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cfjsonlog.pl
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#!/usr/bin/perl -w
# NAME: cfjsonlog.pl (was: jsonfeeds.pl)
# AIM: Fetch, show, and store a json crossfeed log in a target directory.
# Log file name will change each day, in the form - $out_dir/'flights-YYYY-MM-DD.csv'
# 2016-12-06 - Use 'eval' to skip json errors, trim some output...
# 2016-08-27 - Put the 'sleep' first, to try to overcome a breakage - a kluge! for now...
# 2016-08-21 - Minor changes, and update version
# 07/07/2016 - Moved into useful 'scripts' repo, and renamed to cfjsonlog.pl
# Added to src repo: https://github.com/geoffmcl/scripts
# The default is to fetch and write a flight record each 5 seconds *** FOREVER *** Ctrl+c to abort...
# Add option -1, to just get one, and write a compact CSV to an -o out-file
# All fetches are from a single server "http://crossfeed.freeflightsim.org/flights.json" = Thanks Pete
# 22/07/2016 - Merge one feed, -1, with repeated feeds...
# 06/07/2016 - Review
# 2015-01-09 - Initial cut
######################################
use strict;
use warnings;
use File::Basename; # split path ($name,$dir,$ext) = fileparse($file [, qr/\.[^.]*/] )
use File::Spec; # File::Spec->rel2abs($rel); # get ABSOLUTE from REALTIVE get_full_path
use Time::HiRes qw( usleep gettimeofday tv_interval ); # add some precise timing...
use LWP::Simple;
use JSON;
use Data::Dumper;
use Cwd;
my $os = $^O;
my $PATH_SEP = '/';
$PATH_SEP = "\\" if ($os =~ /win/i);
my ($pgmname,$perl_dir) = fileparse($0);
my $temp_dir = $perl_dir . "temp";
unshift(@INC, $perl_dir);
require 'lib_utils.pl' or die "Unable to load 'lib_utils.pl' Check paths in \@INC...\n";
require 'fg_wsg84.pl' or die "Unable to load fg_wsg84.pl ...\n";
# log file stuff
our ($LF);
my $outfile = $temp_dir."/temp.$pgmname.txt";
$outfile = path_u2d($outfile) if ($os =~ /win/i);
open_log2($outfile); # NEW service, to rename previous log to '.1', '.2', etc - ie keep PREVIOUS
# user variables
my $VERS = "0.1.0 2016-12-06";
##my $VERS = "0.0.10 2016-08-27";
##my $VERS = "0.0.9 2016-08-21";
##my $VERS = "0.0.8 2016-07-22";
##my $VERS = "0.0.7 2016-07-07";
##my $VERS = "0.0.6 2016-07-06";
##my $VERS = "0.0.5 2015-01-09";
my $load_log = 0;
my $in_file = '';
my $verbosity = 0;
my $out_file = '';
my $out_dir = $temp_dir.$PATH_SEP."temp-flights";
my $only_one_feed = 0;
my $add_csv_header = 1;
