New parser: PostgreSQL Password File

Being able to read the PostgreSQL Password File as JSON would be handy and it is a very simple format:

The file .pgpass in a user’s home directory… should contain lines of the following format:

hostname:port:database:username:password

Each of the first four fields can be a literal value, or *, which matches anything. The password field from the first line that matches the current connection parameters will be used. (Therefore, put more-specific entries first when you are using wildcards.) If an entry needs to contain : or , escape this character with .

So cat /var/lib/postgresql/.pgpass | jc -yp --pgpass could perhaps return something like:

---
- hostname: localhost
  port: 5432
  database: foo
  username: bar
  password: baz

[kellyjonbrazil]

Hi @chriscroome - I have a working version in dev now: https://github.com/kellyjonbrazil/jc/blob/dev/jc/parsers/pgpass.py

$ cat pgpass.txt                
dbserver:443:db1:dbuser:pwd123
dbserver2:8888:inventory:joeuser:abc123
ax1234:1234:tables:dbadmin:password1

dbserver3:8888:inventory:joeuser:abc123
# comment

localhost:5555:table\\1:user\:w\:colon:password123
hostname:port:database:username:password

$ cat pgpass.txt| jc --pgpass -p                         
[
  {
    "hostname": "dbserver",
    "port": "443",
    "database": "db1",
    "username": "dbuser",
    "password": "pwd123"
  },
  {
    "hostname": "dbserver2",
    "port": "8888",
    "database": "inventory",
    "username": "joeuser",
    "password": "abc123"
  },
  {
    "hostname": "ax1234",
    "port": "1234",
    "database": "tables",
    "username": "dbadmin",
    "password": "password1"
  },
  {
    "hostname": "dbserver3",
    "port": "8888",
    "database": "inventory",
    "username": "joeuser",
    "password": "abc123"
  },
  {
    "hostname": "localhost",
    "port": "5555",
    "database": "table\\1",
    "username": "user:w:colon",
    "password": "password123"
  },
  {
    "hostname": "hostname",
    "port": "port",
    "database": "database",
    "username": "username",
    "password": "password"
  }
]

It can handle commented lines and also escaped \ and : characters. Should the port field be an integer? (Actually, probably not since the field can be filled with an * wildcard)

[kellyjonbrazil]

Looks good - I’ll start working on some new parsers for the next release soon.