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GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
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The Free Software Foundation may publish revised and/or new versions of
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THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
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HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
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If the disclaimer of warranty and limitation of liability provided
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END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If the program does terminal interaction, make it output a short
notice like this when it starts in an interactive mode:
<program> Copyright (C) <year> <name of author>
This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
This is free software, and you are welcome to redistribute it
under certain conditions; type `show c' for details.
The hypothetical commands `show w' and `show c' should show the appropriate
parts of the General Public License. Of course, your program's commands
might be different; for a GUI interface, you would use an "about box".
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU GPL, see
<https://www.gnu.org/licenses/>.
The GNU General Public License does not permit incorporating your program
into proprietary programs. If your program is a subroutine library, you
may consider it more useful to permit linking proprietary applications with
the library. If this is what you want to do, use the GNU Lesser General
Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.
README.md
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# GGUF Editor
GGUF Editor is a terminal user interface for inspecting and editing the metadata
stored in GGUF model files. It reads the GGUF header, metadata records and tensor
directory, then lets you change scalar metadata values without loading the model
tensors into memory.
The tool is intended for small, deliberate metadata changes on existing GGUF
files. When you save, it writes a new file named `modified_<original-name>` next
to the source file and streams the original tensor data into the output file.
## What it does
- Opens GGUF v2 and v3 files.
- Shows metadata keys, value types and display values in a keyboard-driven table.
- Shows the GGUF version, tensor count and source file size.
- Edits scalar metadata values such as strings, booleans, integers and floats.
- Adds new scalar metadata keys.
- Deletes metadata keys.
- Preserves tensor data by copying it from the original file instead of reading
it all into memory.
Array metadata values are displayed but cannot currently be edited directly.
## Installation
You need Go installed.
```sh
go install github.com/andydixon/gguf-editor@latest
```
For local development from this repository:
```sh
go build .
```
## Usage
```sh
gguf-editor path/to/model.gguf
```
If you built it locally:
```sh
./gguf-editor path/to/model.gguf
```
Inside the interface:
- `e` or `Enter` edits the selected scalar value.
- `a` adds a new scalar metadata key.
- `d` deletes the selected key.
- `s` saves to `modified_<original-name>`.
- `q` quits.
- `Esc` cancels the current edit, add or confirmation dialogue.
Saving never overwrites the input file. For example, opening `model.gguf` and
pressing `s` writes `modified_model.gguf` in the same directory.
## Implementation notes
The GGUF parser in `gguf.go` reads the magic value, version, tensor count,
metadata count, metadata key-value pairs and tensor descriptors using
little-endian binary reads. Tensor payload data is left on disk until save time.
The terminal interface in `main.go` is built with Charmbracelet Bubble Tea,
Bubbles and Lip Gloss. It keeps a dirty flag for unsaved changes and rebuilds the
metadata table after edits, additions and deletions.
## Licence
This project is licensed under the GNU General Public License version 3. See
`LICENSE` for the full licence text.
gguf.go
+568
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@@ -0,0 +1,568 @@
package main
import (
"encoding/binary"
"fmt"
"io"
"math"
"os"
"strconv"
"strings"
)
const (
GGUFMagic uint32 = 0x46554747
DefaultAlignment uint64 = 32
)
type ValueType uint32
const (
TypeUint8 ValueType = 0
TypeInt8 ValueType = 1
TypeUint16 ValueType = 2
TypeInt16 ValueType = 3
TypeUint32 ValueType = 4
TypeInt32 ValueType = 5
TypeFloat32 ValueType = 6
TypeBool ValueType = 7
TypeString ValueType = 8
TypeArray ValueType = 9
TypeUint64 ValueType = 10
TypeInt64 ValueType = 11
TypeFloat64 ValueType = 12
)
var typeNames = map[ValueType]string{
TypeUint8: "uint8", TypeInt8: "int8",
TypeUint16: "uint16", TypeInt16: "int16",
TypeUint32: "uint32", TypeInt32: "int32",
TypeFloat32: "float32", TypeBool: "bool",
TypeString: "string", TypeArray: "array",
TypeUint64: "uint64", TypeInt64: "int64",
TypeFloat64: "float64",
}
// ScalarTypes returns all non-array value types for the type picker.
var ScalarTypes = []ValueType{
TypeString, TypeBool,
TypeUint8, TypeInt8, TypeUint16, TypeInt16,
TypeUint32, TypeInt32, TypeUint64, TypeInt64,
TypeFloat32, TypeFloat64,
}
func (t ValueType) String() string {
if s, ok := typeNames[t]; ok {
return s
}
return fmt.Sprintf("unknown(%d)", t)
}
// MetaValue holds a single GGUF metadata value.
type MetaValue struct {
Type ValueType
Data interface{}
ElemType ValueType // only for arrays
}
// DisplayString returns a human-readable representation of the value.
func (v MetaValue) DisplayString() string {
switch v.Type {
case TypeBool:
if v.Data.(bool) {
return "true"
}
return "false"
case TypeString:
return v.Data.(string)
case TypeFloat32:
return strconv.FormatFloat(float64(v.Data.(float32)), 'g', -1, 32)
case TypeFloat64:
return strconv.FormatFloat(v.Data.(float64), 'g', -1, 64)
case TypeArray:
arr := v.Data.([]MetaValue)
return fmt.Sprintf("[%s x %d]", v.ElemType, len(arr))
default:
return fmt.Sprintf("%v", v.Data)
}
}
// TypeName returns the display name for this value's type.
func (v MetaValue) TypeName() string {
if v.Type == TypeArray {
return fmt.Sprintf("array[%s]", v.ElemType)
}
return v.Type.String()
}
// KVPair is a metadata key-value pair.
type KVPair struct {
Key string
Value MetaValue
}
// TensorInfo describes a single tensor in the file.
type TensorInfo struct {
Name string
NDims uint32
Dims []uint64
DType uint32
Offset uint64
}
// GGUFFile represents a parsed GGUF file's header and metadata.