#############################################################
# crossfeed json feed - never fetch faster than 1 Hz!
my $feed1 = "http://crossfeed.freeflightsim.org/flights.json";
#############################################################
# ### DEBUG ###
my $debug_on = 0;
my $def_file = 'def_file';
### program variables
my @warnings = ();
my $cwd = cwd();
my $MPS2KT = 1.94384; # meters per second to knots
my $SG_EPSILON = 0.000001;
my $last_ymd = '';
sub VERB1() { return $verbosity >= 1; }
sub VERB2() { return $verbosity >= 2; }
sub VERB5() { return $verbosity >= 5; }
sub VERB9() { return $verbosity >= 9; }
sub show_warnings($) {
my ($val) = @_;
if (@warnings) {
prt( "\nGot ".scalar @warnings." WARNINGS...\n" );
foreach my $itm (@warnings) {
prt("$itm\n");
}
prt("\n");
} else {
prt( "\nNo warnings issued.\n\n" ) if (VERB9());
}
}
sub pgm_exit($$) {
my ($val,$msg) = @_;
if (length($msg)) {
$msg .= "\n" if (!($msg =~ /\n$/));
prt($msg);
}
show_warnings($val);
close_log($outfile,$load_log);
exit($val);
}
sub prtw($) {
my ($tx) = shift;
$tx =~ s/\n$//;
prt("$tx\n");
push(@warnings,$tx);
}
# get_time_stg($elap) - make sense of an elapsed time seconds
sub get_time_stg($) {
my $elap = shift;
my $negative = 0;
my $units = '';
if ($elap < 0) {
$negative = 1;
$elap = -$elap;
}
if ( !($elap > 0.0) ) {
return "0.0 s";
}
if ($elap < 1e-21) {
#// yocto - 10^-24
$elap *= 1e+21;
$units = "ys";
} elsif ($elap < 1e-18) {
#// zepto - 10^-21
$elap *= 1e+18;
$units = "zs";
} elsif ($elap < 1e-15) {
#// atto - 10^-18
$elap *= 1e+15;
$units = "as";
} elsif ($elap < 1e-12) {
#// femto - 10^-15
$elap *= 1e+12;
$units = "fs";
} elsif ($elap < 1e-9) {
#// pico - 10^-12
$elap *= 1e+9;
$units = "ps";
} elsif ($elap < 1e-6) {
#// nanosecond - one thousand millionth (10?9) of a second
$elap *= 1e+6;
$units = "ns";
} elsif ($elap < 1e-3) {
#// microsecond - one millionth (10?6) of a second
$elap *= 1e+3;
$units = "us";
} elsif ($elap < 1.0) {
#// millisecond
$elap *= 1000.0;
$elap = int(($elap + 0.5) * 100) / 100;
$units = "ms";
} elsif ($elap < 60.0) {
$elap = int(($elap + 0.5) * 100) / 100;
$units = "s";
} else {
my $secs = int($elap + 0.5);
my $mins = int($secs / 60);
$secs = ($secs % 60);
if ($mins >= 60) {
my $hrs = int($mins / 60);
$mins = $mins % 60;
if ($hrs >= 24) {
my $days = int($hrs / 24);
$hrs = $hrs % 24;
return sprintf("%d days %2d:%02d:%02d hh:mm:ss", $days, $hrs, $mins, $secs);
} else {
return sprintf("%2d:%02d:%02d hh:mm:ss", $hrs, $mins, $secs);
}
} else {
return sprintf("%2d:%02d mm:ss", $mins, $secs);
}
}
my $res = '';
if ($negative) {
$res = '-';
}
$res .= "$elap $units";
return $res;
}
sub process_in_file($) {
my ($inf) = @_;
if (! open INF, "<$inf") {
pgm_exit(1,"ERROR: Unable to open file [$inf]\n");
}
my @lines = <INF>;
close INF;
my $lncnt = scalar @lines;
prt("Processing $lncnt lines, from [$inf]...\n");
my ($line,$inc,$lnn);
$lnn = 0;
foreach $line (@lines) {
chomp $line;
$lnn++;
if ($line =~ /\s*#\s*include\s+(.+)$/) {
$inc = $1;
prt("$lnn: $inc\n");
}
}
}
sub fetch_url($) { # see gettaf01.pl
my ($url) = shift;
prt( "Fetching: $url\n" ) if (VERB9());
my $txt = get($url);
my ($len);
if ($txt && length($txt)) {
$len = length($txt);
if (VERB9()) {
prt("Got $len chars...\n");
prt("$txt\n");
}
} else {
prt( "No text available from $url!\n" ) if (VERB5());
}
return $txt;
}
my $max_model = 14; # beech99-model
# "Aircraft/777/Models/777-200ER.xml
sub get_model($) {
my $mod = shift;
my @arr = split(/\//,$mod);
$mod = $arr[-1];
$mod =~ s/\.xml$//;
$mod =~ s/-model$//;
return $mod;
}
sub get_ll_double($) {
my $deg = shift;
my $dbl = sprintf("%12.6f",$deg);
return $dbl;
}
