[U-Boot] [PATCH v2 3/4] patman: Add the concept of multiple projects
Doug Anderson
dianders at chromium.org
Tue Dec 4 01:43:18 CET 2012
There are cases that we want to support different settings (or maybe
even different aliases) for different projects. Add support for this
by:
* Adding detection for two big projects: U-Boot and Linux.
* Adding default settings for Linux (U-Boot is already good with the
standard patman defaults).
* Extend the new "settings" feature in .patman to specify per-project
settings.
Signed-off-by: Doug Anderson <dianders at chromium.org>
---
Changes in v2:
- Added requested short option: '-p'.
tools/patman/README | 13 ++++
tools/patman/patman.py | 9 +++-
tools/patman/project.py | 43 +++++++++++++
tools/patman/settings.py | 147 +++++++++++++++++++++++++++++++++++++++++++++-
4 files changed, 208 insertions(+), 4 deletions(-)
create mode 100644 tools/patman/project.py
diff --git a/tools/patman/README b/tools/patman/README
index 2743da9..1832ebd 100644
--- a/tools/patman/README
+++ b/tools/patman/README
@@ -114,6 +114,19 @@ verbose: True
<<<
+If you want to adjust settings (or aliases) that affect just a single
+project you can add a section that looks like [project_settings] or
+[project_alias]. If you want to use tags for your linux work, you could
+do:
+
+>>>
+
+[linux_settings]
+process_tags: True
+
+<<<
+
+
How to run it
=============
diff --git a/tools/patman/patman.py b/tools/patman/patman.py
index b327c67..2e9e5dc 100755
--- a/tools/patman/patman.py
+++ b/tools/patman/patman.py
@@ -34,6 +34,7 @@ import checkpatch
import command
import gitutil
import patchstream
+import project
import settings
import terminal
import test
@@ -59,6 +60,9 @@ parser.add_option('--cc-cmd', dest='cc_cmd', type='string', action='store',
default=None, help='Output cc list for patch file (used by git)')
parser.add_option('--no-tags', action='store_false', dest='process_tags',
default=True, help="Don't process subject tags as aliaes")
+parser.add_option('-p', '--project', default=project.DetectProject(),
+ help="Project name; affects default option values and "
+ "aliases [default: %default]")
parser.usage = """patman [options]
@@ -66,7 +70,10 @@ Create patches from commits in a branch, check them and email them as
specified by tags you place in the commits. Use -n to """
-settings.Setup(parser, '')
+# Parse options twice: first to get the project and second to handle
+# defaults properly (which depends on project).
+(options, args) = parser.parse_args()
+settings.Setup(parser, options.project, '')
(options, args) = parser.parse_args()
# Run our meagre tests
diff --git a/tools/patman/project.py b/tools/patman/project.py
new file mode 100644
index 0000000..4f7b2b3
--- /dev/null
+++ b/tools/patman/project.py
@@ -0,0 +1,43 @@
+# Copyright (c) 2012 The Chromium OS Authors.
+#
+# See file CREDITS for list of people who contributed to this
+# project.
+#
+# 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; either version 2 of
+# the License, or (at your option) any later version.
+#
+# 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.path
+
+import gitutil
+
+def DetectProject():
+ """Autodetect the name of the current project.
+
+ This looks for signature files/directories that are unlikely to exist except
+ in the given project.
+
+ Returns:
+ The name of the project, like "linux" or "u-boot". Returns "unknown"
+ if we can't detect the project.
+ """
+ top_level = gitutil.GetTopLevel()
+
+ if os.path.exists(os.path.join(top_level, "include", "u-boot")):
+ return "u-boot"
+ elif os.path.exists(os.path.join(top_level, "kernel")):
+ return "linux"
+
+ return "unknown"
diff --git a/tools/patman/settings.py b/tools/patman/settings.py
index 5208f7d..084d1b8 100644
--- a/tools/patman/settings.py
+++ b/tools/patman/settings.py
@@ -26,6 +26,140 @@ import re
import command
import gitutil
+"""Default settings per-project.
+
+These are used by _ProjectConfigParser. Settings names should match
+the "dest" of the option parser from patman.py.
+"""
+_default_settings = {
+ "u-boot": {},
+ "linux": {
+ "process_tags": "False",
+ }
+}
+
+class _ProjectConfigParser(ConfigParser.SafeConfigParser):
+ """ConfigParser that handles projects.
+
+ There are two main goals of this class:
+ - Load project-specific default settings.
+ - Merge general default settings/aliases with project-specific ones.
+
+ # Sample config used for tests below...
+ >>> import StringIO
+ >>> sample_config = '''
+ ... [alias]
+ ... me: Peter P. <likesspiders at example.com>
+ ... enemies: Evil <evil at example.com>
+ ...
+ ... [sm_alias]
+ ... enemies: Green G. <ugly at example.com>
+ ...
