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2 Commits

Author SHA1 Message Date
ParthSareen
23e8ac9428 wip? 2025-05-07 19:00:44 -07:00
ParthSareen
611d3a17ed server: add python tool parsing logic 2025-05-02 16:23:54 -07:00
7 changed files with 513 additions and 52 deletions

View File

@@ -34,15 +34,13 @@ func cosineSimilarity[V float32 | float64](v1, v2 []V) V {
func TestAllMiniLMEmbeddings(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
defer cancel()
client, _, cleanup := InitServerConnection(ctx, t)
defer cleanup()
req := api.EmbeddingRequest{
Model: "all-minilm",
Prompt: "why is the sky blue?",
}
res, err := embeddingTestHelper(ctx, client, t, req)
res, err := embeddingTestHelper(ctx, t, req)
if err != nil {
t.Fatalf("error: %v", err)
@@ -64,15 +62,13 @@ func TestAllMiniLMEmbeddings(t *testing.T) {
func TestAllMiniLMEmbed(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
defer cancel()
client, _, cleanup := InitServerConnection(ctx, t)
defer cleanup()
req := api.EmbedRequest{
Model: "all-minilm",
Input: "why is the sky blue?",
}
res, err := embedTestHelper(ctx, client, t, req)
res, err := embedTestHelper(ctx, t, req)
if err != nil {
t.Fatalf("error: %v", err)
@@ -102,15 +98,13 @@ func TestAllMiniLMEmbed(t *testing.T) {
func TestAllMiniLMBatchEmbed(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
defer cancel()
client, _, cleanup := InitServerConnection(ctx, t)
defer cleanup()
req := api.EmbedRequest{
Model: "all-minilm",
Input: []string{"why is the sky blue?", "why is the grass green?"},
}
res, err := embedTestHelper(ctx, client, t, req)
res, err := embedTestHelper(ctx, t, req)
if err != nil {
t.Fatalf("error: %v", err)
@@ -150,8 +144,6 @@ func TestAllMiniLMBatchEmbed(t *testing.T) {
func TestAllMiniLMEmbedTruncate(t *testing.T) {
ctx, cancel := context.WithTimeout(context.Background(), 2*time.Minute)
defer cancel()
client, _, cleanup := InitServerConnection(ctx, t)
defer cleanup()
truncTrue, truncFalse := true, false
@@ -190,7 +182,7 @@ func TestAllMiniLMEmbedTruncate(t *testing.T) {
res := make(map[string]*api.EmbedResponse)
for _, req := range reqs {
response, err := embedTestHelper(ctx, client, t, req.Request)
response, err := embedTestHelper(ctx, t, req.Request)
if err != nil {
t.Fatalf("error: %v", err)
}
@@ -198,7 +190,7 @@ func TestAllMiniLMEmbedTruncate(t *testing.T) {
}
if res["Target Truncation"].Embeddings[0][0] != res["Default Truncate"].Embeddings[0][0] {
t.Fatal("expected default request to truncate correctly. Wanted: ", res["Target Truncation"].Embeddings[0][0], "Got: ", res["Default Truncate"].Embeddings[0][0])
t.Fatal("expected default request to truncate correctly")
}
if res["Default Truncate"].Embeddings[0][0] != res["Explicit Truncate"].Embeddings[0][0] {
@@ -206,7 +198,7 @@ func TestAllMiniLMEmbedTruncate(t *testing.T) {
}
// check that truncate set to false returns an error if context length is exceeded
_, err := embedTestHelper(ctx, client, t, api.EmbedRequest{
_, err := embedTestHelper(ctx, t, api.EmbedRequest{
Model: "all-minilm",
Input: "why is the sky blue?",
Truncate: &truncFalse,
@@ -218,7 +210,9 @@ func TestAllMiniLMEmbedTruncate(t *testing.T) {
}
}
func embeddingTestHelper(ctx context.Context, client *api.Client, t *testing.T, req api.EmbeddingRequest) (*api.EmbeddingResponse, error) {
func embeddingTestHelper(ctx context.Context, t *testing.T, req api.EmbeddingRequest) (*api.EmbeddingResponse, error) {
client, _, cleanup := InitServerConnection(ctx, t)
defer cleanup()
if err := PullIfMissing(ctx, client, req.Model); err != nil {
t.Fatalf("failed to pull model %s: %v", req.Model, err)
}
@@ -232,7 +226,9 @@ func embeddingTestHelper(ctx context.Context, client *api.Client, t *testing.T,
return response, nil
}
func embedTestHelper(ctx context.Context, client *api.Client, t *testing.T, req api.EmbedRequest) (*api.EmbedResponse, error) {
func embedTestHelper(ctx context.Context, t *testing.T, req api.EmbedRequest) (*api.EmbedResponse, error) {
client, _, cleanup := InitServerConnection(ctx, t)
defer cleanup()
if err := PullIfMissing(ctx, client, req.Model); err != nil {
t.Fatalf("failed to pull model %s: %v", req.Model, err)
}

