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lxbuildenv: imporive first-time initialization 

Signed-off-by: Sean Cross <sean@xobs.io>
This commit is contained in:
Sean Cross 2018-09-27 16:17:12 +08:00
parent 2550876426
commit d336599e9b
2 changed files with 104 additions and 48 deletions
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2
README.asciidoc
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@ -19,7 +19,7 @@ NOTE: The initial setup process is, admittedly, a little rough. Patches are wel
You can execute `lxbuildenv.py` directly. Run `python lxbuildenv.py --init` to create a new project. This will perform the following steps:
1. Ask you for a main entrypoint name, if `--main` was not set
1. Create a git repository, if one does not already exist
1. Create a git repository, if one does not already exist, unless `--no-git` was set
1. Create a `bin` directory and populate it, if `--no-bin` was not set
1. Create an initial template program

150
lxbuildenv.py
View File

@ -11,6 +11,12 @@ import argparse
DEPS_DIR = "deps"
DEFAULT_DEPS = {
'migen': 'https://github.com/m-labs/migen.git',
'litex': 'https://github.com/enjoy-digital/litex.git',
'litescope': 'https://github.com/enjoy-digital/litescope.git',
'pyserial': 'https://github.com/pyserial/pyserial.git',
}
# Obtain the path to this script, plus a trailing separator. This will
# be used later on to construct various environment variables for paths
# to a variety of support directories.
@ -91,7 +97,7 @@ def fixup_env(script_path, args):
# Set the environment variable "V" to 1. This causes Makefiles to print
# the commands they run, which makes them easier to debug.
if args.lx_verbose:
if "lx_verbose" in args and args.lx_verbose:
os.environ["V"] = "1"
# If the user just wanted to print the environment variables, do that and quit.
@ -234,43 +240,75 @@ def check_submodules(script_path, args):
print("Submodule check: Submodules found")
def main(args):
if args.init:
main_name = os.getcwd().split(os.path.sep)[-1] + '.py'
new_main_name = input('What would you like your main program to be called? [' + main_name + '] ')
if new_main_name is not None and new_main_name != "":
main_name = new_main_name
def lx_git(cmd, *args):
import subprocess
git_cmd = ["git", cmd]
if args is not None:
for arg in args:
git_cmd = git_cmd + [arg]
subprocess.call(git_cmd)
print("Initializing git repository")
if not os.path.exists(DEPS_DIR):
os.mkdir(DEPS_DIR)
def lx_print_deps():
print('Known dependencies:')
for dep in dependency_checkers.keys():
print(' {}'.format(dep))
print('To define a dependency, add a variable inside {} at the top level called LX_DEPENDENCIES and assign it a list or tuple.'.format(sys.argv[0]))
print('For example:')
print('LX_DEPENDENCIES = ("riscv", "vivado")')
os.system("git init")
os.system("git add " + str(__file__))
os.system("git submodule add https://github.com/m-labs/migen.git deps/migen")
os.system("git add deps/migen")
def lx_main(args):
if args.lx_print_env:
fixup_env(script_path, args)
os.system("git submodule add https://github.com/enjoy-digital/litex.git deps/litex")
os.system("git add deps/litex")
elif args.lx_print_deps:
lx_print_deps()
os.system("git submodule add https://github.com/enjoy-digital/litescope deps/litescope")
os.system("git add deps/litescope")
elif args.init:
if args.main is None:
main_name = os.getcwd().split(os.path.sep)[-1] + '.py'
new_main_name = input('What would you like your main program to be called? [' + main_name + '] ')
if new_main_name is not None and new_main_name != "":
main_name = new_main_name
else:
main_name = args.main
if not main_name.endswith('.py'):
main_name = main_name + '.py'
os.system("git submodule add https://github.com/pyserial/pyserial.git deps/pyserial")
os.system("git add deps/pyserial")
if args.no_git:
print("skipping git initialization")
else:
if not os.path.exists(DEPS_DIR):
os.mkdir(DEPS_DIR)
os.system("git submodule update --init --recursive")
if not os.path.exists(".git"):
print("initializing git repository")
lx_git('init')
else:
print("using existing git repository")
lx_git('add', str(__file__))
bin_tools = {
