yay

.gitignore

@@ -1 +1,2 @@
+/slack-bot-vr
 /spoc-bot-vr

ai.go

@@ -6,6 +6,7 @@ import (
 	"errors"
 	"os"
 
+	nn "github.com/nikolaydubina/llama2.go/exp/nnfast"
 	"github.com/nikolaydubina/llama2.go/llama2"
 )
 
@@ -50,7 +51,86 @@ func (ai AILocal) Do(ctx context.Context, prompt string) (string, error) {
 		return "", err
 	}
 
+	isSharedWeights := config.VocabSize > 0
+	if config.VocabSize < 0 {
+		config.VocabSize = -config.VocabSize
+	}
+
+	tokenizerFile, err := os.OpenFile(ai.tokenizerPath, os.O_RDONLY, 0)
+	if err != nil {
+		return "", err
+	}
+	defer tokenizerFile.Close()
+
+	vocab := llama2.NewVocabFromFile(config.VocabSize, tokenizerFile)
+
+	w := llama2.NewTransformerWeightsFromCheckpoint(config, checkpointFile, isSharedWeights)
+
+	// right now we cannot run for more than config.SeqLen steps
+	steps := ai.steps
+	if steps <= 0 || steps > config.SeqLen {
+		steps = config.SeqLen
+	}
+
+	runState := llama2.NewRunState(config)
+
+	promptTokens := vocab.Encode(prompt)
+
 	out := bytes.NewBuffer(nil)
 
+	// the current position we are in
+	var token int = 1 // 1 = BOS token in llama-2 sentencepiece
+	var pos = 0
+
+	for pos < steps {
+		// forward the transformer to get logits for the next token
+		llama2.Transformer(token, pos, config, runState, w)
+
+		var next int
+		if pos < len(promptTokens) {
+			next = promptTokens[pos]
+		} else {
+			// sample the next token
+			if ai.temperature == 0 {
+				// greedy argmax sampling
+				next = nn.ArgMax(runState.Logits)
+			} else {
+				// apply the temperature to the logits
+				for q := 0; q < config.VocabSize; q++ {
+					runState.Logits[q] /= float32(ai.temperature)
+				}
+				// apply softmax to the logits to the probabilities for next token
+				nn.SoftMax(runState.Logits)
+				// we now want to sample from this distribution to get the next token
+				if ai.topp <= 0 || ai.topp >= 1 {
+					// simply sample from the predicted probability distribution
+					next = nn.Sample(runState.Logits)
+				} else {
+					// top-p (nucleus) sampling, clamping the least likely tokens to zero
+					next = nn.SampleTopP(runState.Logits, float32(ai.topp))
+				}
+			}
+		}
+		pos++
+
+		// data-dependent terminating condition: the BOS (1) token delimits sequences
+		if next == 1 {
+			break
+		}
+
+		// following BOS (1) token, sentencepiece decoder strips any leading whitespace
+		var tokenStr string
+		if token == 1 && vocab.Words[next][0] == ' ' {
+			tokenStr = vocab.Words[next][1:]
+		} else {
+			tokenStr = vocab.Words[next]
+		}
+		out.Write([]byte(tokenStr))
+
+		// advance forward
+		token = next
+	}
+	out.Write([]byte("\n"))
+
 	return string(out.Bytes()), errors.New("not impl")
 }

config.go

@@ -6,7 +6,6 @@ import (
 	"fmt"
 	"os"
 	"regexp"
-	"slices"
 	"strconv"
 	"strings"
 	"time"
@@ -47,8 +46,8 @@ func newConfigFromEnv(ctx context.Context, getEnv func(string) string) (Config,
 	for k, v := range m {
 		envK := k
 		idxes := re.FindAllIndex([]byte(envK), -1)
-		slices.Reverse(idxes)
+		for i := len(idxes) - 1; i >= 0; i-- {
-		for _, idx := range idxes {
+			idx := idxes[i]
 			if idx[0] > 0 {
 				envK = fmt.Sprintf("%s_%s", envK[:idx[0]], envK[idx[0]:])
 			}

go.mod

@@ -4,11 +4,9 @@ go 1.22.1
 
 require (
 	github.com/go-errors/errors v1.5.1
+	github.com/lib/pq v1.10.9
+	github.com/nikolaydubina/llama2.go v0.7.1
 	go.etcd.io/bbolt v1.3.9
 )
 
