Fix aliases usage on bblfsh client impl.

- Add aliases to supportedLanguages slice to check also alias names.
- Make IsSupported to check lang names in lower case.
- Update go-mysql-server to fix some nil handling errors.
- Fix regression query that was using DISTINCT on aggregations giving
wrong results.
- Update minimal supported bblfsh version on documentation.

Signed-off-by: Antonio Navarro Perez <antnavper@gmail.com>

Author: ajnavarro

.travis.yml

@@ -22,10 +22,7 @@ before_install:
   - sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-6 90
 
 before_script:
-  - docker run -d --name bblfshd --privileged -p 9432:9432 -v /var/lib/bblfshd:/var/lib/bblfshd bblfsh/bblfshd
-  - docker exec -it bblfshd bblfshctl driver install python bblfsh/python-driver
-  - docker exec -it bblfshd bblfshctl driver install php bblfsh/php-driver
-  - docker exec -it bblfshd bblfshctl driver install go bblfsh/go-driver
+  - docker run -d --name bblfshd --privileged -p 9432:9432 -v /var/lib/bblfshd:/var/lib/bblfshd bblfsh/bblfshd:v2.14.0-drivers
   - go get -v github.com/go-sql-driver/mysql/...
   - go get gopkg.in/src-d/go-git-fixtures.v3/...
 

CHANGELOG.md

@@ -6,6 +6,14 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.21.0-beta3] - 2019-06-19
+
+### Fixed
+
+- bblfsh aliases are now handled correctly ([#728](https://github.com/src-d/gitbase/issues/728)).
+- sql: correctly handle nulls in SQL type conversion ([#753](https://github.com/src-d/go-mysql-server/pull/753))
+- sql/parse: error for unsupported distinct on aggregations ([#869](https://github.com/src-d/gitbase/issues/869))
+
 ## [0.21.0-beta2] - 2019-06-18
 
 ### Added

_testdata/regression.yml

@@ -23,7 +23,19 @@
   ID: 'query04'
   Name: 'Top 10 repositories by contributor count (all branches)'
   Statements:
-    - SELECT repository_id,contributor_count FROM (SELECT repository_id, COUNT(DISTINCT commit_author_email) AS contributor_count FROM commits GROUP BY repository_id) AS q ORDER BY contributor_count DESC LIMIT 10
+    - >
+      SELECT 
+        repository_id, 
+        COUNT(commit_author_email) as contributor_count 
+      FROM (
+        SELECT DISTINCT 
+          repository_id, 
+          commit_author_email 
+        FROM commits
+      ) as q 
+      GROUP BY repository_id  
+      ORDER BY contributor_count DESC 
+      LIMIT 10
 -
   ID: 'query05'
   Name: 'Query all files from HEAD'

docs/using-gitbase/getting-started.md

@@ -4,7 +4,7 @@
 
 `gitbase` optional dependencies that should be running on your system if you're planning on using certain functionality.
 
-- [bblfsh](https://github.com/bblfsh/bblfshd) >= 2.10.0 (only if you're planning to use the `UAST` functionality provided in gitbase)
+- [bblfsh](https://github.com/bblfsh/bblfshd) >= 2.14.0 (only if you're planning to use the `UAST` functionality provided in gitbase)
 
 ## Installing gitbase
 

go.mod

@@ -16,7 +16,7 @@ require (
 	github.com/src-d/enry/v2 v2.0.0
 	github.com/src-d/go-git v4.7.0+incompatible
 	github.com/src-d/go-git-fixtures v3.5.1-0.20190605154830-57f3972b0248+incompatible
-	github.com/src-d/go-mysql-server v0.4.1-0.20190617130801-5f48ea31ce99
+	github.com/src-d/go-mysql-server v0.4.1-0.20190619104848-eaab1795353a
 	github.com/stretchr/testify v1.3.0
 	github.com/uber-go/atomic v1.4.0 // indirect
 	github.com/uber/jaeger-client-go v2.16.0+incompatible

