feat: gitea client

GEMINI.md

@@ -0,0 +1,77 @@
+# Pierre Bot
+
+Pierre Bot is an intelligent, AI-powered code review assistant designed for Bitbucket Server/Data Center. It automates the initial pass of code review by analyzing Pull Request diffs and identifying potential bugs, logic errors, and style issues using modern LLMs (Google Gemini 2.0 Flash or Ollama).
+
+## Project Overview
+
+*   **Type:** Go CLI Application
+*   **Core Function:** Fetches PR diffs from Bitbucket -> Sends to LLM -> Prints structured review comments.
+*   **Key Technologies:**
+    *   **Language:** Go (1.25+)
+    *   **AI SDKs:** `google/generative-ai-go`, `ollama/ollama`
+    *   **CLI Framework:** `alecthomas/kong`
+
+## Architecture
+
+The project follows a standard Go project layout:
+
+*   **`cmd/pierre/`**: Contains the `main.go` entry point. It handles configuration parsing (flags, env vars, file), initializes adapters, and orchestrates the application flow.
+*   **`internal/pierre/`**: Contains the core business logic.
+    *   `judge.go`: Defines the `JudgePR` function which prepares the system prompt and context for the LLM.
+*   **`internal/chatter/`**: Abstraction layer for LLM providers.
+    *   `gemini.go`: Implements the `ChatAdapter` interface for Google Gemini. notably includes **dynamic JSON schema generation** via reflection (`schemaFromType`) to enforce structured output from the model.
+    *   `ollama.go`: Implements the `ChatAdapter` for Ollama (local models).
+*   **`internal/gitadapters/`**: Abstraction for Version Control Systems.
+    *   `bitbucket.go`: Client for fetching PR diffs from Bitbucket Server.
+
+## Building and Running
+
+### Prerequisites
+
+*   Go 1.25 or later
+*   Access to a Bitbucket Server instance
+*   API Key for Google Gemini (or a running Ollama instance)
+
+### Build
+
+```bash
+go build -o pierre ./cmd/pierre/main.go
+```
+
+### Configuration
+
+Configuration is handled via `kong` and supports a hierarchy: **Flags > Env Vars > Config File**.
+
+**1. Environment Variables:**
+
+*   `BITBUCKET_URL`: Base URL of the Bitbucket instance.
+*   `BITBUCKET_TOKEN`: Personal Access Token (HTTP) for Bitbucket.
+*   `LLM_PROVIDER`: `gemini` or `ollama`.
+*   `LLM_API_KEY`: API Key for Gemini.
+*   `LLM_MODEL`: Model name (e.g., `gemini-2.0-flash`).
+
+**2. Configuration File (`config.yaml`):**
+
+See `config.example.yaml` for a template. Place it in the current directory or `~/.pierre.yaml`.
+
+### Usage
+
+Run the bot against a specific Pull Request:
+
+```bash
+# Syntax: ./pierre [flags] <PROJECT_KEY> <REPO_SLUG> <PR_ID>
+./pierre --llm-provider=gemini --llm-model=gemini-2.0-flash MYPROJ my-repo 123
+```
+
+## Development Conventions
+
+*   **Structured Output:** The bot relies on the LLM returning valid JSON matching the `Comment` struct. This is enforced in `internal/chatter/gemini.go` by converting the Go struct definition into a `genai.Schema`.
+*   **Dependency Injection:** Adapters (`gitadapters`, `chatter`) are initialized in `main` and passed to the core logic, making testing easier.
+*   **Error Handling:** strict error checks are preferred; the bot will exit if it cannot fetch the diff or initialize the AI.
+
+## Key Files
+
+*   **`cmd/pierre/main.go`**: Application entry point and config wiring.
+*   **`internal/pierre/judge.go`**: The "brain" that constructs the prompt for the AI.
+*   **`internal/chatter/gemini.go`**: Gemini integration logic, including the reflection-based schema generator.
+*   **`config.example.yaml`**: Reference configuration file.

cmd/pierre/main.go

@@ -9,18 +9,26 @@ import (
 
 	"bitbucket.bit.admin.ch/scm/~u80859501/pierre-bot/internal/chatter"
 	"bitbucket.bit.admin.ch/scm/~u80859501/pierre-bot/internal/gitadapters"
+	"bitbucket.bit.admin.ch/scm/~u80859501/pierre-bot/internal/gitadapters/gitea"
 	"bitbucket.bit.admin.ch/scm/~u80859501/pierre-bot/internal/pierre"
 	"github.com/alecthomas/kong"
 	kongyaml "github.com/alecthomas/kong-yaml"
 )
 
 type BitbucketConfig struct {
-	BaseURL string `help:"Bitbucket Base URL (e.g. https://bitbucket.example.com)" required:"" env:"BITBUCKET_URL"`
+	BaseURL string `help:"Bitbucket Base URL (e.g. https://bitbucket.example.com)" env:"BITBUCKET_URL"`
 	Token   string `help:"Bearer Token" env:"BITBUCKET_TOKEN"`
-	// Positional arguments
+}
-	Project string `arg:"" help:"Project Key (e.g. PROJ)" env:"BITBUCKET_PROJECT"`
+
-	Repo    string `arg:"" help:"Repository Slug" env:"BITBUCKET_REPO"`
+type GiteaConfig struct {
-	PRID    int    `arg:"" help:"Pull Request ID" name:"pr"`
+	BaseURL string `help:"Gitea Base URL (e.g. https://gitea.com)" env:"GITEA_URL"`
+	Token   string `help:"API Token" env:"GITEA_TOKEN"`
+}
+
+type RepoArgs struct {
+	Owner string `arg:"" help:"Project Key or Owner" env:"PIERRE_OWNER"`
+	Repo  string `arg:"" help:"Repository Slug" env:"PIERRE_REPO"`
+	PRID  int    `arg:"" help:"Pull Request ID" name:"pr"`
 }
 
 type LLMConfig struct {
@@ -31,9 +39,12 @@ type LLMConfig struct {
 }
 
 type Config struct {
-	Bitbucket BitbucketConfig `embed:"" prefix:"bitbucket-"`
+	GitProvider string          `help:"Git provider (bitbucket or gitea)" env:"GIT_PROVIDER"`
-	LLM       LLMConfig       `embed:"" prefix:"llm-"`
+	Bitbucket   BitbucketConfig `embed:"" prefix:"bitbucket-"`
-	Config    kong.ConfigFlag `help:"Path to a YAML config file"`
+	Gitea       GiteaConfig     `embed:"" prefix:"gitea-"`
+	Repo        RepoArgs        `embed:""`
+	LLM         LLMConfig       `embed:"" prefix:"llm-"`
+	Config      kong.ConfigFlag `help:"Path to a YAML config file"`
 }
 
 func main() {
@@ -46,25 +57,54 @@ func main() {
 	defaultConfig := filepath.Join(home, ".config", "pierre", "config.yaml")
 
 	// Parse flags, env vars, and config files
-	kong.Parse(cfg,
+	ctx := kong.Parse(cfg,
 		kong.Name("pierre"),
-		kong.Description("AI-powered Pull Request reviewer for Bitbucket"),
+		kong.Description("AI-powered Pull Request reviewer"),
 		kong.UsageOnError(),
 		kong.Configuration(kongyaml.Loader, "config.yaml", defaultConfig),
 	)
 
-	// Initialize Bitbucket Adapter
+	// Auto-detect provider
-	bitbucket := gitadapters.NewBitbucket(cfg.Bitbucket.BaseURL, cfg.Bitbucket.Token)
+	provider := cfg.GitProvider
+	if provider == "" {
+		if cfg.Bitbucket.BaseURL != "" && cfg.Gitea.BaseURL == "" {
+			provider = "bitbucket"
+		} else if cfg.Gitea.BaseURL != "" && cfg.Bitbucket.BaseURL == "" {
+			provider = "gitea"
+		} else if cfg.Bitbucket.BaseURL != "" && cfg.Gitea.BaseURL != "" {
+			log.Fatal("Multiple git providers configured. Please specify one using --git-provider.")
+		} else {
+			log.Fatal("No git provider configured. Please provide Bitbucket or Gitea configuration.")
+		}
+	}
 
-	// Fetch Diff using positional args
+	var adapter gitadapters.Adapter
-	diff, err := bitbucket.GetDiff(cfg.Bitbucket.Project, cfg.Bitbucket.Repo, cfg.Bitbucket.PRID)
+	switch provider {
+	case "bitbucket":
+		if cfg.Bitbucket.BaseURL == "" {
+			log.Fatal("Bitbucket Base URL is required when using bitbucket provider.")
+		}
+		adapter = gitadapters.NewBitbucket(cfg.Bitbucket.BaseURL, cfg.Bitbucket.Token)
+	case "gitea":
+		if cfg.Gitea.BaseURL == "" {
+			log.Fatal("Gitea Base URL is required when using gitea provider.")
+		}
+		adapter, err = gitea.New(cfg.Gitea.BaseURL, cfg.Gitea.Token)
+		if err != nil {
+			log.Fatalf("Error initializing Gitea adapter: %v", err)
+		}
+	default:
+		log.Fatalf("Unknown git provider: %s", provider)
+	}
+
+	// Fetch Diff using positional args from shared RepoArgs
+	diff, err := adapter.GetDiff(cfg.Repo.Owner, cfg.Repo.Repo, cfg.Repo.PRID)
 	if err != nil {
 		log.Fatalf("Error fetching diff: %v", err)
 	}
 
 	// Initialize AI Adapter
-
+	var ai chatter.ChatAdapter
-	var ai pierre.ChatAdapter
 
 	switch cfg.LLM.Provider {
 	case "gemini":
@@ -91,4 +131,6 @@ func main() {
 		fmt.Printf("File: %s\nLine: %d\nMessage: %s\n%s\n",
 			c.File, c.Line, c.Message, "---")
 	}
+
+	_ = ctx
 }

config.example.yaml

@@ -1,10 +1,17 @@
+git-provider: "bitbucket" # Optional if only one is configured (bitbucket or gitea)
+
 bitbucket:
   base-url: "https://bitbucket.your-org.ch"
   token: "BMTY4OTU0NjU3OTo..."
-  # Positional defaults (optional)
+
-  project: "APP"
+gitea:
-  repo: "api-gateway"
+  base-url: "https://gitea.com"
-  prid: 45
+  token: "your-gitea-token"
+
+# Shared positional defaults (optional)
+owner: "APP"
+repo: "api-gateway"
+prid: 45
 
 llm:
   provider: "gemini"

go.mod

@@ -3,6 +3,9 @@ module bitbucket.bit.admin.ch/scm/~u80859501/pierre-bot
 go 1.25.0
 
 require (
+	code.gitea.io/sdk/gitea v0.23.2
+	github.com/alecthomas/kong v1.14.0
+	github.com/alecthomas/kong-yaml v0.2.0
 	github.com/google/generative-ai-go v0.20.1
 	github.com/ollama/ollama v0.16.0
 	google.golang.org/api v0.186.0
@@ -15,11 +18,12 @@ require (
 	cloud.google.com/go/auth/oauth2adapt v0.2.2 // indirect
 	cloud.google.com/go/compute/metadata v0.3.0 // indirect
 	cloud.google.com/go/longrunning v0.5.7 // indirect
-	github.com/alecthomas/kong v1.14.0 // indirect
+	github.com/42wim/httpsig v1.2.3 // indirect
-	github.com/alecthomas/kong-yaml v0.2.0 // indirect
 	github.com/bahlo/generic-list-go v0.2.0 // indirect
 	github.com/buger/jsonparser v1.1.1 // indirect
+	github.com/davidmz/go-pageant v1.0.2 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
+	github.com/go-fed/httpsig v1.1.0 // indirect
 	github.com/go-logr/logr v1.4.1 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
@@ -28,7 +32,7 @@ require (
 	github.com/google/uuid v1.6.0 // indirect
 	github.com/googleapis/enterprise-certificate-proxy v0.3.2 // indirect
 	github.com/googleapis/gax-go/v2 v2.12.5 // indirect
-	github.com/invopop/jsonschema v0.13.0 // indirect
+	github.com/hashicorp/go-version v1.7.0 // indirect
 	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/wk8/go-ordered-map/v2 v2.1.8 // indirect
 	go.opencensus.io v0.24.0 // indirect

