A test of configurability of luacheck: config for snabbswitch

.luacheckrc

-- luacheck configuration file for snabbswitch, requires luacheck 0.7.0.
-- Run luacheck as `luacheck -q src` from the snabbswitch root folder.

-- Ignore local variables defined twice in the same scope.
redefined = false

-- Ignore unused arguments and loop variables.
unused_args = false

-- Ignore unused values coming from a call of a multi-value function together with used ones.
unused_secondaries = false

-- Define standard globals of LuaJIT 2.0.
std = "luajit"

-- Almost all files use `module`.
module = true

-- Only allow defining (setting) module members in the top level scope.
allow_defined_top = true

-- Custom globals defined in core/main.lua.
globals = {
	"config",
	"engine",
	"memory",
	"link",
	"buffer",
	"packet",
	"timer",
	"main"
}

-- Seemingly the only file which does not use `module`.
files["src/lib/lua/class.lua"].module = false

output.txt

Checking src/apps/basic/basic_apps.lua            Failure

    src/apps/basic/basic_apps.lua:3:7: unused variable app
    src/apps/basic/basic_apps.lua:147:4: setting non-module global variable noutputs
    src/apps/basic/basic_apps.lua:148:7: accessing undefined variable noutputs
    src/apps/basic/basic_apps.lua:156:27: accessing undefined variable noutputs

Checking src/apps/csv.lua                         Failure

    src/apps/csv.lua:5:7: unused variable C

Checking src/apps/fuzz/ethernet.lua               Failure

    src/apps/fuzz/ethernet.lua:9:7: unused variable C

Checking src/apps/fuzz/fuzz.lua                   Failure

    src/apps/fuzz/fuzz.lua:6:7: unused variable freelist
    src/apps/fuzz/fuzz.lua:9:7: unused variable lib
    src/apps/fuzz/fuzz.lua:11:7: unused variable datagram
    src/apps/fuzz/fuzz.lua:16:7: unused variable C
    src/apps/fuzz/fuzz.lua:22:4: setting non-module global variable generated
    src/apps/fuzz/fuzz.lua:25:19: accessing undefined variable generated
    src/apps/fuzz/fuzz.lua:26:29: accessing undefined variable generated

Checking src/apps/fuzz/generator.lua              Failure

    src/apps/fuzz/generator.lua:3:7: unused variable buffer
    src/apps/fuzz/generator.lua:4:7: unused variable freelist

Checking src/apps/fuzz/ipv4.lua                   Failure

    src/apps/fuzz/ipv4.lua:10:7: unused variable C
    src/apps/fuzz/ipv4.lua:68:10: value assigned to variable new_data is unused

Checking src/apps/fuzz/ipv6.lua                   Failure

    src/apps/fuzz/ipv6.lua:10:7: unused variable C
    src/apps/fuzz/ipv6.lua:65:10: value assigned to variable new_data is unused

Checking src/apps/fuzz/matcher.lua                Failure

    src/apps/fuzz/matcher.lua:3:7: unused variable buffer
    src/apps/fuzz/matcher.lua:4:7: unused variable freelist
    src/apps/fuzz/matcher.lua:5:7: unused variable lib
    src/apps/fuzz/matcher.lua:9:7: unused variable g_ethernet
    src/apps/fuzz/matcher.lua:10:7: unused variable g_ipv4
    src/apps/fuzz/matcher.lua:11:7: unused variable g_ipv6
    src/apps/fuzz/matcher.lua:12:7: unused variable g_udp
    src/apps/fuzz/matcher.lua:13:7: unused variable g_tcp

Checking src/apps/intel/intel10g.lua              Failure

    src/apps/intel/intel10g.lua:19:13: unused variable bitset
    src/apps/intel/intel10g.lua:318:13: value assigned to variable accessible is unused

Checking src/apps/intel/intel_app.lua             Failure

    src/apps/intel/intel_app.lua:44:30: accessing undefined variable null

Checking src/apps/intel/loadgen.lua               Failure

    src/apps/intel/loadgen.lua:7:7: unused variable app
    src/apps/intel/loadgen.lua:12:7: unused variable register
    src/apps/intel/loadgen.lua:13:16: unused variable empty

Checking src/apps/ipv6/ipv6.lua                   Failure

    src/apps/ipv6/ipv6.lua:13:7: unused variable Buzz
    src/apps/ipv6/ipv6.lua:65:4: setting non-module global variable own_mac
    src/apps/ipv6/ipv6.lua:66:4: setting non-module global variable own_ip
    src/apps/ipv6/ipv6.lua:67:25: accessing undefined variable own_mac
    src/apps/ipv6/ipv6.lua:67:43: accessing undefined variable own_ip
    src/apps/ipv6/ipv6.lua:181:10: unused variable own_ip
    src/apps/ipv6/ipv6.lua:182:10: unused variable own_mac

Checking src/apps/ipv6/nd_light.lua               Failure

    src/apps/ipv6/nd_light.lua:32:7: unused variable C
    src/apps/ipv6/nd_light.lua:33:7: unused variable app

Checking src/apps/ipv6/ns_responder.lua           Failure

    src/apps/ipv6/ns_responder.lua:9:7: unused variable app
    src/apps/ipv6/ns_responder.lua:14:7: unused variable ipv6
    src/apps/ipv6/ns_responder.lua:15:7: unused variable icmp
    src/apps/ipv6/ns_responder.lua:16:7: unused variable ns