sub get_alt_stg($) {
my $alt = shift;
if ($alt > 10000) {
$alt = 'FL'.int($alt / 100);
#$alt = sprintf("%6d",$alt);
} else {
$alt = sprintf("%8d",$alt);
}
return $alt;
}
sub get_decimal_stg($$$) {
my ($dec,$il,$dl) = @_;
my (@arr);
if ($dec =~ /\./) {
@arr = split(/\./,$dec);
if (scalar @arr == 2) {
$arr[0] = " ".$arr[0] while (length($arr[0]) < $il);
$dec = $arr[0];
if ($dl > 0) {
$dec .= ".";
$arr[1] = substr($arr[1],0,$dl) if (length($arr[1]) > $dl);
$dec .= $arr[1];
}
}
} else {
$dec = " $dec" while (length($dec) < $il);
if ($dl) {
$dec .= ".";
while ($dl--) {
$dec .= "0";
}
}
}
return $dec;
}
sub get_sg_dist_stg($) {
my ($sg_dist) = @_;
my $sg_km = $sg_dist / 1000;
my $sg_im = int($sg_dist);
my $sg_ikm = int($sg_km + 0.5);
my $dlen = 5;
# if (abs($sg_pdist) < $CP_EPSILON)
my $sg_dist_stg = "";
if (abs($sg_km) > $SG_EPSILON) { # = 0.0000001; # EQUALS SG_EPSILON 20101121
if ($sg_ikm && ($sg_km >= 1)) {
$sg_km = int(($sg_km * 10) + 0.05) / 10;
#$sg_dist_stg .= get_decimal_stg($sg_km,5,1)." km";
$sg_dist_stg .= get_decimal_stg($sg_km,($dlen - 2),1)." km";
} else {
#$sg_dist_stg .= "$sg_im m, <1km";
#$sg_dist_stg .= get_decimal_stg($sg_im,7,0)." m.";
$sg_dist_stg .= get_decimal_stg($sg_im,$dlen,0)." m.";
}
} else {
#$sg_dist_stg .= "0 m";
#$sg_dist_stg .= get_decimal_stg('0',7,0)." m.";
$sg_dist_stg .= get_decimal_stg('0',$dlen,0)." m.";
}
return $sg_dist_stg;
}
sub display_flight($$$$$$$$$) {
my ($callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm,$type) = @_;
$callsign .= ' ' while (length($callsign) < 8);
$lat = get_ll_double($lat);
$lon = get_ll_double($lon);
$alt_ft = get_alt_stg($alt_ft);
$alt_ft = ' '.$alt_ft while (length($alt_ft) < 8);
$model = ' '.$model while (length($model) < $max_model);
$spd_kts = ' '.$spd_kts while (length($spd_kts) < 7);
$hdg = ' '.$hdg while (length($hdg) < 4);
$dist_nm = ' '.$dist_nm while (length($dist_nm) < 7);
my $line = "$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm - $type\n";
prt($line);
#return $line;
}
my $iocnt = 0;
my $csv_headers = "fid,callsign,lat,lon,alt_ft,model,spd_kts,hdg,dist_nm,update,tot_secs\n";
sub record_flight($$$$$$$$$$$) {
my ($fid,$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm,$tot_secs,$upd1) = @_;
my $epoch = time();
my $line = "$fid,$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm,$upd1,$tot_secs\n";
my $ymd = get_YYYYMMDD($epoch);
$ymd =~ s/\//-/g; # conver to a path compatible name
my $file = $out_dir.$PATH_SEP."flights-$ymd.csv";
if ($only_one_feed) {
if (length($out_file) == 0) {
pgm_exit(1,"Error: Requested one (-1), but no outfile given...\n");
}
$file = $out_file;
if (-f $file) {
prt("Appended to file $file...\n") if ($iocnt == 0);
append2file($line,$file);
$iocnt++;
} else {
$last_ymd = $ymd;
$line = $csv_headers.$line if ($add_csv_header);
write2file($line,$file);
prt("Created new file $file...\n");
$iocnt = 1;
}
} elsif (length($out_dir) && (-d $out_dir)) {
if (-f $file) {
$last_ymd = $ymd if (length($last_ymd) == 0);
if ($ymd eq $last_ymd) {
prt("Appended to file $file...\n") if ($iocnt == 0);
append2file($line,$file);
$iocnt++;
} else {
$last_ymd = $ymd;
$line = $csv_headers.$line if ($add_csv_header);
write2file($line,$file);
prt("Created new file $file...\n");
$iocnt = 1;
}
} else {
$last_ymd = $ymd;
$line = $csv_headers.$line if ($add_csv_header);
write2file($line,$file);
prt("Created new file $file...\n");
$iocnt = 1;
}
} elsif ($iocnt == 0) {
if (length($out_dir)) {
$line = File::Spec->rel2abs($out_dir);
my ($n,$d) = fileparse($line);
prt("\nInfo: Can find dir '$d', but missing '$n'!\n") if (-d $d);
pgm_exit(1,"ERROR: Can NOT 'stat' output dir '$line'!\n".
