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[feature] support processing of (many) more media types (#3090)

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* initial work replacing our media decoding / encoding pipeline with ffprobe + ffmpeg

* specify the video codec to use when generating static image from emoji

* update go-storage library (fixes incompatibility after updating go-iotools)

* maintain image aspect ratio when generating a thumbnail for it

* update readme to show go-ffmpreg

* fix a bunch of media tests, move filesize checking to callers of media manager for more flexibility

* remove extra debug from error message

* fix up incorrect function signatures

* update PutFile to just use regular file copy, as changes are file is on separate partition

* fix remaining tests, remove some unneeded tests now we're working with ffmpeg/ffprobe

* update more tests, add more code comments

* add utilities to generate processed emoji / media outputs

* fix remaining tests

* add test for opus media file, add license header to utility cmds

* limit the number of concurrently available ffmpeg / ffprobe instances

* reduce number of instances

* further reduce number of instances

* fix envparsing test with configuration variables

* update docs and configuration with new media-{local,remote}-max-size variables
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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>.

BIN
vendor/codeberg.org/gruf/go-ffmpreg/embed/ffmpeg/ffmpeg.wasm generated vendored Normal file
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38
vendor/codeberg.org/gruf/go-ffmpreg/embed/ffmpeg/lib.go generated vendored Normal file
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@ -0,0 +1,38 @@
package ffmpeg
import (
_ "embed"
"os"
"github.com/tetratelabs/wazero/api"
"github.com/tetratelabs/wazero/experimental"
)
func init() {
// Check for WASM source file path.
path := os.Getenv("FFMPEG_WASM")
if path == "" {
return
}
var err error
// Read file into memory.
B, err = os.ReadFile(path)
if err != nil {
panic(err)
}
}
// CoreFeatures is the WebAssembly Core specification
// features this embedded binary was compiled with.
const CoreFeatures = api.CoreFeatureSIMD |
api.CoreFeatureBulkMemoryOperations |
api.CoreFeatureNonTrappingFloatToIntConversion |
api.CoreFeatureMutableGlobal |
api.CoreFeatureReferenceTypes |
api.CoreFeatureSignExtensionOps |
experimental.CoreFeaturesThreads
//go:embed ffmpeg.wasm
var B []byte

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vendor/codeberg.org/gruf/go-ffmpreg/embed/ffprobe/ffprobe.wasm generated vendored Normal file
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38
vendor/codeberg.org/gruf/go-ffmpreg/embed/ffprobe/lib.go generated vendored Normal file
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@ -0,0 +1,38 @@
package ffprobe
import (
_ "embed"
"os"
"github.com/tetratelabs/wazero/api"
"github.com/tetratelabs/wazero/experimental"
)
func init() {
// Check for WASM source file path.
path := os.Getenv("FFPROBE_WASM")
if path == "" {
return
}
var err error
// Read file into memory.
B, err = os.ReadFile(path)
if err != nil {
panic(err)
}
}
// CoreFeatures is the WebAssembly Core specification
// features this embedded binary was compiled with.
const CoreFeatures = api.CoreFeatureSIMD |
api.CoreFeatureBulkMemoryOperations |
api.CoreFeatureNonTrappingFloatToIntConversion |
api.CoreFeatureMutableGlobal |
api.CoreFeatureReferenceTypes |
api.CoreFeatureSignExtensionOps |
experimental.CoreFeaturesThreads
//go:embed ffprobe.wasm
var B []byte