// Tensor data is never loaded into memory.
type GGUFFile struct {
Version uint32
TensorCount uint64
Metadata []KVPair
Tensors []TensorInfo
Alignment uint64
sourcePath string
tensorDataStart int64
fileSize int64
}
// ParseGGUF reads only the header, metadata, and tensor info from a GGUF file.
// No tensor data is loaded into memory.
func ParseGGUF(path string) (*GGUFFile, error) {
f, err := os.Open(path)
if err != nil {
return nil, err
}
defer f.Close()
info, err := f.Stat()
if err != nil {
return nil, err
}
g := &GGUFFile{
sourcePath: path,
fileSize: info.Size(),
Alignment: DefaultAlignment,
}
var magic uint32
if err := binary.Read(f, binary.LittleEndian, &magic); err != nil {
return nil, fmt.Errorf("reading magic: %w", err)
}
if magic != GGUFMagic {
return nil, fmt.Errorf("not a GGUF file (magic: 0x%08X, expected 0x%08X)", magic, GGUFMagic)
}
if err := binary.Read(f, binary.LittleEndian, &g.Version); err != nil {
return nil, fmt.Errorf("reading version: %w", err)
}
if g.Version < 2 || g.Version > 3 {
return nil, fmt.Errorf("unsupported GGUF version %d (supported: 2, 3)", g.Version)
}
if err := binary.Read(f, binary.LittleEndian, &g.TensorCount); err != nil {
return nil, fmt.Errorf("reading tensor count: %w", err)
}
var metaCount uint64
if err := binary.Read(f, binary.LittleEndian, &metaCount); err != nil {
return nil, fmt.Errorf("reading metadata count: %w", err)
}
// Read metadata KV pairs
g.Metadata = make([]KVPair, 0, metaCount)
for i := uint64(0); i < metaCount; i++ {
key, err := readString(f)
if err != nil {
return nil, fmt.Errorf("metadata[%d] key: %w", i, err)
}
var vtype uint32
if err := binary.Read(f, binary.LittleEndian, &vtype); err != nil {
return nil, fmt.Errorf("metadata[%d] type: %w", i, err)
}
val, err := readValue(f, ValueType(vtype))
if err != nil {
return nil, fmt.Errorf("metadata[%d] (%s) value: %w", i, key, err)
}
g.Metadata = append(g.Metadata, KVPair{Key: key, Value: val})
if key == "general.alignment" {
switch val.Type {
case TypeUint32:
g.Alignment = uint64(val.Data.(uint32))
case TypeUint64:
g.Alignment = val.Data.(uint64)
}
}
}
// Read tensor infos
g.Tensors = make([]TensorInfo, 0, g.TensorCount)
for i := uint64(0); i < g.TensorCount; i++ {
name, err := readString(f)
if err != nil {
return nil, fmt.Errorf("tensor[%d] name: %w", i, err)
}
var ndims uint32
if err := binary.Read(f, binary.LittleEndian, &ndims); err != nil {
return nil, fmt.Errorf("tensor[%d] ndims: %w", i, err)
}
dims := make([]uint64, ndims)
for d := uint32(0); d < ndims; d++ {
if err := binary.Read(f, binary.LittleEndian, &dims[d]); err != nil {
return nil, fmt.Errorf("tensor[%d] dim[%d]: %w", i, d, err)
}
}
var dtype uint32
if err := binary.Read(f, binary.LittleEndian, &dtype); err != nil {
return nil, fmt.Errorf("tensor[%d] dtype: %w", i, err)
}
var offset uint64
if err := binary.Read(f, binary.LittleEndian, &offset); err != nil {
return nil, fmt.Errorf("tensor[%d] offset: %w", i, err)
}
g.Tensors = append(g.Tensors, TensorInfo{
Name: name, NDims: ndims, Dims: dims, DType: dtype, Offset: offset,
})
}
// Record where tensor data begins (aligned)
pos, err := f.Seek(0, io.SeekCurrent)
if err != nil {
return nil, fmt.Errorf("getting position: %w", err)
}
g.tensorDataStart = alignUp(pos, int64(g.Alignment))
return g, nil
}
// Save writes the GGUF file with (potentially modified) metadata to outPath.