go.sum

@@ -204,8 +204,8 @@ github.com/src-d/go-git v4.7.0+incompatible h1:IYSSnbAHeKmsfbQFi9ozbid+KNh0bKjlo
 github.com/src-d/go-git v4.7.0+incompatible/go.mod h1:1bQciz+hn0jzPQNsYj0hDFZHLJBdV7gXE2mWhC7EkFk=
 github.com/src-d/go-git-fixtures v3.5.1-0.20190605154830-57f3972b0248+incompatible h1:A5bKevhs9C//Nh8QV0J+1KphEaIa25cDe1DTs/yPxDI=
 github.com/src-d/go-git-fixtures v3.5.1-0.20190605154830-57f3972b0248+incompatible/go.mod h1:XcIQp7L+k0pgfTqfbaTKj3kxlBv8kYOKZ/tKNXbZFLg=
-github.com/src-d/go-mysql-server v0.4.1-0.20190617130801-5f48ea31ce99 h1:oZMn2HmQlDRHxWvyXRZnE9uUwUaVXVE/qrcvuFFDJ7s=
-github.com/src-d/go-mysql-server v0.4.1-0.20190617130801-5f48ea31ce99/go.mod h1:GO8SmBnN9LcKSXy6DYuBbqKtJvrRnHsBrlXvlVOX+NM=
+github.com/src-d/go-mysql-server v0.4.1-0.20190619104848-eaab1795353a h1:tAgjKO6ynjJasm6wTSjmFJIf/lh/Rk3dPVCUnOXAWEQ=
+github.com/src-d/go-mysql-server v0.4.1-0.20190619104848-eaab1795353a/go.mod h1:GO8SmBnN9LcKSXy6DYuBbqKtJvrRnHsBrlXvlVOX+NM=
 github.com/src-d/go-oniguruma v1.0.0 h1:JDk5PUAjreGsGAKLsoDLNmrsaryjJ5RqT3h+Si6aw/E=
 github.com/src-d/go-oniguruma v1.0.0/go.mod h1:chVbff8kcVtmrhxtZ3yBVLLquXbzCS6DrxQaAK/CeqM=
 github.com/src-d/go-oniguruma v1.1.0 h1:EG+Nm5n2JqWUaCjtM0NtutPxU7ZN5Tp50GWrrV8bTww=

integration_test.go

@@ -15,14 +15,14 @@ import (
 
 	"github.com/src-d/gitbase"
 	"github.com/src-d/gitbase/internal/function"
-	"github.com/stretchr/testify/require"
 	fixtures "github.com/src-d/go-git-fixtures"
-	"gopkg.in/src-d/go-git.v4/plumbing/cache"
 	sqle "github.com/src-d/go-mysql-server"
 	"github.com/src-d/go-mysql-server/auth"
 	"github.com/src-d/go-mysql-server/sql"
 	"github.com/src-d/go-mysql-server/sql/analyzer"
 	"github.com/src-d/go-mysql-server/sql/index/pilosa"
+	"github.com/stretchr/testify/require"
+	"gopkg.in/src-d/go-git.v4/plumbing/cache"
 )
 
 func TestIntegration(t *testing.T) {
@@ -330,20 +330,20 @@ func TestIntegration(t *testing.T) {
 		},
 		{
 			`
-			SELECT
-				repository_id,
-				contributor_count
-			FROM (
-				SELECT
-					repository_id,
-					COUNT(DISTINCT commit_author_email) AS contributor_count
-				FROM commits
-				GROUP BY repository_id
-			) AS q
-			ORDER BY contributor_count DESC
-			LIMIT 10
+			SELECT 
+	      		repository_id, 
+	      		COUNT(commit_author_email) as contributor_count 
+      		FROM (
+	      		SELECT DISTINCT 
+		      		repository_id, 
+		      		commit_author_email 
+	      		FROM commits
+      		) as q 
+      		GROUP BY repository_id  
+      		ORDER BY contributor_count DESC 
+      		LIMIT 10
 			`,
-			[]sql.Row{{"worktree", int64(9)}},
+			[]sql.Row{{"worktree", int64(2)}},
 		},
 		{
 			`SELECT cf.file_path
@@ -394,7 +394,6 @@ func TestIntegration(t *testing.T) {
 				require.NoError(err)
 				rows, err := sql.RowIterToRows(iter)
 				require.NoError(err)
-
 				require.ElementsMatch(tt.result, rows)
 			})
 		}

session.go

@@ -105,7 +105,7 @@ func (c *BblfshClient) IsLanguageSupported(ctx context.Context, lang string) (bo
 	}
 
 	for _, lng := range langs {
-		if lng == strings.ToLower(lang) {
+		if strings.ToLower(lng) == strings.ToLower(lang) {
 			return true, nil
 		}
 	}
@@ -126,6 +126,7 @@ func (c *BblfshClient) SupportedLanguages(ctx context.Context) ([]string, error)
 
 		for _, dm := range driverManifests {
 			c.supportedLanguages = append(c.supportedLanguages, dm.Language)
+			c.supportedLanguages = append(c.supportedLanguages, dm.Aliases...)
 		}
 	}
 

session_test.go

@@ -1,6 +1,7 @@
 package gitbase
 
 import (
+	"context"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -17,6 +18,19 @@ func TestSessionBblfshClient(t *testing.T) {
 	require.Equal(connectivity.Ready, cli.GetState())
 }
 
+func TestSupportedLanguagesAliases(t *testing.T) {
+	require := require.New(t)
+
+	session := NewSession(nil, WithBblfshEndpoint(defaultBblfshEndpoint))
+	cli, err := session.BblfshClient()
+	require.NoError(err)
+	require.NotNil(cli)
+	require.Equal(connectivity.Ready, cli.GetState())
+	ok, err := cli.IsLanguageSupported(context.TODO(), "C++")
+	require.NoError(err)
+	require.True(ok)
+}
+
 func TestSessionBblfshClientNoConnection(t *testing.T) {
 	require := require.New(t)