109
vendor/codeberg.org/gruf/go-ffmpreg/ffmpeg/ffmpeg.go generated vendored Normal file
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@ -0,0 +1,109 @@
package ffmpeg
import (
"context"
"codeberg.org/gruf/go-ffmpreg/embed/ffmpeg"
"codeberg.org/gruf/go-ffmpreg/internal"
"codeberg.org/gruf/go-ffmpreg/util"
"codeberg.org/gruf/go-ffmpreg/wasm"
"github.com/tetratelabs/wazero"
"github.com/tetratelabs/wazero/api"
"github.com/tetratelabs/wazero/imports/wasi_snapshot_preview1"
)
// pool of WASM module instances.
var pool = wasm.InstancePool{
Instantiator: wasm.Instantiator{
// WASM module name.
Module: "ffmpeg",
// Per-instance WebAssembly runtime (with shared cache).
Runtime: func(ctx context.Context) wazero.Runtime {
// Prepare config with cache.
cfg := wazero.NewRuntimeConfig()
cfg = cfg.WithCoreFeatures(ffmpeg.CoreFeatures)
cfg = cfg.WithCompilationCache(internal.Cache)
// Instantiate runtime with our config.
rt := wazero.NewRuntimeWithConfig(ctx, cfg)
// Prepare default "env" host module.
env := rt.NewHostModuleBuilder("env")
env = env.NewFunctionBuilder().
WithGoModuleFunction(
api.GoModuleFunc(util.Wasm_Tempnam),
[]api.ValueType{api.ValueTypeI32, api.ValueTypeI32},
[]api.ValueType{api.ValueTypeI32},
).
Export("tempnam")
// Instantiate "env" module in our runtime.
_, err := env.Instantiate(context.Background())
if err != nil {
panic(err)
}
// Instantiate the wasi snapshot preview 1 in runtime.
_, err = wasi_snapshot_preview1.Instantiate(ctx, rt)
if err != nil {
panic(err)
}
return rt
},
// Per-run module configuration.
Config: wazero.NewModuleConfig,
// Embedded WASM.
Source: ffmpeg.B,
},
}
// Precompile ensures at least compiled ffmpeg
// instance is available in the global pool.
func Precompile(ctx context.Context) error {
inst, err := pool.Get(ctx)
if err != nil {
return err
}
pool.Put(inst)
return nil
}
// Get fetches new ffmpeg instance from pool, prefering cached if available.
func Get(ctx context.Context) (*wasm.Instance, error) { return pool.Get(ctx) }
// Put places the given ffmpeg instance in pool.
func Put(inst *wasm.Instance) { pool.Put(inst) }
// Run will run the given args against an ffmpeg instance from pool.
func Run(ctx context.Context, args wasm.Args) (uint32, error) {
inst, err := pool.Get(ctx)
if err != nil {
return 0, err
}
rc, err := inst.Run(ctx, args)
pool.Put(inst)
return rc, err
}
// Cached returns a cached instance (if any) from pool.
func Cached() *wasm.Instance { return pool.Cached() }
// Free drops all instances
// cached in instance pool.
func Free() {
ctx := context.Background()
for {
inst := pool.Cached()
if inst == nil {
return
}
_ = inst.Close(ctx)
}
}

