Remove some main commands and/or default options from waf in wscript - waf

Question

I have a waf script which adds some options, therefore I use Options from the waflib.
A minimal working example is:
from waflib import Context, Options
from waflib.Tools.compiler_c import c_compiler
def options(opt):
opt.load('compiler_c')
def configure(cnf):
cnf.load('compiler_c')
cnf.env.abc = 'def'
def build(bld):
print('hello')
Which lead to a lot of options I do not support, but others I would like to or have to support. The full list of default support commands is shown below. But how do I remove the options that are actually not supported like
some main commands, like e.g., dist, step and install or
some options like e.g., --no-msvs-lazy or
some Configuration options like e.g., -t or
completely the whole section Installation and uninstallation options
The full ouput of options is then:
waf [commands] [options]
Main commands (example: ./waf build -j4)
build : executes the build
clean : cleans the project
configure: configures the project
dist : makes a tarball for redistributing the sources
distcheck: checks if the project compiles (tarball from 'dist')
distclean: removes build folders and data
install : installs the targets on the system
list : lists the targets to execute
step : executes tasks in a step-by-step fashion, for debugging
uninstall: removes the targets installed
Options:
--version show program's version number and exit
-c COLORS, --color=COLORS
whether to use colors (yes/no/auto) [default: auto]
-j JOBS, --jobs=JOBS amount of parallel jobs (8)
-k, --keep continue despite errors (-kk to try harder)
-v, --verbose verbosity level -v -vv or -vvv [default: 0]
--zones=ZONES debugging zones (task_gen, deps, tasks, etc)
-h, --help show this help message and exit
--msvc_version=MSVC_VERSION
msvc version, eg: "msvc 10.0,msvc 9.0"
--msvc_targets=MSVC_TARGETS
msvc targets, eg: "x64,arm"
--no-msvc-lazy lazily check msvc target environments
Configuration options:
-o OUT, --out=OUT build dir for the project
-t TOP, --top=TOP src dir for the project
--prefix=PREFIX installation prefix [default: 'C:\\users\\user\\appdata\\local\\temp']
--bindir=BINDIR bindir
--libdir=LIBDIR libdir
--check-c-compiler=CHECK_C_COMPILER
list of C compilers to try [msvc gcc clang]
Build and installation options:
-p, --progress -p: progress bar; -pp: ide output
--targets=TARGETS task generators, e.g. "target1,target2"
Step options:
--files=FILES files to process, by regexp, e.g. "*/main.c,*/test/main.o"
Installation and uninstallation options:
--destdir=DESTDIR installation root [default: '']
-f, --force force file installation
--distcheck-args=ARGS
arguments to pass to distcheck

Answer 1

For options, The option context has a parser attribute which is a python optparse.OptionParser. You can use the remove_option method of OptionParser:
def options(opt):
opt.parser.remove_option("--top")
opt.parser.remove_option("--no-msvs-lazy")
For commands, there is a metaclass in waf that automatically register Context classes (see waflib.Context sources).
So all Context classes are stored in the global variable waflib.Context.classes. To get rid of them you can manipulate this variable. For instance to get rid of StepContext and such, you can do something like:
import waflib
def options(opt):
all_contexts = waflib.Context.classes
all_contexts.remove(waflib.Build.StepContext)
all_contexts.remove(waflib.Build.InstallContext)
all_contexts.remove(waflib.Build.UninstallContext)
Commands dist/distcheck are special case defined in waflib.Scripting. It's not easy to get rid of them.