"This directory MUST exist. Create and re-run...\n\n");
} else {
pgm_exit(1,"\nERROR: No valid output directory given!\n\n");
}
$iocnt++;
}
}
# crossfeed
# {"success":true,"source":"cf-client","last_updated":"2015-01-22 17:35:42","flights":[
# {"fid":1421695466000,"callsign":"Charlie","lat":45.360490,"lon":5.335270,"alt_ft":1288,"model":"Aircraft/777/Models/777-200ER.xml","spd_kts":0,"hdg":324,"dist_nm":379},
# {"fid":1421826354000,"callsign":"saphir","lat":51.242089,"lon":-0.834174,"alt_ft":3113,"model":"Aircraft/777/Models/777-200LR.xml","spd_kts":187,"hdg":146,"dist_nm":16384},
# fid callsign lat lon alt_ft model spd_kts hdg dist_nm
# php feed
# {"pilots":[
# {"callsign":"Charlie","aircraft":"777-200ER","latitude":"45.360490","longitude":"5.335270","altitude":"1287.707060","heading":323.8147125058},
# {"callsign":"saphir","aircraft":"777-200LR","latitude":"51.240209","longitude":"-0.832257","altitude":"3109.778402","heading":145.73179151024},
# {"callsign":"EGXU_TW","aircraft":"OpenRadar","latitude":"54.045074","longitude":"-1.250728","altitude":"53.001620","heading":0},
# callsign aircraft latitude longitude altitude heading
sub repeat_feeds() {
my $repeat = 1;
my $secs = 5;
my $header = '';
my $upd1 = "Unknown";
my ($fid,$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm);
my ($ra1,$cnt1,$i,$rh2,$line,$msg,$show,$rh3);
my ($lat2,$lon2,$alt_ft2,$model2,$spd_kts2,$hdg2,$dist_nm2,$type);
my ($res,$az1,$az2,$dist,$mps,$tsecs);
my ($tb,$tn,$ta,$elap,$tm,$lelap,$telap); # start some precise script timings
my $min_mps = 5;
my %hash = ();
$callsign = 'callsign';
$lat = 'latitude';
$lon = 'longitude';
$alt_ft = 'altitude';
$model = 'model';
$spd_kts = 'spd kts';
$hdg = 'hdg';
$dist_nm = 'dist nm';
# display header
$callsign .= ' ' while (length($callsign) < 8);
$lat = ' '.$lat while (length($lat) < 12);
$lon = ' '.$lon while (length($lon) < 12);
$alt_ft = ' '.$alt_ft while (length($alt_ft) < 8);
$model = ' '.$model while (length($model) < $max_model);
$spd_kts = ' '.$spd_kts while (length($spd_kts) < 7);
$hdg = ' '.$hdg while (length($hdg) < 4);
$dist_nm = ' '.$dist_nm while (length($dist_nm) < 7);
$msg = "$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm\n";
$header = $msg;
my $tot_secs = 0;
my $tot_sleep = 0;
my $sleep_cnt = 0;
my $error_cnt = 0;
my $sleep_msg = "N/A";
my ($new_cnt,$left_cnt,$curr_cnt,$stats);
$stats = 'none';
$tb = [gettimeofday];
while ($repeat) {
$new_cnt = 0;
$left_cnt = 0;
$curr_cnt = 0;
$tn = [gettimeofday];
if ($only_one_feed) {
prt("Only one feed requested... and exit...\n");
$repeat = 0;
} else {
$sleep_cnt++;
$elap = tv_interval( $tb, $tn );
$tm = get_time_stg($elap);
#prt("Cycles: $sleep_cnt: rt $tm: Sleep for $secs second... $sleep_msg\n");
prt("Cycles: $sleep_cnt: rt $tm: Sleep $secs... $stats $sleep_msg\n");
sleep $secs;
$ta = [gettimeofday];
$lelap = tv_interval( $tn, $ta );
$tot_sleep += $lelap;
my $cslp = get_time_stg($lelap);
$telap = tv_interval( $tb, $ta );
my $tslp = get_time_stg($telap);
my $tuse = get_time_stg($telap - $tot_sleep);
# $sleep_msg = " last sleep $cslp, tot $tslp, use $tuse";
$sleep_msg = " use $tuse, e=$error_cnt";
}
my $txt1 = fetch_url($feed1); # "http://crossfeed.freeflightsim.org/flights.json";
my $json = JSON->new->allow_nonref;
my ($rh1);
eval { $rh1 = $json->decode( $txt1 ); };
