treewide get rid of go 1.12 (#83253)

* treewide Drop unneeded go 1.12 overrides

* Fix packr to be go module compatible.

I updated to version 2.8.0 which is the latest on master.
Then due to the 2 different sets of go modules which are used, I split
the build into two different derivations, then merged them togethor
using symlinkJoin to have the same output structure as the existing derivation.

* Remove consul dependency on go1.12

I updated the consul version to 1.7.2 and flipped it to building using
modules.

* Remove go1.12 from perkeep.

Update the version to the latest unstable on master.

* Update scaleway-cli to not be pinned to go1.12

Switched the version to 1.20

* Update prometheus-varnish-exporter to not depend on go1.12

* Update lnd to build with go1.12

Updated the version
Forced only building subpackages with main to prevent panics over
multiple modules in one repo

* Remove go1.12 from openshift

Had to update the version to 4.1.0 and do a bit of munging to get this
to work

* Remove go1.12 completely.

These are no longer needed.

* Update bazel-watcher and make it build with go 1.14

13 files changed, 104 insertions, 470 deletions

diff --git a/pkgs/applications/blockchains/lnd.nix b/pkgs/applications/blockchains/lnd.nix
index dd45746c8df5..0aa087e20afc 100644
--- a/pkgs/applications/blockchains/lnd.nix
+++ b/pkgs/applications/blockchains/lnd.nix
@@ -2,16 +2,18 @@
 
 buildGoModule rec {
   pname = "lnd";
-  version = "0.9.0-beta";
+  version = "0.9.2-beta";
 
   src = fetchFromGitHub {
     owner = "lightningnetwork";
     repo = "lnd";
     rev = "v${version}";
-    sha256 = "1hq105s9ykp6nsn4iicjnl3mwspqkbfsswkx7sgzv3jggg08fkq9";
+    sha256 = "0gm33z89fiqv231ks2mkpsblskcsijipq8fcmip6m6jy8g06b1gb";
   };
 
-  modSha256 = "1pvcvpiz6ck8xkgpypchrq9kgkik0jxd7f3jhihbgldsh4zaqiaq";
+  modSha256 = "1khxplvyaqgaddrx1nna1fw0nb1xz9bmqpxpfifif4f5nmx90gbr";
+
+  subPackages = ["cmd/lncli" "cmd/lnd"];
 
   meta = with lib; {
     description = "Lightning Network Daemon";
diff --git a/pkgs/applications/misc/perkeep/default.nix b/pkgs/applications/misc/perkeep/default.nix
index 87a6bdf5e53d..5a1e5ba65ded 100644
--- a/pkgs/applications/misc/perkeep/default.nix
+++ b/pkgs/applications/misc/perkeep/default.nix
@@ -13,13 +13,13 @@ let
 
 in buildGoPackage rec {
   name = "perkeep-${version}";
-  version = "unstable-2019-07-29";
+  version = "unstable-2020-03-23";
 
   src = fetchFromGitHub {
     owner = "perkeep";
     repo = "perkeep";
-    rev = "c9f78d02adf9740f3b8d403a1418554293cc9f41";
-    sha256 = "11rin94pjzg0kvizrq9ss42fjw7wfwx3g1pk8zdlhyfkiwwh2rmg";
+    rev = "c2e31370ddefd86b6112a5d891100ea3382a4254";
+    sha256 = "0jf02k20ms7h60wglcq6dj3vqi9rlfww7db5iplgwznbij70c1i4";
   };
 
   goPackagePath = "perkeep.org";
diff --git a/pkgs/applications/networking/cluster/openshift/default.nix b/pkgs/applications/networking/cluster/openshift/default.nix
index bcd259b138f7..19272c37ee8f 100644
--- a/pkgs/applications/networking/cluster/openshift/default.nix
+++ b/pkgs/applications/networking/cluster/openshift/default.nix
@@ -1,5 +1,5 @@
 { stdenv, lib, fetchFromGitHub, buildGoPackage, which, go-bindata, rsync, utillinux
-, coreutils, kerberos, clang, installShellFiles
+, coreutils, kerberos, ncurses, clang, installShellFiles
 , components ? [
   "cmd/oc"
   "cmd/openshift"
@@ -9,12 +9,12 @@
 with lib;
 
 let
-  version = "3.11.0";
+  version = "4.1.0";
   ver = stdenv.lib.elemAt (stdenv.lib.splitVersion version);
   versionMajor = ver 0;
   versionMinor = ver 1;
   versionPatch = ver 2;
-  gitCommit = "0cbc58b";
+  gitCommit = "b4261e0";
   # version is in vendor/k8s.io/kubernetes/pkg/version/base.go
   k8sversion = "v1.11.1";
   k8sgitcommit = "b1b2997";
@@ -28,29 +28,17 @@ in buildGoPackage rec {
     owner = "openshift";
     repo = "origin";
     rev = "v${version}";
-    sha256 = "06q4v2a1mm6c659ab0rzkqz6b66vx4avqfg0s9xckwhq420lzgka";
+    sha256 = "16bc6ljm418kxz92gz8ldm82491mvlqamrvigyr6ff72rf7ml7ba";
   };
 
   goPackagePath = "github.com/openshift/origin";
 