108
vendor/codeberg.org/gruf/go-ffmpreg/ffprobe/ffprobe.go generated vendored Normal file
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@ -0,0 +1,108 @@
package ffprobe
import (
"context"
"codeberg.org/gruf/go-ffmpreg/embed/ffprobe"
"codeberg.org/gruf/go-ffmpreg/internal"
"codeberg.org/gruf/go-ffmpreg/util"
"codeberg.org/gruf/go-ffmpreg/wasm"
"github.com/tetratelabs/wazero"
"github.com/tetratelabs/wazero/api"
"github.com/tetratelabs/wazero/imports/wasi_snapshot_preview1"
)
// pool of WASM module instances.
var pool = wasm.InstancePool{
Instantiator: wasm.Instantiator{
// WASM module name.
Module: "ffprobe",
// Per-instance WebAssembly runtime (with shared cache).
Runtime: func(ctx context.Context) wazero.Runtime {
// Prepare config with cache.
cfg := wazero.NewRuntimeConfig()
cfg = cfg.WithCoreFeatures(ffprobe.CoreFeatures)
cfg = cfg.WithCompilationCache(internal.Cache)
// Instantiate runtime with our config.
rt := wazero.NewRuntimeWithConfig(ctx, cfg)
// Prepare default "env" host module.
env := rt.NewHostModuleBuilder("env")
env = env.NewFunctionBuilder().
WithGoModuleFunction(
api.GoModuleFunc(util.Wasm_Tempnam),
[]api.ValueType{api.ValueTypeI32, api.ValueTypeI32},
[]api.ValueType{api.ValueTypeI32},
).
Export("tempnam")
// Instantiate "env" module in our runtime.
_, err := env.Instantiate(context.Background())
if err != nil {
panic(err)
}
// Instantiate the wasi snapshot preview 1 in runtime.
_, err = wasi_snapshot_preview1.Instantiate(ctx, rt)
if err != nil {
panic(err)
}
return rt
},
// Per-run module configuration.
Config: wazero.NewModuleConfig,
// Embedded WASM.
Source: ffprobe.B,
},
}
// Precompile ensures at least compiled ffprobe
// instance is available in the global pool.
func Precompile(ctx context.Context) error {
inst, err := pool.Get(ctx)
if err != nil {
return err
}
pool.Put(inst)
return nil
}
// Get fetches new ffprobe instance from pool, prefering cached if available.
func Get(ctx context.Context) (*wasm.Instance, error) { return pool.Get(ctx) }
// Put places the given ffprobe instance in pool.
func Put(inst *wasm.Instance) { pool.Put(inst) }
// Run will run the given args against an ffprobe instance from pool.
func Run(ctx context.Context, args wasm.Args) (uint32, error) {
inst, err := pool.Get(ctx)
if err != nil {
return 0, err
}
rc, err := inst.Run(ctx, args)
pool.Put(inst)
return rc, err
}
// Cached returns a cached instance (if any) from pool.
func Cached() *wasm.Instance { return pool.Cached() }
// Free drops all instances
// cached in instance pool.
func Free() {
ctx := context.Background()
for {
inst := pool.Cached()
if inst == nil {
return
}
_ = inst.Close(ctx)
}
}

25
vendor/codeberg.org/gruf/go-ffmpreg/internal/wasm.go generated vendored Normal file
View file

@ -0,0 +1,25 @@
package internal
import (
"os"
"github.com/tetratelabs/wazero"
)
func init() {
var err error
if dir := os.Getenv("WAZERO_COMPILATION_CACHE"); dir != "" {
// Use on-filesystem compilation cache given by env.
Cache, err = wazero.NewCompilationCacheWithDir(dir)
if err != nil {
panic(err)
}
} else {
// Use in-memory compilation cache.
Cache = wazero.NewCompilationCache()
}
}
// Shared WASM compilation cache.
var Cache wazero.CompilationCache

65
vendor/codeberg.org/gruf/go-ffmpreg/util/funcs.go generated vendored Normal file
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@ -0,0 +1,65 @@
package util
import (
"context"
"os"
"path"
"strconv"
"time"
"github.com/tetratelabs/wazero/api"
)
// Wasm_Tempnam wraps Go_Tempnam to fulfill wazero's api.GoModuleFunc,
// the argument definition is (i32, i32) and return definition is (i32).
// NOTE: the calling module MUST have access to exported malloc / free.
func Wasm_Tempnam(ctx context.Context, mod api.Module, stack []uint64) {
dirptr := api.DecodeU32(stack[0])
pfxptr := api.DecodeU32(stack[1])
dir := readString(ctx, mod, dirptr, 0)
pfx := readString(ctx, mod, pfxptr, 0)
tmpstr := Go_Tempnam(dir, pfx)
tmpptr := writeString(ctx, mod, tmpstr)
stack[0] = api.EncodeU32(tmpptr)
}
// Go_Tempname is functionally similar to C's tempnam.
func Go_Tempnam(dir, prefix string) string {
now := time.Now().Unix()
prefix = path.Join(dir, prefix)
for i := 0; i < 1000; i++ {
n := murmur2(uint32(now + int64(i)))
name := prefix + strconv.FormatUint(uint64(n), 10)
_, err := os.Stat(name)
if err == nil {
continue
} else if os.IsNotExist(err) {
return name
} else {
panic(err)
}
}
panic("too many attempts")
}
// murmur2 is a simple uint32 murmur2 hash
// impl with fixed seed and input size.
func murmur2(k uint32) (h uint32) {
const (
// seed ^ bitlen
s = uint32(2147483647) ^ 8
M = 0x5bd1e995
R = 24
)
h = s
k *= M
k ^= k >> R
k *= M
h *= M
h ^= k
h ^= h >> 13
h *= M
h ^= h >> 15
return
}