-require (
+require golang.org/x/sys v0.4.0 // indirect
-	github.com/lib/pq v1.10.9 // indirect
-	github.com/nikolaydubina/llama2.go v0.7.1 // indirect
-	golang.org/x/sys v0.4.0 // indirect
-)

go.sum

@@ -1,10 +1,20 @@
+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/go-errors/errors v1.5.1 h1:ZwEMSLRCapFLflTpT7NKaAc7ukJ8ZPEjzlxt8rPN8bk=
 github.com/go-errors/errors v1.5.1/go.mod h1:sIVyrIiJhuEF+Pj9Ebtd6P/rEYROXFi3BopGUQ5a5Og=
 github.com/lib/pq v1.10.9 h1:YXG7RB+JIjhP29X+OtkiDnYaXQwpS4JEWq7dtCCRUEw=
 github.com/lib/pq v1.10.9/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/nikolaydubina/llama2.go v0.7.1 h1:ORmH1XbwFYGIOPHprkjtUPOEovlVXhnmnMjbMckaSyE=
 github.com/nikolaydubina/llama2.go v0.7.1/go.mod h1:ggXhXOaDnEAgSSkcYsomqx/RLjInxe5ZAbcJ+/Y2mTM=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/testify v1.8.1 h1:w7B6lhMri9wdJUVmEZPGGhZzrYTPvgJArz7wNPgYKsk=
+github.com/stretchr/testify v1.8.1/go.mod h1:w2LPCIKwWwSfY2zedu0+kehJoqGctiVI29o6fzry7u4=
 go.etcd.io/bbolt v1.3.9 h1:8x7aARPEXiXbHmtUwAIv7eV2fQFHrLLavdiJ3uzJXoI=
 go.etcd.io/bbolt v1.3.9/go.mod h1:zaO32+Ti0PK1ivdPtgMESzuzL2VPoIG1PCQNvOdo/dE=
+golang.org/x/sync v0.5.0 h1:60k92dhOjHxJkrqnwsfl8KuaHbn/5dl0lUPUklKo3qE=
+golang.org/x/sync v0.5.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk=
 golang.org/x/sys v0.4.0 h1:Zr2JFtRQNX3BCZ8YtxRE9hNJYC8J6I1MVbMg6owUp18=
 golang.org/x/sys v0.4.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

main.go

@@ -11,7 +11,6 @@ import (
 	"net"
 	"net/http"
 	"os/signal"
-	"slices"
 	"strconv"
 	"strings"
 	"syscall"
@@ -169,7 +168,14 @@ func _newHandlerPostAPIV1EventsSlack(cfg Config) http.HandlerFunc {
 		} else if allowList.Token != cfg.SlackToken {
 			http.Error(w, "invalid .token", http.StatusForbidden)
 			return
-		} else if !slices.Contains(cfg.SlackChannels, allowList.Event.Channel) {
+		} else if !func() bool {
+			for _, slackChannel := range cfg.SlackChannels {
+				if slackChannel == allowList.Event.Channel {
+					return true
+				}
+			}
+			return false
+		}() {
 			return
 		}
 

main_test.go

@@ -11,7 +11,6 @@ import (
 	"net/url"
 	"os"
 	"path"
-	"slices"
 	"strconv"
 	"strings"
 	"testing"
@@ -97,7 +96,7 @@ func TestRun(t *testing.T) {
 		}
 		if err := json.NewDecoder(resp.Body).Decode(&result); err != nil {
 			t.Fatal(err)
-		} else if !slices.Contains(result.Threads, "1712911957.023359") {
+		} else if result.Threads[0] != "1712911957.023359" {
 			t.Fatal(result.Threads)
 		}
 	})

storage_test.go

@@ -2,7 +2,6 @@ package main
 
 import (
 	"context"
-	"slices"
 	"testing"
 	"time"
 )
@@ -30,9 +29,9 @@ func TestStorage(t *testing.T) {
 			t.Error(err)
 		} else if len(threads) != 2 {
 			t.Error(threads)
-		} else if !slices.Contains(threads, "X") {
+		} else if threads[0] != "X" {
 			t.Error(threads, "X")
-		} else if !slices.Contains(threads, "Y") {
+		} else if threads[1] != "Y" {
 			t.Error(threads, "Y")
 		}