-  buildInputs = [ kerberos ];
+  buildInputs = [ kerberos ncurses ];
 
   nativeBuildInputs = [ which rsync go-bindata clang installShellFiles ];
 
   patchPhase = ''
     patchShebangs ./hack
-
-    substituteInPlace pkg/oc/clusterup/docker/host/host.go  \
-      --replace 'nsenter --mount=/rootfs/proc/1/ns/mnt findmnt' \
-      'nsenter --mount=/rootfs/proc/1/ns/mnt ${utillinux}/bin/findmnt'
-
-    substituteInPlace pkg/oc/clusterup/docker/host/host.go  \
-      --replace 'nsenter --mount=/rootfs/proc/1/ns/mnt mount' \
-      'nsenter --mount=/rootfs/proc/1/ns/mnt ${utillinux}/bin/mount'
-
-    substituteInPlace pkg/oc/clusterup/docker/host/host.go  \
-      --replace 'nsenter --mount=/rootfs/proc/1/ns/mnt mkdir' \
-      'nsenter --mount=/rootfs/proc/1/ns/mnt ${coreutils}/bin/mkdir'
   '';
 
   buildPhase = ''
@@ -58,6 +46,7 @@ in buildGoPackage rec {
     # Openshift build require this variables to be set
     # unless there is a .git folder which is not the case with fetchFromGitHub
     echo "OS_GIT_VERSION=v${version}" >> os-version-defs
+    echo "OS_GIT_TREE_STATE=clean" >> os-version-defs
     echo "OS_GIT_MAJOR=${versionMajor}" >> os-version-defs
     echo "OS_GIT_MINOR=${versionMinor}" >> os-version-defs
     echo "OS_GIT_PATCH=${versionPatch}" >> os-version-defs
diff --git a/pkgs/development/compilers/go/1.12.nix b/pkgs/development/compilers/go/1.12.nix
deleted file mode 100644
index 65e97d4e929e..000000000000
--- a/pkgs/development/compilers/go/1.12.nix
+++ /dev/null
@@ -1,247 +0,0 @@
-{ stdenv, fetchurl, tzdata, iana-etc, runCommand
-, perl, which, pkgconfig, patch, procps, pcre, cacert, Security, Foundation
-, mailcap, runtimeShell
-, buildPackages, pkgsTargetTarget
-}:
-
-let
-
-  inherit (stdenv.lib) optionals optionalString;
-
-  goBootstrap = runCommand "go-bootstrap" {} ''
-    mkdir $out
-    cp -rf ${buildPackages.go_bootstrap}/* $out/
-    chmod -R u+w $out
-    find $out -name "*.c" -delete
-    cp -rf $out/bin/* $out/share/go/bin/
-  '';
-
-  goarch = platform: {
-    i686 = "386";
-    x86_64 = "amd64";
-    aarch64 = "arm64";
-    arm = "arm";
-    armv5tel = "arm";
-    armv6l = "arm";
-    armv7l = "arm";
-  }.${platform.parsed.cpu.name} or (throw "Unsupported system");
-
-in
-
-stdenv.mkDerivation rec {
-  pname = "go";
-  version = "1.12.17";
-
-  src = fetchurl {
-    url = "https://dl.google.com/go/go${version}.src.tar.gz";
-    sha256 = "09cbl90maxry713wd18jdqrms3ivbvcm472csnxc78rsqhc851yy";
-  };
-
-  # perl is used for testing go vet
-  nativeBuildInputs = [ perl which pkgconfig patch procps ];
-  buildInputs = [ cacert pcre ]
-    ++ optionals stdenv.isLinux [ stdenv.cc.libc.out ]
-    ++ optionals (stdenv.hostPlatform.libc == "glibc") [ stdenv.cc.libc.static ];
-
-  depsTargetTargetPropagated = optionals stdenv.isDarwin [ Security Foundation ];
-
-  hardeningDisable = [ "all" ];
-
-  prePatch = ''
-    patchShebangs ./ # replace /bin/bash
-
-    # This source produces shell script at run time,
-    # and thus it is not corrected by patchShebangs.
-    substituteInPlace misc/cgo/testcarchive/carchive_test.go \
-      --replace '#!/usr/bin/env bash' '#!${runtimeShell}'
-
-    # Patch the mimetype database location which is missing on NixOS.
-    substituteInPlace src/mime/type_unix.go \
-      --replace '/etc/mime.types' '${mailcap}/etc/mime.types'
-
-    # Disabling the 'os/http/net' tests (they want files not available in
-    # chroot builds)
-    rm src/net/{listen,parse}_test.go
-    rm src/syscall/exec_linux_test.go
-
-    # !!! substituteInPlace does not seems to be effective.
-    # The os test wants to read files in an existing path. Just don't let it be /usr/bin.
-    sed -i 's,/usr/bin,'"`pwd`", src/os/os_test.go
-    sed -i 's,/bin/pwd,'"`type -P pwd`", src/os/os_test.go
-    # Disable the unix socket test
-    sed -i '/TestShutdownUnix/areturn' src/net/net_test.go
-    # Disable the hostname test
-    sed -i '/TestHostname/areturn' src/os/os_test.go
-    # ParseInLocation fails the test
-    sed -i '/TestParseInSydney/areturn' src/time/format_test.go
-    # Remove the api check as it never worked
-    sed -i '/src\/cmd\/api\/run.go/ireturn nil' src/cmd/dist/test.go
-    # Remove the coverage test as we have removed this utility
-    sed -i '/TestCoverageWithCgo/areturn' src/cmd/go/go_test.go
-    # Remove the timezone naming test
-    sed -i '/TestLoadFixed/areturn' src/time/time_test.go
-    # Remove disable setgid test
-    sed -i '/TestRespectSetgidDir/areturn' src/cmd/go/internal/work/build_test.go
-    # Remove cert tests that conflict with NixOS's cert resolution
-    sed -i '/TestEnvVars/areturn' src/crypto/x509/root_unix_test.go
-    # TestWritevError hangs sometimes
-    sed -i '/TestWritevError/areturn' src/net/writev_test.go
-    # TestVariousDeadlines fails sometimes
