[#112] Add --remote flag to all cli commands

.docker/Dockerfile.das-toolbox

@@ -1,4 +1,4 @@
-FROM ubuntu:20.04 AS builder
+FROM ubuntu:22.04 AS builder
 
 ENV TZ=America/Sao_Paulo \
     DEBIAN_FRONTEND=noninteractive

src/common/command.py

@@ -2,6 +2,7 @@
 from typing import Any
 
 import click
+from fabric import Connection
 
 from common.logger import logger
 
@@ -34,19 +35,99 @@ class Command:
     help = ""
     short_help = ""
     params = []
+    # TODO: Add more ways to connect, example: ssh-key file, etc. Look at the fabric docs.
+    remote_params = [
+        CommandOption(
+            ["--remote"],
+            type=bool,
+            default=False,
+            is_flag=True,
+            help="whether to run the command on a remote server",
+        ),
+        CommandOption(
+            ["--host", "-H"],
+            type=str,
+            help="the login user for the remote connection",
+            required=False,
+        ),
+        CommandOption(
+            ["--user", "-H"],
+            type=str,
+            help="the login user for the remote connection",
+            required=False,
+        ),
+        CommandOption(
+            ["--port", "-H"],
+            type=int,
+            help="the remote port",
+            required=False,
+        ),
+    ]
 
     def __init__(self) -> None:
         self.command = click.Command(
             name=self.name,
             callback=self.safe_run,
             help=self.help,
             short_help=self.short_help,
-            params=self.params,
+            params=self.params + self.remote_params,
         )
 
-    def safe_run(self, **kwarg):
+    def _get_remote_kwargs(self, kwargs) -> tuple[bool, dict, dict]:
+        """
+        Gets remote kwargs from kwargs.
+        Params:
+        Returns (bool, kwargs, remote_kwargs):
+            First value is whether the command should be run on a remote server or not.
+        """
+        if not kwargs:
+            return (False, kwargs, {})
+        remote_kwargs = {
+            "user": kwargs.pop("user") or "",
+            "port": kwargs.pop("port") or 22,
+            "host": kwargs.pop("host") or "",
+        }
+        remote = kwargs.pop("remote") or False
+
+        return (remote, kwargs, remote_kwargs)
+
+    def _dict_to_command_line_args(self, d: dict) -> str:
+        """
+        Convert dict to command line args
+
+        Params:
+            d (dict): the dict to be converted convert
+
+        """
+        args = []
+        for key, value in d.items():
+            arg_key = str(key).replace("_", "-")
+
+            if isinstance(value, bool):
+                if value:
+                    args.append(f"--{arg_key}")
+            else:
+                if value:
+                    arg_value = str(value).lower()
+                    arg = f"--{arg_key} {arg_value}"
+                    args.append(arg)
+
+        return " ".join(args)
+
+    def _remote_run(self, kwargs, remote_kwargs):
+        ctx = click.get_current_context()
+        prefix = "das-cli"
+        command_path = " ".join(ctx.command_path.split(" ")[1:])
+        extra_args = self._dict_to_command_line_args(kwargs)
+        command = f"{prefix} {command_path} {extra_args}"
+        Connection(**remote_kwargs).run(command)
+
+    def safe_run(self, **kwargs):
+        remote, kwargs, remote_kwargs = self._get_remote_kwargs(kwargs)
         try:
-            return self.run(**kwarg)
+            if remote:
+                return self._remote_run(kwargs, remote_kwargs)
+            return self.run(**kwargs)
         except Exception as e:
             error_type = e.__class__.__name__
             error_message = str(e)

src/requirements.txt

@@ -1,4 +1,4 @@
-Click==7.0
+Click==8.1.6
 docker==7.1.0
 distro==1.9.0
 click-man==0.4.1

tests/integration/test_remote.bats

@@ -0,0 +1,55 @@
+#!/usr/local/bin/bats
+
+load 'libs/bats-support/load'
+load 'libs/bats-assert/load'
+load 'libs/utils'
+load 'libs/docker'
+
+setup() {
+  if [ -z "${REMOTE_HOST+x}" ]; then
+    skip "Environment variable REMOTE_HOST is not set. Skipping all tests in this file."
+  fi
+
+  libs=(hyperon-das hyperon-das-atomdb)
+
+  pip3 install hyperon-das==0.7.13
+}
+
+teardown() {
+  pip3 uninstall -y hyperon-das
+  pip3 uninstall -y hyperon-das-atomdb
+}
+
+@test "Listing all python library versions" {
+  local available_versions_regex="^.*\savailable\sversions:"
+  local available_versions_match_count
+
+  run python3 src/das_cli.py python-library list --remote --host $REMOTE_HOST
+
+  available_versions_match_count=$(echo "$output" | grep -cE "$available_versions_regex")
+
+  assert_output --regexp "$available_versions_regex"
+  assert [ "$available_versions_match_count" -eq "${#libs[@]}" ]
+}
+
+@test "Show available python library versions" {
+  local available_versions_regex="^.*\savailable\sversions:"
+
+  for lib in "${libs[@]}"; do
+    local available_versions_match_count
+
+    run python3 src/das_cli.py python-library list --library "$lib" --remote --host $REMOTE_HOST
+    available_versions_match_count=$(echo "$output" | grep -cE "$available_versions_regex")
+
+    assert_output --regexp "$available_versions_regex"
+    assert [ "$available_versions_match_count" -eq 1 ]
+  done
+}
+
+@test "Trying to show version to an invalid python library" {
+  local invalid_lib="invalid-python-library"
+
+  run python3 src/das_cli.py python-library list --library $invalid_lib --remote --host $REMOTE_HOST
+
+  assert_failure
+}