wic: Add mic w/pykickstart

This is the starting point for the implemention described in [YOCTO
3847] which came to the conclusion that it would make sense to use
kickstart syntax to implement image creation in OpenEmbedded.  I
subsequently realized that there was an existing tool that already
implemented image creation using kickstart syntax, the Tizen/Meego mic
tool.  As such, it made sense to use that as a starting point - this
commit essentially just copies the relevant Python code from the MIC
tool to the scripts/lib dir, where it can be accessed by the
previously created wic tool.

Most of this will be removed or renamed by later commits, since we're
initially focusing on partitioning only.  Care should be taken so that
we can easily add back any additional functionality should we decide
later to expand the tool, though (we may also want to contribute our
local changes to the mic tool to the Tizen project if it makes sense,
and therefore should avoid gratuitous changes to the original code if
possible).

Added the /mic subdir from Tizen mic repo as a starting point:

 git clone git://review.tizen.org/tools/mic.git

 For reference, the top commit:

 commit 20164175ddc234a17b8a12c33d04b012347b1530
 Author: Gui Chen <gui.chen@intel.com>
 Date:   Sun Jun 30 22:32:16 2013 -0400

    bump up to 0.19.2

Also added the /plugins subdir, moved to under the /mic subdir (to
match the default plugin_dir location in mic.conf.in, which was
renamed to yocto-image.conf (moved and renamed by later patches) and
put into /scripts.

Signed-off-by: Tom Zanussi <tom.zanussi@linux.intel.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 309 insertions, 0 deletions

diff --git a/scripts/lib/mic/msger.py b/scripts/lib/mic/msger.py
new file mode 100644
index 0000000000..9afc85be93
--- /dev/null
+++ b/scripts/lib/mic/msger.py
@@ -0,0 +1,309 @@
+#!/usr/bin/python -tt
+# vim: ai ts=4 sts=4 et sw=4
+#
+# Copyright (c) 2009, 2010, 2011 Intel, Inc.
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the Free
+# Software Foundation; version 2 of the License
+#
+# 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., 59
+# Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+import os,sys
+import re
+import time
+
+__ALL__ = ['set_mode',
+           'get_loglevel',
+           'set_loglevel',
+           'set_logfile',
+           'raw',
+           'debug',
+           'verbose',
+           'info',
+           'warning',
+           'error',
+           'ask',
+           'pause',
+          ]
+
+# COLORs in ANSI
+INFO_COLOR = 32 # green
+WARN_COLOR = 33 # yellow
+ERR_COLOR  = 31 # red
+ASK_COLOR  = 34 # blue
+NO_COLOR = 0
+
+PREFIX_RE = re.compile('^<(.*?)>\s*(.*)', re.S)
+
+INTERACTIVE = True
+
+LOG_LEVEL = 1
+LOG_LEVELS = {
+                'quiet': 0,
+                'normal': 1,
+                'verbose': 2,
+                'debug': 3,
+                'never': 4,
+             }
+
+LOG_FILE_FP = None
+LOG_CONTENT = ''
+CATCHERR_BUFFILE_FD = -1
+CATCHERR_BUFFILE_PATH = None
+CATCHERR_SAVED_2 = -1
+
+def _general_print(head, color, msg = None, stream = None, level = 'normal'):
+    global LOG_CONTENT
+    if not stream:
+        stream = sys.stdout
+
+    if LOG_LEVELS[level] > LOG_LEVEL:
+        # skip
+        return
+
+    # encode raw 'unicode' str to utf8 encoded str
+    if msg and isinstance(msg, unicode):
+        msg = msg.encode('utf-8', 'ignore')
+
+    errormsg = ''
+    if CATCHERR_BUFFILE_FD > 0:
+        size = os.lseek(CATCHERR_BUFFILE_FD , 0, os.SEEK_END)
+        os.lseek(CATCHERR_BUFFILE_FD, 0, os.SEEK_SET)
+        errormsg = os.read(CATCHERR_BUFFILE_FD, size)
+        os.ftruncate(CATCHERR_BUFFILE_FD, 0)
+
+    # append error msg to LOG
+    if errormsg:
+        LOG_CONTENT += errormsg
+
+    # append normal msg to LOG
+    save_msg = msg.strip() if msg else None
+    if save_msg:
+        timestr = time.strftime("[%m/%d %H:%M:%S %Z] ", time.localtime())
+        LOG_CONTENT += timestr + save_msg + '\n'
+
+    if errormsg:
+        _color_print('', NO_COLOR, errormsg, stream, level)
+
+    _color_print(head, color, msg, stream, level)
+
+def _color_print(head, color, msg, stream, level):
+    colored = True
+    if color == NO_COLOR or \
+       not stream.isatty() or \
+       os.getenv('ANSI_COLORS_DISABLED') is not None:
+        colored = False
+
+    if head.startswith('\r'):
+        # need not \n at last
+        newline = False
+    else:
+        newline = True
+
+    if colored:
+        head = '\033[%dm%s:\033[0m ' %(color, head)
+        if not newline:
+            # ESC cmd to clear line
+            head = '\033[2K' + head
+    else:
+        if head:
+            head += ': '
+            if head.startswith('\r'):
+                head = head.lstrip()
+                newline = True
+
+    if msg is not None:
+        if isinstance(msg, unicode):
+            msg = msg.encode('utf8', 'ignore')
+
+        stream.write('%s%s' % (head, msg))
+        if newline:
+            stream.write('\n')
+
+    stream.flush()
+
+def _color_perror(head, color, msg, level = 'normal'):
+    if CATCHERR_BUFFILE_FD > 0:
+        _general_print(head, color, msg, sys.stdout, level)
+    else:
+        _general_print(head, color, msg, sys.stderr, level)
+
+def _split_msg(head, msg):
+    if isinstance(msg, list):
+        msg = '\n'.join(map(str, msg))
+
+    if msg.startswith('\n'):
+        # means print \n at first
+        msg = msg.lstrip()
+        head = '\n' + head
+
+    elif msg.startswith('\r'):
+        # means print \r at first
+        msg = msg.lstrip()
+        head = '\r' + head
+
+    m = PREFIX_RE.match(msg)
+    if m:
+        head += ' <%s>' % m.group(1)
+        msg = m.group(2)
+
+    return head, msg
+
+def get_loglevel():
+    return (k for k,v in LOG_LEVELS.items() if v==LOG_LEVEL).next()
+
+def set_loglevel(level):
+    global LOG_LEVEL
+    if level not in LOG_LEVELS:
+        # no effect
+        return
+
+    LOG_LEVEL = LOG_LEVELS[level]
+
+def set_interactive(mode=True):
+    global INTERACTIVE
+    if mode:
+        INTERACTIVE = True
+    else:
+        INTERACTIVE = False
+
+def log(msg=''):
+    # log msg to LOG_CONTENT then save to logfile
+    global LOG_CONTENT
+    if msg:
+        LOG_CONTENT += msg
+
+def raw(msg=''):
+    _general_print('', NO_COLOR, msg)
+
+def info(msg):
+    head, msg = _split_msg('Info', msg)
+    _general_print(head, INFO_COLOR, msg)
+
+def verbose(msg):
+    head, msg = _split_msg('Verbose', msg)
+    _general_print(head, INFO_COLOR, msg, level = 'verbose')
+
+def warning(msg):
+    head, msg = _split_msg('Warning', msg)
+    _color_perror(head, WARN_COLOR, msg)
+
+def debug(msg):
+    head, msg = _split_msg('Debug', msg)
+    _color_perror(head, ERR_COLOR, msg, level = 'debug')
+
+def error(msg):
+    head, msg = _split_msg('Error', msg)
+    _color_perror(head, ERR_COLOR, msg)
+    sys.exit(1)
+
+def ask(msg, default=True):
+    _general_print('\rQ', ASK_COLOR, '')
+    try:
+        if default:
+            msg += '(Y/n) '
+        else:
+            msg += '(y/N) '
+        if INTERACTIVE:
+            while True:
+                repl = raw_input(msg)
+                if repl.lower() == 'y':
+                    return True
+                elif repl.lower() == 'n':
+                    return False
+                elif not repl.strip():
+                    # <Enter>
+                    return default
+
+                # else loop
+        else:
+            if default:
+                msg += ' Y'
+            else:
+                msg += ' N'
+            _general_print('', NO_COLOR, msg)
+
+            return default
+    except KeyboardInterrupt:
+        sys.stdout.write('\n')
+        sys.exit(2)
+
+def choice(msg, choices, default=0):
+    if default >= len(choices):
+        return None
+    _general_print('\rQ', ASK_COLOR, '')
+    try:
+        msg += " [%s] " % '/'.join(choices)
+        if INTERACTIVE:
+            while True:
+                repl = raw_input(msg)
+                if repl in choices:
+                    return repl
+                elif not repl.strip():
+                    return choices[default]
+        else:
+            msg += choices[default]
+            _general_print('', NO_COLOR, msg)
+
+            return choices[default]
+    except KeyboardInterrupt:
+        sys.stdout.write('\n')
+        sys.exit(2)
+
+def pause(msg=None):
+    if INTERACTIVE:
+        _general_print('\rQ', ASK_COLOR, '')
+        if msg is None:
+            msg = 'press <ENTER> to continue ...'
+        raw_input(msg)
+
+def set_logfile(fpath):
+    global LOG_FILE_FP
+
+    def _savelogf():
+        if LOG_FILE_FP:
+            fp = open(LOG_FILE_FP, 'w')
+            fp.write(LOG_CONTENT)
+            fp.close()
+
+    if LOG_FILE_FP is not None:
+        warning('duplicate log file configuration')
+
+    LOG_FILE_FP = fpath
+
+    import atexit
+    atexit.register(_savelogf)
+
+def enable_logstderr(fpath):
+    global CATCHERR_BUFFILE_FD
+    global CATCHERR_BUFFILE_PATH
+    global CATCHERR_SAVED_2
+
+    if os.path.exists(fpath):
+        os.remove(fpath)
+    CATCHERR_BUFFILE_PATH = fpath
+    CATCHERR_BUFFILE_FD = os.open(CATCHERR_BUFFILE_PATH, os.O_RDWR|os.O_CREAT)
+    CATCHERR_SAVED_2 = os.dup(2)
+    os.dup2(CATCHERR_BUFFILE_FD, 2)
+
+def disable_logstderr():
+    global CATCHERR_BUFFILE_FD
+    global CATCHERR_BUFFILE_PATH
+    global CATCHERR_SAVED_2
+
+    raw(msg = None) # flush message buffer and print it.
+    os.dup2(CATCHERR_SAVED_2, 2)
+    os.close(CATCHERR_SAVED_2)
+    os.close(CATCHERR_BUFFILE_FD)
+    os.unlink(CATCHERR_BUFFILE_PATH)
+    CATCHERR_BUFFILE_FD = -1
+    CATCHERR_BUFFILE_PATH = None
+    CATCHERR_SAVED_2 = -1