Fix February dict key.

README.rst

@@ -29,12 +29,15 @@ Installation
 
 * install `extfslib`_
 * copy ``ulzx`` to ``~/.local/share/mc/extfs.d/``
-* add or change entry for files handle in ``~/.config/mc/mc.ext``::
+* add or change entry for files handle in ``~/.config/mc/mc.ext``:
 
-    # lzx
-    regex/\.[lL][zZ][xX]$
-         Open=%cd %p/ulzx://
-         View=%view{ascii} unlzx -v %f
+.. code:: ini
+
+   [lzx]
+   Regex=\.lzx$
+   RegexIgnoreCase=true
+   Open=%cd %p/ulzx://
+   View=%view{ascii} unlzx -v %f
 
 License
 =======

ulzx

@@ -3,51 +3,52 @@
 Read only, Amiga LZX[1] archiver Virtual filesystem executive for Midnight
 Commander.
 
-Tested against python 3.6, unlzx[1] 1.1 and mc 4.8.22
+Tested against python 3.8, unlzx[1] 1.1 and mc 4.8.22
 
 [1] ftp://us.aminet.net/pub/aminet/misc/unix/unlzx.c.gz.readme
 
 Changelog:
+    1.3 Code cleanup
     1.2 Use python3
     1.1 Moved common code into extfslib library
     1.0 Initial release
 
 Author: Roman 'gryf' Dobosz <gryf73@gmail.com>
-Date: 2019-06-30
-Version: 1.2
+Date: 2023-10-20
+Version: 1.3
 Licence: BSD
 """
 import os
-import sys
 import re
 import shutil
-from subprocess import call, CalledProcessError
-from tempfile import mkdtemp, mkstemp
+import subprocess
+import sys
+import tempfile
 
-from extfslib import Archive, parse_args
+import extfslib
 
 
-class ULzx(Archive):
-    """Archive handle. Provides interface to MC's extfs subsystem"""
-    LINE_PAT = re.compile(b"^\s+(?P<size>\d+)\s+"
-                          b"((n/a)|\d+)\s"
-                          b"(?P<time>\d{2}:\d{2}:\d{2})\s+"
-                          b"(?P<date>\d+-[a-z]{3}-\d{4})\s"
-                          b"(?P<perms>[h-][s-][p-][a-][r-][w-][e-][d-])\s"
-                          b"\"(?P<fpath>.*)\"")
-    ARCHIVER = b"unlzx"
-    CMDS = {"list": b"-v",
-            "read": b"-x"}
-    DATETIME = b"%02d-%02d-%s %02d:%02d"
+class ULzx(extfslib.Archive):
+    """LZX archive handle. Provides interface to MC's extfs subsystem"""
+    LINE_PAT = re.compile(r"^\s+(?P<size>\d+)\s+"
+                          r"((n/a)|\d+)\s"
+                          r"(?P<time>\d{2}:\d{2}:\d{2})\s+"
+                          r"(?P<date>\d+-[a-z]{3}-\d{4})\s"
+                          r"(?P<perms>[h-][s-][p-][a-][r-][w-][e-][d-])\s"
+                          r"\"(?P<fpath>.*)\"")
+    ARCHIVER = "unlzx"
+    CMDS = {"list": "-v",
+            "read": "-x"}
+    DATETIME = "%02d-%02d-%s %02d:%02d"
 
     def _get_date(self, time, date):
         """Return MM-DD-YYYY hh:mm formatted date out of time and date
         strings"""
-        month_list = [b"jan", b"feb", b"mar", b"apr", b"may", b"jun", b"jul",
-                      b"aug", b"sep", b"oct", b"nov", b"dec"]
-        day, month, year = date.split(b"-")
+        month_list = ["jan", "feb", "mar", "apr", "may", "jun", "jul",
+                      "aug", "sep", "oct", "nov", "dec"]
+        day, month, year = date.split("-")
         month = month_list.index(month) + 1
-        hours, minutes, dummy = time.split(b":")
+        hours, minutes, dummy = time.split(":")
         return self.DATETIME % (month, int(day), year, int(hours),
                                 int(minutes))
 
@@ -55,11 +56,12 @@ class ULzx(Archive):
         """Prepare archive file listing"""
         contents = []
 
