WIP: facts.server.Users: go through libnss

Author: bauen1

pyinfra/facts/server.py

@@ -441,11 +441,13 @@ class Users(FactBase):
         }
     """
 
-    def command(self):
-        return """
+    def requires_command(self) -> str:
+        return "getent"
 
-        for i in `cat /etc/passwd | cut -d: -f1`; do
-            ENTRY=`grep ^$i: /etc/passwd`;
+    def command(self) -> str:
+        return """
+        for i in `getent passwd | cut -d: -f1`; do
+            ENTRY=`getent passwd | grep ^$i:`;
             LASTLOG_RAW=`(lastlog -u $i 2> /dev/null || lastlogin $i 2> /dev/null)`;
             LASTLOG=`echo $LASTLOG_RAW | grep ^$i | tr -s ' '`;
             PASSWORD=`grep ^$i: /etc/shadow | cut -d: -f2`;

tests/facts/server.Users/mixed.json

@@ -8,7 +8,8 @@
         "freebsd:*:1001:1001:FreeBSD:/home/freebsd:/bin/sh|freebsd|freebsd|freebsd pts/0 10.1.10.10 Thu Aug 31 05:37:58 2023|$bsdpw$",
         "freebsdnologin:*:1001:1001:FreeBSD NoLogin:/home/freebsdnologin:/bin/sh|freebsdnologin|freebsdnologin||"
     ],
-    "command": "for i in `cat /etc/passwd | cut -d: -f1`; do\n            ENTRY=`grep ^$i: /etc/passwd`;\n            LASTLOG_RAW=`(lastlog -u $i 2> /dev/null || lastlogin $i 2> /dev/null)`;\n            LASTLOG=`echo $LASTLOG_RAW | grep ^$i | tr -s ' '`;\n            PASSWORD=`grep ^$i: /etc/shadow | cut -d: -f2`;\n            echo \"$ENTRY|`id -gn $i`|`id -Gn $i`|$LASTLOG|$PASSWORD\";\n        done",
+    "command": "for i in `getent passwd | cut -d: -f1`; do\n            ENTRY=`getent passwd | grep ^$i:`;\n            LASTLOG_RAW=`(lastlog -u $i 2> /dev/null || lastlogin $i 2> /dev/null)`;\n            LASTLOG=`echo $LASTLOG_RAW | grep ^$i | tr -s ' '`;\n            PASSWORD=`grep ^$i: /etc/shadow | cut -d: -f2`;\n            echo \"$ENTRY|`id -gn $i`|`id -Gn $i`|$LASTLOG|$PASSWORD\";\n        done",
+    "requires_command": "getent",
     "fact": {
         "root": {
             "home": "/root",
@@ -104,4 +105,4 @@
             "password": ""
         }
     }
-}
+}