diff options
Diffstat (limited to 'workhorse/cmd/gitlab-resize-image/main.go')
-rw-r--r-- | workhorse/cmd/gitlab-resize-image/main.go | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/workhorse/cmd/gitlab-resize-image/main.go b/workhorse/cmd/gitlab-resize-image/main.go new file mode 100644 index 00000000000..662efd7306d --- /dev/null +++ b/workhorse/cmd/gitlab-resize-image/main.go @@ -0,0 +1,37 @@ +package main + +import ( + "fmt" + "image" + "os" + "strconv" + + "github.com/disintegration/imaging" +) + +func main() { + if err := _main(); err != nil { + fmt.Fprintf(os.Stderr, "%s: fatal: %v\n", os.Args[0], err) + os.Exit(1) + } +} + +func _main() error { + widthParam := os.Getenv("GL_RESIZE_IMAGE_WIDTH") + requestedWidth, err := strconv.Atoi(widthParam) + if err != nil { + return fmt.Errorf("GL_RESIZE_IMAGE_WIDTH: %w", err) + } + + src, formatName, err := image.Decode(os.Stdin) + if err != nil { + return fmt.Errorf("decode: %w", err) + } + imagingFormat, err := imaging.FormatFromExtension(formatName) + if err != nil { + return fmt.Errorf("find imaging format: %w", err) + } + + image := imaging.Resize(src, requestedWidth, 0, imaging.Lanczos) + return imaging.Encode(os.Stdout, image, imagingFormat) +} |