Provide all the binaries needed by the vim-go plugin

pkgs/development/tools/asmfmt/default.nix

@@ -0,0 +1,37 @@
+{ buildGoPackage
+, lib
+, fetchFromGitHub
+, fetchpatch
+}:
+
+buildGoPackage rec {
+  name = "asmfmt-${version}";
+  version = "1.1";
+
+  goPackagePath = "github.com/klauspost/asmfmt";
+
+  src = fetchFromGitHub {
+    owner = "klauspost";
+    repo = "asmfmt";
+    rev = "v${version}";
+    sha256 = "08mybfizcvck460axakycz9ndzcgwqilp5mmgm4bl8hfrn36mskw";
+  };
+
+  patches = [
+    (fetchpatch {
+      excludes = ["README.md"];
+      url = "https://github.com/klauspost/asmfmt/commit/39a37c8aed8095e0fdfb07f78fc8acbd465d9627.patch";
+      sha256 = "18bc77l87mf0yvqc3adlakxz6wflyqfsc2wrmh9q0nlqghlmnw5k";
+    })
+  ];
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "Go Assembler Formatter";
+    homepage = https://github.com/klauspost/asmfmt;
+    license = licenses.mit;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pkgs/development/tools/check/default.nix

@@ -0,0 +1,30 @@
+{ buildGoPackage
+, lib
+, fetchFromGitLab
+}:
+
+buildGoPackage rec {
+  name = "check-unstable-${version}";
+  version = "2018-09-12";
+  rev = "88db195993f8e991ad402754accd0635490769f9";
+
+  goPackagePath = "gitlab.com/opennota/check";
+
+  src = fetchFromGitLab {
+    inherit rev;
+
+    owner = "opennota";
+    repo = "check";
+    sha256 = "1983xmdkgpqda4qz8ashc6xv1zg5jl4zly3w566grxc5sfxpgf0i";
+  };
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "A set of utilities for checking Go sources.";
+    homepage = https://gitlab.com/opennota/check;
+    license = licenses.gpl3;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pkgs/development/tools/deadcode/default.nix

@@ -0,0 +1,31 @@
+{ buildGoPackage
+, lib
+, fetchFromGitHub
+}:
+
+# TODO(yl): should we package https://github.com/remyoudompheng/go-misc instead of
+# the standalone extract of deadcode from it?
+buildGoPackage rec {
+  name = "deadcode-unstable-${version}";
+  version = "2016-07-24";
+  rev = "210d2dc333e90c7e3eedf4f2242507a8e83ed4ab";
+
+  goPackagePath = "github.com/tsenart/deadcode";
+  excludedPackages = "\\(cmd/fillswitch/test-fixtures\\)";
+
+  src = fetchFromGitHub {
+    inherit rev;
+
+    owner = "tsenart";
+    repo = "deadcode";
+    sha256 = "05kif593f4wygnrq2fdjhn7kkcpdmgjnykcila85d0gqlb1f36g0";
+  };
+
+  meta = with lib; {
+    description = "deadcode is a very simple utility which detects unused declarations in a Go package.";
+    homepage = https://github.com/remyoudompheng/go-misc/tree/master/deadcode;
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pkgs/development/tools/errcheck/default.nix

@@ -0,0 +1,29 @@
+{ buildGoPackage
+, lib
+, fetchFromGitHub
+}:
+
+buildGoPackage rec {
+  name = "errcheck-${version}";
+  version = "1.1.0";
+
+  goPackagePath = "github.com/kisielk/errcheck";
+  excludedPackages = "\\(testdata\\)";
+
+  src = fetchFromGitHub {
+    owner = "kisielk";
+    repo = "errcheck";
+    rev = "v${version}";
+    sha256 = "19vd4rxmqbk5lpiav3pf7df3yjlz0l0dwx9mn0gjq5f998iyhy6y";
+  };
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "errcheck is a program for checking for unchecked errors in go programs.";
+    homepage = https://github.com/kisielk/errcheck;
+    license = licenses.mit;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pkgs/development/tools/go-tools/default.nix