if ($@) {
# could show the rejected json feed, but maybe just error text...
$txt1 = trim_all($@);
$error_cnt++;
prt("$error_cnt: Error JSON: $txt1\n");
next;
}
###prt(Dumper($rh1));
my $upd1 = "Unknown";
my ($fid,$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm);
my ($ra1,$cnt1,$i,$rh2,$line,$msg);
if (defined ${$rh1}{last_updated}) {
$upd1 = ${$rh1}{last_updated};
}
if (defined ${$rh1}{flights}) {
$ra1 = ${$rh1}{flights};
$cnt1 = scalar @{$ra1};
# get all current FIDS in current hash
my @fids = keys %hash;
my $cnt2 = scalar @fids; # get COUNT in current db
my %hfids = ();
foreach $fid (@fids) {
$hfids{$fid} = 1;
}
# pre-process current cnt1, for missing FIDs
for ($i = 0; $i < $cnt1; $i++) {
$rh2 = ${$ra1}[$i]; # extract the hash
$fid = ${$rh2}{fid}; # get FID
if (defined $hfids{$fid}) {
delete $hfids{$fid}; # REMOVE from list
}
}
# any remaining in FIDS need to DIE, have LEFT, no more
@fids = keys %hfids;
if (@fids) {
foreach $fid (@fids) {
$rh3 = $hash{$fid};
$callsign = ${$rh3}[0];
$lat = ${$rh3}[1];
$lon = ${$rh3}[2];
$alt_ft = ${$rh3}[3];
$model = ${$rh3}[4];
$spd_kts = ${$rh3}[5];
$hdg = ${$rh3}[6];
$dist_nm = ${$rh3}[7];
$dist = ${$rh3}[8];
$tsecs = ${$rh3}[9];
my $active = secs_HHMMSS($tsecs);
$type = "LEFT ".get_sg_dist_stg($dist).", after $active";
display_flight($callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm,$type) if (VERB5());
delete $hash{$fid}; # remove it
$left_cnt++;
}
}
@fids = keys %hash;
my $cnt3 = scalar @fids;
my $ltime = lu_get_YYYYMMDD_hhmmss(time());
prt("$ltime: Updated: $upd1, flights $cnt1... db $cnt2/$cnt3\n");
# now process THIS set of json flights
for ($i = 0; $i < $cnt1; $i++) {
$rh2 = ${$ra1}[$i]; # extract the hash
$fid = ${$rh2}{fid};
$callsign = ${$rh2}{callsign};
$lat = ${$rh2}{lat};
$lon = ${$rh2}{lon};
$alt_ft = ${$rh2}{alt_ft};
$model = get_model(${$rh2}{model});
$spd_kts = ${$rh2}{spd_kts};
$hdg = ${$rh2}{hdg};
$dist_nm = ${$rh2}{dist_nm};
