List available project targets with a new "platformio run –list-targe…

…ts" command // Resolve #3544

HISTORY.rst

@@ -23,6 +23,7 @@ PlatformIO Core 4
   - Python callback as a target (use the power of Python interpreter and PlatformIO Build API)
 
 
+* List available project targets (including dev-platform specific and custom targets) with a new `platformio run --list-targets <https://docs.platformio.org/page/core/userguide/cmd_run.html#cmdoption-platformio-run-list-targets>`__ command (`issue #3544 <https://github.com/platformio/platformio-core/issues/3544>`_)
 * Added support for "globstar/`**`" (recursive) pattern for the different commands and configuration options (`platformio ci <https://docs.platformio.org/page/core/userguide/cmd_ci.html>`__, `src_filter <https://docs.platformio.org/page/projectconf/section_env_build.html#src-filter>`__, `check_patterns <https://docs.platformio.org/page/projectconf/section_env_check.html#check-patterns>`__, `library.json > srcFilter <https://docs.platformio.org/page/librarymanager/config.html#srcfilter>`__). Python 3.5+ is required.
 * Added a new ``-e, --environment`` option to `platformio project init <https://docs.platformio.org/page/core/userguide/project/cmd_init.html#cmdoption-platformio-project-init-e>`__ command that helps to update a PlatformIO project using existing environment
 * Fixed an issue with PIO Unit Testing when running multiple environments (`issue #3523 <https://github.com/platformio/platformio-core/issues/3523>`_)

platformio/commands/run/command.py

@@ -12,9 +12,9 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+import operator
+import os
 from multiprocessing import cpu_count
-from os import getcwd
-from os.path import isfile
 from time import time
 
 import click
@@ -26,7 +26,7 @@
 from platformio.commands.run.processor import EnvironmentProcessor
 from platformio.commands.test.processor import CTX_META_TEST_IS_RUNNING
 from platformio.project.config import ProjectConfig
-from platformio.project.helpers import find_project_dir_above
+from platformio.project.helpers import find_project_dir_above, load_project_ide_data
 
 # pylint: disable=too-many-arguments,too-many-locals,too-many-branches
 
@@ -43,7 +43,7 @@
 @click.option(
     "-d",
     "--project-dir",
-    default=getcwd,
+    default=os.getcwd,
     type=click.Path(
         exists=True, file_okay=True, dir_okay=True, writable=True, resolve_path=True
     ),
@@ -68,6 +68,7 @@
 @click.option("-s", "--silent", is_flag=True)
 @click.option("-v", "--verbose", is_flag=True)
 @click.option("--disable-auto-clean", is_flag=True)
+@click.option("--list-targets", is_flag=True)
 @click.pass_context
 def cli(
     ctx,
@@ -80,11 +81,12 @@ def cli(
     silent,
     verbose,
     disable_auto_clean,
+    list_targets,
 ):
     app.set_session_var("custom_project_conf", project_conf)
 
     # find project directory on upper level
-    if isfile(project_dir):
+    if os.path.isfile(project_dir):
         project_dir = find_project_dir_above(project_dir)
 
     is_test_running = CTX_META_TEST_IS_RUNNING in ctx.meta
@@ -93,6 +95,9 @@ def cli(
         config = ProjectConfig.get_instance(project_conf)
         config.validate(environment)
 
+        if list_targets:
+            return print_target_list(list(environment) or config.envs())
+
         # clean obsolete build dir
         if not disable_auto_clean:
             build_dir = config.get_optional_dir("build")
@@ -261,3 +266,33 @@ def print_processing_summary(results):
         is_error=failed_nums,
         fg="red" if failed_nums else "green",
     )
+
+
+def print_target_list(envs):
+    tabular_data = []
+    for env, data in load_project_ide_data(os.getcwd(), envs).items():
+        tabular_data.extend(
+            sorted(
+                [
+                    (
+                        click.style(env, fg="cyan"),
+                        t["group"],
+                        click.style(t.get("name"), fg="yellow"),
+                        t["title"],
+                        t.get("description"),
+                    )
+                    for t in data.get("targets", [])
+                ],
+                key=operator.itemgetter(1, 2),
+            )
+        )
+        tabular_data.append((None, None, None, None, None))
+    click.echo(
+        tabulate(
+            tabular_data,
+            headers=[
+                click.style(s, bold=True)
+                for s in ("Environment", "Group", "Name", "Title", "Description")
+            ],
+        ),
+    )