], text=True)
+            rpaths, reexport_dylibs = get_lc_paths(output)
+        except:
+            continue
+
+        file_dir = os.path.dirname(full_path)
+        rpaths_processed = set()
+        for rpath in rpaths:
+            if rpath == "@loader_path":
+                rpath = "@loader_path/"
+
+            if os.path.isabs(rpath) and os.path.samefile(file_dir, rpath):
+                if scanmode:
+                    print(f'\nFound absolute path in LC_RPATH: {rpath}\nIn: {full_path}')
+                else:
+                    remove_rpath(full_path, rpath)
+
+            if rpath in rpaths_processed:
+                if scanmode:
+                    print(f'\nFound duplicate RPATH: {rpath}\nIn: {full_path}')
+                else:
+                    remove_rpath(full_path, rpath)
+            rpaths_processed.add(rpath)
+        for reexport_dylib in reexport_dylibs:
+            if os.path.isabs(reexport_dylib):
+                if scanmode:
+                    print(f'\nFound absolute path in LC_REEXPORT_DYLIB: {reexport_dylib}\nIn: {full_path}')
+                else:
+                    change_reexport_dylib(full_path, reexport_dylib)
+
+scan_directory(scan_path, recursive)
+print("Done")