[eit.commands.log] new command "eit log"

server/eit/commands/log.py

@@ -0,0 +1,72 @@
+# -*- coding: utf-8 -*-
+"""
+
+    @author: Fabio Erculiani <lxnay@sabayon.org>
+    @contact: lxnay@sabayon.org
+    @copyright: Fabio Erculiani
+    @license: GPL-2
+
+    B{Entropy Infrastructure Toolkit}.
+
+"""
+import sys
+import os
+import subprocess
+import argparse
+
+from entropy.i18n import _
+
+from eit.commands.descriptor import EitCommandDescriptor
+from eit.commands.command import EitCommand
+
+
+class EitLog(EitCommand):
+    """
+    Main Eit log command.
+    """
+
+    NAME = "log"
+    ALIASES = []
+
+    def parse(self):
+        descriptor = EitCommandDescriptor.obtain_descriptor(
+            EitLog.NAME)
+        parser = argparse.ArgumentParser(
+            description=descriptor.get_description(),
+            formatter_class=argparse.RawDescriptionHelpFormatter,
+            prog="%s %s" % (sys.argv[0], EitLog.NAME))
+
+        parser.add_argument("repo", nargs='?', default=None,
+                            metavar="<repo>", help=_("repository"))
+
+        try:
+            nsargs = parser.parse_args(self._args)
+        except IOError as err:
+            return parser.print_help, []
+
+        return self._call_locked, [self._log, nsargs.repo]
+
+    def _log(self, entropy_server):
+        changelog_path = \
+            entropy_server._get_local_repository_compressed_changelog_file(
+                entropy_server.repository())
+
+        if not (os.path.isfile(changelog_path) and \
+                    os.access(changelog_path, os.R_OK)):
+            entropy_server.output(
+                _("log is not available"),
+                importance=1, level="error")
+            return 1
+
+        proc = subprocess.Popen(
+            "/bin/bzcat \"%s\" | ${PAGER:-/usr/bin/less}" % (
+                changelog_path,), shell = True)
+        return proc.wait()
+
+
+EitCommandDescriptor.register(
+    EitCommandDescriptor(
+        EitLog,
+        EitLog.NAME,
+        _('show log for repository'))
+    )