@@ -0,0 +1,29 @@
+{ buildGoPackage
+, lib
+, fetchFromGitHub
+}:
+
+buildGoPackage rec {
+  name = "go-tools-${version}";
+  version = "2017.2.2";
+
+  goPackagePath = "honnef.co/go/tools";
+  excludedPackages = ''\(simple\|ssa\|ssa/ssautil\|lint\|staticcheck\|unused\)/testdata'';
+
+  src = fetchFromGitHub {
+    owner = "dominikh";
+    repo = "go-tools";
+    rev = "${version}";
+    sha256 = "1khl6szjj0skkfqp234p9rf3icik7fw2pk2x0wbj3wa9q3f84hb7";
+  };
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "A collection of tools and libraries for working with Go code, including linters and static analysis.";
+    homepage = https://staticcheck.io;
+    license = licenses.mit;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pkgs/development/tools/goconst/default.nix

@@ -0,0 +1,27 @@
+{ buildGoPackage
+, lib
+, fetchFromGitHub
+}:
+
+buildGoPackage rec {
+  name = "goconst-${version}";
+  version = "1.1.0";
+
+  goPackagePath = "github.com/jgautheron/goconst";
+  excludedPackages = ''testdata'';
+
+  src = fetchFromGitHub {
+    owner = "jgautheron";
+    repo = "goconst";
+    rev = version;
+    sha256 = "0zhscvv9w54q1h2vs8xx3qkz98cf36qhxjvdq0xyz3qvn4vhnyw6";
+  };
+
+  meta = with lib; {
+    description = "Find in Go repeated strings that could be replaced by a constant";
+    homepage = https://github.com/jgautheron/goconst;
+    license = licenses.mit;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pkgs/development/tools/gocyclo/default.nix

@@ -0,0 +1,28 @@
+{ buildGoPackage
+, lib
+, fetchFromGitHub
+}:
+
+buildGoPackage rec {
+  name = "gocyclo-unstable-${version}";
+  version = "2015-02-08";
+  rev = "aa8f8b160214d8dfccfe3e17e578dd0fcc6fede7";
+
+  goPackagePath = "github.com/alecthomas/gocyclo";
+
+  src = fetchFromGitHub {
+    inherit rev;
+
+    owner = "alecthomas";
+    repo = "gocyclo";
+    sha256 = "094rj97q38j53lmn2scshrg8kws8c542yq5apih1ahm9wdkv8pxr";
+  };
+
+  meta = with lib; {
+    description = "Calculate cyclomatic complexities of functions in Go source code.";
+    homepage = https://github.com/alecthomas/gocyclo;
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}

pkgs/development/tools/gogetdoc/default.nix

@@ -0,0 +1,31 @@
+{ buildGoPackage
+, lib
+, fetchFromGitHub
+}:
+
+buildGoPackage rec {
+  name = "gogetdoc-unstable-${version}";
+  version = "2018-10-25";
+  rev = "9098cf5fc236a5e25060730544af2ba6d65cd968";
+
+  goPackagePath = "github.com/zmb3/gogetdoc";
+  excludedPackages = "\\(testdata\\)";
+
+  src = fetchFromGitHub {
+    inherit rev;
+
+    owner = "zmb3";
+    repo = "gogetdoc";
+    sha256 = "159dgkd2lz07kimbpzminli5p539l4ry0dr93r46iz3lk5q76znl";
+  };
+
+  goDeps = ./deps.nix;
+
+  meta = with lib; {
+    description = "Gets documentation for items in Go source code";
+    homepage = https://github.com/zmb3/gogetdoc;
+    license = licenses.bsd3;
+    maintainers = with maintainers; [ kalbasit ];
+    platforms = platforms.linux ++ platforms.darwin;
+  };
+}