Automatic release update warnings. (#1336)

* Hide pretty help

* Automatic release update warnings.

* `httpie cli check-updates`

* adapt to the new loglevel construct

* Don't make the pie-colors the bold

* Apply review feedback.

Co-authored-by: Jakub Roztocil <jakub@roztocil.co>

httpie/manager/cli.py

@@ -24,6 +24,9 @@ COMMANDS = {
                 'default': 'json'
             }
         ],
+        'check-updates': [
+            'Check for updates'
+        ],
         'sessions': {
             'help': 'Manage HTTPie sessions',
             'upgrade': [

httpie/manager/tasks/__init__.py

@@ -1,9 +1,11 @@
 from httpie.manager.tasks.sessions import cli_sessions
 from httpie.manager.tasks.export_args import cli_export_args
 from httpie.manager.tasks.plugins import cli_plugins
+from httpie.manager.tasks.check_updates import cli_check_updates
 
 CLI_TASKS = {
     'sessions': cli_sessions,
     'export-args': cli_export_args,
     'plugins': cli_plugins,
+    'check-updates': cli_check_updates
 }

httpie/manager/tasks/check_updates.py

@@ -0,0 +1,10 @@
+import argparse
+from httpie.context import Environment
+from httpie.status import ExitStatus
+from httpie.internal.update_warnings import fetch_updates, get_update_status
+
+
+def cli_check_updates(env: Environment, args: argparse.Namespace) -> ExitStatus:
+    fetch_updates(env, lazy=False)
+    env.stdout.write(get_update_status(env))
+    return ExitStatus.SUCCESS

httpie/manager/tasks/sessions.py

@@ -1,11 +1,11 @@
 import argparse
-from typing import Tuple
 
 from httpie.sessions import SESSIONS_DIR_NAME, get_httpie_session
 from httpie.status import ExitStatus
 from httpie.context import Environment
 from httpie.legacy import v3_1_0_session_cookie_format, v3_2_0_session_header_format
 from httpie.manager.cli import missing_subcommand, parser
+from httpie.utils import is_version_greater
 
 
 FIXERS_TO_VERSIONS = {
@@ -27,25 +27,6 @@ def cli_sessions(env: Environment, args: argparse.Namespace) -> ExitStatus:
         raise ValueError(f'Unexpected action: {action}')
 
 
-def is_version_greater(version_1: str, version_2: str) -> bool:
-    # In an ideal scenario, we would depend on `packaging` in order
-    # to offer PEP 440 compatible parsing. But since it might not be
-    # commonly available for outside packages, and since we are only
-    # going to parse HTTPie's own version it should be fine to compare
-    # this in a SemVer subset fashion.
-
-    def split_version(version: str) -> Tuple[int, ...]:
-        parts = []
-        for part in version.split('.')[:3]:
-            try:
-                parts.append(int(part))
-            except ValueError:
-                break
-        return tuple(parts)
-
-    return split_version(version_1) > split_version(version_2)
-
-
 def upgrade_session(env: Environment, args: argparse.Namespace, hostname: str, session_name: str):
     session = get_httpie_session(
         env=env,