migrate to using enums for connectionType and external_codeHostType

packages/db/prisma/migrations/20251031012851_change_connection_type_to_enum/migration.sql

@@ -0,0 +1,14 @@
+/*
+  Migrates the `connectionType` column from text to a enum. The values in this field are known to
+  be one of the following: github, gitlab, gitea, gerrit, bitbucket, azuredevops, git.
+
+  This is occording to what we would expect to be in a valid config file for the schema version at commit 4899c9fbc755851af2ddcce99f4a4200f2faa4f6.
+  See: https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/schemas/src/v3/connection.type.ts#L3
+*/
+-- CreateEnum
+CREATE TYPE "ConnectionType" AS ENUM ('github', 'gitlab', 'gitea', 'gerrit', 'bitbucket', 'azuredevops', 'git');
+
+-- AlterTable - Convert existing column to enum type without dropping data
+ALTER TABLE "Connection" 
+  ALTER COLUMN "connectionType" TYPE "ConnectionType" 
+  USING "connectionType"::text::"ConnectionType";

packages/db/prisma/migrations/20251031014307_change_repo_code_host_type_to_enum/migration.sql

@@ -0,0 +1,22 @@
+/*
+  Migrates the `external_codeHostType` column from text to a enum. The values in this field are known to
+  be one of the following: github, gitlab, gitea, gerrit, bitbucket-server, bitbucket-cloud, generic-git-host, azuredevops.
+
+  This is occording to what we would expect to be in the database written as of commit 4899c9fbc755851af2ddcce99f4a4200f2faa4f6.
+  See:
+    - https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/backend/src/repoCompileUtils.ts#L57
+    - https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/backend/src/repoCompileUtils.ts#L135
+    - https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/backend/src/repoCompileUtils.ts#L208
+    - https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/backend/src/repoCompileUtils.ts#L291
+    - https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/backend/src/repoCompileUtils.ts#L407
+    - https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/backend/src/repoCompileUtils.ts#L510
+    - https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/backend/src/repoCompileUtils.ts#L574
+    - https://github.com/sourcebot-dev/sourcebot/blob/4899c9fbc755851af2ddcce99f4a4200f2faa4f6/packages/backend/src/repoCompileUtils.ts#L642
+*/
+-- CreateEnum
+CREATE TYPE "CodeHostType" AS ENUM ('github', 'gitlab', 'gitea', 'gerrit', 'bitbucket-server', 'bitbucket-cloud', 'generic-git-host', 'azuredevops');
+
+-- AlterTable - Convert existing column to enum type without dropping data
+ALTER TABLE "Repo" 
+  ALTER COLUMN "external_codeHostType" TYPE "CodeHostType" 
+  USING "external_codeHostType"::text::"CodeHostType";

packages/db/prisma/schema.prisma

@@ -29,6 +29,21 @@ enum ChatVisibility {
   PUBLIC
 }
 
+/// @note: The @map annotation is required to maintain backwards compatibility
+/// with the existing database.
+/// @note: In the generated client, these mapped values will be in pascalCase.
+/// This behaviour will change in prisma v7. See: https://github.com/prisma/prisma/issues/8446#issuecomment-3356119713
+enum CodeHostType {
+  github
+  gitlab
+  gitea
+  gerrit
+  bitbucketServer         @map("bitbucket-server")
+  bitbucketCloud          @map("bitbucket-cloud")
+  genericGitHost          @map("generic-git-host")
+  azuredevops
+}
+
 model Repo {
   id                 Int                    @id @default(autoincrement())
   name               String /// Full repo name, including the vcs hostname (ex. github.com/sourcebot-dev/sourcebot)
@@ -53,7 +68,7 @@ model Repo {
   indexedCommitHash  String? /// The commit hash of the last indexed commit (on HEAD).
 
   external_id           String /// The id of the repo in the external service
-  external_codeHostType String /// The type of the external service (e.g., github, gitlab, etc.)
+  external_codeHostType CodeHostType /// The type of the external service (e.g., github, gitlab, etc.)
   external_codeHostUrl  String /// The base url of the external service (e.g., https://github.com)
 
   org   Org @relation(fields: [orgId], references: [id], onDelete: Cascade)
@@ -125,6 +140,18 @@ model SearchContext {
   @@unique([name, orgId])
 }
 
+/// Matches the union of `type` fields in the schema.
+/// @see: schemas/v3/connection.type.ts
+enum ConnectionType {
+  github
+  gitlab
+  gitea
+  gerrit
+  bitbucket
+  azuredevops
+  git
+}
+
 model Connection {
   id                 Int                  @id @default(autoincrement())
   name               String
@@ -135,7 +162,7 @@ model Connection {
   repos              RepoToConnection[]
 
   // The type of connection (e.g., github, gitlab, etc.)
-  connectionType String
+  connectionType ConnectionType
 
   syncJobs ConnectionSyncJob[]
   /// When the connection was last synced successfully.