Revert "Remove support for Go modules"

This reverts commit 5e96539f55495f6fa80240037db6cb1886a99b89.

Author: Prometheus2677

.travis.yml

@@ -14,6 +14,7 @@ go_import_path: github.com/golang-migrate/migrate
 
 env:
   global:
+    - GO111MODULE=on
     - MIGRATE_TEST_CONTAINER_BOOT_TIMEOUT=60
     - DOCKER_USERNAME=golangmigrate
     -   secure: "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"
@@ -32,12 +33,12 @@ cache:
 before_install:
   - echo "TRAVIS_GO_VERSION=${TRAVIS_GO_VERSION}"
   # Download the binary to bin folder in $GOPATH
-  - curl -L -s https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 -o $GOPATH/bin/dep
+  - if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then curl -L -s https://github.com/golang/dep/releases/download/v0.5.0/dep-linux-amd64 -o $GOPATH/bin/dep; fi
   # Make the binary executable
-  - chmod +x $GOPATH/bin/dep
+  - if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then chmod +x $GOPATH/bin/dep; fi
 
 install:
-  - dep ensure -vendor-only
+  - if [[ "${TRAVIS_GO_VERSION}" == 1.10* ]]; then dep ensure -vendor-only; fi
   - go get github.com/mattn/goveralls
 
 script:

Dockerfile

@@ -15,6 +15,7 @@ COPY cli ./cli
 COPY database ./database
 COPY source ./source
 
+ENV GO111MODULE=on
 ENV DATABASES="postgres mysql redshift cassandra spanner cockroachdb clickhouse"
 ENV SOURCES="file go_bindata github aws_s3 google_cloud_storage"
 

README.md

@@ -107,9 +107,9 @@ __[Go Documentation](https://godoc.org/github.com/golang-migrate/migrate)__
 
 ```go
 import (
-    "github.com/golang-migrate/migrate"
-    _ "github.com/golang-migrate/migrate/database/postgres"
-    _ "github.com/golang-migrate/migrate/source/github"
+    "github.com/golang-migrate/migrate/v3"
+    _ "github.com/golang-migrate/migrate/v3/database/postgres"
+    _ "github.com/golang-migrate/migrate/v3/source/github"
 )
 
 func main() {
@@ -126,9 +126,9 @@ Want to use an existing database client?
 import (
     "database/sql"
     _ "github.com/lib/pq"
-    "github.com/golang-migrate/migrate"
-    "github.com/golang-migrate/migrate/database/postgres"
-    _ "github.com/golang-migrate/migrate/source/file"
+    "github.com/golang-migrate/migrate/v3"
+    "github.com/golang-migrate/migrate/v3/database/postgres"
+    _ "github.com/golang-migrate/migrate/v3/source/file"
 )
 
 func main() {

cli/build_aws-s3.go

@@ -3,5 +3,5 @@
 package main
 
 import (
-	_ "github.com/golang-migrate/migrate/source/aws_s3"
+	_ "github.com/golang-migrate/migrate/v3/source/aws_s3"
 )

cli/build_cassandra.go

@@ -3,5 +3,5 @@
 package main
 
 import (
-	_ "github.com/golang-migrate/migrate/database/cassandra"
+	_ "github.com/golang-migrate/migrate/v3/database/cassandra"
 )

cli/build_clickhouse.go

@@ -3,6 +3,6 @@
 package main
 
 import (
-	_ "github.com/golang-migrate/migrate/database/clickhouse"
+	_ "github.com/golang-migrate/migrate/v3/database/clickhouse"
 	_ "github.com/kshvakov/clickhouse"
 )

cli/build_cockroachdb.go

@@ -3,5 +3,5 @@
 package main
 
 import (
-	_ "github.com/golang-migrate/migrate/database/cockroachdb"
+	_ "github.com/golang-migrate/migrate/v3/database/cockroachdb"
 )

cli/build_github.go

@@ -3,5 +3,5 @@
 package main
 
 import (
-	_ "github.com/golang-migrate/migrate/source/github"
+	_ "github.com/golang-migrate/migrate/v3/source/github"
 )

cli/build_go-bindata.go

@@ -3,5 +3,5 @@
 package main
 
 import (
-	_ "github.com/golang-migrate/migrate/source/go_bindata"
+	_ "github.com/golang-migrate/migrate/v3/source/go_bindata"
 )

cli/build_godoc-vfs.go

@@ -3,5 +3,5 @@
 package main
 
 import (
-	_ "github.com/golang-migrate/migrate/source/godoc_vfs"
+	_ "github.com/golang-migrate/migrate/v3/source/godoc_vfs"
 )