feat: add syntax highlighting to markdown renderer

.github/workflows/main.yaml

@@ -168,13 +168,13 @@ jobs:
           fi
       -
         # Both Linux targets build on native matching runners. `lc version`
-        # boots the application and performs a hidden Marcli render, forcing
-        # mdex_native and its NIF to load before the command can exit 0. No API
-        # key or network is needed. macOS/Windows runtime smoke tests remain
-        # out of scope because their hosted runners are not all native to the
-        # configured Burrito targets.
+        # boots the application and performs a hidden syntax-highlighted Marcli
+        # render, forcing mdex_native, its NIF, Makeup, and the Elixir lexer to
+        # load before the command can exit 0. No API key or network is needed.
+        # macOS/Windows runtime smoke tests remain out of scope because their
+        # hosted runners are not all native to the configured Burrito targets.
         if: startsWith(matrix.target, 'linux_')
-        name: Smoke-test the ${{ matrix.target }} binary and Markdown NIF
+        name: Smoke-test the ${{ matrix.target }} binary and Markdown runtime
         timeout-minutes: 1
         run: ./burrito_out/lc_${{ matrix.target }} version
       -
@@ -376,16 +376,16 @@ jobs:
         run: ./ci/build_image.sh "${{ needs.burrito-package.outputs.tag_name }}"
       -
         # Verify the musl NIF actually loads on Alpine before publishing.
-        # `lc version` boots the OTP app and performs a hidden Markdown render,
-        # forcing mdex_native's NIF and its bundled libgcc runtime to load.
-        # It then prints the version and exits 0; no API key or network is
-        # needed. ci/build_image.sh prefers
+        # `lc version` boots the OTP app and performs a hidden syntax-highlighted
+        # Markdown render, forcing mdex_native's NIF, its bundled libgcc runtime,
+        # Makeup, and the Elixir lexer to load. It then prints the version and
+        # exits 0; no API key or network is needed. ci/build_image.sh prefers
         # Podman, so the image lives in Podman's local storage; we run it
         # directly rather than loading a tarball. LINEAR_CLI_DAEMON is
         # overridden to false (the image bakes in true so the default CMD
         # starts the daemon; without this override the app ignores `version`
         # and stays alive as a daemon, timing out the step). See EXT-7.
-        name: Smoke-test the container image boots and NIFs load on Alpine/musl
+        name: Smoke-test the container image Markdown runtime on Alpine/musl
         timeout-minutes: 1
         run: |
           podman run --rm -e LINEAR_CLI_DAEMON=false "linear-cli:${{ needs.burrito-package.outputs.tag_name }}" lc version

app/lib/linear_cli/cli/commands.ex

@@ -19,8 +19,8 @@ defmodule LinearCli.CLI.Commands do
   Ported from commands/version.rb, extended to respect the global
   `--output json` option like every other command does - previously
   ignored it and always printed plain text. The hidden Markdown render makes
-  this command a complete release smoke test for mdex_native's NIF as well as
-  the application boot path.
+  this command a complete release smoke test for mdex_native's NIF, Marcli's
+  syntax-highlighting lexer, and the application boot path.
   """
   def version(%{options: options}) do
     verify_markdown_runtime!()
@@ -36,7 +36,14 @@ defmodule LinearCli.CLI.Commands do
   end
 
   defp verify_markdown_runtime! do
-    _rendered = Marcli.render("runtime check", escape_sequences: false)
+    theme = Marcli.Theme.default()
+    rendered = Marcli.render("```elixir\ndef smoke, do: :ok\n```")
+    highlighted_keyword = theme.syntax.keyword_declaration <> "def" <> theme.reset
+
+    unless String.contains?(rendered, highlighted_keyword) do
+      raise "Markdown syntax-highlighting runtime is unavailable"
+    end
+
     :ok
   end
 

app/mix.exs

@@ -61,6 +61,7 @@ defmodule LinearCli.MixProject do
   defp deps do
     [
       {:marcli, "~> 0.3"},
+      {:makeup_elixir, "~> 1.0"},
       {:owl, "~> 0.13"},
       {:optimus, "~> 0.6"},
       {:req, "~> 0.7"},