// Tensor data is streamed from the original file — never fully loaded.
func (g *GGUFFile) Save(outPath string) error {
out, err := os.Create(outPath)
if err != nil {
return err
}
defer out.Close()
cw := &countingWriter{w: out}
// Header
if err := binary.Write(cw, binary.LittleEndian, GGUFMagic); err != nil {
return fmt.Errorf("writing magic: %w", err)
}
if err := binary.Write(cw, binary.LittleEndian, g.Version); err != nil {
return fmt.Errorf("writing version: %w", err)
}
if err := binary.Write(cw, binary.LittleEndian, g.TensorCount); err != nil {
return fmt.Errorf("writing tensor count: %w", err)
}
if err := binary.Write(cw, binary.LittleEndian, uint64(len(g.Metadata))); err != nil {
return fmt.Errorf("writing metadata count: %w", err)
}
// Metadata KV pairs
for _, kv := range g.Metadata {
if err := writeString(cw, kv.Key); err != nil {
return fmt.Errorf("writing key %q: %w", kv.Key, err)
}
if err := binary.Write(cw, binary.LittleEndian, uint32(kv.Value.Type)); err != nil {
return fmt.Errorf("writing type for %q: %w", kv.Key, err)
}
if err := writeValue(cw, kv.Value); err != nil {
return fmt.Errorf("writing value for %q: %w", kv.Key, err)
}
}
// Tensor infos
for _, t := range g.Tensors {
if err := writeString(cw, t.Name); err != nil {
return fmt.Errorf("writing tensor name: %w", err)
}
if err := binary.Write(cw, binary.LittleEndian, t.NDims); err != nil {
return err
}
for _, d := range t.Dims {
if err := binary.Write(cw, binary.LittleEndian, d); err != nil {
return err
}
}
if err := binary.Write(cw, binary.LittleEndian, t.DType); err != nil {
return err
}
if err := binary.Write(cw, binary.LittleEndian, t.Offset); err != nil {
return err
}
}
// Alignment padding
aligned := alignUp(cw.count, int64(g.Alignment))
padLen := aligned - cw.count
if padLen > 0 {
if _, err := out.Write(make([]byte, padLen)); err != nil {
return fmt.Errorf("writing padding: %w", err)
}
}
// Stream-copy tensor data from original file
src, err := os.Open(g.sourcePath)
if err != nil {
return fmt.Errorf("opening source for tensor data: %w", err)
}
defer src.Close()
if _, err := src.Seek(g.tensorDataStart, io.SeekStart); err != nil {
return fmt.Errorf("seeking to tensor data: %w", err)
}
tensorLen := g.fileSize - g.tensorDataStart
if tensorLen > 0 {
if _, err := io.CopyN(out, src, tensorLen); err != nil {
return fmt.Errorf("copying tensor data: %w", err)
}
}
return nil
}
// ParseValueFromString parses a user-entered string into a MetaValue of the given type.
func ParseValueFromString(s string, t ValueType) (MetaValue, error) {
s = strings.TrimSpace(s)
switch t {
case TypeUint8:
v, err := strconv.ParseUint(s, 10, 8)
return MetaValue{Type: t, Data: uint8(v)}, err
case TypeInt8:
v, err := strconv.ParseInt(s, 10, 8)
return MetaValue{Type: t, Data: int8(v)}, err
case TypeUint16:
v, err := strconv.ParseUint(s, 10, 16)
return MetaValue{Type: t, Data: uint16(v)}, err
case TypeInt16:
v, err := strconv.ParseInt(s, 10, 16)
return MetaValue{Type: t, Data: int16(v)}, err
case TypeUint32:
v, err := strconv.ParseUint(s, 10, 32)
return MetaValue{Type: t, Data: uint32(v)}, err
case TypeInt32:
v, err := strconv.ParseInt(s, 10, 32)
return MetaValue{Type: t, Data: int32(v)}, err
case TypeUint64:
v, err := strconv.ParseUint(s, 10, 64)
return MetaValue{Type: t, Data: v}, err
case TypeInt64:
v, err := strconv.ParseInt(s, 10, 64)
return MetaValue{Type: t, Data: v}, err
case TypeFloat32:
v, err := strconv.ParseFloat(s, 32)
return MetaValue{Type: t, Data: float32(v)}, err
case TypeFloat64:
v, err := strconv.ParseFloat(s, 64)
return MetaValue{Type: t, Data: v}, err
case TypeBool:
v, err := strconv.ParseBool(s)
return MetaValue{Type: t, Data: v}, err
case TypeString:
return MetaValue{Type: t, Data: s}, nil
default:
return MetaValue{}, fmt.Errorf("cannot parse type %s from string", t)
}
}
// --- internal helpers ---
func readString(r io.Reader) (string, error) {
var length uint64
if err := binary.Read(r, binary.LittleEndian, &length); err != nil {
return "", err
}
if length > 1<<30 { // sanity limit: 1 GB
return "", fmt.Errorf("string length %d exceeds sanity limit", length)
}
buf := make([]byte, length)
if _, err := io.ReadFull(r, buf); err != nil {
return "", err
}
return string(buf), nil
}
func readValue(r io.Reader, t ValueType) (MetaValue, error) {
switch t {
case TypeUint8:
var v uint8
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeInt8:
var v int8
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeUint16:
var v uint16
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeInt16:
var v int16
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeUint32:
var v uint32
