1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91

module ssh {
    export extern main [
        destination?: string@"nu-complete ssh-host"
        -4            # Forces ssh to use IPv4 addresses only.
        -6            # Forces ssh to use IPv6 addresses only.
        -A            # Enables forwarding of connections from an authentication agent such as ssh-agent(1).
        -a            # Disables forwarding of the authentication agent connection.
        -B: string    # bind_interface
        -b: string    # bind_address
        -C            # Requests compression of all data
        -c: string    # cipher_spec
        -D            # [bind_address:]port
        -E: string    # log_file
        -e            # escape_char
        -F: string    # configfile
        -f            # Requests ssh to go to background just before command execution.
        -G            # Causes ssh to print its configuration after evaluating Host and Match blocks and exit.
        -g            # Allows remote hosts to connect to local forwarded ports
        -I: string    # pkcs11
        -i: string@"nu-complete ssh-identity"    # identity_file
        -J: string    # destination
        -K            # Enables GSSAPI-based authentication and forwarding(delegation) of GSSAPI credentials to the server.
        -k            # Disables forwarding (delegation) of GSSAPI credentials to the server.
        -L: string    # [bind_address:]port:host:hostport / [bind_address:]port:remote_socket / local_socket:host:hostport / local_socket:remote_socket
        -l: string    # login_name
        -M            # Places the ssh client into “master” mode for connection sharing.
        -m: string    # mac_spec
        -N            # Do not execute a remote command.
        -n            # Redirects stdin from /dev/null (5) for details.
        -O: string    # ctl_cmd
        -o: string    # option
    ]
    
    def parse-host [file: string] {
        let lines = $file | open | lines | str trim
    
        mut result = []
        for $line in $lines {
            let data = $line | parse --regex '^Include\s+(?<file>.+)'
            if ($data | is-not-empty) {
                let include = parse-host ($data.file | first)
                $result = ($result | append $include)
                continue
            }
            let data = $line | parse  --regex '^Host\s+(?<host>.+)'
            if ($data | is-not-empty) {
                let host = $data.host | first
                if ($host == '*') {
                    continue
                }
                $result = ($result | append { 'value': $host, 'description': "" })
                continue;
            }
            let data = $line | parse --regex '^HostName\s+(?<hostname>.+)'
            if ($data | is-not-empty) {
                let last = $result | last | update 'description' ($data.hostname | first)
                $result = ($result | drop | append $last)
            }
        }
        $result
    }
    
    def "nu-complete ssh-host" [] {
        mut files = [
            '/etc/ssh/ssh_config',
            '~/.ssh/config'
        ] | where { |file| $file | path exists }
    
    
        $files | each { |file|
            parse-host $file
        } | flatten
    }
    
    def "nu-complete ssh-identity" [] {
      ls ~/.ssh/
      | where {|f|
          ($f.name | path parse | get extension) == "pub"
        }
      | get name
      | path parse
      | each {|p| {'value': $'~/.ssh/($p.stem)', 'description': $p.stem} }
    }
    
    export def ssh-add-all [] {
        nu-complete ssh-identity
        | each {|s| print $s.value; ^ssh-add ($s.value | path expand); print '' }
        null
    }
}
use ssh *