go.sum

@@ -11,11 +11,19 @@ cloud.google.com/go/compute/metadata v0.3.0 h1:Tz+eQXMEqDIKRsmY3cHTL6FVaynIjX2Qx
 cloud.google.com/go/compute/metadata v0.3.0/go.mod h1:zFmK7XCadkQkj6TtorcaGlCW1hT1fIilQDwofLpJ20k=
 cloud.google.com/go/longrunning v0.5.7 h1:WLbHekDbjK1fVFD3ibpFFVoyizlLRl73I7YKuAKilhU=
 cloud.google.com/go/longrunning v0.5.7/go.mod h1:8GClkudohy1Fxm3owmBGid8W0pSgodEMwEAztp38Xng=
+code.gitea.io/sdk/gitea v0.23.2 h1:iJB1FDmLegwfwjX8gotBDHdPSbk/ZR8V9VmEJaVsJYg=
+code.gitea.io/sdk/gitea v0.23.2/go.mod h1:yyF5+GhljqvA30sRDreoyHILruNiy4ASufugzYg0VHM=
+github.com/42wim/httpsig v1.2.3 h1:xb0YyWhkYj57SPtfSttIobJUPJZB9as1nsfo7KWVcEs=
+github.com/42wim/httpsig v1.2.3/go.mod h1:nZq9OlYKDrUBhptd77IHx4/sZZD+IxTBADvAPI9G/EM=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/alecthomas/assert/v2 v2.11.0 h1:2Q9r3ki8+JYXvGsDyBXwH3LcJ+WK5D0gc5E8vS6K3D0=
+github.com/alecthomas/assert/v2 v2.11.0/go.mod h1:Bze95FyfUr7x34QZrjL+XP+0qgp/zg8yS+TtBj1WA3k=
 github.com/alecthomas/kong v1.14.0 h1:gFgEUZWu2ZmZ+UhyZ1bDhuutbKN1nTtJTwh19Wsn21s=
 github.com/alecthomas/kong v1.14.0/go.mod h1:wrlbXem1CWqUV5Vbmss5ISYhsVPkBb1Yo7YKJghju2I=
 github.com/alecthomas/kong-yaml v0.2.0 h1:iiVVqVttmOsHKawlaW/TljPsjaEv1O4ODx6dloSA58Y=
 github.com/alecthomas/kong-yaml v0.2.0/go.mod h1:vMvOIy+wpB49MCZ0TA3KMts38Mu9YfRP03Q1StN69/g=
+github.com/alecthomas/repr v0.5.2 h1:SU73FTI9D1P5UNtvseffFSGmdNci/O6RsqzeXJtP0Qs=
+github.com/alecthomas/repr v0.5.2/go.mod h1:Fr0507jx4eOXV7AlPV6AVZLYrLIuIeSOWtW57eE/O/4=
 github.com/bahlo/generic-list-go v0.2.0 h1:5sz/EEAK+ls5wF+NeqDpk5+iNdMDXrh3z3nPnH1Wvgk=
 github.com/bahlo/generic-list-go v0.2.0/go.mod h1:2KvAjgMlE5NNynlg/5iLrrCCZ2+5xWbdbCW3pNTGyYg=
 github.com/buger/jsonparser v1.1.1 h1:2PnMjfWD7wBILjqQbt530v576A/cAbQvEW9gGIpYMUs=
@@ -26,12 +34,16 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davidmz/go-pageant v1.0.2 h1:bPblRCh5jGU+Uptpz6LgMZGD5hJoOt7otgT454WvHn0=
+github.com/davidmz/go-pageant v1.0.2/go.mod h1:P2EDDnMqIwG5Rrp05dTRITj9z2zpGcD9efWSkTNKLIE=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
+github.com/go-fed/httpsig v1.1.0 h1:9M+hb0jkEICD8/cAiNqEB66R87tTINszBRTjwjQzWcI=
+github.com/go-fed/httpsig v1.1.0/go.mod h1:RCMrTZvN1bJYtofsG4rd5NaO5obxQ5xBkdiS7xsT7bM=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.4.1 h1:pKouT5E8xu9zeFC39JXRDukb6JFQPXM5p5I91188VAQ=
 github.com/go-logr/logr v1.4.1/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
@@ -72,9 +84,15 @@ github.com/googleapis/enterprise-certificate-proxy v0.3.2 h1:Vie5ybvEvT75RniqhfF
 github.com/googleapis/enterprise-certificate-proxy v0.3.2/go.mod h1:VLSiSSBs/ksPL8kq3OBOQ6WRI2QnaFynd1DCjZ62+V0=
 github.com/googleapis/gax-go/v2 v2.12.5 h1:8gw9KZK8TiVKB6q3zHY3SBzLnrGp6HQjyfYBYGmXdxA=
 github.com/googleapis/gax-go/v2 v2.12.5/go.mod h1:BUDKcWo+RaKq5SC9vVYL0wLADa3VcfswbOMMRmB9H3E=
-github.com/invopop/jsonschema v0.13.0 h1:KvpoAJWEjR3uD9Kbm2HWJmqsEaHt8lBUpd0qHcIi21E=
+github.com/hashicorp/go-version v1.7.0 h1:5tqGy27NaOTB8yJKUZELlFAS/LTKJkrmONwQKeRZfjY=
-github.com/invopop/jsonschema v0.13.0/go.mod h1:ffZ5Km5SWWRAIN6wbDXItl95euhFz2uON45H2qjYt+0=
+github.com/hashicorp/go-version v1.7.0/go.mod h1:fltr4n8CU8Ke44wwGCBoEymUuxUHl09ZGVZPK5anwXA=
+github.com/hexops/gotextdiff v1.0.3 h1:gitA9+qJrrTCsiCl7+kh75nPqQt1cx4ZkudSTLoUqJM=
+github.com/hexops/gotextdiff v1.0.3/go.mod h1:pSWU5MAI3yDq+fZBTazCSJysOMbxWL1BSow5/V2vxeg=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
+github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/mailru/easyjson v0.7.7 h1:UGYAvKxe3sBsEDzO8ZeWOSlIQfWFlxbzLZe7hwFURr0=
 github.com/mailru/easyjson v0.7.7/go.mod h1:xzfreul335JAWq5oZzymOObrkdz5UnU4kGfJJLY9Nlc=
 github.com/ollama/ollama v0.16.0 h1:wDrjgZvx+ej1iYrD//q7crGRA4b4482WZodRYc7oQTI=
@@ -106,6 +124,7 @@ go.opentelemetry.io/otel/trace v1.26.0 h1:1ieeAUb4y0TE26jUFrCIXKpTuVK7uJGN9/Z/2L
 go.opentelemetry.io/otel/trace v1.26.0/go.mod h1:4iDxvGDQuUkHve82hJJ8UqrwswHYsZuWCBllGV2U2y0=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
 golang.org/x/crypto v0.43.0 h1:dduJYIi3A3KOfdGOHX8AVZ/jGiyPa3IbBozJ5kNuE04=
 golang.org/x/crypto v0.43.0/go.mod h1:BFbav4mRNlXJL4wNeejLpWxB7wMbc79PdRGhWKncxR0=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
@@ -118,6 +137,7 @@ golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73r
 golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20201110031124-69a78807bb2b/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
+golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.46.0 h1:giFlY12I07fugqwPuWJi68oOnpfqFnJIJzaIIm2JVV4=
 golang.org/x/net v0.46.0/go.mod h1:Q9BGdFy1y4nkUwiLvT5qtyhAnEHgnQ/zd8PfU6nc210=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
@@ -132,8 +152,10 @@ golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.37.0 h1:fdNQudmxPjkdUTPnLn5mdQv7Zwvbvpaxqs831goi9kQ=
 golang.org/x/sys v0.37.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/term v0.36.0 h1:zMPR+aF8gfksFprF/Nc/rd1wRS1EI6nDBGyWAvDzx2Q=
 golang.org/x/term v0.36.0/go.mod h1:Qu394IJq6V6dCBRgwqshf3mPF85AqzYEzofzRdZkWss=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
@@ -177,9 +199,9 @@ google.golang.org/protobuf v1.23.1-0.20200526195155-81db48ad09cc/go.mod h1:EGpAD
 google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c=
 google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
 google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
+gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

