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bees: configurable log verbosity

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Log messages were already labelled with log levels, but there was no
way to filter by log level at run time.

Implement the filter inside the bees process so it can skip evaluation
of the BEESLOG* arguments if the log messages would not be emitted.

Fixes: https://github.com/Zygo/bees/issues/67

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell
2018-07-08 16:47:38 -04:00
parent b22db12390
commit 041ad717a5
3 changed files with 42 additions and 25 deletions
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52
src/bees.cc
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@ -30,6 +30,8 @@
using namespace crucible;
using namespace std;
int bees_log_level = 8;
int
do_cmd_help(char *argv[])
{
@ -48,6 +50,7 @@ do_cmd_help(char *argv[])
"\t-T, --no-timestamps\tOmit timestamps in log output\n"
"\t-p, --absolute-paths\tShow absolute paths (default)\n"
"\t-P, --strip-paths\tStrip $CWD from beginning of all paths in the log\n"
"\t-v, --verbose\tSet maximum log level (0..8, default 8)\n"
"\n"
"Optional environment variables:\n"
"\tBEESHOME\tPath to hash table and configuration files\n"
@ -655,43 +658,54 @@ bees_main(int argc, char *argv[])
while (1) {
int option_index = 0;
static struct option long_options[] = {
{ "thread-count", required_argument, NULL, 'c' },
{ "thread-factor", required_argument, NULL, 'C' },
{ "scan-mode", required_argument, NULL, 'm' },
{ "timestamps", no_argument, NULL, 't' },
{ "no-timestamps", no_argument, NULL, 'T' },
{ "absolute-paths", no_argument, NULL, 'p' },
{ "strip-paths", no_argument, NULL, 'P' },
{ "help", no_argument, NULL, 'h' }
{ "no-timestamps", no_argument, NULL, 'T' },
{ "thread-count", required_argument, NULL, 'c' },
{ "help", no_argument, NULL, 'h' },
{ "scan-mode", required_argument, NULL, 'm' },
{ "absolute-paths", no_argument, NULL, 'p' },
{ "timestamps", no_argument, NULL, 't' },
{ "verbose", required_argument, NULL, 'v' },
};
c = getopt_long(argc, argv, "c:C:m:TtPph", long_options, &option_index);
c = getopt_long(argc, argv, "C:PTc:hm:ptv:", long_options, &option_index);
if (-1 == c) {
break;
}
switch (c) {
case 'c':
thread_count = stoul(optarg);
break;
case 'C':
thread_factor = stod(optarg);
break;
case 'm':
BeesRoots::set_scan_mode(static_cast<BeesRoots::ScanMode>(stoul(optarg)));
break;
case 'T':
chatter_prefix_timestamp = false;
break;
case 't':
chatter_prefix_timestamp = true;
break;
case 'P':
crucible::set_relative_path(cwd);
break;
case 'T':
chatter_prefix_timestamp = false;
break;
case 'c':
thread_count = stoul(optarg);
break;
case 'm':
BeesRoots::set_scan_mode(static_cast<BeesRoots::ScanMode>(stoul(optarg)));
break;
case 'p':
crucible::set_relative_path("");
break;
case 't':
chatter_prefix_timestamp = true;
break;
case 'v':
{
int new_log_level = stoul(optarg);
THROW_CHECK1(out_of_range, new_log_level, new_log_level >= 0 || new_log_level <= 8);
bees_log_level = new_log_level;
BEESLOGNOTICE("log level set to " << bees_log_level);
}
break;
case 'h':
do_cmd_help(argv); // fallthrough
default: