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Improve behaviour regarding "help" (#509)

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Also accept -h for help. 

This is the usual behaviour of most utils that accept --help.

Also, now an empty call to ./emsdk does not print the full help, as
discussed in #509.
This commit is contained in:
Orestis Floros
2020-05-28 22:25:23 +02:00
committed by GitHub
parent 5613488e75
commit 855c51d36d
1 changed files with 6 additions and 6 deletions
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12
emsdk.py
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@@ -2677,11 +2677,11 @@ def error_on_missing_tool(name):
def main(): def main():
global emscripten_config_directory, BUILD_FOR_TESTING, ENABLE_LLVM_ASSERTIONS, TTY_OUTPUT global emscripten_config_directory, BUILD_FOR_TESTING, ENABLE_LLVM_ASSERTIONS, TTY_OUTPUT
if len(sys.argv) <= 1 or sys.argv[1] == 'help' or sys.argv[1] == '--help': if len(sys.argv) <= 1:
if len(sys.argv) <= 1: print("Missing command; Type 'emsdk help' to get a list of commands.")
print(' emsdk: No command given. Please call one of the following:') return 1
else: if sys.argv[1] in ('help', '--help', '-h'):
print(' emsdk: Available commands:') print(' emsdk: Available commands:')
print(''' print('''
emsdk list [--old] [--uses] - Lists all available SDKs and tools and their emsdk list [--old] [--uses] - Lists all available SDKs and tools and their
@@ -2798,7 +2798,7 @@ def main():
'activate' commands and the invocation of 'emsdk_env', or otherwise 'activate' commands and the invocation of 'emsdk_env', or otherwise
these commands will default to operating on the default build type these commands will default to operating on the default build type
which in and RelWithDebInfo.''') which in and RelWithDebInfo.''')
return 1 return 0
# Extracts a boolean command line argument from sys.argv and returns True if it was present # Extracts a boolean command line argument from sys.argv and returns True if it was present
def extract_bool_arg(name): def extract_bool_arg(name):