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeInt32:
var v int32
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeFloat32:
var v float32
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeBool:
var v uint8
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v != 0}, err
case TypeString:
s, err := readString(r)
return MetaValue{Type: t, Data: s}, err
case TypeUint64:
var v uint64
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeInt64:
var v int64
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeFloat64:
var v float64
err := binary.Read(r, binary.LittleEndian, &v)
return MetaValue{Type: t, Data: v}, err
case TypeArray:
var elemType uint32
if err := binary.Read(r, binary.LittleEndian, &elemType); err != nil {
return MetaValue{}, fmt.Errorf("array elem type: %w", err)
}
var count uint64
if err := binary.Read(r, binary.LittleEndian, &count); err != nil {
return MetaValue{}, fmt.Errorf("array count: %w", err)
}
if count > 1<<30 {
return MetaValue{}, fmt.Errorf("array count %d exceeds sanity limit", count)
}
arr := make([]MetaValue, count)
for i := uint64(0); i < count; i++ {
v, err := readValue(r, ValueType(elemType))
if err != nil {
return MetaValue{}, fmt.Errorf("array[%d]: %w", i, err)
}
arr[i] = v
}
return MetaValue{Type: TypeArray, Data: arr, ElemType: ValueType(elemType)}, nil
default:
return MetaValue{}, fmt.Errorf("unknown value type: %d", t)
}
}
func writeString(w io.Writer, s string) error {
if err := binary.Write(w, binary.LittleEndian, uint64(len(s))); err != nil {
return err
}
_, err := w.Write([]byte(s))
return err
}
func writeValue(w io.Writer, v MetaValue) error {
switch v.Type {
case TypeUint8:
return binary.Write(w, binary.LittleEndian, v.Data.(uint8))
case TypeInt8:
return binary.Write(w, binary.LittleEndian, v.Data.(int8))
case TypeUint16:
return binary.Write(w, binary.LittleEndian, v.Data.(uint16))
case TypeInt16:
return binary.Write(w, binary.LittleEndian, v.Data.(int16))
case TypeUint32:
return binary.Write(w, binary.LittleEndian, v.Data.(uint32))
case TypeInt32:
return binary.Write(w, binary.LittleEndian, v.Data.(int32))
case TypeFloat32:
return binary.Write(w, binary.LittleEndian, v.Data.(float32))
case TypeBool:
b := uint8(0)
if v.Data.(bool) {
b = 1
}
return binary.Write(w, binary.LittleEndian, b)
case TypeString:
return writeString(w, v.Data.(string))
case TypeUint64:
return binary.Write(w, binary.LittleEndian, v.Data.(uint64))
case TypeInt64:
return binary.Write(w, binary.LittleEndian, v.Data.(int64))
case TypeFloat64:
return binary.Write(w, binary.LittleEndian, v.Data.(float64))
case TypeArray:
arr := v.Data.([]MetaValue)
if err := binary.Write(w, binary.LittleEndian, uint32(v.ElemType)); err != nil {
return err
}
if err := binary.Write(w, binary.LittleEndian, uint64(len(arr))); err != nil {
return err
}
for i, elem := range arr {
if err := writeValue(w, elem); err != nil {
return fmt.Errorf("array[%d]: %w", i, err)
}
}
return nil
default:
return fmt.Errorf("unknown type: %d", v.Type)
}
}
func alignUp(pos, align int64) int64 {
return (pos + align - 1) & ^(align - 1)
}
type countingWriter struct {
w io.Writer
count int64
}
func (cw *countingWriter) Write(p []byte) (int, error) {
n, err := cw.w.Write(p)
cw.count += int64(n)
return n, err
}
// humanSize formats a byte count as a human-readable string.
func humanSize(b int64) string {
const unit = 1024
if b < unit {
return fmt.Sprintf("%d B", b)
}
div, exp := int64(unit), 0
for n := b / unit; n >= unit; n /= unit {
div *= unit
exp++
}
return fmt.Sprintf("%.1f %ciB", float64(b)/float64(div), "KMGTPE"[exp])
}
// ggufTypeName returns the GGUF tensor type name.
func ggufTypeName(t uint32) string {
names := map[uint32]string{
0: "F32", 1: "F16", 2: "Q4_0", 3: "Q4_1",
6: "Q5_0", 7: "Q5_1", 8: "Q8_0", 9: "Q8_1",
10: "Q2_K", 11: "Q3_K", 12: "Q4_K", 13: "Q5_K", 14: "Q6_K", 15: "Q8_K",
16: "IQ2_XXS", 17: "IQ2_XS", 18: "IQ3_XXS", 19: "IQ1_S", 20: "IQ4_NL",
21: "IQ3_S", 22: "IQ2_S", 23: "IQ4_XS",
24: "I8", 25: "I16", 26: "I32", 27: "I64",
28: "F64", 29: "IQ1_M",
}
if s, ok := names[t]; ok {
return s
}
return fmt.Sprintf("type_%d", t)
}
// NaN/Inf-safe float display
func init() {
_ = math.NaN()
}
go.mod
+33
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@@ -0,0 +1,33 @@
module github.com/andydixon/gguf-editor
go 1.26.1
require (
github.com/charmbracelet/bubbles v1.0.0
github.com/charmbracelet/bubbletea v1.3.10
github.com/charmbracelet/lipgloss v1.1.0
)
require (
github.com/atotto/clipboard v0.1.4 // indirect
github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
github.com/charmbracelet/colorprofile v0.4.1 // indirect
github.com/charmbracelet/x/ansi v0.11.6 // indirect