226
server/python_tools.go Normal file
View File

@@ -0,0 +1,226 @@
package server
import (
"fmt"
"regexp"
"strconv"
"strings"
"github.com/ollama/ollama/api"
)
var (
pythonFuncRegex = regexp.MustCompile(`(\w+)\((.*?)\)`)
braces = map[rune]rune{
'[': ']',
'{': '}',
'(': ')',
'"': '"',
'\'': '\'',
}
)
// parsePythonValue converts a Python value string to its appropriate Go type
func parsePythonValue(value string) (any, error) {
value = strings.TrimSpace(value)
// string
if (strings.HasPrefix(value, "\"") && strings.HasSuffix(value, "\"")) ||
(strings.HasPrefix(value, "'") && strings.HasSuffix(value, "'")) {
// Remove quotes
result := value[1 : len(value)-1]
return result, nil
}
// bool
switch strings.ToLower(value) {
case "true":
return true, nil
case "false":
return false, nil
case "none":
return nil, nil
}
// int
if i, err := strconv.Atoi(value); err == nil {
return i, nil
}
// float
if f, err := strconv.ParseFloat(value, 64); err == nil {
return f, nil
}
// list
if strings.HasPrefix(value, "[") && strings.HasSuffix(value, "]") {
listStr := value[1 : len(value)-1]
var list []any
stack := []rune{}
start := 0
for i, char := range listStr {
if len(stack) != 0 && char == braces[stack[len(stack)-1]] {
stack = stack[:len(stack)-1]
} else if _, ok := braces[char]; ok {
stack = append(stack, char)
}
if len(stack) == 0 && (char == ',' || i == len(listStr)-1) {
end := i
if i == len(listStr)-1 {
end = i + 1
}
item := strings.TrimSpace(listStr[start:end])
if val, err := parsePythonValue(item); err == nil {
list = append(list, val)
} else {
return nil, fmt.Errorf("invalid list item: %s", item)
}
start = i + 1
}
}
return list, nil
}
// dictionary
if strings.HasPrefix(value, "{") && strings.HasSuffix(value, "}") && strings.Contains(value, ":") {
dictStr := value[1 : len(value)-1]
dict := make(map[any]any)
stack := []rune{}
start := 0
for i, char := range dictStr {
if len(stack) != 0 && char == braces[stack[len(stack)-1]] {
stack = stack[:len(stack)-1]
} else if _, ok := braces[char]; ok {
stack = append(stack, char)
}
if len(stack) == 0 && (char == ',' || i == len(dictStr)-1) {
end := i
if i == len(dictStr)-1 {
end = i + 1
}
item := strings.TrimSpace(dictStr[start:end])
kv := strings.SplitN(item, ":", 2)
if len(kv) != 2 {
return nil, fmt.Errorf("invalid dictionary key-value pair: %s", item)
}
key, err := parsePythonValue(strings.TrimSpace(kv[0]))
if err != nil {
return nil, fmt.Errorf("invalid dictionary key: %s", kv[0])
}
val, err := parsePythonValue(strings.TrimSpace(kv[1]))
if err != nil {
