Beautiful CLI colors and formatting

dangerzone/__init__.py

@@ -1,5 +1,8 @@
 import os
 import sys
+import colorama
+
+colorama.init(autoreset=True)
 
 # Depending on the filename, decide if we want to run:
 # dangerzone, dangerzone-cli, or dangerzone-container

dangerzone/cli.py

@@ -28,7 +28,6 @@ def display_banner(global_common):
     │ https://dangerzone.rocks │
     ╰──────────────────────────╯
     """
-    colorama.init(autoreset=True)
     print(Back.BLACK + Fore.YELLOW + Style.DIM + "╭──────────────────────────╮")
     print(
         Back.BLACK
@@ -185,23 +184,38 @@ def display_banner(global_common):
     print(Back.BLACK + Fore.YELLOW + Style.DIM + "╰──────────────────────────╯")
 
 
+def print_header(s):
+    click.echo("")
+    click.echo(Style.BRIGHT + Fore.LIGHTWHITE_EX + s)
+
+
 def exec_container(global_common, args):
     output = ""
 
     with global_common.exec_dangerzone_container(args) as p:
         for line in p.stdout:
             output += line.decode()
-            print(line.decode(), end="")
+
+            # Hack to add colors to the command executing
+            if line.startswith(b"\xe2\x80\xa3 "):
+                print(
+                    Fore.WHITE + "\u2023 " + Fore.LIGHTCYAN_EX + line.decode()[2:],
+                    end="",
+                )
+            else:
+                print("  " + line.decode(), end="")
 
         stderr = p.stderr.read().decode()
-        print(stderr)
+        if len(stderr) > 0:
+            print("")
+            for line in stderr.strip().split("\n"):
+                print("  " + Style.DIM + line)
 
-    if p.returncode == 126 or p.returncode == 127:
-        click.echo(f"Authorization failed")
-    elif p.returncode == 0:
+    if p.returncode != 0:
         click.echo(f"Return code: {p.returncode}")
+        if p.returncode == 126 or p.returncode == 127:
+            click.echo(f"Authorization failed")
 
-    print("")
     return p.returncode, output, stderr
 
 
@@ -302,13 +316,13 @@ def cli_main(custom_container, safe_pdf_filename, ocr_lang, skip_update, filenam
 
     # Pull the latest image
     if not skip_update:
-        click.echo("Pulling container image (this might take a few minutes)")
+        print_header("Pulling container image (this might take a few minutes)")
         returncode, _, _ = exec_container(global_common, ["pull"])
         if returncode != 0:
             return
 
     # Convert to pixels
-    click.echo("Converting document to pixels")
+    print_header("Converting document to pixels")
     returncode, output, _ = exec_container(
         global_common,
         [
@@ -333,7 +347,7 @@ def cli_main(custom_container, safe_pdf_filename, ocr_lang, skip_update, filenam
         return
 
     # Convert to PDF
-    click.echo("Converting pixels to safe PDF")
+    print_header("Converting pixels to safe PDF")
 
     if ocr_lang:
         ocr = "1"
@@ -364,4 +378,5 @@ def cli_main(custom_container, safe_pdf_filename, ocr_lang, skip_update, filenam
     # Save the safe PDF
     source_filename = f"{common.safe_dir.name}/safe-output-compressed.pdf"
     shutil.move(source_filename, common.save_filename)
-    print(f"Success! {common.save_filename}")
+    print_header("Safe PDF created successfully")
+    click.echo(common.save_filename)

dangerzone/container.py

@@ -3,7 +3,6 @@ import platform
 import subprocess
 import sys
 import pipes
-import getpass
 import shutil
 
 # What is the container runtime for this platform?
@@ -26,8 +25,7 @@ def exec_container(args):
     args = [container_runtime] + args
 
     args_str = " ".join(pipes.quote(s) for s in args)
-    sys.stdout.write(f"Executing: {args_str}\n\n")
-    sys.stdout.flush()
+    print("\u2023 " + args_str)  # ‣
 
     with subprocess.Popen(
         args,

dangerzone/global_common.py

@@ -5,7 +5,7 @@ import appdirs
 import platform
 import subprocess
 import pipes
-from PySide2 import QtCore, QtGui, QtWidgets
+from colorama import Fore, Style
 
 from .settings import Settings
 
@@ -263,7 +263,7 @@ class GlobalCommon(object):
 
         # Execute dangerzone-container
         args_str = " ".join(pipes.quote(s) for s in args)
-        print(f"Executing: {args_str}")
+        print(Fore.YELLOW + "\u2023 " + Fore.CYAN + args_str)  # ‣
         return subprocess.Popen(
             args,
             startupinfo=self.get_subprocess_startupinfo(),
@@ -289,8 +289,9 @@ class GlobalCommon(object):
             ["ls", "--container-name", container_name]
         ) as p:
             stdout_data, _ = p.communicate()
-            if stdout_data.startswith(b"Executing: "):
-                stdout_data = b"\n".join(stdout_data.split(b"\n")[1:])
+            lines = stdout_data.split(b"\n")
+            if b"\u2023 " in lines[0]:  # ‣
+                stdout_data = b"\n".join(lines[1:])
 
             # The user canceled, or permission denied
             if p.returncode == 126 or p.returncode == 127:

dangerzone/gui/tasks.py

@@ -1,8 +1,3 @@
-import subprocess
-import time
-import os
-import pipes
-import platform
 from PySide2 import QtCore, QtWidgets, QtGui
 from colorama import Style