'litex_server': 'litex.soc.tools.remote.litex_server',
'litex_term': 'litex.soc.tools.litex_term',
'mkmscimg': 'litex.soc.tools.mkmscimg',
'mkmscimg': 'litex.soc.tools.mkmscimg',
'litex_sim': 'litex.boards.targets.sim',
'litex_simple': 'litex.boards.targets.simple',
}
bin_template = """
for dep_name, dep_url in DEFAULT_DEPS.items():
dest_path = '{}{}{}'.format(DEPS_DIR, os.path.sep, dep_name)
if not os.path.exists(dest_path):
lx_git('submodule', 'add', dep_url, dest_path)
lx_git('add', dest_path)
lx_git('submodule', 'update', '--init', '--recursive')
if args.no_bin:
print("skipping bin/ initialization")
elif os.path.exists("bin"):
print("bin/ directory exists -- remove bin/ directory to re-initialize")
else:
bin_tools = {
'litex_server': 'litex.soc.tools.remote.litex_server',
'litex_term': 'litex.soc.tools.litex_term',
'mkmscimg': 'litex.soc.tools.mkmscimg',
'litex_sim': 'litex.boards.targets.sim',
'litex_simple': 'litex.boards.targets.simple',
}
bin_template = """
#!/usr/bin/env python3
import sys
@ -284,8 +322,6 @@ sys.path.insert(0, script_path)
import lxbuildenv
"""
# Create binary programs under bin/
if not os.path.exists("bin"):
print("Creating binaries")
os.mkdir("bin")
for bin_name, python_module in bin_tools.items():
@ -293,10 +329,15 @@ import lxbuildenv
new_bin.write(bin_template)
new_bin.write('from ' + python_module + ' import main\n')
new_bin.write('main()\n')
os.system('git add --chmod=+x bin' + os.path.sep + bin_name)
if not args.no_git:
lx_git('add', '--chmod=+x', 'bin' + os.path.sep + bin_name)
with open(main_name, 'w') as m:
program_template = """#!/usr/bin/env python3
if os.path.exists(main_name):
print("skipping creation of {}: file exists".format(main_name))
else:
print("creating main program {}".format(main_name))
with open(main_name, 'w') as m:
program_template = """#!/usr/bin/env python3
# This variable defines all the external programs that this module
# relies on. lxbuildenv reads this variable in order to ensure
# the build will finish without exiting due to missing third-party
@ -351,8 +392,12 @@ def main():
if __name__ == "__main__":
main()
"""
m.write(program_template)
return
m.write(program_template)
if not args.no_git:
lx_git("add", main_name)
else:
return False
return True
# For the main command, parse args and hand it off to main()
if __name__ == "__main__":
@ -360,14 +405,30 @@ if __name__ == "__main__":
description="Wrap Python code to enable quickstart",
add_help=False)
parser.add_argument(
"-h", "--help", help="show this help message and exit", action="help"
"-h", "--help", '--lx-help', help="show this help message and exit", action="help"
)
parser.add_argument(
'-i', '--init', help='initialize a new project', action="store_true"
'-i', '--init', '--lx-init', help='initialize a new project', action="store_true"
)
parser.add_argument(
'-m', '--main', '--lx-main', help='name of main project'
)
parser.add_argument(
'--no-bin', '--lx-no-bin', help="don't create a bin/ directory"
)
parser.add_argument(
'--no-git', '--lx-no-git', help="Don't create a git repository"
)
parser.add_argument(
'-e', '--print-env', '--lx-print-env', dest="lx_print_env", help="print environment variable listing for pycharm, vscode, or bash", action="store_true"
)
parser.add_argument(
'-d', '--print-deps', '--lx-print-deps', dest="lx_print_deps", help="print all possible dependencies and then exit", action="store_true"
)
args = parser.parse_args()
main(args)
if not lx_main(args):
parser.print_help()
elif not os.path.isfile(sys.argv[0]):
print("lxbuildenv doesn't operate while in interactive mode")
@ -396,13 +457,8 @@ elif "LXBUILDENV_REEXEC" not in os.environ:
)
(args, rest) = parser.parse_known_args()
if args.lx_all_deps:
print('Known dependencies:')
for dep in dependency_checkers.keys():
print(' {}'.format(dep))
print('To define a dependency, add a variable inside {} at the top level called LX_DEPENDENCIES and assign it a list or tuple.'.format(sys.argv[0]))
print('For example:')
print('LX_DEPENDENCIES = ("riscv", "vivado")')
if args.lx_print_deps:
lx_print_deps()
sys.exit(0)
deps = get_required_dependencies(sys.argv[0])