81
vendor/codeberg.org/gruf/go-ffmpreg/util/wasm.go generated vendored Normal file
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@ -0,0 +1,81 @@
package util
import (
"bytes"
"context"
"github.com/tetratelabs/wazero/api"
)
// NOTE:
// the below functions are not very well optimized
// for repeated calls. this is relying on the fact
// that the only place they get used (tempnam), is
// not called very often, should only be once per run
// so calls to ExportedFunction() and Call() instead
// of caching api.Function and using CallWithStack()
// will work out the same (if only called once).
// maxaddr is the maximum
// wasm32 memory address.
const maxaddr = ^uint32(0)
func malloc(ctx context.Context, mod api.Module, sz uint32) uint32 {
stack, err := mod.ExportedFunction("malloc").Call(ctx, uint64(sz))
if err != nil {
panic(err)
}
ptr := api.DecodeU32(stack[0])
if ptr == 0 {
panic("out of memory")
}
return ptr
}
func free(ctx context.Context, mod api.Module, ptr uint32) {
if ptr != 0 {
mod.ExportedFunction("free").Call(ctx, uint64(ptr))
}
}
func view(ctx context.Context, mod api.Module, ptr uint32, n uint32) []byte {
if n == 0 {
n = maxaddr - ptr
}
mem := mod.Memory()
b, ok := mem.Read(ptr, n)
if !ok {
panic("out of range")
}
return b
}
func read(ctx context.Context, mod api.Module, ptr, n uint32) []byte {
return bytes.Clone(view(ctx, mod, ptr, n))
}
func readString(ctx context.Context, mod api.Module, ptr, n uint32) string {
return string(view(ctx, mod, ptr, n))
}
func write(ctx context.Context, mod api.Module, b []byte) uint32 {
mem := mod.Memory()
len := uint32(len(b))
ptr := malloc(ctx, mod, len)
ok := mem.Write(ptr, b)
if !ok {
panic("out of range")
}
return ptr
}
func writeString(ctx context.Context, mod api.Module, str string) uint32 {
mem := mod.Memory()
len := uint32(len(str) + 1)
ptr := malloc(ctx, mod, len)
ok := mem.WriteString(ptr, str)
if !ok {
panic("out of range")
}
return ptr
}