-    sed -i '/TestVariousDeadlines/areturn' src/net/timeout_test.go
-
-    sed -i 's,/etc/protocols,${iana-etc}/etc/protocols,' src/net/lookup_unix.go
-    sed -i 's,/etc/services,${iana-etc}/etc/services,' src/net/port_unix.go
-
-    # Disable cgo lookup tests not works, they depend on resolver
-    rm src/net/cgo_unix_test.go
-
-    # Disable TestGcSys because it's flakey in our tests, but the failure is not
-    # reproducible by multiple people in other environments.
-    # See https://github.com/NixOS/nixpkgs/issues/68361#issuecomment-537849272 and following
-    # NOTE: Try re-enabling for releases newer than 1.12.9
-    sed -i '/TestGcSys/areturn' src/runtime/gc_test.go
-
-  '' + optionalString stdenv.isLinux ''
-    sed -i 's,/usr/share/zoneinfo/,${tzdata}/share/zoneinfo/,' src/time/zoneinfo_unix.go
-  '' + optionalString stdenv.isAarch32 ''
-    echo '#!${runtimeShell}' > misc/cgo/testplugin/test.bash
-  '' + optionalString stdenv.isDarwin ''
-    substituteInPlace src/race.bash --replace \
-      "sysctl machdep.cpu.extfeatures | grep -qv EM64T" true
-    sed -i 's,strings.Contains(.*sysctl.*,true {,' src/cmd/dist/util.go
-    sed -i 's,"/etc","'"$TMPDIR"'",' src/os/os_test.go
-    sed -i 's,/_go_os_test,'"$TMPDIR"'/_go_os_test,' src/os/path_test.go
-
-    sed -i '/TestChdirAndGetwd/areturn' src/os/os_test.go
-    sed -i '/TestCredentialNoSetGroups/areturn' src/os/exec/exec_posix_test.go
-    sed -i '/TestRead0/areturn' src/os/os_test.go
-    sed -i '/TestSystemRoots/areturn' src/crypto/x509/root_darwin_test.go
-
-    sed -i '/TestGoInstallRebuildsStalePackagesInOtherGOPATH/areturn' src/cmd/go/go_test.go
-    sed -i '/TestBuildDashIInstallsDependencies/areturn' src/cmd/go/go_test.go
-
-    sed -i '/TestDisasmExtld/areturn' src/cmd/objdump/objdump_test.go
-
-    sed -i 's/unrecognized/unknown/' src/cmd/link/internal/ld/lib.go
-
-    # TestCurrent fails because Current is not implemented on Darwin
-    sed -i 's/TestCurrent/testCurrent/g' src/os/user/user_test.go
-    sed -i 's/TestLookup/testLookup/g' src/os/user/user_test.go
-
-    touch $TMPDIR/group $TMPDIR/hosts $TMPDIR/passwd
-  '';
-
-  patches = [
-    ./remove-tools-1.11.patch
-    ./ssl-cert-file-1.12.1.patch
-    ./remove-test-pie.patch
-    ./creds-test.patch
-    ./go-1.9-skip-flaky-19608.patch
-    ./go-1.9-skip-flaky-20072.patch
-    ./skip-external-network-tests.patch
-    ./skip-nohup-tests.patch
-  ] ++ [
-    # breaks under load: https://github.com/golang/go/issues/25628
-    (if stdenv.isAarch32
-    then ./skip-test-extra-files-on-aarch32.patch
-    else ./skip-test-extra-files-on-386.patch)
-  ];
-
-  postPatch = ''
-    find . -name '*.orig' -exec rm {} ';'
-  '';
-
-  GOOS = stdenv.targetPlatform.parsed.kernel.name;
-  GOARCH = goarch stdenv.targetPlatform;
-  # GOHOSTOS/GOHOSTARCH must match the building system, not the host system.
-  # Go will nevertheless build a for host system that we will copy over in
-  # the install phase.
-  GOHOSTOS = stdenv.buildPlatform.parsed.kernel.name;
-  GOHOSTARCH = goarch stdenv.buildPlatform;
-
-  # {CC,CXX}_FOR_TARGET must be only set for cross compilation case as go expect those
-  # to be different from CC/CXX
-  CC_FOR_TARGET = if (stdenv.buildPlatform != stdenv.targetPlatform) then
-      "${pkgsTargetTarget.stdenv.cc}/bin/${pkgsTargetTarget.stdenv.cc.targetPrefix}cc"
-    else
-      null;
-  CXX_FOR_TARGET = if (stdenv.buildPlatform != stdenv.targetPlatform) then
-      "${pkgsTargetTarget.stdenv.cc}/bin/${pkgsTargetTarget.stdenv.cc.targetPrefix}c++"
-    else
-      null;
-
-  GOARM = toString (stdenv.lib.intersectLists [(stdenv.hostPlatform.parsed.cpu.version or "")] ["5" "6" "7"]);
-  GO386 = 387; # from Arch: don't assume sse2 on i686
-  CGO_ENABLED = 1;
-  # Hopefully avoids test timeouts on Hydra
-  GO_TEST_TIMEOUT_SCALE = 3;
-
-  # Indicate that we are running on build infrastructure
-  # Some tests assume things like home directories and users exists
-  GO_BUILDER_NAME = "nix";
-
-  GOROOT_BOOTSTRAP="${goBootstrap}/share/go";
-
-  postConfigure = ''
-    export GOCACHE=$TMPDIR/go-cache
-    # this is compiled into the binary
-    export GOROOT_FINAL=$out/share/go
-
-    export PATH=$(pwd)/bin:$PATH
-
-    # Independent from host/target, CC should produce code for the building system.
-    export CC=${buildPackages.stdenv.cc}/bin/cc
-    ulimit -a
-  '';
-
-  postBuild = ''
-    (cd src && ./make.bash)
-  '';
-
-  doCheck = stdenv.hostPlatform == stdenv.targetPlatform && !stdenv.isDarwin;
-
-  checkPhase = ''
-    runHook preCheck
-    (cd src && HOME=$TMPDIR GOCACHE=$TMPDIR/go-cache ./run.bash --no-rebuild)
-    runHook postCheck
-  '';
-
-  preInstall = ''
-    rm -r pkg/{bootstrap,obj}
-    # Contains the wrong perl shebang when cross compiling,
-    # since it is not used for anything we can deleted as well.