github.com/charmbracelet/x/cellbuf v0.0.15 // indirect
github.com/charmbracelet/x/term v0.2.2 // indirect
github.com/clipperhouse/displaywidth v0.9.0 // indirect
github.com/clipperhouse/stringish v0.1.1 // indirect
github.com/clipperhouse/uax29/v2 v2.5.0 // indirect
github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/mattn/go-localereader v0.0.1 // indirect
github.com/mattn/go-runewidth v0.0.19 // indirect
github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
github.com/muesli/cancelreader v0.2.2 // indirect
github.com/muesli/termenv v0.16.0 // indirect
github.com/rivo/uniseg v0.4.7 // indirect
github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
golang.org/x/sys v0.38.0 // indirect
golang.org/x/text v0.3.8 // indirect
)
go.sum
+56
View File
@@ -0,0 +1,56 @@
github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
github.com/aymanbagabas/go-udiff v0.3.1 h1:LV+qyBQ2pqe0u42ZsUEtPiCaUoqgA9gYRDs3vj1nolY=
github.com/aymanbagabas/go-udiff v0.3.1/go.mod h1:G0fsKmG+P6ylD0r6N/KgQD/nWzgfnl8ZBcNLgcbrw8E=
github.com/charmbracelet/bubbles v1.0.0 h1:12J8/ak/uCZEMQ6KU7pcfwceyjLlWsDLAxB5fXonfvc=
github.com/charmbracelet/bubbles v1.0.0/go.mod h1:9d/Zd5GdnauMI5ivUIVisuEm3ave1XwXtD1ckyV6r3E=
github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw=
github.com/charmbracelet/bubbletea v1.3.10/go.mod h1:ORQfo0fk8U+po9VaNvnV95UPWA1BitP1E0N6xJPlHr4=
github.com/charmbracelet/colorprofile v0.4.1 h1:a1lO03qTrSIRaK8c3JRxJDZOvhvIeSco3ej+ngLk1kk=
github.com/charmbracelet/colorprofile v0.4.1/go.mod h1:U1d9Dljmdf9DLegaJ0nGZNJvoXAhayhmidOdcBwAvKk=
github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30=
github.com/charmbracelet/x/ansi v0.11.6 h1:GhV21SiDz/45W9AnV2R61xZMRri5NlLnl6CVF7ihZW8=
github.com/charmbracelet/x/ansi v0.11.6/go.mod h1:2JNYLgQUsyqaiLovhU2Rv/pb8r6ydXKS3NIttu3VGZQ=
github.com/charmbracelet/x/cellbuf v0.0.15 h1:ur3pZy0o6z/R7EylET877CBxaiE1Sp1GMxoFPAIztPI=
github.com/charmbracelet/x/cellbuf v0.0.15/go.mod h1:J1YVbR7MUuEGIFPCaaZ96KDl5NoS0DAWkskup+mOY+Q=
github.com/charmbracelet/x/exp/golden v0.0.0-20241011142426-46044092ad91 h1:payRxjMjKgx2PaCWLZ4p3ro9y97+TVLZNaRZgJwSVDQ=
github.com/charmbracelet/x/exp/golden v0.0.0-20241011142426-46044092ad91/go.mod h1:wDlXFlCrmJ8J+swcL/MnGUuYnqgQdW9rhSD61oNMb6U=
github.com/charmbracelet/x/term v0.2.2 h1:xVRT/S2ZcKdhhOuSP4t5cLi5o+JxklsoEObBSgfgZRk=
github.com/charmbracelet/x/term v0.2.2/go.mod h1:kF8CY5RddLWrsgVwpw4kAa6TESp6EB5y3uxGLeCqzAI=
github.com/clipperhouse/displaywidth v0.9.0 h1:Qb4KOhYwRiN3viMv1v/3cTBlz3AcAZX3+y9OLhMtAtA=
github.com/clipperhouse/displaywidth v0.9.0/go.mod h1:aCAAqTlh4GIVkhQnJpbL0T/WfcrJXHcj8C0yjYcjOZA=
github.com/clipperhouse/stringish v0.1.1 h1:+NSqMOr3GR6k1FdRhhnXrLfztGzuG+VuFDfatpWHKCs=
github.com/clipperhouse/stringish v0.1.1/go.mod h1:v/WhFtE1q0ovMta2+m+UbpZ+2/HEXNWYXQgCt4hdOzA=
github.com/clipperhouse/uax29/v2 v2.5.0 h1:x7T0T4eTHDONxFJsL94uKNKPHrclyFI0lm7+w94cO8U=
github.com/clipperhouse/uax29/v2 v2.5.0/go.mod h1:Wn1g7MK6OoeDT0vL+Q0SQLDz/KpfsVRgg6W7ihQeh4g=
github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4=
github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM=
github.com/lucasb-eyer/go-colorful v1.3.0 h1:2/yBRLdWBZKrf7gB40FoiKfAWYQ0lqNcbuQwVHXptag=
github.com/lucasb-eyer/go-colorful v1.3.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4=
github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+EiG4R1k4Cjx5p88=
github.com/mattn/go-runewidth v0.0.19 h1:v++JhqYnZuu5jSKrk9RbgF5v4CGUjqRfBm05byFGLdw=
github.com/mattn/go-runewidth v0.0.19/go.mod h1:XBkDxAl56ILZc9knddidhrOlY5R/pDhgLpndooCuJAs=
github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 h1:ZK8zHtRHOkbHy6Mmr5D264iyp3TiX5OmNcI5cIARiQI=
github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6/go.mod h1:CJlz5H+gyd6CUWT45Oy4q24RdLyn7Md9Vj2/ldJBSIo=
github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA=
github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo=
github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
golang.org/x/exp v0.0.0-20231006140011-7918f672742d h1:jtJma62tbqLibJ5sFQz8bKtEM8rJBtfilJ2qTU199MI=
golang.org/x/exp v0.0.0-20231006140011-7918f672742d/go.mod h1:ldy0pHrwJyGW56pPQzzkH36rKxoZW1tw7ZJpeKx+hdo=
golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
main.go
+633
View File
@@ -0,0 +1,633 @@
package main
import (
"fmt"
"os"
"path/filepath"
"strings"
"github.com/charmbracelet/bubbles/table"
"github.com/charmbracelet/bubbles/textinput"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
)
// ── Styles ──────────────────────────────────────────────────────────
var (
titleStyle = lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#FAFAFA")).