181
vendor/codeberg.org/gruf/go-ffmpreg/wasm/instance.go generated vendored Normal file
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@ -0,0 +1,181 @@
package wasm
import (
"context"
"errors"
"io"
"sync"
"github.com/tetratelabs/wazero"
"github.com/tetratelabs/wazero/sys"
)
type Args struct {
// Standard FDs.
Stdin io.Reader
Stdout io.Writer
Stderr io.Writer
// CLI args.
Args []string
// Optional further module configuration function.
// (e.g. to mount filesystem dir, set env vars, etc).
Config func(wazero.ModuleConfig) wazero.ModuleConfig
}
type Instantiator struct {
// Module ...
Module string
// Runtime ...
Runtime func(context.Context) wazero.Runtime
// Config ...
Config func() wazero.ModuleConfig
// Source ...
Source []byte
}
func (inst *Instantiator) New(ctx context.Context) (*Instance, error) {
switch {
case inst.Module == "":
panic("missing module name")
case inst.Runtime == nil:
panic("missing runtime instantiator")
case inst.Config == nil:
panic("missing module configuration")
case len(inst.Source) == 0:
panic("missing module source")
}
// Create new host runtime.
rt := inst.Runtime(ctx)
// Compile guest module from WebAssembly source.
mod, err := rt.CompileModule(ctx, inst.Source)
if err != nil {
return nil, err
}
return &Instance{
inst: inst,
wzrt: rt,
cmod: mod,
}, nil
}
type InstancePool struct {
Instantiator
pool []*Instance
lock sync.Mutex
}
func (p *InstancePool) Get(ctx context.Context) (*Instance, error) {
for {
// Check for cached.
inst := p.Cached()
if inst == nil {
break
}
// Check if closed.
if inst.IsClosed() {
continue
}
return inst, nil
}
// Must create new instance.
return p.Instantiator.New(ctx)
}
func (p *InstancePool) Put(inst *Instance) {
if inst.inst != &p.Instantiator {
panic("instance and pool instantiators do not match")
}
p.lock.Lock()
p.pool = append(p.pool, inst)
p.lock.Unlock()
}
func (p *InstancePool) Cached() *Instance {
var inst *Instance
p.lock.Lock()
if len(p.pool) > 0 {
inst = p.pool[len(p.pool)-1]
p.pool = p.pool[:len(p.pool)-1]
}
p.lock.Unlock()
return inst
}
// Instance ...
//
// NOTE: Instance is NOT concurrency
// safe. One at a time please!!
type Instance struct {
inst *Instantiator
wzrt wazero.Runtime
cmod wazero.CompiledModule
}
func (inst *Instance) Run(ctx context.Context, args Args) (uint32, error) {
if inst.inst == nil {
panic("not initialized")
}
// Check instance open.
if inst.IsClosed() {
return 0, errors.New("instance closed")
}
// Prefix binary name as argv0 to args.
cargs := make([]string, len(args.Args)+1)
copy(cargs[1:], args.Args)
cargs[0] = inst.inst.Module
// Create base module config.
modcfg := inst.inst.Config()
modcfg = modcfg.WithName(inst.inst.Module)
modcfg = modcfg.WithArgs(cargs...)
modcfg = modcfg.WithStdin(args.Stdin)
modcfg = modcfg.WithStdout(args.Stdout)
modcfg = modcfg.WithStderr(args.Stderr)
if args.Config != nil {
// Pass through config fn.
modcfg = args.Config(modcfg)
}
// Instantiate the module from precompiled wasm module data.
mod, err := inst.wzrt.InstantiateModule(ctx, inst.cmod, modcfg)
if mod != nil {
// Close module.
mod.Close(ctx)
}
// Check for a returned exit code error.
if err, ok := err.(*sys.ExitError); ok {
return err.ExitCode(), nil
}
return 0, err
}
func (inst *Instance) IsClosed() bool {
return (inst.wzrt == nil || inst.cmod == nil)
}
func (inst *Instance) Close(ctx context.Context) error {
if inst.IsClosed() {
return nil
}
err1 := inst.cmod.Close(ctx)
err2 := inst.wzrt.Close(ctx)
return errors.Join(err1, err2)
}

9
vendor/codeberg.org/gruf/go-iotools/close.go generated vendored
View file

@ -2,6 +2,13 @@ package iotools
import "io"
// NopCloser is an empty
// implementation of io.Closer,
// that simply does nothing!
type NopCloser struct{}
func (NopCloser) Close() error { return nil }
// CloserFunc is a function signature which allows
// a function to implement the io.Closer type.
type CloserFunc func() error
@ -10,6 +17,7 @@ func (c CloserFunc) Close() error {
return c()
}
// CloserCallback wraps io.Closer to add a callback deferred to call just after Close().
func CloserCallback(c io.Closer, cb func()) io.Closer {
return CloserFunc(func() error {
defer cb()
@ -17,6 +25,7 @@ func CloserCallback(c io.Closer, cb func()) io.Closer {
})
}
// CloserAfterCallback wraps io.Closer to add a callback called just before Close().
func CloserAfterCallback(c io.Closer, cb func()) io.Closer {
return CloserFunc(func() (err error) {
defer func() { err = c.Close() }()

85
vendor/codeberg.org/gruf/go-iotools/helpers.go generated vendored Normal file
View file