-    rm src/regexp/syntax/make_perl_groups.pl
-  '' + (if (stdenv.buildPlatform != stdenv.hostPlatform) then ''
-    mv bin/*_*/* bin
-    rmdir bin/*_*
-    ${optionalString (!(GOHOSTARCH == GOARCH && GOOS == GOHOSTOS)) ''
-      rm -rf pkg/${GOHOSTOS}_${GOHOSTARCH} pkg/tool/${GOHOSTOS}_${GOHOSTARCH}
-    ''}
-  '' else if (stdenv.hostPlatform != stdenv.targetPlatform) then ''
-    rm -rf bin/*_*
-    ${optionalString (!(GOHOSTARCH == GOARCH && GOOS == GOHOSTOS)) ''
-      rm -rf pkg/${GOOS}_${GOARCH} pkg/tool/${GOOS}_${GOARCH}
-    ''}
-  '' else "");
-
-  installPhase = ''
-    runHook preInstall
-    mkdir -p $GOROOT_FINAL
-    cp -a bin pkg src lib misc api doc $GOROOT_FINAL
-    ln -s $GOROOT_FINAL/bin $out/bin
-    runHook postInstall
-  '';
-
-  setupHook = ./setup-hook.sh;
-
-  disallowedReferences = [ goBootstrap ];
-
-  meta = with stdenv.lib; {
-    branch = "1.12";
-    homepage = "http://golang.org/";
-    description = "The Go Programming language";
-    license = licenses.bsd3;
-    maintainers = with maintainers; [ cstrahan orivej mic92 rvolosatovs Frostman ];
-    platforms = platforms.linux ++ platforms.darwin;
-  };
-}
diff --git a/pkgs/development/compilers/go/remove-test-pie.patch b/pkgs/development/compilers/go/remove-test-pie.patch
deleted file mode 100644
index fb8e116af76f..000000000000
--- a/pkgs/development/compilers/go/remove-test-pie.patch
+++ /dev/null
@@ -1,24 +0,0 @@
---- source.org/src/cmd/dist/test.go	2018-02-22 10:40:40.089632339 +0000
-+++ source/src/cmd/dist/test.go	2018-02-22 10:56:53.075193788 +0000
-@@ -526,21 +526,6 @@
- 		})
- 	}
- 
--	// Test internal linking of PIE binaries where it is supported.
--	if goos == "linux" && goarch == "amd64" && !isAlpineLinux() {
--		// Issue 18243: We don't have a way to set the default
--		// dynamic linker used in internal linking mode. So
--		// this test is skipped on Alpine.
--		t.tests = append(t.tests, distTest{
--			name:    "pie_internal",
--			heading: "internal linking of -buildmode=pie",
--			fn: func(dt *distTest) error {
--				t.addCmd(dt, "src", t.goTest(), "reflect", "-buildmode=pie", "-ldflags=-linkmode=internal", t.timeout(60))
--				return nil
--			},
--		})
--	}
--
- 	// sync tests
- 	t.tests = append(t.tests, distTest{
- 		name:    "sync_cpu",
diff --git a/pkgs/development/compilers/go/ssl-cert-file-1.12.1.patch b/pkgs/development/compilers/go/ssl-cert-file-1.12.1.patch
deleted file mode 100644
index aa3116d76c12..000000000000
--- a/pkgs/development/compilers/go/ssl-cert-file-1.12.1.patch
+++ /dev/null
@@ -1,59 +0,0 @@
-diff -Naur a/src/crypto/x509/root_cgo_darwin.go b/src/crypto/x509/root_cgo_darwin.go
---- a/src/crypto/x509/root_cgo_darwin.go	2019-03-15 11:33:55.920232337 -0700
-+++ b/src/crypto/x509/root_cgo_darwin.go	2019-03-15 11:34:53.323180897 -0700
-@@ -270,11 +270,20 @@
- import "C"
- import (
-	"errors"
-+	"io/ioutil"
-+	"os"
-	"unsafe"
- )
-
- func loadSystemRoots() (*CertPool, error) {
-	roots := NewCertPool()
-+	if file := os.Getenv("NIX_SSL_CERT_FILE"); file != "" {
-+		data, err := ioutil.ReadFile(file)
-+		if err == nil {
-+			roots.AppendCertsFromPEM(data)
-+			return roots, nil
-+		}
-+	}
-
-	var data C.CFDataRef = 0
-	var untrustedData C.CFDataRef = 0
-diff -Naur a/src/crypto/x509/root_darwin.go b/src/crypto/x509/root_darwin.go
---- a/src/crypto/x509/root_darwin.go	2019-03-15 11:33:55.920232337 -0700
-+++ b/src/crypto/x509/root_darwin.go	2019-03-15 11:36:21.205123541 -0700
-@@ -92,6 +92,14 @@
-		verifyCh    = make(chan rootCandidate)
-	)
-
-+	if file := os.Getenv("NIX_SSL_CERT_FILE"); file != "" {
-+		data, err := ioutil.ReadFile(file)
-+		if err == nil {
-+			roots.AppendCertsFromPEM(data)
-+			return roots, nil
-+		}
-+	}
-+
-	// Using 4 goroutines to pipe into verify-cert seems to be
-	// about the best we can do. The verify-cert binary seems to
-	// just RPC to another server with coarse locking anyway, so
-diff -Naur a/src/crypto/x509/root_unix.go b/src/crypto/x509/root_unix.go
---- a/src/crypto/x509/root_unix.go	2019-03-15 11:33:55.920232337 -0700
-+++ b/src/crypto/x509/root_unix.go	2019-03-15 11:37:15.737326340 -0700
-@@ -38,6 +38,13 @@
-
- func loadSystemRoots() (*CertPool, error) {
-	roots := NewCertPool()
-+	if file := os.Getenv("NIX_SSL_CERT_FILE"); file != "" {
-+		data, err := ioutil.ReadFile(file)
-+		if err == nil {
-+			roots.AppendCertsFromPEM(data)
-+			return roots, nil
-+		}
-+	}
-
-	files := certFiles
-	if f := os.Getenv(certFileEnv); f != "" {
diff --git a/pkgs/development/libraries/packr/default.nix b/pkgs/development/libraries/packr/default.nix
index 4482a9cd312d..6a53743a10ea 100644
--- a/pkgs/development/libraries/packr/default.nix
+++ b/pkgs/development/libraries/packr/default.nix
@@ -1,22 +1,46 @@
 { buildGoModule
 , fetchFromGitHub
 , lib
+, stdenv
+, symlinkJoin
 }:
 