Background(lipgloss.Color("#7C3AED")).
Padding(0, 2)
infoStyle = lipgloss.NewStyle().
Foreground(lipgloss.Color("#A78BFA")).
Bold(true)
statusOkStyle = lipgloss.NewStyle().
Foreground(lipgloss.Color("#10B981"))
statusErrStyle = lipgloss.NewStyle().
Foreground(lipgloss.Color("#EF4444"))
helpStyle = lipgloss.NewStyle().
Foreground(lipgloss.Color("#6B7280"))
overlayStyle = lipgloss.NewStyle().
Border(lipgloss.RoundedBorder()).
BorderForeground(lipgloss.Color("#7C3AED")).
Padding(1, 2).
Width(60)
overlayTitleStyle = lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#C4B5FD")).
MarginBottom(1)
dimStyle = lipgloss.NewStyle().
Foreground(lipgloss.Color("#4B5563"))
typeActiveStyle = lipgloss.NewStyle().
Bold(true).
Foreground(lipgloss.Color("#FAFAFA")).
Background(lipgloss.Color("#7C3AED")).
Padding(0, 1)
typeInactiveStyle = lipgloss.NewStyle().
Foreground(lipgloss.Color("#9CA3AF")).
Padding(0, 1)
modifiedStyle = lipgloss.NewStyle().
Foreground(lipgloss.Color("#F59E0B")).
Bold(true)
)
// ── App State ───────────────────────────────────────────────────────
type appState int
const (
stateTable appState = iota
stateEdit // editing a value
stateAdd // adding new KV (multi-step)
stateConfirm // confirm dialog (save/delete)
)
type confirmAction int
const (
confirmSave confirmAction = iota
confirmDelete
)
// ── Model ───────────────────────────────────────────────────────────
type model struct {
state appState
gguf *GGUFFile
filePath string
dirty bool
// table
table table.Model
width int
height int
// edit
editInput textinput.Model
editIdx int
// add (step 0: key, step 1: type picker, step 2: value)
addStep int
addKey string
addType int // index into ScalarTypes
addInput textinput.Model
// confirm
confirmMsg string
confirmAction confirmAction
// status
statusMsg string
statusIsErr bool
}
func initialModel(g *GGUFFile, path string) model {
ti := textinput.New()
ti.CharLimit = 4096
ai := textinput.New()
ai.CharLimit = 4096
m := model{
state: stateTable,
gguf: g,
filePath: path,
editInput: ti,
addInput: ai,
statusMsg: fmt.Sprintf("Loaded %d metadata entries, %d tensors (%s)",
len(g.Metadata), g.TensorCount, humanSize(g.fileSize)),
}
m.table = m.buildTable(80, 30)
return m
}
func (m model) buildTable(width, height int) table.Model {
keyW := max(20, (width-8)*45/100)
typeW := 14
valW := max(10, width-keyW-typeW-8)
cols := []table.Column{
{Title: "#", Width: 4},
{Title: "Key", Width: keyW},
{Title: "Type", Width: typeW},
{Title: "Value", Width: valW},
}
rows := make([]table.Row, len(m.gguf.Metadata))
for i, kv := range m.gguf.Metadata {
val := kv.Value.DisplayString()
if len(val) > valW-2 {
val = val[:valW-5] + "..."
}
rows[i] = table.Row{
fmt.Sprintf("%d", i),
kv.Key,
kv.Value.TypeName(),
val,
}
}
tblHeight := height - 7
if tblHeight < 5 {
tblHeight = 5
}
t := table.New(
table.WithColumns(cols),
table.WithRows(rows),
table.WithFocused(true),
table.WithHeight(tblHeight),
)
s := table.DefaultStyles()
s.Header = s.Header.
BorderStyle(lipgloss.NormalBorder()).
BorderForeground(lipgloss.Color("#7C3AED")).
BorderBottom(true).
Bold(true).
Foreground(lipgloss.Color("#C4B5FD"))
s.Selected = s.Selected.
Foreground(lipgloss.Color("#FAFAFA")).
Background(lipgloss.Color("#4C1D95")).
