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import os
import re
from util.exceptions import StepFailedError
HOME = os.getenv("HOME")
def run_step(step):
step_type = step["=="]
if step_type == "run":
do_run(step["command"])
elif step_type == "link":
do_link(step["from"], step["to"])
def do_run(command):
print(f"! {command}")
if not os.system(command) == 0:
raise StepFailedError("Non-zero return code")
def do_link(source, destination):
destination = re.sub(r"^~/", HOME + "/", destination)
print(f"Linking {source} -> {destination}")
try:
os.link(source, destination)
except OSError as e:
if e.errno == 17:
print(f"File {destination} already exists")
else:
raise StepFailedError("Link raised exeption: " + str(e)) from e
except Exception as e:
raise StepFailedError("Link raised exeption: " + str(e)) from e
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