return nil, fmt.Errorf("invalid dictionary value: %s", kv[1])
}
dict[key] = val
start = i + 1
}
}
return dict, nil
}
// sets (stored as lists)
if strings.HasPrefix(value, "{") && strings.HasSuffix(value, "}") {
setStr := value[1 : len(value)-1]
var list []any
stack := []rune{}
start := 0
for i, char := range setStr {
if len(stack) != 0 && char == braces[stack[len(stack)-1]] {
stack = stack[:len(stack)-1]
} else if _, ok := braces[char]; ok {
stack = append(stack, char)
}
if len(stack) == 0 && (char == ',' || i == len(setStr)-1) {
end := i
if i == len(setStr)-1 {
end = i + 1
}
item := strings.TrimSpace(setStr[start:end])
if val, err := parsePythonValue(item); err == nil {
list = append(list, val)
} else {
return nil, fmt.Errorf("invalid set item: %s", item)
}
start = i + 1
}
}
return list, nil
}
return nil, fmt.Errorf("invalid Python value: %s", value)
}
// parsePythonToolCall parses Python function calls from a string
// it supports keyword arguments, as well as multiple functions in a single string
func parsePythonToolCall(s string) ([]api.ToolCall, error) {
matches := pythonFuncRegex.FindAllStringSubmatchIndex(s, -1)
if len(matches) == 0 {
return nil, fmt.Errorf("no Python function calls found")
}
var toolCalls []api.ToolCall
for _, match := range matches {
name := s[match[2]:match[3]]
args := s[match[4]:match[5]]
var arguments api.ToolCallFunctionArguments
if len(args) == 0 {
toolCalls = append(toolCalls, api.ToolCall{
Function: api.ToolCallFunction{
Name: name,
},
})
continue
}
start := 0
stack := []rune{}
for i, char := range args {
if len(stack) != 0 && char == braces[stack[len(stack)-1]] {
stack = stack[:len(stack)-1]
} else if _, ok := braces[char]; ok {
stack = append(stack, char)
}
if len(stack) == 0 && (char == ',' || i == len(args)-1) {
end := i
if i == len(args)-1 {
end = i + 1
}
kv := strings.SplitN(args[start:end], "=", 2)
if len(kv) == 2 {
key := strings.TrimSpace(kv[0])
valueStr := strings.TrimSpace(kv[1])
// Parse the value into appropriate type
value, err := parsePythonValue(valueStr)
if err != nil {
return nil, fmt.Errorf("failed to parse value for key %q: %v", key, err)
}
arguments[key] = value
} else {
return nil, fmt.Errorf("invalid argument format: %q", args[start:end])
}
start = i + 1
}
}
if len(arguments) > 0 {
toolCalls = append(toolCalls, api.ToolCall{
Function: api.ToolCallFunction{
Name: name,
Arguments: arguments,
},
})
}
}
if len(toolCalls) > 0 {
return toolCalls, nil
}
return nil, fmt.Errorf("failed to parse any valid tool calls")
}