@ -0,0 +1,85 @@
package iotools
import "io"
// AtEOF returns true when reader at EOF,
// this is checked with a 0 length read.
func AtEOF(r io.Reader) bool {
_, err := r.Read(nil)
return (err == io.EOF)
}
// GetReadCloserLimit attempts to cast io.Reader to access its io.LimitedReader with limit.
func GetReaderLimit(r io.Reader) (*io.LimitedReader, int64) {
lr, ok := r.(*io.LimitedReader)
if !ok {
return nil, -1
}
return lr, lr.N
}
// UpdateReaderLimit attempts to update the limit of a reader for existing, newly wrapping if necessary.
func UpdateReaderLimit(r io.Reader, limit int64) (*io.LimitedReader, int64) {
lr, ok := r.(*io.LimitedReader)
if !ok {
lr = &io.LimitedReader{r, limit}
return lr, limit
}
if limit < lr.N {
// Update existing.
lr.N = limit
}
return lr, lr.N
}
// GetReadCloserLimit attempts to unwrap io.ReadCloser to access its io.LimitedReader with limit.
func GetReadCloserLimit(rc io.ReadCloser) (*io.LimitedReader, int64) {
rct, ok := rc.(*ReadCloserType)
if !ok {
return nil, -1
}
lr, ok := rct.Reader.(*io.LimitedReader)
if !ok {
return nil, -1
}
return lr, lr.N
}
// UpdateReadCloserLimit attempts to update the limit of a readcloser for existing, newly wrapping if necessary.
func UpdateReadCloserLimit(rc io.ReadCloser, limit int64) (io.ReadCloser, *io.LimitedReader, int64) {
// Check for our wrapped ReadCloserType.
if rct, ok := rc.(*ReadCloserType); ok {
// Attempt to update existing wrapped limit reader.
if lr, ok := rct.Reader.(*io.LimitedReader); ok {
if limit < lr.N {
// Update existing.
lr.N = limit
}
return rct, lr, lr.N
}
// Wrap the reader type with new limit.
lr := &io.LimitedReader{rct.Reader, limit}
rct.Reader = lr
return rct, lr, lr.N
}
// Wrap separated types.
rct := &ReadCloserType{
Reader: rc,
Closer: rc,
}
// Wrap separated reader part with limit.
lr := &io.LimitedReader{rct.Reader, limit}
rct.Reader = lr
return rct, lr, lr.N
}

21
vendor/codeberg.org/gruf/go-iotools/read.go generated vendored
View file

@ -4,6 +4,16 @@ import (
"io"
)
// ReadCloserType implements io.ReadCloser
// by combining the two underlying interfaces,
// while providing an exported type to still
// access the underlying original io.Reader or
// io.Closer separately (e.g. without wrapping).
type ReadCloserType struct {
io.Reader
io.Closer
}
// ReaderFunc is a function signature which allows
// a function to implement the io.Reader type.
type ReaderFunc func([]byte) (int, error)
@ -22,15 +32,10 @@ func (rf ReaderFromFunc) ReadFrom(r io.Reader) (int64, error) {
// ReadCloser wraps an io.Reader and io.Closer in order to implement io.ReadCloser.
func ReadCloser(r io.Reader, c io.Closer) io.ReadCloser {
return &struct {
io.Reader
io.Closer
}{r, c}
return &ReadCloserType{r, c}
}
// NopReadCloser wraps an io.Reader to implement io.ReadCloser with empty io.Closer implementation.
// NopReadCloser wraps io.Reader with NopCloser{} in ReadCloserType.
func NopReadCloser(r io.Reader) io.ReadCloser {
return ReadCloser(r, CloserFunc(func() error {
return nil
}))
return &ReadCloserType{r, NopCloser{}}
}

25
vendor/codeberg.org/gruf/go-iotools/size.go generated vendored Normal file
View file

@ -0,0 +1,25 @@
package iotools
type Sizer interface {
Size() int64
}
// SizerFunc is a function signature which allows
// a function to implement the Sizer type.
type SizerFunc func() int64
func (s SizerFunc) Size() int64 {
return s()
}
type Lengther interface {
Len() int
}
// LengthFunc is a function signature which allows
// a function to implement the Lengther type.
type LengthFunc func() int
func (l LengthFunc) Len() int {
return l()
}