Checking src/apps/keyed_ipv6_tunnel/tunnel.lua    Failure

    src/apps/keyed_ipv6_tunnel/tunnel.lua:10:7: unused variable bit
    src/apps/keyed_ipv6_tunnel/tunnel.lua:48:7: unused variable cookie_ctype
    src/apps/keyed_ipv6_tunnel/tunnel.lua:50:7: unused variable address_ctype
    src/apps/keyed_ipv6_tunnel/tunnel.lua:186:13: unused variable iovec

Checking src/apps/packet_filter/packet_filter.lua Failure

    src/apps/packet_filter/packet_filter.lua:400:10: unused variable packets_tx

Checking src/apps/packet_filter/packet_filter_benchmark.lua Failure

    src/apps/packet_filter/packet_filter_benchmark.lua:4:7: unused variable link

Checking src/apps/pcap/pcap.lua                   Failure

    src/apps/pcap/pcap.lua:5:7: unused variable app

Checking src/apps/rate_limiter/rate_limiter.lua   Failure

    src/apps/rate_limiter/rate_limiter.lua:107:10: unused variable bucket_size

Checking src/apps/socket/raw.lua                  Failure

    src/apps/socket/raw.lua:3:7: unused variable app

Checking src/apps/vhost/vhost.lua                 Failure

    src/apps/vhost/vhost.lua:9:7: unused variable buffer

Checking src/apps/vhost/vhost_apps.lua            Failure

    src/apps/vhost/vhost_apps.lua:8:7: unused variable lib

Checking src/apps/vhost/vhost_user.lua            Failure

    src/apps/vhost/vhost_user.lua:7:7: unused variable pcap
    src/apps/vhost/vhost_user.lua:12:7: unused variable link
    src/apps/vhost/vhost_user.lua:15:7: unused variable pci
    src/apps/vhost/vhost_user.lua:342:13: unused variable vu

Checking src/apps/vpn/vpws.lua                    Failure

    src/apps/vpn/vpws.lua:11:7: unused variable C
    src/apps/vpn/vpws.lua:12:7: unused variable lib

Checking src/core/app.lua                         Failure

    src/core/app.lua:3:7: unused variable buffer
    src/core/app.lua:4:7: unused variable packet
    src/core/app.lua:358:10: unused variable orig_link1
    src/core/app.lua:359:10: unused variable orig_link2

Checking src/core/lib.lua                         Failure

    src/core/lib.lua:244:4: setting non-module global variable result
    src/core/lib.lua:247:7: setting non-module global variable result
    src/core/lib.lua:247:16: accessing undefined variable result
    src/core/lib.lua:249:11: accessing undefined variable result

Checking src/core/link.lua                        Failure

    src/core/link.lua:3:7: unused variable debug

Checking src/core/packet.lua                      Failure

    src/core/packet.lua:235:4: setting non-module global variable o
    src/core/packet.lua:243:7: accessing undefined variable o
    src/core/packet.lua:245:24: accessing undefined variable o

Checking src/lib/hardware/pci.lua                 Failure

    src/lib/hardware/pci.lua:149:28: accessing undefined variable open_device
    src/lib/hardware/pci.lua:156:29: accessing undefined variable port
    src/lib/hardware/pci.lua:158:4: accessing undefined variable port

Checking src/lib/json.lua                         Failure

    src/lib/json.lua:13:7: unused variable math
    src/lib/json.lua:96:5: setting non-module global variable object
    src/lib/json.lua:97:24: accessing undefined variable object

Checking src/lib/nfv/config.lua                   Failure

    src/lib/nfv/config.lua:10:7: unused variable C

Checking src/lib/protocol/gre_csum.lua            Failure

    src/lib/protocol/gre_csum.lua:3:7: unused variable C

Checking src/lib/protocol/gre_csum_key.lua        Failure

    src/lib/protocol/gre_csum_key.lua:3:7: unused variable C

Checking src/lib/protocol/gre_key.lua             Failure

    src/lib/protocol/gre_key.lua:3:7: unused variable C

Checking src/lib/protocol/icmp/nd/header.lua      Failure

    src/lib/protocol/icmp/nd/header.lua:2:7: unused variable ffi

Checking src/lib/protocol/ipv4.lua                Failure

    src/lib/protocol/ipv4.lua:76:51: accessing undefined variable address

Checking src/lib/protocol/ipv6.lua                Failure

    src/lib/protocol/ipv6.lua:32:7: unused variable ipv6_addr_t
    src/lib/protocol/ipv6.lua:77:51: accessing undefined variable address

Checking src/lib/protocol/tcp.lua                 Failure

    src/lib/protocol/tcp.lua:31:10: variable o is never set

Checking src/lib/protocol/udp.lua                 Failure

    src/lib/protocol/udp.lua:27:14: accessing undefined variable tconfig
    src/lib/protocol/udp.lua:67:17: accessing undefined variable lib
    src/lib/protocol/udp.lua:71:14: accessing undefined variable lib
    src/lib/protocol/udp.lua:73:14: accessing undefined variable lib
    src/lib/protocol/udp.lua:74:28: accessing undefined variable lib

Checking src/lib/virtio/net_device.lua            Failure

    src/lib/virtio/net_device.lua:12:7: unused variable timer
    src/lib/virtio/net_device.lua:13:7: unused variable tlb

Checking src/lib/virtio/virtq.lua                 Failure

    src/lib/virtio/virtq.lua:6:7: unused variable buffer
    src/lib/virtio/virtq.lua:7:7: unused variable freelist
    src/lib/virtio/virtq.lua:8:7: unused variable lib
    src/lib/virtio/virtq.lua:9:7: unused variable memory
    src/lib/virtio/virtq.lua:13:7: unused variable rshift

Total: 102 warnings / 0 errors in 72 files