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import os
import sys
import shutil
# default: 'type': uint64
# ptype: "'counter' (vs gauge')
srcdir = '.'
builddir = '.'
if len(sys.argv) == 3:
print("metrics.py: using srcdir and builddir from arguments")
srcdir = sys.argv[1]
builddir = sys.argv[2]
print("Generating metrics related files")
print("metrics.py cwd: " + os.getcwd())
print("metrics.py srcdir: " + srcdir + " = " + os.path.realpath(srcdir))
print("metrics.py builddir: " + builddir + " = " + os.path.realpath(builddir))
def dedashForSNMP(name):
cap = False
ret = ''
for ch in name:
if ch == '-':
cap = True
elif cap:
ret += ch.upper()
cap = False
else:
ret += ch
ret = ret.replace('Nsec', 'NSEC')
return ret
# read table
with open(srcdir + '/metrics_table.py', mode='r', encoding="utf-8") as file:
table = eval(file.read())
#
# We create various files in the srcdir but copy them into the builddir if needed to satisfy meson
# FIXME: only generate in builddir once autotools have been dropped
#
with open(srcdir + '/rec-oids-gen.h', 'w', encoding='utf-8') as file:
file.write('// THIS IS A GENERATED FILE. DO NOT EDIT. SOURCE metrics.py AND metrics_table.py\n')
for entry in table:
if 'snmp' not in entry:
continue
if 'ifdef' in entry:
ifdef = entry['ifdef']
file.write(f'#ifdef {ifdef}\n')
name = dedashForSNMP(entry['name'])
snmp = entry['snmp']
file.write(f'static const oid10 {name}OID = {{RECURSOR_STATS_OID, {snmp}}};\n')
if 'ifdef' in entry:
file.write(f'#endif\n')
if srcdir != builddir:
shutil.copy(srcdir + '/rec-oids-gen.h', builddir)
with open(srcdir + '/rec-snmp-gen.h', 'w', encoding='utf-8') as file:
file.write('// THIS IS A GENERATED FILE. DO NOT EDIT. SOURCE metrics.py AND metrics_table.py\n')
for entry in table:
if 'snmp' not in entry:
continue
name = entry['name']
dname = dedashForSNMP(name)
if 'ifdef' in entry:
ifdef = entry['ifdef']
file.write(f'#ifdef {ifdef}\n')
file.write(f'registerCounter64Stat("{name}", {dname}OID);\n')
if 'ifdef' in entry:
file.write(f'#endif\n')
if srcdir != builddir:
shutil.copy(srcdir + '/rec-snmp-gen.h', builddir)
with open(srcdir + '/rec-prometheus-gen.h', 'w', encoding='utf-8') as file:
file.write('// THIS IS A GENERATED FILE. DO NOT EDIT. SOURCE metrics.py AND metrics_table.py\n')
for entry in table:
name = entry['name']
if 'pname' in entry:
name = entry['pname']
desc = ''
desc = entry['desc']
if 'pdesc' in entry:
desc = entry['pdesc']
if desc == '':
continue
ptype = 'counter'
if 'ptype' in entry:
ptype = entry['ptype']
file.write(f'{{"{name}", MetricDefinition(PrometheusMetricType::{ptype}, "{desc}")}},\n')
if srcdir != builddir:
shutil.copy(srcdir + '/rec-prometheus-gen.h', builddir)
with open(srcdir + '/rec-metrics-gen.h', 'w', encoding='utf-8') as file:
file.write('// THIS IS A GENERATED FILE. DO NOT EDIT. SOURCE metrics.py AND metrics_table.py\n')
for entry in table:
name = entry['name']
if 'lambda' not in entry:
continue
lam = entry['lambda']
if 'ifdef' in entry:
ifdef = entry['ifdef']
file.write(f'#ifdef {ifdef}\n')
if 'if' in entry:
iff = entry['if']
file.write(f'if ({iff}) {{\n')
file.write(f'addGetStat("{name}", {lam});\n')
if 'if' in entry:
file.write(f'}}\n')
if 'ifdef' in entry:
file.write(f'#endif\n')
if srcdir != builddir:
shutil.copy(srcdir + '/rec-metrics-gen.h', builddir)
if os.path.isdir(srcdir + '/docs'):
with open(srcdir + '/docs/rec-metrics-gen.rst', 'w', encoding='utf-8') as file:
file.write('.. THIS IS A GENERATED FILE. DO NOT EDIT. SOURCE metrics.py AND metrics_table.py\n')
sortedtable = sorted(table, key = lambda value: value['name'])
file.write('.. csv-table:: **Metrics**\n')
file.write(' :header: "rec_control name", "Description", "SNMP Object and OID"\n')
file.write(' :widths: 20, 50, 20\n\n')
for entry in sortedtable:
name = entry['name']
desc = entry['desc']
if not desc.endswith('.'):
desc += '.'
if 'longdesc' in entry:
desc = desc + ' ' + entry['longdesc'].strip()
if not desc.endswith('.'):
desc += '.'
file.write(f' "**{name}**", ')
file.write(f'"{desc}"')
if 'snmp' in entry:
snmp = entry['snmp']
snmpname = dedashForSNMP(name)
if 'snmpname' in entry:
name = entry['snmpname']
file.write(f', "{snmpname} ({snmp})"')
else:
file.write(',')
file.write('\n')
str1 = ''
for entry in table:
if 'snmp' not in entry:
continue
name = dedashForSNMP(entry['name'])
if 'snmpname' in entry:
name = entry['snmpname']
snmp = entry['snmp']
desc = entry['desc']
type = 'Counter64'
if 'ptype' in entry and entry['ptype'] == 'gauge':
type = 'CounterBasedGauge64'
str1 += f'''
{name} OBJECT-TYPE
SYNTAX {type}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"{desc}"
::= {{ stats {snmp} }}
'''
str2 = ' trapReason'
for entry in table:
if 'snmp' not in entry:
continue
name = dedashForSNMP(entry['name'])
if 'snmpname' in entry:
name = entry['snmpname']
str2 += f',\n {name}'
with open(srcdir + '/RECURSOR-MIB.in', mode='r', encoding='utf-8') as file:
text = file.read()
text = text.replace('REPL_OBJECTS1', str1)
text = text.replace('REPL_OBJECTS2', str2)
with open(srcdir + '/RECURSOR-MIB.txt', 'w', encoding='utf-8') as file2:
file2.write(text)
if srcdir != builddir:
shutil.copy(srcdir + '/RECURSOR-MIB.txt', builddir)
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