+ ... [sm2_alias]
+ ... enemies: Doc O. <pus at example.com>
+ ...
+ ... [settings]
+ ... am_hero: True
+ ... '''
+
+ # Check to make sure that bogus project gets general alias.
+ >>> config = _ProjectConfigParser("zzz")
+ >>> config.readfp(StringIO.StringIO(sample_config))
+ >>> config.get("alias", "enemies")
+ 'Evil <evil at example.com>'
+
+ # Check to make sure that alias gets overridden by project.
+ >>> config = _ProjectConfigParser("sm")
+ >>> config.readfp(StringIO.StringIO(sample_config))
+ >>> config.get("alias", "enemies")
+ 'Green G. <ugly at example.com>'
+
+ # Check to make sure that settings get merged with project.
+ >>> config = _ProjectConfigParser("linux")
+ >>> config.readfp(StringIO.StringIO(sample_config))
+ >>> sorted(config.items("settings"))
+ [('am_hero', 'True'), ('process_tags', 'False')]
+
+ # Check to make sure that settings works with unknown project.
+ >>> config = _ProjectConfigParser("unknown")
+ >>> config.readfp(StringIO.StringIO(sample_config))
+ >>> sorted(config.items("settings"))
+ [('am_hero', 'True')]
+ """
+ def __init__(self, project_name):
+ """Construct _ProjectConfigParser.
+
+ In addition to standard SafeConfigParser initialization, this also loads
+ project defaults.
+
+ Args:
+ project_name: The name of the project.
+ """
+ self._project_name = project_name
+ ConfigParser.SafeConfigParser.__init__(self)
+
+ # Update the project settings in the config based on
+ # the _default_settings global.
+ project_settings = "%s_settings" % project_name
+ if not self.has_section(project_settings):
+ self.add_section(project_settings)
+ project_defaults = _default_settings.get(project_name, {})
+ for setting_name, setting_value in project_defaults.iteritems():
+ self.set(project_settings, setting_name, setting_value)
+
+ def get(self, section, option, *args, **kwargs):
+ """Extend SafeConfigParser to try project_section before section.
+
+ Args:
+ See SafeConfigParser.
+ Returns:
+ See SafeConfigParser.
+ """
+ try:
+ return ConfigParser.SafeConfigParser.get(
+ self, "%s_%s" % (self._project_name, section), option,
+ *args, **kwargs
+ )
+ except (ConfigParser.NoSectionError, ConfigParser.NoOptionError):
+ return ConfigParser.SafeConfigParser.get(
+ self, section, option, *args, **kwargs
+ )
+
+ def items(self, section, *args, **kwargs):
+ """Extend SafeConfigParser to add project_section to section.
+
+ Args:
+ See SafeConfigParser.
+ Returns:
+ See SafeConfigParser.
+ """
+ project_items = []
+ has_project_section = False
+ top_items = []
+
+ # Get items from the project section
+ try:
+ project_items = ConfigParser.SafeConfigParser.items(
+ self, "%s_%s" % (self._project_name, section), *args, **kwargs
+ )
+ has_project_section = True
+ except ConfigParser.NoSectionError:
+ pass
+
+ # Get top-level items
+ try:
+ top_items = ConfigParser.SafeConfigParser.items(
+ self, section, *args, **kwargs
+ )
+ except ConfigParser.NoSectionError:
+ # If neither section exists raise the error on...
+ if not has_project_section:
+ raise
+
+ item_dict = dict(top_items)
+ item_dict.update(project_items)
+ return item_dict.items()
+
def ReadGitAliases(fname):
"""Read a git alias file. This is in the form used by git:
@@ -102,7 +236,7 @@ def _UpdateDefaults(parser, config):
Args:
parser: An instance of an OptionParser whose defaults will be
updated.
- config: An instance of SafeConfigParser that we will query
+ config: An instance of _ProjectConfigParser that we will query
for settings.
"""
defaults = parser.get_default_values()
@@ -117,14 +251,16 @@ def _UpdateDefaults(parser, config):
else:
print "WARNING: Unknown setting %s" % name
-def Setup(parser, config_fname=''):
+def Setup(parser, project_name, config_fname=''):
"""Set up the settings module by reading config files.
Args:
parser: The parser to update
+ project_name: Name of project that we're working on; we'll look
+ for sections named "project_section" as well.
config_fname: Config filename to read ('' for default)
"""
- config = ConfigParser.SafeConfigParser()
+ config = _ProjectConfigParser(project_name)
if config_fname == '':
config_fname = '%s/.patman' % os.getenv('HOME')
@@ -141,3 +277,8 @@ def Setup(parser, config_fname=''):
# These are the aliases we understand, indexed by alias. Each member is a list.
alias = {}
+
+if __name__ == "__main__":
+ import doctest
+
+ doctest.testmod()
--
1.7.7.3
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