-buildGoModule rec {
-  pname = "packr";
-  version = "2.7.1";
+let p2 = buildGoModule rec {
+  pname = "packr2";
+  version = "2.8.0";
 
   src = fetchFromGitHub {
     owner = "gobuffalo";
-    repo = pname;
+    repo = "packr";
     rev = "v${version}";
-    sha256 = "0m5kl2fq8gf1v4vllgag2xl8fd382sdgqrcdb8f5alsnrdn08kb9";
+    sha256 = "1x78yq2yg0r82h7a67078llni85gk9nbd2ismlbqgppap7fcpyai";
+  }+"/v2";
+
+  subPackages = [ "packr2" ];
+
+  modSha256 = "1xxqyn78074jna0iri7sks6b2l4sdnn5sg57n09vrrf6kh39h2y9";
+
+  meta = with stdenv.lib; {
+    description = "The simple and easy way to embed static files into Go binaries";
+    homepage = "https://github.com/gobuffalo/packr";
+    license = licenses.mit;
+    maintainers = with maintainers; [ mmahut ];
+  };
+};
+p1 = buildGoModule rec {
+  pname = "packr1";
+  version = "2.8.0";
+
+  src = fetchFromGitHub {
+    owner = "gobuffalo";
+    repo = "packr";
+    rev = "v${version}";
+    sha256 = "1x78yq2yg0r82h7a67078llni85gk9nbd2ismlbqgppap7fcpyai";
   };
 
-  subPackages = [ "packr" "v2/packr2" ];
+  subPackages = [ "packr" ];
 
-  modSha256 = "0afhkvivma16bi8rz3kwcsz9mhmcn4zm6rrymxkvazx6b844hcdv";
+  modSha256 = "045qfdi82yhpghjd0cimxhas4nkj7g30n9qyvkrl9ck01sahx76f";
 
   meta = with lib; {
     description = "The simple and easy way to embed static files into Go binaries";
@@ -24,4 +48,9 @@ buildGoModule rec {
     license = licenses.mit;
     maintainers = with maintainers; [ mmahut ];
   };
+};
+in
+symlinkJoin{
+    name = "packr";
+    paths = [p1 p2];
 }
diff --git a/pkgs/development/tools/bazel-watcher/default.nix b/pkgs/development/tools/bazel-watcher/default.nix
index 27c72b351e73..9cdd72eeaaf4 100644
--- a/pkgs/development/tools/bazel-watcher/default.nix
+++ b/pkgs/development/tools/bazel-watcher/default.nix
@@ -5,35 +5,29 @@
 , go
 , python
 , stdenv
+, iana-etc
+, mailcap
+, tzdata
 }:
 
 let
   patches = [
     ./use-go-in-path.patch
-
-    # update rules_go to fix the build. Remove these when updating past 0.10.3
-    (fetchpatch {
-      url = "https://github.com/bazelbuild/bazel-watcher/commit/686130f50cea274f7453f6abc8c5249654047462.patch";
-      sha256 = "0rzs01sfiinl5d3dq9sx1bhl8kkzppdwh964fr7bzafqcxv5llmb";
-    })
-    (fetchpatch {
-      url = "https://github.com/bazelbuild/bazel-watcher/commit/18bdb44832ccc533e0ab3923ef80060eeb24582d.patch";
-      sha256 = "0k5hvlxlg4n092d53cbfxqqhzc6f1jv4licdhhi1dhckkhb4sdk6";
-    })
   ];
 in
 buildBazelPackage rec {
   name = "bazel-watcher-${version}";
-  version = "0.10.3";
+  version = "0.13.0";
 
   src = fetchFromGitHub {
     owner = "bazelbuild";
     repo = "bazel-watcher";
     rev = "v${version}";
-    sha256 = "17z4nqqsdrainbh8fmhf6sgrxwf7aknadmn94z1yqpxa7kb9x33v";
+    sha256 = "1fc3sp79znbbq1yjap56lham72n7cap8yfghpzrzmpl5brybjkvm";
   };
 
   nativeBuildInputs = [ go git python ];
+  removeRulesCC = false;
 
   bazelTarget = "//ibazel";
 
@@ -55,6 +49,10 @@ buildBazelPackage rec {
       rm -rf $bazelOut/external/{go_sdk,\@go_sdk.marker}
       sed -e '/^FILE:@go_sdk.*/d' -i $bazelOut/external/\@*.marker
 
+      # Retains go build input markers
+      chmod -R 755 $bazelOut/external/{bazel_gazelle_go_repository_cache,@\bazel_gazelle_go_repository_cache.marker}
+      rm -rf $bazelOut/external/{bazel_gazelle_go_repository_cache,@\bazel_gazelle_go_repository_cache.marker}
+
       # Remove the gazelle tools, they contain go binaries that are built
       # non-deterministically. As long as the gazelle version matches the tools
       # should be equivalent.
@@ -62,7 +60,7 @@ buildBazelPackage rec {
       sed -e '/^FILE:@bazel_gazelle_go_repository_tools.*/d' -i $bazelOut/external/\@*.marker
     '';
 