internal/chatter/model.go

@@ -1,5 +1,9 @@
 package chatter
 
+import (
+	"context"
+)
+
 // Role defines who sent the message
 type Role string
 
@@ -15,6 +19,10 @@ type Message struct {
 	Content string
 }
 
+type ChatAdapter interface {
+	GenerateStructured(ctx context.Context, messages []Message, target interface{}) error
+}
+
 // PredictionConfig allows for per-request overrides
 type PredictionConfig struct {
 	Temperature float64

internal/gitadapters/adapter.go

@@ -0,0 +1,7 @@
+package gitadapters
+
+import "io"
+
+type Adapter interface {
+	GetDiff(owner, repo string, prID int) (io.Reader, error)
+}

internal/gitadapters/gitea/adapter.go

@@ -0,0 +1,30 @@
+package gitea
+
+import (
+	"bytes"
+	"io"
+
+	"code.gitea.io/sdk/gitea"
+)
+
+type Adapter struct {
+	client *gitea.Client
+}
+
+func New(baseURL, token string) (*Adapter, error) {
+	client, err := gitea.NewClient(baseURL, gitea.SetToken(token))
+	if err != nil {
+		return nil, err
+	}
+	return &Adapter{
+		client: client,
+	}, nil
+}
+
+func (g *Adapter) GetDiff(owner, repo string, prID int) (io.Reader, error) {
+	diff, _, err := g.client.GetPullRequestDiff(owner, repo, int64(prID), gitea.PullRequestDiffOptions{})
+	if err != nil {
+		return nil, err
+	}
+	return bytes.NewReader(diff), nil
+}

internal/pierre/judge.go

@@ -14,11 +14,7 @@ type Comment struct {
 	Message string `json:"message"`
 }
 
-type ChatAdapter interface {
+func JudgePR(ctx context.Context, chat chatter.ChatAdapter, diff io.Reader) (comments []Comment, err error) {
-	GenerateStructured(ctx context.Context, messages []chatter.Message, target interface{}) error
-}
-
-func JudgePR(ctx context.Context, chat ChatAdapter, diff io.Reader) (comments []Comment, err error) {
 	diffBytes, err := io.ReadAll(diff)
 	if err != nil {
 		return nil, fmt.Errorf("failed to read diff: %w", err)