bitbake: copy bb.fetch to bb.fetch2 as initial code base for fetcher overhaul

Signed-off-by: Yu Ke <ke.yu@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 118 insertions, 0 deletions

diff --git a/bitbake/lib/bb/fetch2/ssh.py b/bitbake/lib/bb/fetch2/ssh.py
new file mode 100644
index 000000000..86c76f4e4
--- /dev/null
+++ b/bitbake/lib/bb/fetch2/ssh.py
@@ -0,0 +1,118 @@
+# ex:ts=4:sw=4:sts=4:et
+# -*- tab-width: 4; c-basic-offset: 4; indent-tabs-mode: nil -*-
+'''
+BitBake 'Fetch' implementations
+
+This implementation is for Secure Shell (SSH), and attempts to comply with the
+IETF secsh internet draft:
+    http://tools.ietf.org/wg/secsh/draft-ietf-secsh-scp-sftp-ssh-uri/
+
+    Currently does not support the sftp parameters, as this uses scp
+    Also does not support the 'fingerprint' connection parameter.
+
+'''
+
+# Copyright (C) 2006  OpenedHand Ltd.
+#
+#
+# Based in part on svk.py:
+#    Copyright (C) 2006 Holger Hans Peter Freyther
+#    Based on svn.py:
+#        Copyright (C) 2003, 2004  Chris Larson
+#        Based on functions from the base bb module:
+#            Copyright 2003 Holger Schurig
+#
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+import re, os
+from   bb import data
+from   bb.fetch import Fetch
+from   bb.fetch import FetchError
+
+
+__pattern__ = re.compile(r'''
+ \s*                 # Skip leading whitespace
+ ssh://              # scheme
+ (                   # Optional username/password block
+  (?P<user>\S+)      # username
+  (:(?P<pass>\S+))?  # colon followed by the password (optional)
+ )?
+ (?P<cparam>(;[^;]+)*)?  # connection parameters block (optional)
+ @
+ (?P<host>\S+?)          # non-greedy match of the host
+ (:(?P<port>[0-9]+))?    # colon followed by the port (optional)
+ /
+ (?P<path>[^;]+)         # path on the remote system, may be absolute or relative,
+                         # and may include the use of '~' to reference the remote home
+                         # directory
+ (?P<sparam>(;[^;]+)*)?  # parameters block (optional)
+ $
+''', re.VERBOSE)
+
+class SSH(Fetch):
+    '''Class to fetch a module or modules via Secure Shell'''
+
+    def supports(self, url, urldata, d):
+        return __pattern__.match(url) != None
+
+    def localpath(self, url, urldata, d):
+        m = __pattern__.match(url)
+        path = m.group('path')
+        host = m.group('host')
+        lpath = os.path.join(data.getVar('DL_DIR', d, True), host, os.path.basename(path))
+        return lpath
+
+    def go(self, url, urldata, d):
+        dldir = data.getVar('DL_DIR', d, 1)
+
+        m = __pattern__.match(url)
+        path = m.group('path')
+        host = m.group('host')
+        port = m.group('port')
+        user = m.group('user')
+        password = m.group('pass')
+
+        ldir = os.path.join(dldir, host)
+        lpath = os.path.join(ldir, os.path.basename(path))
+
+        if not os.path.exists(ldir):
+            os.makedirs(ldir)
+
+        if port:
+            port = '-P %s' % port
+        else:
+            port = ''
+
+        if user:
+            fr = user
+            if password:
+                fr += ':%s' % password
+            fr += '@%s' % host
+        else:
+            fr = host
+        fr += ':%s' % path
+
+
+        import commands
+        cmd = 'scp -B -r %s %s %s/' % (
+            port,
+            commands.mkarg(fr),
+            commands.mkarg(ldir)
+        )
+
+        (exitstatus, output) = commands.getstatusoutput(cmd)
+        if exitstatus != 0:
+            print(output)
+            raise FetchError('Unable to fetch %s' % url)