I would like to hear your opinion about the attached module.
I see two uses:
- testing: we could write some tests as it is done in mercurial
- for menu and icon handling in C/C++: The C wrapper would start the
executable in the beginning and communicate via stdin and stdout.
Caching of status queries is already done.
Possible queries:
state of files
global and repository configuration
menu structure (nonrepo, repo and drag)
can be started directly or as a mercurial extension with the command
hg_state (maybe interesting for cutehg?)
More documentation is in the code
Greetings
Simon H.
#!/usr/bin/python
#hg_state.py
#
#
"""
hg_state reads commands from stdin and writes answert to stdout
see function hg_state for details
can be started from cmd line (python hg_state.py),
used as an extension for mrcurial with the command hg_state
or used as a module
"""
import sys, os.path
import mercurial.hg
try: from tortoise import cachethg
except: cachethg = None
try: from tortoise import menuthg
except: menuthg = None
class nullwrite:
def write(*args):
pass
def writelines(*args):
pass
def flush(*args):
pass
def close(*args):
pass
closed = False
def get_config(ui, path):
if not path:
return ';'.join(ui.cdata.sections())
parts = path.split(';', 3)
if len(parts) == 1:
return ';'.join([ c[0] + '=' + c[1] for c in ui.configitems(parts[0])])
elif len(parts) == 2:
return ui.config(parts[0], parts[1], '')
else:
return ui.config(parts[0], parts[1], parts[2])
def list_menu(menu, level=0):
menus = []
for entry in menu:
if entry.isSubmenu():
menus.append('%dSUBMENU' % level)
menus.extend(list_menu(entry.menus, level+1))
else:
menus.append('%d%s' % (level, entry.hgcmd))
return menus
def hg_state(ui = None):
"""
reads commands on stdin and returns the result on stdout
each line input results in one line output
input -> output
------------------------------------------------------
abspath -> s=state
= -> u=config section;...
=section -> u=config name=config value;...
=section;name[;default] -> u=config value
:repopath[;section[;name[;default]]] -> u=config of repo (see above)
;cwd[;file]... -> m=menu for paths
,srcpath;destpath -> m=drag menu
"""
if ui is None:
import mercurial.ui
ui = mercurial.ui.ui()
stdin = sys.stdin
stdout = sys.stdout
stderr = sys.stderr
if ui.debugflag or ui.verbose:
ui.updateopts(interactive=False)
sys.stdout = stderr
else:
ui.updateopts(quiet=True, interactive=False)
sys.stdout = nullwrite()
menus = None
while True:
try:
line = stdin.readline()
if line == '':
break
line = line.strip() # remove \n
if os.path.isabs(line):
stdout.write('s=' + cachethg.get_states(line) + '\n')
continue
l = line and line[0] or ''
if l == '=':
stdout.write('u=' + get_config(ui, line[1:]) + '\n')
elif l == ':':
parts = line[1:].split(';', 2)
repo = mercurial.hg.repository(ui, parts[0])
if len(parts) == 1:
parts.append('')
stdout.write('u=' + get_config(repo.ui, parts[1]) + '\n')
repo = None
elif l == ';':
menus = menus or menuthg.menuThg()
files = line[1:].split(';')
states = cachethg.get_states(files[0])
if not states or states == ' ':
menu = menus.get_norepo_commands(files[0], files[1:])
else:
repo = menuthg.open_repo(files[0])
menu = menus.get_commands(repo, files[0], files[1:])
stdout.write('m=' + ';'.join(list_menu(menu)) + '\n')
del menu
elif l == ',':
menus = menus or menuthg.menuThg()
files = line[1:].split(';')
menu = menus.get_commands_dragdrop(files[:-1], files[-1])
stdout.write('m=' + ';'.join(list_menu(menu)) + '\n')
del menu
elif l == '?':
def yn(val):
return val and 'y' or 'n'
stdout.write('?=cache:%s;menu:%s\n' % (yn(cachethg), yn(menuthg)))
elif l == '':
stdout.write('\n')
else:
stdout.write('i=\n')
stderr.write('Invalid: ' + line + '\n')
except Exception, e:
stdout.write('e=\n')
stderr.write(repr(e)+'\n')
sys.stdout = stdout
cmdtable = {
'hg_state':
(hg_state, []),
}
if __name__ == '__main__':
hg_state()
else:
import mercurial.commands
mercurial.commands.norepo += " hg_state"
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