-    sha256 = "0cmj186n2y1g9kkdhcivmh2qvigvpnbp03m575b7hgsxi1cp3ssj";
+    sha256 = "0wj573dcirssr2cmq90b4yl57mv3gsxaj1s26afvkz1dvyxmq7sz";
   };
 
   buildAttrs = {
diff --git a/pkgs/servers/consul/default.nix b/pkgs/servers/consul/default.nix
index 8703e76cb713..299ad0bdbcb7 100644
--- a/pkgs/servers/consul/default.nix
+++ b/pkgs/servers/consul/default.nix
@@ -1,19 +1,17 @@
-{ stdenv, buildGoPackage, fetchFromGitHub }:
+{ stdenv, buildGoModule, fetchFromGitHub }:
 
-buildGoPackage rec {
+buildGoModule rec {
   pname = "consul";
   version = "1.7.2";
   rev = "v${version}";
 
-  goPackagePath = "github.com/hashicorp/consul";
-
-  # Note: Currently only release tags are supported, because they have the Consul UI
-  # vendored. See
-  #   https://github.com/NixOS/nixpkgs/pull/48714#issuecomment-433454834
-  # If you want to use a non-release commit as `src`, you probably want to improve
-  # this derivation so that it can build the UI's JavaScript from source.
-  # See https://github.com/NixOS/nixpkgs/pull/49082 for something like that.
-  # Or, if you want to patch something that doesn't touch the UI, you may want
+  # Note: Currently only release tags are supported, because they have the Consul UI	
+  # vendored. See	
+  #   https://github.com/NixOS/nixpkgs/pull/48714#issuecomment-433454834	
+  # If you want to use a non-release commit as `src`, you probably want to improve	
+  # this derivation so that it can build the UI's JavaScript from source.	
+  # See https://github.com/NixOS/nixpkgs/pull/49082 for something like that.	
+  # Or, if you want to patch something that doesn't touch the UI, you may want	
   # to apply your changes as patches on top of a release commit.
   src = fetchFromGitHub {
     owner = "hashicorp";
@@ -22,8 +20,14 @@ buildGoPackage rec {
     sha256 = "1q587d8aqfkwg4fymr56fnf038vkxbdqz5yilz96dzny27dhspj4";
   };
 
-  preBuild = ''
-    buildFlagsArray+=("-ldflags" "-X github.com/hashicorp/consul/version.GitDescribe=v${version} -X github.com/hashicorp/consul/version.Version=${version} -X github.com/hashicorp/consul/version.VersionPrerelease=")
+  # This corresponds to paths with package main - normally unneeded but consul
+  # has a split module structure in one repo
+  subPackages = ["." "connect/certgen"];
+
+  modSha256 = "164834gr8a7qvp72ccjpkbbg4h8idrcxvcp1fl7yi59iqsswfr7b";
+
+  preBuild = ''	
+  buildFlagsArray+=("-ldflags" "-X github.com/hashicorp/consul/version.GitDescribe=v${version} -X github.com/hashicorp/consul/version.Version=${version} -X github.com/hashicorp/consul/version.VersionPrerelease=")	
   '';
 
   meta = with stdenv.lib; {
diff --git a/pkgs/servers/monitoring/prometheus/varnish-exporter.nix b/pkgs/servers/monitoring/prometheus/varnish-exporter.nix
index d77675671950..03656470b92e 100644
--- a/pkgs/servers/monitoring/prometheus/varnish-exporter.nix
+++ b/pkgs/servers/monitoring/prometheus/varnish-exporter.nix
@@ -2,16 +2,16 @@
 
 buildGoModule rec {
   pname = "prometheus_varnish_exporter";
-  version = "1.5.2";
+  version = "unstable-2020-03-26";
 
   src = fetchFromGitHub {
     owner = "jonnenauha";
     repo = "prometheus_varnish_exporter";
-    rev = version;
-    sha256 = "0rpabw6a6paavv62f0gzhax9brzcgkly27rhkf0ihw8736gkw8ar";
+    rev = "f0f90fc69723de8b716cda16cb419e8a025130ff";
+    sha256 = "1viiiyvhpr7cnf8ykaaq4fzgg9xvn4hnlhv7cagy3jkjlmz60947";
   };
 
-  modSha256 = "0w1zg9jc2466srx9pdckw7rzn7ma4pbd0617b1h98v364wjzgj72";
+  modSha256 = "1vb720axjziiqcba4bdi528r6mc97ci0pfsk0ny50isrkh0s3jzz";
 
   nativeBuildInputs = [ makeWrapper ];
 
diff --git a/pkgs/tools/admin/scaleway-cli/default.nix b/pkgs/tools/admin/scaleway-cli/default.nix
index 68c20493d195..f9b608ebc4c6 100644
--- a/pkgs/tools/admin/scaleway-cli/default.nix
+++ b/pkgs/tools/admin/scaleway-cli/default.nix
@@ -2,7 +2,7 @@
 
 buildGoPackage rec{
   pname = "scaleway-cli";
-  version = "1.17";
+  version = "1.20";
 
   goPackagePath = "github.com/scaleway/scaleway-cli";
 
@@ -10,7 +10,7 @@ buildGoPackage rec{
     owner = "scaleway";
     repo = "scaleway-cli";
     rev = "v${version}";
-    sha256 = "0v50wk6q8537880whi6w83dia9y934v0s2xr1z52cn3mrsjghsnd";
+    sha256 = "14likzp3hl04nq9nmpmh9m5zqjyspy5cyk20dkh03c1nhkd4vcnx";
   };
 
   meta = with stdenv.lib; {
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 9d861fc538fc..7aa3ace7b5f5 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -60,6 +60,8 @@ mapAliases ({
   bittorrentSync14 = throw "bittorrentSync14 has been deprecated by resilio-sync."; # added 2019-06-03
   bittorrentSync20 = throw "bittorrentSync20 has been deprecated by resilio-sync."; # added 2019-06-03
   buildPerlPackage = perlPackages.buildPerlPackage; # added 2018-10-12
+  buildGo112Package = throw "buildGo112Package has been removed"; # added 2020-04-26
+  buildGo112Module = throw "buildGo112Module has been removed"; # added 2020-04-26
   bundler_HEAD = bundler; # added 2015-11-15
   cantarell_fonts = cantarell-fonts; # added 2018-03-03
   catfish = xfce.catfish; # added 2019-12-22
@@ -166,6 +168,7 @@ mapAliases ({
   gnuradio-rds = gr-rds; # added 2019-05-27
   gnuradio-osmosdr = gr-osmosdr; # added 2019-05-27
   gnustep-make = gnustep.make; # added 2016-7-6
+  go_1_12 = throw "go_1_12 has been removed"; # added 2020-04-26
   go-pup = pup; # added 2017-12-19
   gobjectIntrospection = gobject-introspection; # added 2018-12-02
   goimports = gotools; # added 2018-09-16
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index f23704e76e81..666927850d23 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -292,11 +292,7 @@ in
 
   packer = callPackage ../development/tools/packer { };
 