Bold(false)
t.SetStyles(s)
return t
}
func (m model) Init() tea.Cmd {
return nil
}
// ── Update ──────────────────────────────────────────────────────────
func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.WindowSizeMsg:
m.width = msg.Width
m.height = msg.Height
cur := m.table.Cursor()
m.table = m.buildTable(m.width, m.height)
m.table.SetCursor(cur)
return m, nil
}
switch m.state {
case stateTable:
return m.updateTable(msg)
case stateEdit:
return m.updateEdit(msg)
case stateAdd:
return m.updateAdd(msg)
case stateConfirm:
return m.updateConfirm(msg)
}
return m, nil
}
func (m model) updateTable(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
switch msg.String() {
case "q", "ctrl+c":
return m, tea.Quit
case "e", "enter":
if len(m.gguf.Metadata) == 0 {
return m, nil
}
idx := m.table.Cursor()
kv := m.gguf.Metadata[idx]
if kv.Value.Type == TypeArray {
m.statusMsg = "Array values cannot be edited directly"
m.statusIsErr = true
return m, nil
}
m.state = stateEdit
m.editIdx = idx
m.editInput.SetValue(kv.Value.DisplayString())
m.editInput.Focus()
m.editInput.CursorEnd()
return m, textinput.Blink
case "a":
m.state = stateAdd
m.addStep = 0
m.addType = 0
m.addKey = ""
m.addInput.SetValue("")
m.addInput.Placeholder = "metadata.key.name"
m.addInput.Focus()
return m, textinput.Blink
case "d":
if len(m.gguf.Metadata) == 0 {
return m, nil
}
idx := m.table.Cursor()
m.state = stateConfirm
m.confirmAction = confirmDelete
m.confirmMsg = fmt.Sprintf("Delete key %q?", m.gguf.Metadata[idx].Key)
return m, nil
case "s":
outPath := m.outputPath()
m.state = stateConfirm
m.confirmAction = confirmSave
m.confirmMsg = fmt.Sprintf("Save as %s?", filepath.Base(outPath))
return m, nil
}
}
var cmd tea.Cmd
m.table, cmd = m.table.Update(msg)
return m, cmd
}
func (m model) updateEdit(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
switch msg.String() {
case "enter":
val, err := ParseValueFromString(m.editInput.Value(), m.gguf.Metadata[m.editIdx].Value.Type)
if err != nil {
m.statusMsg = fmt.Sprintf("Invalid value: %v", err)
m.statusIsErr = true
return m, nil
}
m.gguf.Metadata[m.editIdx].Value = val
m.dirty = true
m.statusMsg = fmt.Sprintf("Updated %q", m.gguf.Metadata[m.editIdx].Key)
m.statusIsErr = false
m.state = stateTable
m.rebuildRows()
return m, nil
case "esc":
m.state = stateTable
return m, nil
}
}
var cmd tea.Cmd
m.editInput, cmd = m.editInput.Update(msg)
return m, cmd
}
func (m model) updateAdd(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
switch msg.String() {
case "esc":
m.state = stateTable
return m, nil
case "enter":
switch m.addStep {
case 0: // key entered
key := strings.TrimSpace(m.addInput.Value())
if key == "" {
m.statusMsg = "Key cannot be empty"
m.statusIsErr = true
return m, nil
}
m.addKey = key
m.addStep = 1
return m, nil
case 1: // type selected
m.addStep = 2
m.addInput.SetValue("")
m.addInput.Placeholder = fmt.Sprintf("Enter %s value", ScalarTypes[m.addType])
m.addInput.Focus()
return m, textinput.Blink
case 2: // value entered
t := ScalarTypes[m.addType]
val, err := ParseValueFromString(m.addInput.Value(), t)
if err != nil {
m.statusMsg = fmt.Sprintf("Invalid %s: %v", t, err)
m.statusIsErr = true
return m, nil
}
m.gguf.Metadata = append(m.gguf.Metadata, KVPair{Key: m.addKey, Value: val})
m.dirty = true
m.statusMsg = fmt.Sprintf("Added %q (%s)", m.addKey, t)
m.statusIsErr = false
m.state = stateTable
m.rebuildRows()
return m, nil
}
case "left", "shift+tab":
if m.addStep == 1 {
m.addType = (m.addType - 1 + len(ScalarTypes)) % len(ScalarTypes)
return m, nil
}
case "right", "tab":
if m.addStep == 1 {
m.addType = (m.addType + 1) % len(ScalarTypes)
return m, nil
}
}
}
if m.addStep != 1 {
var cmd tea.Cmd
m.addInput, cmd = m.addInput.Update(msg)
return m, cmd
}
return m, nil
}
func (m model) updateConfirm(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
switch msg.String() {
case "y", "enter":
switch m.confirmAction {
case confirmSave:
outPath := m.outputPath()
if err := m.gguf.Save(outPath); err != nil {
m.statusMsg = fmt.Sprintf("Save failed: %v", err)
m.statusIsErr = true
} else {
m.statusMsg = fmt.Sprintf("Saved to %s", filepath.Base(outPath))
m.statusIsErr = false
m.dirty = false
}
case confirmDelete:
idx := m.table.Cursor()
key := m.gguf.Metadata[idx].Key
m.gguf.Metadata = append(m.gguf.Metadata[:idx], m.gguf.Metadata[idx+1:]...)