# write record to file...
record_flight($fid,$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm,$tot_secs,$upd1);
###prt("$fid,$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm\n");
if (defined $hash{$fid}) {
$show = 0;
$rh3 = $hash{$fid};
$lat2 = ${$rh3}[1];
$lon2 = ${$rh3}[2];
$type = 'SAME';
if (($lat != $lat2) || ($lon != $lon2)) {
$res = fg_geo_inverse_wgs_84($lat2,$lon2,$lat,$lon,\$az1,\$az2,\$dist);
$mps = $dist / $secs;
if ($mps > $min_mps) {
$type = "moved ".get_sg_dist_stg($dist);
$show = 1;
$curr_cnt++;
${$rh3}[1] = $lat;
${$rh3}[2] = $lon;
${$rh3}[8] += $dist;
}
}
${$rh3}[9] += $secs; # accumulate rough seconds - better based on update string
} else {
# 0 1 2 3 4 5 6 7 8 9 10
$hash{$fid} = [$callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm,0,0,$upd1];
$show = 1;
$new_cnt++;
$type = 'NEW';
}
if ($show) {
display_flight($callsign,$lat,$lon,$alt_ft,$model,$spd_kts,$hdg,$dist_nm,$type) if (VERB5());
#$msg .= $line;
}
}
$stats = "L=$left_cnt, N=$new_cnt, M=$curr_cnt";
#if (length($out_file)) {
# write2file($msg,$out_file);
# prt("JSON crossfeed flight list written to $out_file\n");
#}
} else {
prt("'flights' is NOT defined in hash 1!\n");
}
} # while ($repeat)
}
#########################################
### MAIN ###
parse_args(@ARGV);
repeat_feeds();
pgm_exit(0,"");
########################################
sub need_arg {
my ($arg,@av) = @_;
pgm_exit(1,"ERROR: [$arg] must have a following argument!\n") if (!@av);
}
sub parse_args {
my (@av) = @_;
my ($arg,$sarg);
my $verb = VERB2();
while (@av) {
$arg = $av[0];
if ($arg =~ /^-/) {
$sarg = substr($arg,1);
$sarg = substr($sarg,1) while ($sarg =~ /^-/);
if (($sarg =~ /^h/i)||($sarg eq '?')) {
give_help();
pgm_exit(0,"Help exit(0)");
} elsif ($sarg =~ /^v/) {
if ($sarg =~ /^v.*(\d+)$/) {
$verbosity = $1;
} else {
while ($sarg =~ /^v/) {
$verbosity++;
$sarg = substr($sarg,1);
}
}
$verb = VERB2();
prt("Verbosity = $verbosity\n") if ($verb);
} elsif ($sarg =~ /^l/) {
if ($sarg =~ /^ll/) {
$load_log = 2;
} else {
$load_log = 1;
}
prt("Set to load log at end. ($load_log)\n") if ($verb);
} elsif ($sarg =~ /^d/) {
need_arg(@av);
shift @av;
$sarg = $av[0];
$out_dir = $sarg;
prt("Set out DIR to [$out_dir].\n") if ($verb);
} elsif ($sarg =~ /^o/) {
need_arg(@av);
shift @av;
$sarg = $av[0];
$out_file = $sarg;
prt("Set out file to [$out_file].\n") if ($verb);
} elsif ($sarg =~ /^1/) {
$only_one_feed = 1;
prt("Only show one feed and exit\n") if ($verb);
} elsif ($sarg =~ /^n/) {
$add_csv_header = 0;
prt("Disabled adding csv header to new files.\n") if ($verb);
} else {
pgm_exit(1,"ERROR: Invalid argument [$arg]! Try -?\n");
}
} else {
$in_file = $arg;
prt("Set input to [$in_file]\n") if ($verb);
}
shift @av;
}
# if ($debug_on) {
# prtw("WARNING: DEBUG is ON!\n");
# if (length($in_file) == 0) {
# $in_file = $def_file;
# prt("Set DEFAULT input to [$in_file]\n");
# }
# }
# if (length($in_file) == 0) {
# pgm_exit(1,"ERROR: No input files found in command!\n");
# }
# if (! -f $in_file) {
# pgm_exit(1,"ERROR: Unable to find in file [$in_file]! Check name, location...\n");
# }
}
sub give_help {
prt("\n");
prt("$pgmname: version $VERS\n");
prt("Usage: $pgmname [options] in-file\n");
prt("Options:\n");
prt(" --help (-h or -?) = This help, and exit 0.\n");
prt(" --verb[n] (-v) = Bump [or set] verbosity. def=$verbosity\n");
prt(" --dir <dir> (-d) = Set output DIR. (def=$out_dir)\n");
prt(" --no-header (-n) = Disable adding csv header to each new file. (def=$add_csv_header)\n");
prt("Single shot mode\n");
prt(" --1 (-1) = Only fetch one feed, and exit. (def=$only_one_feed)\n");
prt(" --out <file> (-o) = Write output to this file. (def=$out_file)\n");
prt(" --load (-l) = Load LOG at end. ($outfile)\n");
prt("\n");
}
# eof - cfjsonlog.pl