Remove match statement to support more interpreters

src/python/cram/common.py

@@ -17,11 +17,14 @@ if sys.version_info <= (3, 9, 0):
     Path.readlink = lambda p: Path(os.readlink(str(p)))
 
 
-def sh(global_config,
+def sh(global_config, cmd: List[str], /, env: Optional[dict] = None):
-       cmd: List[str], /,
+    shell = (
-       env: Optional[dict] = None):
+        (global_config or {})
-
+        .get("cram", {})
-    shell = (global_config or {}).get("cram", {}).get("task", {}).get("apply", {}).get("shell", SHELL)
+        .get("task", {})
+        .get("apply", {})
+        .get("shell", SHELL)
+    )
 
     prefix = []
     if env:
@@ -93,21 +96,20 @@ class Package(object):
 def expandvars(s: str) -> str:
     def _repl(m: re.Match) -> str:
         var = m.group(0).lower()
-        match var:
+        if var == "${hostname}":
-            case "${hostname}":
+            return os.uname()[1].split(".")[0]
-                return os.uname()[1].split(".")[0]
+        elif var == "${fqdn}":
-            case "${fqdn}":
+            return os.uname()[1]
-                return os.uname()[1]
+        elif var == "${home}":
-            case "${home}":
+            return os.path.expanduser("~")
-                return os.path.expanduser("~")
+        elif var == "${uname}" | "${sysname}":
-            case "${uname}" | "${sysname}":
+            return platform.system().lower()
-                return platform.system().lower()
+        elif var == "${arch}":
-            case "${arch}":
+            return platform.machine()
-                return platform.machine()
+        elif var == "${release}":
-            case "${release}":
+            return platform.release()
-                return platform.release()
+        else:
-            case _:
+            return os.path.expandvars(m.group(0))
-                return os.path.expandvars(m.group(0))
 
     s = re.sub(r"\${?([^\s}]+)}?", "${\\1}", s)
     return re.sub(r"\$\{.*?\}", _repl, s)