forked from platypush/platypush
platyvenv should generate (and document) a run.sh helper script.
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1 changed files with 33 additions and 2 deletions
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@ -13,6 +13,7 @@ import shutil
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import subprocess
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import sys
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import tempfile
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import textwrap
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from typing import Generator, Sequence
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import venv
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@ -131,6 +132,35 @@ class VenvBuilder:
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subprocess.call([*self._pip_cmd, *pip_deps])
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def _generate_run_sh(self) -> str:
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"""
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Generate a ``run.sh`` script to run the application from a newly built
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virtual environment.
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:return: The location of the generated ``run.sh`` script.
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"""
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run_sh_path = os.path.join(self.output_dir, 'bin', 'run.sh')
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with open(run_sh_path, 'w') as run_sh:
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run_sh.write(
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textwrap.dedent(
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f"""
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#!/bin/bash
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cd {self.output_dir}
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# Activate the virtual environment
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source bin/activate
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# Run the application with the configuration file passed
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# during build
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platypush -c {self.cfgfile} $*
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"""
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)
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)
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os.chmod(run_sh_path, 0o750)
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return run_sh_path
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def build(self):
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"""
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Build a Dockerfile based on a configuration file.
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@ -148,9 +178,10 @@ class VenvBuilder:
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self._prepare_venv()
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self._install_extra_pip_packages(deps)
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run_sh_path = self._generate_run_sh()
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print(
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f'\nVirtual environment created at {self.output_dir}.\n'
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f'Run source {os.path.join(self.output_dir, "bin", "activate")} to activate it.'
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f'\nVirtual environment created under {self.output_dir}.\n'
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f'You can run the application through the {run_sh_path} script.\n'
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)
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@classmethod
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