-        out = self._call_command("list")
-        if not out:
-            return
+        out = subprocess.run([self.ARCHIVER, self.CMDS['list'], self._arch],
+                             capture_output=True, encoding="latin-1")
+        if out.stderr:
+            sys.stderr.write(out.stderr)
 
-        for line in out.split(b"\n"):
+        for line in out.stdout.split("\n"):
             match = self.LINE_PAT.match(line)
             if not match:
                 continue
@@ -67,14 +69,14 @@ class ULzx(Archive):
             match_entry = match.groupdict()
             entry = {}
             for key in match_entry:
-                entry[bytes(key, 'utf-8')] = match_entry[key]
+                entry[key] = match_entry[key]
             del match_entry
 
-            entry[b'datetime'] = self._get_date(entry[b'time'], entry[b'date'])
-            entry[b'display_name'] = self._map_name(entry[b'fpath'])
-            entry[b'perms'] = b"-rw-r--r--"  # lzx doesn't store empty dirs
-            entry[b'uid'] = bytes(str(self._uid), 'utf-8')
-            entry[b'gid'] = bytes(str(self._gid), 'utf-8')
+            entry['datetime'] = self._get_date(entry['time'], entry['date'])
+            entry['display_name'] = self._map_name(entry['fpath'])
+            entry['perms'] = "-rw-r--r--"  # lzx doesn't store empty dirs
+            entry['uid'] = str(self._uid)
+            entry['gid'] = str(self._gid)
             contents.append(entry)
 
         return contents
@@ -82,12 +84,12 @@ class ULzx(Archive):
     def list(self):
         """Output contents of the archive to stdout"""
         for entry in self._contents:
-            sys.stdout.buffer.write(self.ITEM % entry)
+            sys.stdout.write(self.ITEM.decode('utf-8') % entry)
         return 0
 
     def run(self, dst):
         """Execute file out of archive"""
-        fdesc, tmp_file = mkstemp()
+        fdesc, tmp_file = tempfile.mkstemp()
         os.close(fdesc)
         result = 0
 
@@ -96,40 +98,41 @@ class ULzx(Archive):
 
         os.chmod(tmp_file, int("700", 8))
 
-        try:
-            result = call([tmp_file])
-        finally:
-            try:
-                os.unlink(tmp_file)
-            except OSError:
-                pass
+        with open(os.devnull, "w") as fnull:
+            result = subprocess.run([tmp_file], stderr=fnull)
+        os.unlink(tmp_file)
 
-        return result
+        return result.returncode
 
     def copyout(self, src, dst):
         """Unfortunately, to copy one file out entire LZX archive have to be
         extracted. For small archives is not a problem, but in relatively big
         one it could be a performance issue."""
-        tmp_dir = mkdtemp()
-        src = self._get_real_name(src)
+        tmp_dir = tempfile.mkdtemp()
+        src = [e['display_name'] for e in self._contents
+               if e['display_name'] == src]
+        if not src:
+            raise IOError("No such file or directory")
+
+        src = src[0].encode('latin-1')
+
         current_dir = os.path.abspath(os.curdir)
         os.chdir(tmp_dir)
 
-        try:
-            with open(os.devnull, "w") as fnull:
-                result = call([self.ARCHIVER, self.CMDS['read'],
-                               os.path.join(current_dir, self._arch)],
-                              stdout=fnull, stderr=fnull)
-            if result == 0:
-                shutil.copy2(src, dst)
-        except CalledProcessError:
-            return 1
-        finally:
-            shutil.rmtree(tmp_dir)
-            os.chdir(current_dir)
+        with open(os.devnull, "w") as fnull:
+            result = subprocess.run([self.ARCHIVER, self.CMDS['read'],
+                                     os.path.join(current_dir, self._arch)],
+                                    stdout=fnull, stderr=fnull)
+        if result.returncode == 0:
+            # use subprocess, as shutil.copy2 will complain about mixing
+            # strings with bytes
+            subprocess.run(['cp', src, dst])
 
-        return result
+        shutil.rmtree(tmp_dir)
+        os.chdir(current_dir)
+
+        return result.returncode
 
 
 if __name__ == "__main__":
-    sys.exit(parse_args(ULzx))
+    sys.exit(extfslib.parse_args(ULzx))