-  packr = callPackage ../development/libraries/packr {
-    # Version 2.6.0 fails to build with go 1.13 due to nested modules:
-    #   go: directory v2/packr2 is outside main module
-    buildGoModule = buildGo112Module;
-  };
+  packr = callPackage ../development/libraries/packr { };
 
   pet = callPackage ../development/tools/pet { };
 
@@ -1497,11 +1493,7 @@ in
 
   compactor = callPackage ../applications/networking/compactor { };
 
-  consul = callPackage ../servers/consul {
-    # Version 1.6.0 fails to build with go 1.13 due to broken dependency:
-    #   go/src/github.com/hashicorp/consul/vendor/github.com/envoyproxy/go-control-plane/envoy/type/http_status.pb.go:11:2: code in directory /build/go/src/github.com/hashicorp/consul/vendor/github.com/envoyproxy/protoc-gen-validate/validate expects import "github.com/lyft/protoc-gen-validate/validate"
-    buildGoPackage = buildGo112Package;
-  };
+  consul = callPackage ../servers/consul { };
 
   consul-alerts = callPackage ../servers/monitoring/consul-alerts { };
 
@@ -2772,11 +2764,7 @@ in
 
   curl_unix_socket = callPackage ../tools/networking/curl-unix-socket { };
 
-  curlie = callPackage ../tools/networking/curlie {
-    # Version 1.2.0 fails to build with go 1.13 due to:
-    #    verifying golang.org/x/crypto@v0.0.0-20180524125353-159ae71589f3: golang.org/x/crypto@v0.0.0-20180524125353-159ae71589f3: Get https://sum.golang.org/lookup/golang.org/x/crypto@v0.0.0-20180524125353-159ae71589f3: dial tcp: lookup sum.golang.org on [::1]:53: read udp [::1]:49088->[::1]:53: read: connection refused
-    buildGoModule = buildGo112Module;
-  };
+  curlie = callPackage ../tools/networking/curlie { };
 
   cunit = callPackage ../tools/misc/cunit { };
   bcunit = callPackage ../tools/misc/bcunit { };
@@ -3900,9 +3888,7 @@ in
 
   grpcurl = callPackage ../tools/networking/grpcurl { };
 
-  grpcui = callPackage ../tools/networking/grpcui {
-    buildGoModule = buildGo112Module;
-  };
+  grpcui = callPackage ../tools/networking/grpcui { };
 
   grub = pkgsi686Linux.callPackage ../tools/misc/grub ({
     stdenv = overrideCC stdenv buildPackages.pkgsi686Linux.gcc6;
@@ -4325,12 +4311,7 @@ in
   iperf3 = callPackage ../tools/networking/iperf/3.nix { };
   iperf = iperf3;
 
-  ipfs = callPackage ../applications/networking/ipfs {
-    # Version 0.4.22 fails to build with go 1.13 due to version validation:
-    #    go: github.com/go-critic/go-critic@v0.0.0-20181204210945-ee9bf5809ead: invalid pseudo-version: does not match version-control timestamp (2019-02-10T22:04:43Z)
-    # This is fixed in master, but release containing the fix does not exist yet.
-    buildGoModule = buildGo112Module;
-  };
+  ipfs = callPackage ../applications/networking/ipfs { };
   ipfs-migrator = callPackage ../applications/networking/ipfs-migrator { };
   ipfs-cluster = callPackage ../applications/networking/ipfs-cluster { };
 
@@ -5431,7 +5412,7 @@ in
 
   noip = callPackage ../tools/networking/noip { };
 
- nomad = callPackage ../applications/networking/cluster/nomad { };
+  nomad = callPackage ../applications/networking/cluster/nomad { };
 
   notable = callPackage ../applications/misc/notable { };
 
@@ -8571,13 +8552,6 @@ in
       inherit (darwin.apple_sdk.frameworks) Security;
     };
 
-  go_1_12 = callPackage ../development/compilers/go/1.12.nix ({
-    inherit (darwin.apple_sdk.frameworks) Security Foundation;
-  } // lib.optionalAttrs stdenv.isAarch64 {
-    stdenv = gcc8Stdenv;
-    buildPackages = buildPackages // { stdenv = gcc8Stdenv; };
-  });
-
   go_1_14 = callPackage ../development/compilers/go/1.14.nix ({
     inherit (darwin.apple_sdk.frameworks) Security Foundation;
   } // lib.optionalAttrs stdenv.isAarch64 {
@@ -9951,9 +9925,7 @@ in
 
   bazel-remote = callPackage ../development/tools/build-managers/bazel/bazel-remote { };
 
-  bazel-watcher = callPackage ../development/tools/bazel-watcher {
-    go = go_1_12;
-  };
+  bazel-watcher = callPackage ../development/tools/bazel-watcher { };
 
   bazel-gazelle = callPackage ../development/tools/bazel-gazelle { };
 
