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Add Image Diff for SVG files (#14867)

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* Added type sniffer.

* Switched content detection from base to typesniffer.

* Added GuessContentType to Blob.

* Moved image info logic to client.
Added support for SVG images in diff.

* Restore old blocked svg behaviour.

* Added missing image formats.

* Execute image diff only when container is visible.

* add margin to spinner

* improve BIN tag on image diffs

* Default to render view.

* Show image diff on incomplete diff.

Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: Lauris BH <lauris@nix.lv>
This commit is contained in:
KN4CK3R 2021-06-05 14:32:19 +02:00 • committed by GitHub
parent 7979c3654e
commit 8e262104c2
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GPG key ID: 4AEE18F83AFDEB23
19 changed files with 449 additions and 441 deletions
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13
modules/git/blob.go
View file

@ -10,6 +10,8 @@ import (
"encoding/base64"
"io"
"io/ioutil"
"code.gitea.io/gitea/modules/typesniffer"
)
// This file contains common functions between the gogit and !gogit variants for git Blobs
@ -82,3 +84,14 @@ func (b *Blob) GetBlobContentBase64() (string, error) {
}
return string(out), nil
}
// GuessContentType guesses the content type of the blob.
func (b *Blob) GuessContentType() (typesniffer.SniffedType, error) {
r, err := b.DataAsync()
if err != nil {
return typesniffer.SniffedType{}, err
}
defer r.Close()
return typesniffer.DetectContentTypeFromReader(r)
}

70
modules/git/commit.go
View file

@ -11,13 +11,7 @@ import (
"container/list"
"errors"
"fmt"
"image"
"image/color"
_ "image/gif" // for processing gif images
_ "image/jpeg" // for processing jpeg images
_ "image/png" // for processing png images
"io"
"net/http"
"os/exec"
"strconv"
"strings"
@ -81,70 +75,6 @@ func (c *Commit) ParentCount() int {
return len(c.Parents)
}
func isImageFile(data []byte) (string, bool) {
contentType := http.DetectContentType(data)
if strings.Contains(contentType, "image/") {
return contentType, true
}
return contentType, false
}
// IsImageFile is a file image type
func (c *Commit) IsImageFile(name string) bool {
blob, err := c.GetBlobByPath(name)
if err != nil {
return false
}
dataRc, err := blob.DataAsync()
if err != nil {
return false
}
defer dataRc.Close()
buf := make([]byte, 1024)
n, _ := dataRc.Read(buf)
buf = buf[:n]
_, isImage := isImageFile(buf)
return isImage
}
// ImageMetaData represents metadata of an image file
type ImageMetaData struct {
ColorModel color.Model
Width int
Height int
ByteSize int64
}
// ImageInfo returns information about the dimensions of an image
func (c *Commit) ImageInfo(name string) (*ImageMetaData, error) {
if !c.IsImageFile(name) {
return nil, nil
}
blob, err := c.GetBlobByPath(name)
if err != nil {
return nil, err
}
reader, err := blob.DataAsync()
if err != nil {
return nil, err
}
defer reader.Close()
config, _, err := image.DecodeConfig(reader)
if err != nil {
return nil, err
}
metadata := ImageMetaData{
ColorModel: config.ColorModel,
Width: config.Width,
Height: config.Height,
ByteSize: blob.Size(),
}
return &metadata, nil
}
// GetCommitByPath return the commit of relative path object.
func (c *Commit) GetCommitByPath(relpath string) (*Commit, error) {
return c.repo.getCommitByPathWithID(c.ID, relpath)