269
server/python_tools_test.go Normal file
View File

@@ -0,0 +1,269 @@
package server
import (
"testing"
"github.com/google/go-cmp/cmp"
"github.com/ollama/ollama/api"
)
func TestParsePythonFunctionCall(t *testing.T) {
t1 := api.ToolCall{
Function: api.ToolCallFunction{
Name: "get_current_weather",
Arguments: api.ToolCallFunctionArguments{
"location": "San Francisco, CA",
"format": "fahrenheit",
},
},
}
t2 := api.ToolCall{
Function: api.ToolCallFunction{
Name: "get_forecast",
Arguments: api.ToolCallFunctionArguments{
"days": 5,
"location": "Seattle",
},
},
}
t3 := api.ToolCall{
Function: api.ToolCallFunction{
Name: "get_current_weather",
Arguments: api.ToolCallFunctionArguments{
"list": []any{1, 2, 3},
"int": -1,
"float": 1.23,
"string": "hello",
},
},
}
t4 := api.ToolCall{
Function: api.ToolCallFunction{
Name: "get_current_weather",
},
}
cases := []struct {
name string
input string
want []api.ToolCall
err bool
}{
{
name: "malformed function call - missing closing paren",
input: "get_current_weather(location=\"San Francisco\"",
err: true,
},
{
name: "empty function call",
input: "get_current_weather()",
want: []api.ToolCall{t4},
err: false,
},
{
name: "single valid function call",
input: "get_current_weather(location=\"San Francisco, CA\", format=\"fahrenheit\")",
want: []api.ToolCall{t1},
},
{
name: "multiple valid function calls",
input: "get_current_weather(location=\"San Francisco, CA\", format=\"fahrenheit\") get_forecast(days=5, location=\"Seattle\")",
want: []api.ToolCall{t1, t2},
},
{
name: "multiple valid function calls with list",
input: "get_current_weather(list=[1,2,3], int=-1, float=1.23, string=\"hello\")",
want: []api.ToolCall{t3},
},
{
name: "positional arguments not supported",
input: "get_current_weather(1, 2, 3)",
err: true,
},
{
name: "invalid argument format without equals",
input: "get_current_weather(\"San Francisco\")",
err: true,
},
{
name: "nested lists",
input: "get_current_weather(data=[[1,2],[3,4]])",
want: []api.ToolCall{{
Function: api.ToolCallFunction{
Name: "get_current_weather",
Arguments: api.ToolCallFunctionArguments{
"data": []any{[]any{1, 2}, []any{3, 4}},
},
},
}},
},
{
name: "boolean and none values",
input: "get_current_weather(active=true, enabled=false, value=None)",
want: []api.ToolCall{{
Function: api.ToolCallFunction{
Name: "get_current_weather",
Arguments: api.ToolCallFunctionArguments{
"active": true,
"enabled": false,
"value": nil,
},
},
}},
},
{
name: "single vs double quotes",
input: "get_current_weather(str1='single', str2=\"double\")",
want: []api.ToolCall{{
Function: api.ToolCallFunction{
Name: "get_current_weather",
Arguments: api.ToolCallFunctionArguments{
"str1": "single",
"str2": "double",
},
},
}},
},
{
name: "whitespace handling",
input: "get_current_weather( location = \"San Francisco\" , temp = 72 )",
want: []api.ToolCall{{
Function: api.ToolCallFunction{
Name: "get_current_weather",
Arguments: api.ToolCallFunctionArguments{
"location": "San Francisco",
"temp": 72,
},
},
}},
},
}
for _, tt := range cases {
t.Run(tt.name, func(t *testing.T) {
got, err := parsePythonToolCall(tt.input)
if (err != nil) != tt.err {
t.Fatalf("expected error: %v, got error: %v", tt.err, err)
}
if tt.err {
return
}
if diff := cmp.Diff(got, tt.want); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
}
}
func TestParsePythonValue(t *testing.T) {
cases := []struct {
name string
input string
want any
err bool
}{
{
name: "string with double quotes",
input: "\"hello\"",
want: "hello",
},
{
name: "string with single quotes",
input: "'world'",
want: "world",
},
{
name: "integer",
input: "42",
want: 42,
},
{
name: "float",
input: "3.14",
want: 3.14,
},
{
name: "boolean true",
input: "True",
want: true,
},
{
name: "boolean false",
input: "False",
want: false,
},
{
name: "none/null",
input: "None",
want: nil,
},
{
name: "simple list",
input: "[1, 2, 3]",
want: []any{1, 2, 3},
},
{
name: "nested list",
input: "[1, [2, 3], 4]",
want: []any{1, []any{2, 3}, 4},
},
{
name: "mixed type list",
input: "[1, \"two\", 3.0, true]",
want: []any{1, "two", 3.0, true},
},
{
name: "invalid list",
input: "[1, 2,",
want: nil,
err: true,
},
{
name: "dictionaries",
input: "{'a': 1, 'b': 2}",
want: map[any]any{"a": 1, "b": 2},
err: false,
},
{
name: "int dictionary",
input: "{1: 2}",
want: map[any]any{1: 2},
err: false,
},
{
name: "mixed type dictionary",
input: "{'a': 1, 'b': 2.0, 'c': True}",
want: map[any]any{"a": 1, "b": 2.0, "c": true},
err: false,
},
{
name: "invalid dictionary - missing closing brace",
input: "{'a': 1, 'b': 2",
want: nil,
err: true,
},
{
name: "sets",
input: "{1, 2, 3}",
want: []any{1, 2, 3},
err: false,
},
}
for _, tt := range cases {
t.Run(tt.name, func(t *testing.T) {
got, err := parsePythonValue(tt.input)
if (err != nil) != tt.err {
t.Fatalf("expected error: %v, got error: %v", tt.err, err)
}
if tt.err {
return
}
if diff := cmp.Diff(got, tt.want); diff != "" {
t.Errorf("mismatch (-got +want):\n%s", diff)
}
})
}
}

