sync

src/docker_compose/cfg/env.py

@@ -0,0 +1,53 @@
+import re
+import secrets
+from collections.abc import Iterator
+from dataclasses import dataclass
+from functools import partial
+from pathlib import Path
+from typing import Self, final
+
+from docker_compose.cfg.replace import ReplaceDynamic
+
+
+@final
+@dataclass
+class Env:
+    pswd = ReplaceDynamic.auto_format(
+        "pswd",
+        partial(secrets.token_urlsafe, 12),
+    )
+    data: dict[str, str]
+
+    @classmethod
+    def get_lines(cls, data: str) -> Iterator[tuple[str, str]]:
+        line_valid = re.compile(r"(^\w+)=(.+)\s*")
+        for line in data.splitlines():
+            res = line_valid.match(line)
+            if not res:
+                continue
+            yield res.group(1), res.group(2)
+
+    @classmethod
+    def from_path(cls, path: Path) -> Self:
+        with path.open(mode="rt") as f:
+            data = f.read()
+        return cls({k: v for k, v in cls.get_lines(data)})
+
+    @property
+    def with_pass(self)->Iterator[tuple[str,str]]:
+        for k,v in self.data.items():
+            if self.pswd.src not in v:
+                yield k,v
+                continue
+            yield k,self.pswd(v)
+
+
+    @property
+    def as_txt(self) -> str:
+        return '\n'.join(sorted(map('='.join, self.with_pass)))
+
+    @classmethod
+    def copy(cls, src: Path, dest: Path) -> None:
+        txt = cls.from_path(src).as_txt
+        with dest.open(mode="wt") as f:
+            _ = f.write(txt)