Merge pull request #63 from zweger/develop-birthtime

Add support for birthtime field

Author: Changaco

libarchive/entry.py

@@ -134,6 +134,16 @@ def set_ctime(self, timestamp_sec, timestamp_nsec):
         return ffi.entry_set_ctime(self._entry_p,
                                    timestamp_sec, timestamp_nsec)
 
+    @property
+    def birthtime(self):
+        sec_val = ffi.entry_birthtime(self._entry_p)
+        nsec_val = ffi.entry_birthtime_nsec(self._entry_p)
+        return format_time(sec_val, nsec_val)
+
+    def set_birthtime(self, timestamp_sec, timestamp_nsec):
+        return ffi.entry_set_birthtime(self._entry_p,
+                                       timestamp_sec, timestamp_nsec)
+
     def _getpathname(self):
         return (ffi.entry_pathname_w(self._entry_p) or
                 ffi.entry_pathname(self._entry_p))

libarchive/ffi.py

@@ -114,9 +114,11 @@ def ffi(name, argtypes, restype, errcheck=None):
 
 ffi('entry_filetype', [c_archive_entry_p], c_int)
 ffi('entry_atime', [c_archive_entry_p], c_int)
+ffi('entry_birthtime', [c_archive_entry_p], c_int)
 ffi('entry_mtime', [c_archive_entry_p], c_int)
 ffi('entry_ctime', [c_archive_entry_p], c_int)
 ffi('entry_atime_nsec', [c_archive_entry_p], c_long)
+ffi('entry_birthtime_nsec', [c_archive_entry_p], c_long)
 ffi('entry_mtime_nsec', [c_archive_entry_p], c_long)
 ffi('entry_ctime_nsec', [c_archive_entry_p], c_long)
 ffi('entry_pathname', [c_archive_entry_p], c_char_p)
@@ -141,6 +143,7 @@ def ffi(name, argtypes, restype, errcheck=None):
 ffi('entry_set_atime', [c_archive_entry_p, c_int, c_long], None)
 ffi('entry_set_mtime', [c_archive_entry_p, c_int, c_long], None)
 ffi('entry_set_ctime', [c_archive_entry_p, c_int, c_long], None)
+ffi('entry_set_birthtime', [c_archive_entry_p, c_int, c_long], None)
 
 ffi('entry_update_pathname_utf8', [c_archive_entry_p, c_char_p], None)
 

tests/test_atime_mtime_ctime.py

@@ -3,8 +3,7 @@
 from copy import copy
 from os import stat
 
-from libarchive import (file_reader, file_writer, memory_reader,
-                        memory_writer)
+from libarchive import (file_reader, file_writer, memory_reader, memory_writer)
 
 import pytest
 
@@ -66,53 +65,65 @@ def test_file_atime_ctime(archfmt, timefmt, tmpdir):
 
 @pytest.mark.parametrize('archfmt,timefmt', [('zip', int), ('pax', float)])
 def test_memory_time_setters(archfmt, timefmt):
-    # Create an archive of our libarchive/ directory
+    has_birthtime = archfmt != 'zip'
 
-    atimestamp = (1482144741, 495628118)
-    mtimestamp = (1482155417, 659017086)
-    ctimestamp = (1482145211, 536858081)
+    # Create an archive of our libarchive/ directory
     buf = bytes(bytearray(1000000))
     with memory_writer(buf, archfmt) as archive1:
         archive1.add_files('libarchive/')
 
+    atimestamp = (1482144741, 495628118)
+    mtimestamp = (1482155417, 659017086)
+    ctimestamp = (1482145211, 536858081)
+    btimestamp = (1482144740, 495628118)
     buf2 = bytes(bytearray(1000000))
     with memory_reader(buf) as archive1:
         with memory_writer(buf2, archfmt) as archive2:
             for entry in archive1:
                 entry.set_atime(*atimestamp)
                 entry.set_mtime(*mtimestamp)
                 entry.set_ctime(*ctimestamp)
+                if has_birthtime:
+                    entry.set_birthtime(*btimestamp)
                 archive2.add_entries([entry])
 
     with memory_reader(buf2) as archive2:
         for entry in archive2:
             assert entry.atime == time_check(atimestamp, timefmt)
             assert entry.mtime == time_check(mtimestamp, timefmt)
             assert entry.ctime == time_check(ctimestamp, timefmt)
+            if has_birthtime:
+                assert entry.birthtime == time_check(btimestamp, timefmt)
 
 
 @pytest.mark.parametrize('archfmt,timefmt', [('zip', int), ('pax', float)])
 def test_file_time_setters(archfmt, timefmt, tmpdir):
+    has_birthtime = archfmt != 'zip'
+
     # Create an archive of our libarchive/ directory
     archive_path = tmpdir.join('/test.{0}'.format(archfmt)).strpath
     archive2_path = tmpdir.join('/test2.{0}'.format(archfmt)).strpath
+    with file_writer(archive_path, archfmt) as archive1:
+        archive1.add_files('libarchive/')
 
     atimestamp = (1482144741, 495628118)
     mtimestamp = (1482155417, 659017086)
     ctimestamp = (1482145211, 536858081)
-    with file_writer(archive_path, archfmt) as archive1:
-        archive1.add_files('libarchive/')
-
+    btimestamp = (1482144740, 495628118)
     with file_reader(archive_path) as archive1:
         with file_writer(archive2_path, archfmt) as archive2:
             for entry in archive1:
                 entry.set_atime(*atimestamp)
                 entry.set_mtime(*mtimestamp)
                 entry.set_ctime(*ctimestamp)
+                if has_birthtime:
+                    entry.set_birthtime(*btimestamp)
                 archive2.add_entries([entry])
 
     with file_reader(archive2_path) as archive2:
         for entry in archive2:
             assert entry.atime == time_check(atimestamp, timefmt)
             assert entry.mtime == time_check(mtimestamp, timefmt)
             assert entry.ctime == time_check(ctimestamp, timefmt)
+            if has_birthtime:
+                assert entry.birthtime == time_check(btimestamp, timefmt)