Allow user to override path for each binary used.

config/settings/base.py

@@ -128,11 +128,41 @@
     }
 )
 
-PAPERMERGE_OCR_BINARY = cfg_papermerge.get(
-    "OCR_BINARY",
+BINARY_FILE = cfg_papermerge.get(
+    "BINARY_FILE",
+    "/usr/bin/file"
+)
+
+BINARY_CONVERT = cfg_papermerge.get(
+    "BINARY_CONVERT",
+    "/usr/bin/convert"
+)
+
+BINARY_PDFTOPPM = cfg_papermerge.get(
+    "BINARY_PDFTOPPM",
+    "/usr/bin/pdftoppm"
+)
+
+BINARY_PDFINFO = cfg_papermerge.get(
+    "BINARY_PDFINFO",
+    "/usr/bin/pdfinfo"
+)
+
+BINARY_IDENTIFY = cfg_papermerge.get(
+    "BINARY_IDENTIFY",
+    "/usr/bin/identify"
+)
+
+BINARY_OCR = cfg_papermerge.get(
+    "BINARY_OCR",
     "/usr/bin/tesseract"
 )
 
+BINARY_PDFTK = cfg_papermerge.get(
+    "BINARY_PDFTK",
+    "/usr/bin/pdftk"
+)
+
 AUTH_USER_MODEL = "core.User"
 
 WSGI_APPLICATION = 'config.wsgi.application'

papermerge/core/checks.py

@@ -36,7 +36,11 @@ def binaries_check(app_configs, **kwargs):
     """
 
     msg = {
+        "file": "Without it, Papermerge won't be able to learn file mime type",
+        "convert": "Without it, image resizing is not possible",
+        "pdftoppm": "Without it, it not possible to extract images from PDF",
         "tesseract": "Without it, OCR of the documents is impossible",
+        "identify": "Without it, it is not possible to count pages in TIFF",
         "pdfinfo": "Without it, Papermerge won't function properly",
         "pdftk": "Without it, Papermerge won't be able to cut/paste PDF pages"
     }

requirements/base.txt

@@ -1,4 +1,4 @@
-mglib == 1.2.5
+mglib == 1.2.6
 mgclipboard >= 0.2.0
 django == 3.0.8
 celery==4.4.0