File size: 7,120 Bytes
e089492 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 | package shellconfig
import (
"context"
"fmt"
"io"
"log/slog"
"strings"
)
// handleModel implements the `model` builtin.
//
// Usage:
//
// model add <provider>/<id> [--name NAME] [--context-window N]
// [--default-max-tokens N] [--can-reason true|false]
// [--supports-images true|false] [--price-input F]
// [--price-output F] [--price-cache-create F]
// [--price-cache-hit F] [--reasoning-effort low|medium|high]
// model remove <provider>/<id> (alias: rm)
// model large [<provider>/<id>] [--think] [--reasoning-effort L]
// [--max-tokens N] [--temperature F] [--top-p F] [--top-k N]
// [--frequency-penalty F] [--presence-penalty F]
// [--provider-options JSON]
// model small [<provider>/<id>] [...]
//
// "add" registers a model on an existing provider (the provider must have
// been declared with `provider add` first). "remove" removes it. "large" and
// "small" set the selected model for that slot, or print the current
// selection as <provider>/<id> when given no argument.
func handleModel(ctx context.Context, args []string, stdin io.Reader, stdout, stderr io.Writer) error {
b := configBuilderFromCtx(ctx)
if b == nil {
return nil
}
if len(args) < 2 {
return usage(stderr, "usage: model add|remove <provider>/<id> | model large|small [<provider>/<id>]")
}
switch args[1] {
case "add":
return modelAdd(b, args, stderr)
case "remove", "rm":
return modelRemove(b, args, stderr)
case "large", "small":
return modelSelect(b, args, stdout, stderr)
default:
return usage(stderr, fmt.Sprintf("model: unknown subcommand %q (expected add, remove, large, or small)", args[1]))
}
}
// splitProviderModel splits "provider/id" on the first slash. Model ids may
// themselves contain slashes, so only the first separates provider from id.
func splitProviderModel(s string) (provider, id string, ok bool) {
provider, id, found := strings.Cut(s, "/")
if !found || provider == "" || id == "" {
return "", "", false
}
return provider, id, true
}
// modelAddFlags is the declarative flag surface for `model add`.
var modelAddFlags = []flagSpec{
{name: "--name", jsonKey: "name", kind: flagString, op: opSet},
{name: "--context-window", jsonKey: "context_window", kind: flagInt, op: opSet},
{name: "--default-max-tokens", jsonKey: "default_max_tokens", kind: flagInt, op: opSet},
{name: "--can-reason", jsonKey: "can_reason", kind: flagBool, op: opSet},
{name: "--supports-images", jsonKey: "supports_attachments", kind: flagBool, op: opSet},
{name: "--price-input", jsonKey: "cost_per_1m_in", kind: flagFloat, op: opSet},
{name: "--price-output", jsonKey: "cost_per_1m_out", kind: flagFloat, op: opSet},
{name: "--price-cache-create", jsonKey: "cost_per_1m_in_cached", kind: flagFloat, op: opSet},
{name: "--price-cache-hit", jsonKey: "cost_per_1m_out_cached", kind: flagFloat, op: opSet},
{name: "--reasoning-effort", jsonKey: "default_reasoning_effort", kind: flagString, op: opSet},
}
func modelAdd(b *ConfigBuilder, args []string, stderr io.Writer) error {
if len(args) < 3 {
return usage(stderr, "usage: model add <provider>/<id> [--name NAME] [--context-window N] [--default-max-tokens N] [--can-reason true|false] [--supports-images true|false] [--price-input F] [--price-output F] [--price-cache-create F] [--price-cache-hit F] [--reasoning-effort low|medium|high]")
}
provider, id, ok := splitProviderModel(args[2])
if !ok {
return usage(stderr, fmt.Sprintf("model add: expected <provider>/<id>, got %q", args[2]))
}
providers := b.section("providers")
if _, exists := providers[provider]; !exists {
return usage(stderr, fmt.Sprintf("model add: provider %q does not exist (declare it with `provider add %s` first)", provider, provider))
}
model := map[string]any{"id": id}
if err := applyFlags(modelAddFlags, args, 3, model, "model add", stderr); err != nil {
return err
}
p := childMap(providers, provider)
// Re-adding a model id replaces the existing entry, matching the
// update-in-place behavior of `provider add` and `lsp add`.
modelsArr, _ := p["models"].([]any)
kept := make([]any, 0, len(modelsArr)+1)
for _, item := range modelsArr {
if m, ok := item.(map[string]any); ok && m["id"] == id {
continue
}
kept = append(kept, item)
}
p["models"] = append(kept, model)
slog.Info("Model added in shell config", "provider", provider, "model", id)
return nil
}
func modelRemove(b *ConfigBuilder, args []string, stderr io.Writer) error {
if len(args) < 3 {
return usage(stderr, "usage: model remove <provider>/<id>")
}
provider, id, ok := splitProviderModel(args[2])
if !ok {
return usage(stderr, fmt.Sprintf("model remove: expected <provider>/<id>, got %q", args[2]))
}
providers := b.section("providers")
p, exists := providers[provider].(map[string]any)
if !exists {
return nil
}
modelsArr, _ := p["models"].([]any)
kept := make([]any, 0, len(modelsArr))
for _, item := range modelsArr {
m, ok := item.(map[string]any)
if ok && m["id"] == id {
continue
}
kept = append(kept, item)
}
p["models"] = kept
slog.Info("Model removed in shell config", "provider", provider, "model", id)
return nil
}
// modelSelectFlags is the declarative flag surface for `model large`/`small`.
var modelSelectFlags = []flagSpec{
{name: "--think", jsonKey: "think", kind: flagBoolTrue, op: opSet},
{name: "--reasoning-effort", jsonKey: "reasoning_effort", kind: flagString, op: opSet},
{name: "--max-tokens", jsonKey: "max_tokens", kind: flagInt, op: opSet},
{name: "--temperature", jsonKey: "temperature", kind: flagFloat, op: opSet},
{name: "--top-p", jsonKey: "top_p", kind: flagFloat, op: opSet, validate: func(v any) error {
f := v.(float64)
if f < 0 || f > 1 {
return fmt.Errorf("--top-p expects a value between 0 and 1, got %v", f)
}
return nil
}},
{name: "--top-k", jsonKey: "top_k", kind: flagInt, op: opSet},
{name: "--frequency-penalty", jsonKey: "frequency_penalty", kind: flagFloat, op: opSet},
{name: "--presence-penalty", jsonKey: "presence_penalty", kind: flagFloat, op: opSet},
{name: "--provider-options", child: "provider_options", kind: flagJSONObject, op: opMergeChild},
}
func modelSelect(b *ConfigBuilder, args []string, stdout, stderr io.Writer) error {
slot := args[1]
// No argument: print the current selection as <provider>/<id>.
if len(args) == 2 {
if models, ok := b.root["models"].(map[string]any); ok {
if sel, ok := models[slot].(map[string]any); ok {
provider, _ := sel["provider"].(string)
id, _ := sel["model"].(string)
if provider != "" && id != "" {
fmt.Fprintln(stdout, provider+"/"+id)
}
}
}
return nil
}
provider, id, ok := splitProviderModel(args[2])
if !ok {
return usage(stderr, fmt.Sprintf("model %s: expected <provider>/<id>, got %q", slot, args[2]))
}
sel := childMap(b.section("models"), slot)
sel["provider"] = provider
sel["model"] = id
if err := applyFlags(modelSelectFlags, args, 3, sel, "model "+slot, stderr); err != nil {
return err
}
slog.Info("Model selected in shell config", "slot", slot, "provider", provider, "model", id)
return nil
}
|