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-rw-r--r--.travis/linux-mingw/scan_dll.py106
1 files changed, 106 insertions, 0 deletions
diff --git a/.travis/linux-mingw/scan_dll.py b/.travis/linux-mingw/scan_dll.py
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+++ b/.travis/linux-mingw/scan_dll.py
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+import pefile
+import sys
+import re
+import os
+import queue
+import shutil
+
+# constant definitions
+KNOWN_SYS_DLLS = ['WINMM.DLL', 'MSVCRT.DLL', 'VERSION.DLL', 'MPR.DLL',
+ 'DWMAPI.DLL', 'UXTHEME.DLL', 'DNSAPI.DLL', 'IPHLPAPI.DLL']
+# below is for Ubuntu 18.04 with specified PPA enabled, if you are using
+# other distro or different repositories, change the following accordingly
+DLL_PATH = [
+ '/usr/x86_64-w64-mingw32/bin/',
+ '/usr/x86_64-w64-mingw32/lib/',
+ '/usr/lib/gcc/x86_64-w64-mingw32/7.3-posix/'
+]
+
+missing = []
+
+
+def parse_imports(file_name):
+ results = []
+ pe = pefile.PE(file_name, fast_load=True)
+ pe.parse_data_directories()
+
+ for entry in pe.DIRECTORY_ENTRY_IMPORT:
+ current = entry.dll.decode()
+ current_u = current.upper() # b/c Windows is often case insensitive
+ # here we filter out system dlls
+ # dll w/ names like *32.dll are likely to be system dlls
+ if current_u.upper() not in KNOWN_SYS_DLLS and not re.match(string=current_u, pattern=r'.*32\.DLL'):
+ results.append(current)
+
+ return results
+
+
+def parse_imports_recursive(file_name, path_list=[]):
+ q = queue.Queue() # create a FIFO queue
+ # file_name can be a string or a list for the convience
+ if isinstance(file_name, str):
+ q.put(file_name)
+ elif isinstance(file_name, list):
+ for i in file_name:
+ q.put(i)
+ full_list = []
+ while q.qsize():
+ current = q.get_nowait()
+ print('> %s' % current)
+ deps = parse_imports(current)
+ # if this dll does not have any import, ignore it
+ if not deps:
+ continue
+ for dep in deps:
+ # the dependency already included in the list, skip
+ if dep in full_list:
+ continue
+ # find the requested dll in the provided paths
+ full_path = find_dll(dep)
+ if not full_path:
+ missing.append(dep)
+ continue
+ full_list.append(dep)
+ q.put(full_path)
+ path_list.append(full_path)
+ return full_list
+
+
+def find_dll(name):
+ for path in DLL_PATH:
+ for root, _, files in os.walk(path):
+ for f in files:
+ if name.lower() == f.lower():
+ return os.path.join(root, f)
+
+
+def deploy(name, dst, dry_run=False):
+ dlls_path = []
+ parse_imports_recursive(name, dlls_path)
+ for dll_entry in dlls_path:
+ if not dry_run:
+ shutil.copy(dll_entry, dst)
+ else:
+ print('[Dry-Run] Copy %s to %s' % (dll_entry, dst))
+ print('Deploy completed.')
+ return dlls_path
+
+
+def main():
+ if len(sys.argv) < 3:
+ print('Usage: %s [files to examine ...] [target deploy directory]')
+ return 1
+ to_deploy = sys.argv[1:-1]
+ tgt_dir = sys.argv[-1]
+ if not os.path.isdir(tgt_dir):
+ print('%s is not a directory.' % tgt_dir)
+ return 1
+ print('Scanning dependencies...')
+ deploy(to_deploy, tgt_dir)
+ if missing:
+ print('Following DLLs are not found: %s' % ('\n'.join(missing)))
+ return 0
+
+
+if __name__ == '__main__':
+ main()