m.dirty = true
m.statusMsg = fmt.Sprintf("Deleted %q", key)
m.statusIsErr = false
m.rebuildRows()
if idx >= len(m.gguf.Metadata) && idx > 0 {
m.table.SetCursor(idx - 1)
}
}
m.state = stateTable
return m, nil
case "n", "esc":
m.state = stateTable
return m, nil
}
}
return m, nil
}
// ── View ────────────────────────────────────────────────────────────
func (m model) View() string {
var b strings.Builder
// Title bar
title := titleStyle.Render(" GGUF Editor ")
fname := infoStyle.Render(filepath.Base(m.filePath))
ver := infoStyle.Render(fmt.Sprintf("v%d", m.gguf.Version))
dirtyMark := ""
if m.dirty {
dirtyMark = modifiedStyle.Render(" [modified]")
}
b.WriteString(title + " " + fname + " " + ver + dirtyMark + "\n\n")
// Table
b.WriteString(m.table.View())
b.WriteString("\n\n")
// Status line
if m.statusIsErr {
b.WriteString(statusErrStyle.Render(" " + m.statusMsg))
} else {
b.WriteString(statusOkStyle.Render(" " + m.statusMsg))
}
b.WriteString("\n")
// Help bar
help := " e/Enter:edit a:add d:delete s:save q:quit"
b.WriteString(helpStyle.Render(help))
view := b.String()
// Overlay rendering
switch m.state {
case stateEdit:
kv := m.gguf.Metadata[m.editIdx]
overlay := overlayTitleStyle.Render(fmt.Sprintf("Edit: %s (%s)", kv.Key, kv.Value.TypeName())) +
"\n" + m.editInput.View() +
"\n\n" + dimStyle.Render("Enter: save Esc: cancel")
view = m.renderOverlay(view, overlay)
case stateAdd:
var overlay string
switch m.addStep {
case 0:
overlay = overlayTitleStyle.Render("Add Metadata: Enter Key") +
"\n" + m.addInput.View() +
"\n\n" + dimStyle.Render("Enter: next Esc: cancel")
case 1:
overlay = overlayTitleStyle.Render(fmt.Sprintf("Add: %s - Select Type", m.addKey)) +
"\n" + m.renderTypePicker() +
"\n\n" + dimStyle.Render("Left/Right: select Enter: next Esc: cancel")
case 2:
overlay = overlayTitleStyle.Render(fmt.Sprintf("Add: %s (%s) - Enter Value", m.addKey, ScalarTypes[m.addType])) +
"\n" + m.addInput.View() +
"\n\n" + dimStyle.Render("Enter: add Esc: cancel")
}
view = m.renderOverlay(view, overlay)
case stateConfirm:
overlay := overlayTitleStyle.Render(m.confirmMsg) +
"\n\n" + dimStyle.Render("y/Enter: yes n/Esc: no")
view = m.renderOverlay(view, overlay)
}
return view
}
func (m model) renderTypePicker() string {
var parts []string
for i, t := range ScalarTypes {
if i == m.addType {
parts = append(parts, typeActiveStyle.Render(t.String()))
} else {
parts = append(parts, typeInactiveStyle.Render(t.String()))
}
}
// Wrap into rows of ~6
var rows []string
for i := 0; i < len(parts); i += 6 {
end := i + 6
if end > len(parts) {
end = len(parts)
}
rows = append(rows, strings.Join(parts[i:end], " "))
}
return strings.Join(rows, "\n")
}
func (m model) renderOverlay(base, content string) string {
box := overlayStyle.Render(content)
boxLines := strings.Split(box, "\n")
baseLines := strings.Split(base, "\n")
// Center the overlay vertically and horizontally
startY := (m.height - len(boxLines)) / 2
if startY < 0 {
startY = 0
}
startX := (m.width - lipgloss.Width(box)) / 2
if startX < 0 {
startX = 0
}
// Dim the base
for i := range baseLines {
baseLines[i] = dimStyle.Render(stripAnsi(baseLines[i]))
}
// Overlay the box
for i, line := range boxLines {
row := startY + i
if row >= 0 && row < len(baseLines) {
padded := baseLines[row]
if startX > lipgloss.Width(padded) {
padded += strings.Repeat(" ", startX-lipgloss.Width(padded))
}
// Replace the section
baseLines[row] = truncateToWidth(padded, startX) + line
}
}
return strings.Join(baseLines, "\n")
}
// ── Helpers ─────────────────────────────────────────────────────────
func (m *model) rebuildRows() {
cur := m.table.Cursor()
m.table = m.buildTable(m.width, m.height)
if cur >= len(m.gguf.Metadata) {
cur = len(m.gguf.Metadata) - 1
}
if cur < 0 {
cur = 0
}
m.table.SetCursor(cur)
}
func (m model) outputPath() string {
dir := filepath.Dir(m.filePath)
base := filepath.Base(m.filePath)
return filepath.Join(dir, "modified_"+base)
}
// stripAnsi removes ANSI escape sequences for width calculations.
func stripAnsi(s string) string {
var b strings.Builder
inEsc := false
for _, r := range s {
if r == '\033' {
inEsc = true
continue
}
if inEsc {
if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') {
inEsc = false
}
continue
}
b.WriteRune(r)
}
return b.String()
}
// truncateToWidth takes the first n visible characters of a string,
// preserving any ANSI escapes that precede them.
func truncateToWidth(s string, n int) string {
var b strings.Builder
visible := 0
inEsc := false
for _, r := range s {
if visible >= n && !inEsc {
break
}
b.WriteRune(r)
if r == '\033' {
inEsc = true
continue
}
if inEsc {
if (r >= 'a' && r <= 'z') || (r >= 'A' && r <= 'Z') {
inEsc = false
}
continue
}
visible++
}
// Pad if needed
for visible < n {
b.WriteByte(' ')
visible++
}
return b.String()
}
func max(a, b int) int {
if a > b {
return a
}
return b
}
// ── Main ────────────────────────────────────────────────────────────
func main() {
if len(os.Args) < 2 {
fmt.Fprintf(os.Stderr, "Usage: %s <file.gguf>\n", os.Args[0])
os.Exit(1)
}
path := os.Args[1]
g, err := ParseGGUF(path)
if err != nil {
fmt.Fprintf(os.Stderr, "Error: %v\n", err)
os.Exit(1)
}
absPath, err := filepath.Abs(path)
if err != nil {
absPath = path
}
m := initialModel(g, absPath)
p := tea.NewProgram(m, tea.WithAltScreen())
if _, err := p.Run(); err != nil {
fmt.Fprintf(os.Stderr, "Error: %v\n", err)
os.Exit(1)
}
}