test/support/server.tcl

   1 proc error_and_quit {config_file error} {
   2     puts "!!COULD NOT START REDIS-SERVER\n"
   3     puts "CONFIGURATION:"
   4     puts [exec cat $config_file]
   5     puts "\nERROR:"
   6     puts [string trim $error]
   7     exit 1
   8 }
   9
  10 proc start_server {filename overrides {code undefined}} {
  11     set data [split [exec cat "test/assets/$filename"] "\n"]
  12     set config {}
  13     foreach line $data {
  14         if {[string length $line] > 0 && [string index $line 0] ne "#"} {
  15             set elements [split $line " "]
  16             set directive [lrange $elements 0 0]
  17             set arguments [lrange $elements 1 end]
  18             dict set config $directive $arguments
  19         }
  20     }
  21
  22     # use a different directory every time a server is started
  23     dict set config dir [tmpdir server]
  24
  25     # apply overrides from arguments
  26     foreach override $overrides {
  27         set directive [lrange $override 0 0]
  28         set arguments [lrange $override 1 end]
  29         dict set config $directive $arguments
  30     }
  31
  32     # write new configuration to temporary file
  33     set config_file [tmpfile redis.conf]
  34     set fp [open $config_file w+]
  35     foreach directive [dict keys $config] {
  36         puts -nonewline $fp "$directive "
  37         puts $fp [dict get $config $directive]
  38     }
  39     close $fp
  40
  41     set stdout [format "%s/%s" [dict get $config "dir"] "stdout"]
  42     set stderr [format "%s/%s" [dict get $config "dir"] "stderr"]
  43     exec ./redis-server $config_file > $stdout 2> $stderr &
  44     after 10
  45
  46     # check that the server actually started
  47     if {[file size $stderr] > 0} {
  48         error_and_quit $config_file [exec cat $stderr]
  49     }
  50
  51     set line [exec head -n1 $stdout]
  52     if {[string match {*already in use*} $line]} {
  53         error_and_quit $config_file $line
  54     }
  55
  56     # find out the pid
  57     regexp {^\[(\d+)\]} [exec head -n1 $stdout] _ pid
  58
  59     # create the client object
  60     set host $::host
  61     set port $::port
  62     if {[dict exists $config bind]} { set host [dict get $config bind] }
  63     if {[dict exists $config port]} { set port [dict get $config port] }
  64     set client [redis $host $port]
  65
  66     # select the right db when we don't have to authenticate
  67     if {![dict exists $config requirepass]} {
  68         $client select 9
  69     }
  70
  71     if {$code ne "undefined"} {
  72         # append the client to the client stack
  73         lappend ::clients $client
  74
  75         # execute provided block
  76         catch { uplevel 1 $code } err
  77
  78         # pop the client object
  79         set ::clients [lrange $::clients 0 end-1]
  80
  81         # kill server and wait for the process to be totally exited
  82         exec kill $pid
  83         while 1 {
  84             if {[catch {exec ps -p $pid | grep redis-server} result]} {
  85                 # non-zero exis status, process is gone
  86                 break;
  87             }
  88             after 10
  89         }
  90
  91         if {[string length $err] > 0} {
  92             puts "Error executing the suite, aborting..."
  93             puts $err
  94             exit 1
  95         }
  96     } else {
  97         dict set ret "config" $config_file
  98         dict set ret "pid" $pid
  99         dict set ret "stdout" $stdout
 100         dict set ret "stderr" $stderr
 101         dict set ret "client" $client
 102         set _ $ret
 103     }
 104 }
 105
 106 proc kill_server config {
 107     set pid [dict get $config pid]
 108     exec kill $pid
 109 }