View File

@@ -114,16 +114,6 @@ func (s *Server) scheduleRunner(ctx context.Context, name string, caps []model.C
return nil, nil, nil, err
}
// TODO(drifkin): `GetRunner` above changes opts, but we currently pass it by
// value. The following line is a hack to fix this for the now dynaically
// calculated NumCtx, but we should fix this properly (which could have other
// side effects, since perhaps we were relying on the values not being stomped
// on, particularly when NumCtx sometimes represents a numParallel-adjusted
// number and sometimes not)
if opts.NumCtx == -1 {
opts.NumCtx = runner.Options.NumCtx / runner.numParallel
}
return runner.llama, model, &opts, nil
}

View File

@@ -80,12 +80,8 @@ func TestGenerateChat(t *testing.T) {
loadFn: func(req *LlmRequest, _ *ggml.GGML, _ discover.GpuInfoList, _ int) {
// add small delay to simulate loading
time.Sleep(time.Millisecond)
opts := api.DefaultOptions()
opts.NumCtx = 4096
req.successCh <- &runnerRef{
llama: &mock,
numParallel: 1,
Options: &opts,
llama: &mock,
}
},
},
@@ -188,8 +184,7 @@ func TestGenerateChat(t *testing.T) {
t.Run("load model", func(t *testing.T) {
w := createRequest(t, s.ChatHandler, api.ChatRequest{
Model: "test",
Options: map[string]any{"num_ctx": 2048},
Model: "test",
})
if w.Code != http.StatusOK {
@@ -639,9 +634,7 @@ func TestGenerate(t *testing.T) {
// add small delay to simulate loading
time.Sleep(time.Millisecond)
req.successCh <- &runnerRef{
llama: &mock,
Options: &api.Options{},
numParallel: 1,
llama: &mock,
}
},
},
@@ -757,8 +750,7 @@ func TestGenerate(t *testing.T) {
t.Run("load model", func(t *testing.T) {
w := createRequest(t, s.GenerateHandler, api.GenerateRequest{
Model: "test",
Options: map[string]any{"num_ctx": 2048},
Model: "test",
})
if w.Code != http.StatusOK {

View File

@@ -81,9 +81,6 @@ func InitScheduler(ctx context.Context) *Scheduler {
// context must be canceled to decrement ref count and release the runner
func (s *Scheduler) GetRunner(c context.Context, model *Model, opts api.Options, sessionDuration *api.Duration) (chan *runnerRef, chan error) {
if opts.NumCtx != -1 && opts.NumCtx < 4 {
opts.NumCtx = 4
}
req := &LlmRequest{
ctx: c,
model: model,
@@ -588,16 +585,6 @@ func (runner *runnerRef) unload() {
runner.gpus = nil
}
func runnerOptionsEqual(a, b api.Runner) bool {
// if one of the options is -1, then it means it needs to be dynamically calculated
if a.NumCtx == -1 {
a.NumCtx = b.NumCtx
} else if b.NumCtx == -1 {
b.NumCtx = a.NumCtx
}
return reflect.DeepEqual(a, b)
}
func (runner *runnerRef) needsReload(ctx context.Context, req *LlmRequest) bool {
slog.Debug("evaluating already loaded", "model", req.model.ModelPath)
runner.refMu.Lock()
@@ -627,7 +614,7 @@ func (runner *runnerRef) needsReload(ctx context.Context, req *LlmRequest) bool
defer cancel()
if !reflect.DeepEqual(runner.model.AdapterPaths, req.model.AdapterPaths) || // have the adapters changed?
!reflect.DeepEqual(runner.model.ProjectorPaths, req.model.ProjectorPaths) || // have the projectors changed?
!runnerOptionsEqual(optsExisting, optsNew) ||
!reflect.DeepEqual(optsExisting, optsNew) || // have the runner options changed?
runner.llama.Ping(ctx) != nil {
return true
}

View File

@@ -148,6 +148,7 @@ func newScenarioRequest(t *testing.T, ctx context.Context, modelName string, est
successCh: make(chan *runnerRef, 1),
errCh: make(chan error, 1),
}
b.req.opts.NumCtx = 4096
b.srv = &mockLlm{estimatedVRAM: estimatedVRAM, estimatedVRAMByGPU: map[string]uint64{"": estimatedVRAM}}
return b
}