use Go modules instead of dept

Makefile

@@ -1,20 +1,16 @@
 SHELL := /bin/bash
 
-export PATH := $(PWD)/_tools:$(PATH)
+export GOBIN := $(PWD)/_tools
+export PATH := $(GOBIN):$(PATH)
 export GO111MODULE := on
 
 .PHONY: generate
 generate:
 	go generate ./...
 
-.PHONY: dept
-dept:
-	@go get github.com/ktr0731/dept@v0.1.2
-	@go build -o _tools/dept github.com/ktr0731/dept
-
 .PHONY: tools
-tools: dept
-	@dept -v build
+tools:
+	@cat tools/tools.go | grep -E '^\s*_\s.*' | awk '{ print $$2 }' | xargs go install
 
 .PHONY: build
 build:

go.mod

@@ -1,15 +1,19 @@
 module github.com/ktr0731/go-fuzzyfinder
 
 require (
+	github.com/Songmu/gocredits v0.2.0
 	github.com/gdamore/tcell/v2 v2.0.0
+	github.com/golangci/golangci-lint v1.33.0
 	github.com/google/go-cmp v0.5.4
 	github.com/google/gofuzz v1.2.0
+	github.com/goreleaser/goreleaser v0.149.0 // indirect
+	github.com/kisielk/godepgraph v0.0.0-20190626013829-57a7e4a651a9 // indirect
+	github.com/ktr0731/bump v0.1.0 // indirect
+	github.com/matryer/moq v0.1.4 // indirect
 	github.com/mattn/go-runewidth v0.0.9
 	github.com/micmonay/keybd_event v1.1.0
 	github.com/nsf/termbox-go v0.0.0-20201124104050-ed494de23a00
 	github.com/pkg/errors v0.9.1
-	golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f // indirect
-	golang.org/x/text v0.3.3 // indirect
 	golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1 // indirect
 )