9
vendor/codeberg.org/gruf/go-iotools/write.go generated vendored
View file

@ -28,7 +28,10 @@ func WriteCloser(w io.Writer, c io.Closer) io.WriteCloser {
// NopWriteCloser wraps an io.Writer to implement io.WriteCloser with empty io.Closer implementation.
func NopWriteCloser(w io.Writer) io.WriteCloser {
return WriteCloser(w, CloserFunc(func() error {
return nil
}))
return &nopWriteCloser{w}
}
// nopWriteCloser implements io.WriteCloser with a no-op Close().
type nopWriteCloser struct{ io.Writer }
func (wc *nopWriteCloser) Close() error { return nil }

5
vendor/codeberg.org/gruf/go-mimetypes/README.md generated vendored Normal file
View file

@ -0,0 +1,5 @@
# go-mimetypes
A generated lookup map of file extensions to mimetypes, from data provided at: https://raw.githubusercontent.com/micnic/mime.json/master/index.json
This allows determining mimetype without relying on OS mimetype lookups.

42
vendor/codeberg.org/gruf/go-mimetypes/get-mime-types.sh generated vendored Normal file
View file

@ -0,0 +1,42 @@
#!/bin/sh
# Mime types JSON source
URL='https://raw.githubusercontent.com/micnic/mime.json/master/index.json'
# Define intro to file
FILE='
// This is an automatically generated file, do not edit
package mimetypes
// MimeTypes is a map of file extensions to mime types.
var MimeTypes = map[string]string{
'
# Set break on new-line
IFS='
'
for line in $(curl -fL "$URL" | grep -E '".+"\s*:\s*".+"'); do
# Trim final whitespace
line=$(echo "$line" | sed -e 's|\s*$||')
# Ensure it ends in a comma
[ "${line%,}" = "$line" ] && line="${line},"
# Add to file
FILE="${FILE}${line}
"
done
# Add final statement to file
FILE="${FILE}
}
"
# Write to file
echo "$FILE" > 'mime.gen.go'
# Check for valid go
gofumpt -w 'mime.gen.go'

1207
vendor/codeberg.org/gruf/go-mimetypes/mime.gen.go generated vendored Normal file
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File diff suppressed because it is too large Load diff

47
vendor/codeberg.org/gruf/go-mimetypes/mime.go generated vendored Normal file
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@ -0,0 +1,47 @@
package mimetypes
import "path"
// PreferredExts defines preferred file
// extensions for input mime types (as there
// can be multiple extensions per mime type).
var PreferredExts = map[string]string{
MimeTypes["mp3"]: "mp3", // audio/mpeg
MimeTypes["mpeg"]: "mpeg", // video/mpeg
}
// GetForFilename returns mimetype for given filename.
func GetForFilename(filename string) (string, bool) {
ext := path.Ext(filename)
if len(ext) < 1 {
return "", false
}
mime, ok := MimeTypes[ext[1:]]
return mime, ok
}
// GetFileExt returns the file extension to use for mimetype. Relying first upon
// the 'PreferredExts' map. It simply returns the first match there may multiple.
func GetFileExt(mimeType string) (string, bool) {
ext, ok := PreferredExts[mimeType]
if ok {
return ext, true
}
for ext, mime := range MimeTypes {
if mime == mimeType {
return ext, true
}
}
return "", false
}
// GetFileExts returns known file extensions used for mimetype.
func GetFileExts(mimeType string) []string {
var exts []string
for ext, mime := range MimeTypes {
if mime == mimeType {
exts = append(exts, ext)
}
}
return exts
}

3
vendor/codeberg.org/gruf/go-storage/memory/memory.go generated vendored
View file

@ -7,7 +7,6 @@ import (
"strings"
"sync"
"codeberg.org/gruf/go-iotools"
"codeberg.org/gruf/go-storage"
"codeberg.org/gruf/go-storage/internal"
@ -93,7 +92,7 @@ func (st *MemoryStorage) ReadStream(ctx context.Context, key string) (io.ReadClo
// Wrap in readcloser.
r := bytes.NewReader(b)
return iotools.NopReadCloser(r), nil
return io.NopCloser(r), nil
}
// WriteBytes: implements Storage.WriteBytes().