feat: 🎸 upgrade dependencies

.golangci.yml

@@ -0,0 +1,71 @@
+# options for analysis running
+run:
+  # default concurrency is a available CPU number
+  concurrency: 4
+
+  # timeout for analysis, e.g. 30s, 5m, default is 1m
+  deadline: 2m
+
+  # which files to skip: they will be analyzed, but issues from them
+  # won't be reported. Default value is empty list, but there is
+  # no need to include all autogenerated files, we confidently recognize
+  # autogenerated files. If it's not please let us know.
+  skip-files:
+    - ".*generated.*"
+    - ".*_test.go"
+
+# all available settings of specific linters
+linters-settings:
+  gocyclo:
+    min-complexity: 20
+  lll:
+    line-length: 200
+
+linters:
+  enable:
+    - deadcode
+    - errcheck
+    - govet
+    - ineffassign
+    - staticcheck
+    - structcheck
+    - unused
+    - varcheck
+    - bodyclose
+    - depguard
+    - dupl
+    - gocyclo
+    - goimports
+    - golint
+    - gosec
+    - misspell
+    - stylecheck
+    - unconvert
+  disable-all: true
+  fast: true
+
+
+issues:
+  exclude-use-default: false
+
+  # List of regexps of issue texts to exclude, empty list by default.
+  # But independently from this option we use default exclude patterns,
+  # it can be disabled by `exclude-use-default: false`. To list all
+  # excluded by default patterns execute `golangci-lint run --help`
+  exclude:
+    # errcheck defer Close
+    - error return value not checked \(defer .*\.Close()\)
+    # errcheck: Almost all programs ignore errors on these functions and in most cases it's ok
+    - Error return value of .((os\.)?std(out|err)\..*|.*Close|.*Flush|os\.Remove(All)?|.*printf?|os\.(Un)?Setenv). is not checked
+    # gosec: Duplicated errcheck checks
+    - G104
+    # gosec: Expect file permissions to be 0600 or less
+    - G302
+    # gosec: Use of weak random number generators
+    - G404
+    # gosec: Use of unsafe calls should be audited
+    - G103
+    # errcheck defer Close
+    - error return value not checked \(defer .*\.Close()\)
+    # gosec: False positive is triggered by 'src, err := ioutil.ReadFile(filename)'
+    - Potential file inclusion via variable

Makefile

@@ -16,7 +16,7 @@ endif
 default: build
 
 build: clean test
-	go build
+	go build -ldflags "-X main.VersionString=$(VERSION)"
 
 release: check-env-release
 	mkdir -p $(BUILDDIR)

go.mod

@@ -1,14 +1,9 @@
 module github.com/ameshkov/dnslookup
 
-go 1.12
+go 1.14
 
 require (
-	github.com/AdguardTeam/dnsproxy v0.19.5
+	github.com/AdguardTeam/dnsproxy v0.25.0
 	github.com/ameshkov/dnsstamps v1.0.1
-	github.com/kr/pretty v0.1.0 // indirect
-	github.com/miekg/dns v1.1.22
-	golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 // indirect
-	golang.org/x/net v0.0.0-20191011234655-491137f69257 // indirect
-	golang.org/x/sys v0.0.0-20191010194322-b09406accb47 // indirect
-	gopkg.in/yaml.v2 v2.2.4 // indirect
+	github.com/miekg/dns v1.1.29
 )

go.sum

@@ -1,107 +1,75 @@
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-github.com/AdguardTeam/urlfilter v0.6.0/go.mod h1:y+XdxBdbRG9v7pfjznlvv4Ufi2HTG8D0YMqR22OVy0Y=
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 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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 golang.org/x/sys v0.0.0-20190924154521-2837fb4f24fe/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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-golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
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-gopkg.in/yaml.v2 v2.2.3/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
-gopkg.in/yaml.v2 v2.2.4 h1:/eiJrUcujPVeJ3xlSWaiNi3uSVmDGBK1pDHUHAnao1I=
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-rsc.io/pdf v0.1.1/go.mod h1:n8OzWcQ6Sp37PL01nO98y4iUCRdTGarVfzxY20ICaU4=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
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main.go

@@ -10,24 +10,26 @@ import (
 	"strings"
 	"time"
 
-	"github.com/ameshkov/dnsstamps"
-
 	"github.com/AdguardTeam/dnsproxy/upstream"
+	"github.com/ameshkov/dnsstamps"
 	"github.com/miekg/dns"
 )
 
-// See the makefile
+// VersionString -- see the makefile
 var VersionString = "undefined"
 
 func main() {
-	enableTLS13()
-
-	machineReadable := (os.Getenv("JSON") == "1")
+	machineReadable := os.Getenv("JSON") == "1"
 
 	if !machineReadable {
 		os.Stdout.WriteString(fmt.Sprintf("dnslookup %s\n", VersionString))
 	}
 
+	if len(os.Args) == 1 && os.Args[0] == "-h" {
+		usage()
+		os.Exit(1)
+	}
+
 	if len(os.Args) != 3 && len(os.Args) != 4 && len(os.Args) != 5 {
 		log.Printf("Wrong number of arguments")
 		usage()
@@ -94,17 +96,9 @@ func main() {
 }
 
 func usage() {
-	os.Stdout.WriteString("Usage: dnslookup <domain> <server> [<providerName> <serverPk>]")
-	os.Stdout.WriteString("<domain>: mandatory, domain name to lookup")
-	os.Stdout.WriteString("<server>: mandatory, server address. Supported: plain, tls:// (DOT), https:// (DOH), sdns:// (DNSCrypt)")
-	os.Stdout.WriteString("<providerName>: optional, DNSCrypt provider name")
-	os.Stdout.WriteString("<serverPk>: optional, DNSCrypt server public key")
+	os.Stdout.WriteString("Usage: dnslookup <domain> <server> [<providerName> <serverPk>]\n")
+	os.Stdout.WriteString("<domain>: mandatory, domain name to lookup\n")
+	os.Stdout.WriteString("<server>: mandatory, server address. Supported: plain, tls:// (DOT), https:// (DOH), sdns:// (DNSCrypt)\n")
+	os.Stdout.WriteString("<providerName>: optional, DNSCrypt provider name\n")
+	os.Stdout.WriteString("<serverPk>: optional, DNSCrypt server public key\n")
 }
-
-// TODO after GO 1.13 release TLS 1.3 will be enabled by default. Remove this afterward
-func enableTLS13() {
-	err := os.Setenv("GODEBUG", os.Getenv("GODEBUG")+",tls13=1")
-	if err != nil {
-		log.Fatalf("Failed to enable TLS 1.3: %s", err)
-	}
-}