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Merge pull request #115 from epics-containers/dev
Tidy up where we get files from
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,90 @@ | ||
| import shutil | ||
| import subprocess | ||
| from pathlib import Path | ||
| from typing import List | ||
|
|
||
| import typer | ||
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| from ibek.globals import IOC_FOLDER, SYMLINKS | ||
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| def move_file(src: Path, dest: Path, binary: List[str]): | ||
| """ | ||
| Move a file / tree / symlink from src to dest, stripping symbols from | ||
| binaries if they are in the binary list. | ||
| """ | ||
| dest.parent.mkdir(exist_ok=True, parents=True) | ||
|
|
||
| if src.is_symlink(): | ||
| # copy the symlink | ||
| shutil.rmtree(dest, ignore_errors=True) | ||
| dest = dest.parent | ||
| typer.echo(f"Symlink {src} to {dest}") | ||
| shutil.copy(src, dest, follow_symlinks=False) | ||
| else: | ||
| typer.echo(f"Moving {src} to {dest}") | ||
| if subprocess.call(["bash", "-c", f"mv {src} {dest}"]) > 0: | ||
| raise RuntimeError(f"Failed to move {src} to {dest}") | ||
| if dest.name in binary: | ||
| # strip the symbols from the binary | ||
| cmd = f"strip $(find {dest} -type f) &> /dev/null" | ||
| subprocess.call(["bash", "-c", cmd]) | ||
|
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|
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| def extract_assets(destination: Path, source: Path, extras: List[Path], defaults: bool): | ||
| """ | ||
| Find all the runtime assets in an EPICS installation and copy them to a | ||
| new folder hierarchy for packaging into a container runtime stage. | ||
| This should be performed in a throw away container stage (runtime_prep) | ||
| as it is destructive of the source folder, because it uses move for speed. | ||
| """ | ||
| asset_matches = "bin|configure|db|dbd|include|lib|template|config|*.sh" | ||
|
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||
| just_copy = ( | ||
| [ | ||
| source / "support" / "configure", | ||
| SYMLINKS, | ||
| IOC_FOLDER, | ||
| Path("/venv"), | ||
| ] | ||
| if defaults | ||
| else [] | ||
| ) | ||
|
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| # identify EPICS modules as folders with binary output folders | ||
| binary = ["bin", "lib"] | ||
|
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| binaries: List[Path] = [] | ||
| for find in binary: | ||
| # only look two levels deep | ||
| binaries.extend(source.glob(f"*/*/{find}")) | ||
| binaries.extend(source.glob(f"*/{find}")) | ||
|
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| modules = [binary.parent for binary in binaries] | ||
|
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| destination.mkdir(exist_ok=True, parents=True) | ||
| for module in modules: | ||
| # make sure dest folder exists | ||
| destination_module = destination / module.relative_to("/") | ||
|
|
||
| # use globs to make a list of the things we want to copy | ||
| asset_globs = [module.glob(match) for match in asset_matches.split("|")] | ||
| assets: List[Path] = [ | ||
| asset for asset_glob in asset_globs for asset in asset_glob | ||
| ] | ||
|
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||
| for asset in assets: | ||
| src = module / asset | ||
| if src.exists(): | ||
| dest_file = destination_module / asset.relative_to(module) | ||
| move_file(src, dest_file, binary) | ||
|
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||
| extra_files = just_copy + extras | ||
| for asset in extra_files: | ||
| src = source / asset | ||
| if src.exists(): | ||
| dest_file = destination / asset.relative_to("/") | ||
| move_file(src, dest_file, binary) | ||
| else: | ||
| raise RuntimeError(f"extra runtime asset {src} missing") |
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