Add epel prepare plugin using feature into tmt try

docs/releases.rst

@@ -29,6 +29,9 @@ In verbose mode, the ``discover`` step now prints information
 about the beakerlib libraries which were fetched for the test
 execution. Use ``tmt run discover -vvv`` to see the details.
 
+``tmt try`` now supports :ref:`/stories/cli/try/option/epel` option
+backed by :ref:`prepare/feature</plugins/prepare/feature>` plugin.
+
 
 tmt-1.36.1
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

stories/cli/try.fmf

@@ -127,3 +127,22 @@ link:
             package: vim
         execute:
             how: tmt
+
+/option:
+    story:
+        As a user I want an easy way to run common options in ``1minutetip`` and ``tmt run``
+
+    /epel:
+        story:
+            As a user I want an easy way to enable epel repository
+        description: |
+            Enable EPEL repository
+
+            .. versionadded:: 1.37
+
+        example:
+            - tmt try centos-stream-9@virtual --epel
+
+        link:
+          - implemented-by: /tmt/trying.py
+          - implemented-by: /tmt/steps/prepare/feature.py

tests/try/basic/data/epel.exp

@@ -0,0 +1,8 @@
+#!/usr/bin/expect -f
+# Try epel
+
+set timeout 180
+spawn tmt try fedora@container --epel -p /plans/basic
+expect "What do we do next?"
+send -- "q\r"
+expect eof

tests/try/basic/test.sh

@@ -27,6 +27,13 @@ rlJournalStart
         rlAssertGrep "Run .* successfully finished. Bye for now!" $rlRun_LOG
     rlPhaseEnd
 
+    rlPhaseStartTest "Epel"
+        rlRun -s "./epel.exp"
+        rlAssertGrep "Let's try.*/plans/basic" $rlRun_LOG
+        rlAssertGrep "PLAY \[Enable EPEL repositories\]" $rlRun_LOG
+        rlAssertGrep "Run .* successfully finished. Bye for now!" $rlRun_LOG
+    rlPhaseEnd
+
     rlPhaseStartTest "Verbose Output"
         rlRun -s "TMT_CONFIG_DIR=$config ./verbose.exp"
         rlAssertGrep "custom-prepare" $rlRun_LOG

tmt/cli.py

@@ -1749,6 +1749,9 @@ def init(
 @option(
     "-l", "--login", is_flag=True, default=False,
     help="Log into the guest only, do not run any tests.")
+@option(
+    "--epel", is_flag=True, default=False,
+    help="Enable epel repository.")
 @option(
     "-a", "--ask", is_flag=True, default=False,
     help="Just provision the guest and ask what to do next.")

tmt/steps/prepare/feature.py

@@ -78,6 +78,10 @@ def disable(self) -> None:
     }
 
 
+class _RawPrepareFeatureStepData(tmt.steps.prepare._RawPrepareStepData, total=False):
+    epel: str
+
+
 @dataclasses.dataclass
 class PrepareFeatureData(tmt.steps.prepare.PrepareStepData):
     epel: Optional[str] = field(

tmt/trying.py

@@ -20,6 +20,8 @@
 import tmt.utils
 from tmt import Plan
 from tmt.base import RunData
+from tmt.steps.prepare import PreparePlugin
+from tmt.steps.prepare.feature import _RawPrepareFeatureStepData
 from tmt.utils import MetadataError, Path
 
 USER_PLAN_NAME = "/user/plan"
@@ -103,6 +105,7 @@ def __init__(
         self.tests: list[tmt.Test] = []
         self.plans: list[Plan] = []
         self.image_and_how = self.opt("image_and_how")
+        self.cli_options = ["epel"]
 
         # Use the verbosity level 3 unless user explicitly requested
         # a different level on the command line
@@ -402,6 +405,28 @@ def action_quit(self, plan: Plan) -> None:
         run_id = click.style(plan.my_run.workdir, fg="magenta")
         self.print(f"Run {run_id} successfully finished. Bye for now!")
 
+    def handle_options(self, plan: Plan) -> None:
+        """ Choose requested cli option """
+
+        for option in self.cli_options:
+            if self.opt(option):
+                getattr(self, f"handle_{option}")(plan)
+
+    def handle_epel(self, plan: Plan) -> None:
+        """ Enable EPEL repository """
+
+        # tmt run prepare --how feature --epel enabled
+        data: _RawPrepareFeatureStepData = {
+            "name": "tmt-try-epel",
+            'how': 'feature',
+            'epel': "enabled",
+            }
+
+        phase: PreparePlugin[Any] = cast(
+            PreparePlugin[Any], PreparePlugin.delegate(
+                plan.prepare, raw_data=data))
+        plan.prepare._phases.append(phase)
+
     def go(self) -> None:
         """ Run the interactive session """
 
@@ -418,8 +443,9 @@ def go(self) -> None:
         self.welcome()
         self.save()
 
-        # Set the default verbosity level
+        # Set the default verbosity level, handle options
         for plan in self.plans:
+            self.handle_options(plan)
             self.action_verbose(plan)
 
         # Choose the initial action