Use go 1.12 for tests and deprecate go 1.9 (#6186)

Blocked until 1.12 docker images are released

.drone.yml

@@ -56,15 +56,15 @@ pipeline:
  event: [ push, tag, pull_request ]
 
  build-without-gcc:
- image: golang:1.9
+ image: golang:1.10 # this step is kept as the lowest version of golang that we support
  pull: true
  commands:
  - go build -o gitea_no_gcc # test if build succeeds without the sqlite tag
  when:
  event: [ push, tag, pull_request ]
 
  build:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  environment:
  TAGS: bindata sqlite sqlite_unlock_notify
@@ -82,8 +82,8 @@ pipeline:
  when:
  event: [ push, tag, pull_request ]
 
- test:
- image: golang:1.11
+ unit-test:
+ image: golang:1.12
  pull: true
  group: test
  environment:
@@ -94,8 +94,8 @@ pipeline:
  event: [ push, pull_request ]
  branch: [ master ]
 
- test:
- image: golang:1.11
+ release-test:
+ image: golang:1.12
  pull: true
  group: test
  environment:
@@ -106,8 +106,8 @@ pipeline:
  event: [ push, pull_request ]
  branch: [ release/* ]
 
- test:
- image: golang:1.11
+ tag-test:
+ image: golang:1.12
  pull: true
  group: test
  environment:
@@ -118,7 +118,7 @@ pipeline:
  event: [ tag ]
 
  test-sqlite:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  group: test
  environment:
@@ -133,7 +133,7 @@ pipeline:
  event: [ push, tag, pull_request ]
 
  test-mysql:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  group: test
  environment:
@@ -148,8 +148,8 @@ pipeline:
  event: [ push, pull_request ]
  branch: [ master ]
 
- test-mysql:
- image: golang:1.11
+ tag-test-mysql:
+ image: golang:1.12
  pull: true
  group: test
  environment:
@@ -165,7 +165,7 @@ pipeline:
  event: [ tag ]
 
  test-pgsql:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  group: test
  environment:
@@ -181,7 +181,7 @@ pipeline:
  event: [ push, tag, pull_request ]
 
  test-mssql:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  group: test
  environment:
@@ -196,7 +196,7 @@ pipeline:
  event: [ push, tag, pull_request ]
 
  bench-sqlite:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  group: bench
  commands:
@@ -205,7 +205,7 @@ pipeline:
  event: [ tag ]
 
  bench-mysql:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  group: bench
  commands:
@@ -214,7 +214,7 @@ pipeline:
  event: [ tag ]
 
  bench-mssql:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  group: bench
  commands:
@@ -223,7 +223,7 @@ pipeline:
  event: [ tag ]
 
  bench-pgsql:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  group: bench
  commands:
@@ -232,7 +232,7 @@ pipeline:
  event: [ tag ]
 
  generate-coverage:
- image: golang:1.11
+ image: golang:1.12
  pull: true
  environment:
  TAGS: bindata
@@ -290,7 +290,7 @@ pipeline:
  when:
  event: [ pull_request ]
 
- docker:
+ release-docker:
  image: plugins/docker:17.12
  pull: true
  secrets: [ docker_username, docker_password ]
@@ -323,7 +323,7 @@ pipeline:
  when:
  event: [ push, tag ]
 
- release:
+ tag-release:
  image: plugins/s3:1
  pull: true
  secrets: [ aws_access_key_id, aws_secret_access_key ]
@@ -337,7 +337,7 @@ pipeline:
  when:
  event: [ tag ]
 
- release:
+ release-branch-release:
  image: plugins/s3:1
  pull: true
  secrets: [ aws_access_key_id, aws_secret_access_key ]