@@ -15204,18 +15176,12 @@ in
 
   ### DEVELOPMENT / GO MODULES
 
-  buildGo112Package = callPackage ../development/go-packages/generic {
-    go = buildPackages.go_1_12;
-  };
   buildGo114Package = callPackage ../development/go-packages/generic {
     go = buildPackages.go_1_14;
   };
 
   buildGoPackage = buildGo114Package;
 
-  buildGo112Module = callPackage ../development/go-modules/generic {
-    go = buildPackages.go_1_12;
-  };
   buildGo114Module = callPackage ../development/go-modules/generic {
     go = buildPackages.go_1_14;
   };
@@ -15534,9 +15500,7 @@ in
 
   grafana_reporter = callPackage ../servers/monitoring/grafana-reporter { };
 
-  gobetween = callPackage ../servers/gobetween {
-    buildGoModule = buildGo112Module;
-  };
+  gobetween = callPackage ../servers/gobetween { };
 
   h2o = callPackage ../servers/http/h2o { };
 
@@ -15994,11 +15958,7 @@ in
   prometheus-statsd-exporter = callPackage ../servers/monitoring/prometheus/statsd-exporter.nix { };
   prometheus-surfboard-exporter = callPackage ../servers/monitoring/prometheus/surfboard-exporter.nix { };
   prometheus-unifi-exporter = callPackage ../servers/monitoring/prometheus/unifi-exporter { };
-  prometheus-varnish-exporter = callPackage ../servers/monitoring/prometheus/varnish-exporter.nix {
-    # Version 1.5.1 fails to build with go 1.13 due to test failure
-    #  FAIL       github.com/jonnenauha/prometheus_varnish_exporter       0.041s
-    buildGoModule = buildGo112Module;
-  };
+  prometheus-varnish-exporter = callPackage ../servers/monitoring/prometheus/varnish-exporter.nix { };
   prometheus-jmx-httpserver = callPackage ../servers/monitoring/prometheus/jmx-httpserver.nix {  };
   prometheus-wireguard-exporter = callPackage ../servers/monitoring/prometheus/wireguard-exporter.nix {
     inherit (darwin.apple_sdk.frameworks) Security;
@@ -16394,9 +16354,7 @@ in
 
   cpustat = callPackage ../os-specific/linux/cpustat { };
 
-  cockroachdb = callPackage ../servers/sql/cockroachdb {
-    buildGoPackage = buildGo112Package;
-  };
+  cockroachdb = callPackage ../servers/sql/cockroachdb { };
 
   conky = callPackage ../os-specific/linux/conky ({
     lua = lua5_3_compat;
@@ -17250,11 +17208,7 @@ in
 
   gotests = callPackage ../development/tools/gotests { };
 
-  gotestsum = callPackage ../development/tools/gotestsum {
-    # Version 0.3.5 fails to build with go 1.13:
-    #    build ./testjson/internal/badmain: cannot find module for path ./testjson/internal/badmain
-    buildGoModule = buildGo112Module;
-  };
+  gotestsum = callPackage ../development/tools/gotestsum { };
 
   impl = callPackage ../development/tools/impl { };
 
@@ -18739,11 +18693,7 @@ in
     poppler = poppler_0_61;
   };
 
-  perkeep = callPackage ../applications/misc/perkeep {
-    # Revision c9f78d02adf9740f3b8d403a1418554293cc9f41 fails to build with go 1.13 due to a dependency:
-    #   go: bazil.org/fuse@v0.0.0-20160811212531-371fbbdaa898: Get https://proxy.golang.org/bazil.org/fuse/@v/v0.0.0-20160811212531-371fbbdaa898.mod: dial tcp: lookup proxy.golang.org on [::1]:53: read udp [::1]:36526->[::1]:53: read: connection refused
-    buildGoPackage = buildGo112Package;
-  };
+  perkeep = callPackage ../applications/misc/perkeep { };
 
   canto-curses = callPackage ../applications/networking/feedreaders/canto-curses { };
 
@@ -20558,10 +20508,7 @@ in
 
   marp = callPackage ../applications/office/marp { };
 
-  magnetico = callPackage ../applications/networking/p2p/magnetico {
-    # Version 2019-08-14 fails to build with go 1.13 due to missing go.sum
-    buildGoModule = buildGo112Module;
-  };
+  magnetico = callPackage ../applications/networking/p2p/magnetico { };
 
   matchbox = callPackage ../applications/window-managers/matchbox { };
 
@@ -20849,9 +20796,7 @@ in
 
   open-policy-agent = callPackage ../development/tools/open-policy-agent { };
 
-  openshift = callPackage ../applications/networking/cluster/openshift {
-    buildGoPackage = buildGo112Package;
-  };
+  openshift = callPackage ../applications/networking/cluster/openshift { };
 
   oroborus = callPackage ../applications/window-managers/oroborus {};
 
@@ -22086,9 +22031,7 @@ in
 
   teleprompter = callPackage ../applications/misc/teleprompter {};
 
-  tendermint = callPackage ../tools/networking/tendermint {
-    buildGoModule = buildGo112Module;
-  };
+  tendermint = callPackage ../tools/networking/tendermint { };
 
   termdown = (newScope pythonPackages) ../applications/misc/termdown { };
 
@@ -23132,9 +23075,7 @@ in
   };
   litecoind = litecoin.override { withGui = false; };
 
-  lnd = callPackage ../applications/blockchains/lnd.nix {
-    buildGoModule = buildGo112Module;
-  };
+  lnd = callPackage ../applications/blockchains/lnd.nix { };
 
   monero = callPackage ../applications/blockchains/monero {
     inherit (darwin.apple_sdk.frameworks) CoreData IOKit PCSC;
@@ -23799,9 +23740,7 @@ in
 
   sauerbraten = callPackage ../games/sauerbraten {};
 
-  scaleway-cli = callPackage ../tools/admin/scaleway-cli {
-    buildGoPackage = buildGo112Package;
-  };
+  scaleway-cli = callPackage ../tools/admin/scaleway-cli { };
 
   scid = callPackage ../games/scid {
     tcl = tcl-8_5;