process function and docs

docgen.sh

@@ -20,6 +20,7 @@ pydocmd simple jc.parsers.ifconfig+ > ../docs/parsers/ifconfig.md
 pydocmd simple jc.parsers.ini+ > ../docs/parsers/ini.md
 pydocmd simple jc.parsers.iptables+ > ../docs/parsers/iptables.md
 pydocmd simple jc.parsers.jobs+ > ../docs/parsers/jobs.md
+pydocmd simple jc.parsers.last+ > ../docs/parsers/last.md
 pydocmd simple jc.parsers.ls+ > ../docs/parsers/ls.md
 pydocmd simple jc.parsers.lsblk+ > ../docs/parsers/lsblk.md
 pydocmd simple jc.parsers.lsmod+ > ../docs/parsers/lsmod.md

docs/parsers/last.md

@@ -0,0 +1,118 @@
+# jc.parsers.last
+jc - JSON CLI output utility last Parser
+
+Usage:
+
+    specify --last as the first argument if the piped input is coming from last or lastb
+
+Compatibility:
+
+    'linux', 'darwin', 'aix', 'freebsd'
+
+Examples:
+
+    $ last | jc --last -p
+    [
+      {
+        "user": "kbrazil",
+        "tty": "ttys002",
+        "hostname": null,
+        "login": "Thu Feb 27 14:31",
+        "logout": "still logged in"
+      },
+      {
+        "user": "kbrazil",
+        "tty": "ttys003",
+        "hostname": null,
+        "login": "Thu Feb 27 10:38",
+        "logout": "10:38",
+        "duration": "00:00"
+      },
+      {
+        "user": "kbrazil",
+        "tty": "ttys003",
+        "hostname": null,
+        "login": "Thu Feb 27 10:18",
+        "logout": "10:18",
+        "duration": "00:00"
+      },
+      ...
+    ]
+
+    $ last | jc --last -p -r
+    [
+      {
+        "user": "kbrazil",
+        "tty": "ttys002",
+        "hostname": "-",
+        "login": "Thu Feb 27 14:31",
+        "logout": "still_logged_in"
+      },
+      {
+        "user": "kbrazil",
+        "tty": "ttys003",
+        "hostname": "-",
+        "login": "Thu Feb 27 10:38",
+        "logout": "10:38",
+        "duration": "00:00"
+      },
+      {
+        "user": "kbrazil",
+        "tty": "ttys003",
+        "hostname": "-",
+        "login": "Thu Feb 27 10:18",
+        "logout": "10:18",
+        "duration": "00:00"
+      },
+      ...
+    ]
+
+
+## info
+```python
+info(self, /, *args, **kwargs)
+```
+
+## process
+```python
+process(proc_data)
+```
+
+Final processing to conform to the schema.
+
+Parameters:
+
+    proc_data:   (dictionary) raw structured data to process
+
+Returns:
+
+    List of dictionaries. Structured data with the following schema:
+
+    [
+      {
+        "user":       string,
+        "tty":        string,
+        "hostname":   string,
+        "login":      string,
+        "logout":     string,
+        "duration":   string
+      }
+    ]
+
+## parse
+```python
+parse(data, raw=False, quiet=False)
+```
+
+Main text parsing function
+
+Parameters:
+
+    data:        (string)  text data to parse
+    raw:         (boolean) output preprocessed JSON if True
+    quiet:       (boolean) suppress warning messages if True
+
+Returns:
+
+    List of dictionaries. Raw or processed structured data.
+

jc/parsers/last.py

@@ -11,10 +11,61 @@ Compatibility:
 Examples:
 
     $ last | jc --last -p
-    []
+    [
+      {
+        "user": "kbrazil",
+        "tty": "ttys002",
+        "hostname": null,
+        "login": "Thu Feb 27 14:31",
+        "logout": "still logged in"
+      },
+      {
+        "user": "kbrazil",
+        "tty": "ttys003",
+        "hostname": null,
+        "login": "Thu Feb 27 10:38",
+        "logout": "10:38",
+        "duration": "00:00"
+      },
+      {
+        "user": "kbrazil",
+        "tty": "ttys003",
+        "hostname": null,
+        "login": "Thu Feb 27 10:18",
+        "logout": "10:18",
+        "duration": "00:00"
+      },
+      ...
+    ]
 
     $ last | jc --last -p -r
-    []
+    [
+      {
+        "user": "kbrazil",
+        "tty": "ttys002",
+        "hostname": "-",
+        "login": "Thu Feb 27 14:31",
+        "logout": "still_logged_in"
+      },
+      {
+        "user": "kbrazil",
+        "tty": "ttys003",
+        "hostname": "-",
+        "login": "Thu Feb 27 10:38",
+        "logout": "10:38",
+        "duration": "00:00"
+      },
+      {
+        "user": "kbrazil",
+        "tty": "ttys003",
+        "hostname": "-",
+        "login": "Thu Feb 27 10:18",
+        "logout": "10:18",
+        "duration": "00:00"
+      },
+      ...
+    ]
+
 """
 import re
 import jc.utils
@@ -49,14 +100,28 @@ def process(proc_data):
 
         [
           {
-            "last":     string,
-            "bar":     boolean,
-            "baz":     integer
+            "user":       string,
+            "tty":        string,
+            "hostname":   string,
+            "login":      string,
+            "logout":     string,
+            "duration":   string
           }
         ]
     """
+    for entry in proc_data:
+        if 'user' in entry and entry['user'] == 'system_boot':
+            entry['user'] = 'system boot'
+
+        if 'tty' in entry and entry['tty'] == '~':
+            entry['tty'] = None
+
+        if 'hostname' in entry and entry['hostname'] == '-':
+            entry['hostname'] = None
+
+        if 'logout' in entry and entry['logout'] == 'still_logged_in':
+            entry['logout'] = 'still logged in'
 
-    # rebuild output for added semantic information
     return proc_data