Ensure that no new console windows are opened on Windows when executing Tesseract

3 files changed, 33 insertions, 0 deletions

diff --git a/internal/pipeline/pipeline.go b/internal/pipeline/pipeline.go
index b4a9d92..639bba1 100644
--- a/internal/pipeline/pipeline.go
+++ b/internal/pipeline/pipeline.go
@@ -310,6 +310,7 @@ func Ocr(training string, tesscmd string) func(context.Context, chan string, cha
 			logger.Println("OCRing", path)
 			name := strings.Replace(path, ".png", "", 1)
 			cmd := exec.Command(tesscmd, "-l", training, path, name, "-c", "tessedit_create_hocr=1", "-c", "hocr_font_info=0")
+			HideCmd(cmd)
 			var stdout, stderr bytes.Buffer
 			cmd.Stdout = &stdout
 			cmd.Stderr = &stderr
diff --git a/internal/pipeline/util.go b/internal/pipeline/util.go
new file mode 100644
index 0000000..092a9ee
--- /dev/null
+++ b/internal/pipeline/util.go
@@ -0,0 +1,16 @@
+// Copyright 2022 Nick White.
+// Use of this source code is governed by the GPLv3
+// license that can be found in the LICENSE file.
+
+// +build !windows
+
+package pipeline
+
+import (
+	"os/exec"
+)
+
+// HideCmd adds a flag to hide any console window from being
+// displayed, if necessary for the platform
+func HideCmd(cmd *exec.Cmd) {
+}
diff --git a/internal/pipeline/util_windows.go b/internal/pipeline/util_windows.go
new file mode 100644
index 0000000..08c321e
--- /dev/null
+++ b/internal/pipeline/util_windows.go
@@ -0,0 +1,16 @@
+// Copyright 2022 Nick White.
+// Use of this source code is governed by the GPLv3
+// license that can be found in the LICENSE file.
+
+package pipeline
+
+import (
+	"os/exec"
+	"syscall"
+)
+
+// HideCmd adds a flag to hide any console window from being
+// displayed, if necessary for the platform
+func HideCmd(cmd *exec.Cmd) {
+	cmd.SysProcAttr = &syscall.SysProcAttr{HideWindow: true}
+}