app/mix.lock

@@ -22,6 +22,8 @@
   "igniter": {:hex, :igniter, "0.8.3", "9de74d3885efae43b0b58dc6f7b816963c4bbd391e6b6fe6922ee21c4e384c76", [:mix], [{:ex_ast, "~> 0.5", [hex: :ex_ast, repo: "hexpm", optional: false]}, {:glob_ex, "~> 0.1.7", [hex: :glob_ex, repo: "hexpm", optional: false]}, {:jason, "~> 1.4.5", [hex: :jason, repo: "hexpm", optional: false]}, {:owl, "~> 0.11", [hex: :owl, repo: "hexpm", optional: false]}, {:phx_new, "~> 1.7", [hex: :phx_new, repo: "hexpm", optional: true]}, {:req, "~> 0.5", [hex: :req, repo: "hexpm", optional: false]}, {:rewrite, ">= 1.1.1 and < 2.0.0-0", [hex: :rewrite, repo: "hexpm", optional: false]}, {:sourceror, "~> 1.4", [hex: :sourceror, repo: "hexpm", optional: false]}, {:spitfire, ">= 0.1.3 and < 1.0.0-0", [hex: :spitfire, repo: "hexpm", optional: false]}], "hexpm", "afc5e3848d885e680da5c3b65e5e7717555a08cd12305190ff2be76427af39ff"},
   "iterex": {:hex, :iterex, "0.1.2", "58f9b9b9a22a55cbfc7b5234a9c9c63eaac26d276b3db80936c0e1c60355a5a6", [:mix], [], "hexpm", "2e103b8bcc81757a9af121f6dc0df312c9a17220f302b1193ef720460d03029d"},
   "jason": {:hex, :jason, "1.4.5", "2e3a008590b0b8d7388c20293e9dcc9cf3e5d642fd2a114e4cbbb52e595d940a", [:mix], [{:decimal, "~> 1.0 or ~> 2.0 or ~> 3.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "b0c823996102bcd0239b3c2444eb00409b72f6a140c1950bc8b457d836b30684"},
+  "makeup": {:hex, :makeup, "1.2.2", "882d46dc0905e9ff7abf2aab61a7e6b3dcc555533977d8a23b06019e6c89ac94", [:mix], [{:nimble_parsec, "~> 1.4", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "9a1a24e5b343b8ae16abea0822c10a6f75da27af7fa802ada5251f7579bfccfa"},
+  "makeup_elixir": {:hex, :makeup_elixir, "1.0.1", "e928a4f984e795e41e3abd27bfc09f51db16ab8ba1aebdba2b3a575437efafc2", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "7284900d412a3e5cfd97fdaed4f5ed389b8f2b4cb49efc0eb3bd10e2febf9507"},
   "marcli": {:hex, :marcli, "0.3.1", "183d2c674e416cdd90a5b395d60d573ad5d4381ec18239de2b2cfa249d926d7c", [:mix], [{:color, "~> 0.3", [hex: :color, repo: "hexpm", optional: true]}, {:makeup, "~> 1.2", [hex: :makeup, repo: "hexpm", optional: true]}, {:mdex, "~> 0.11", [hex: :mdex, repo: "hexpm", optional: false]}], "hexpm", "731383f9b9bdfd13affe2d43a3cef441440c4a9182cb59724478e51b85e2c7d4"},
   "mdex": {:hex, :mdex, "0.13.5", "c1c94d230ccaab01ad0c68090d3b31613c10ece1844f32b55895da4ce0c63029", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:lumis, "~> 0.1", [hex: :lumis, repo: "hexpm", optional: true]}, {:mdex_native, ">= 0.2.6", [hex: :mdex_native, repo: "hexpm", optional: false]}, {:nimble_options, "~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}, {:phoenix_live_view, "~> 0.20.0 or ~> 1.0", [hex: :phoenix_live_view, repo: "hexpm", optional: true]}], "hexpm", "c57409fb6b34fbc58fbce0a6da670c9a4b5a2e94f86abdc56e9e213ed74620f2"},
   "mdex_native": {:hex, :mdex_native, "0.2.7", "46203ee9c4fe2c94feef26e4d976235ad022b4770d3d307fa6b445d293b2571f", [:mix], [{:rustler, "~> 0.32", [hex: :rustler, repo: "hexpm", optional: true]}, {:rustler_precompiled, "~> 0.8", [hex: :rustler_precompiled, repo: "hexpm", optional: false]}], "hexpm", "05efa68775644ef6be6109f76c1f5f8778ff7e7ed9fe4a03541758158172bc77"},

app/test/linear_cli/cli/display_test.exs

@@ -0,0 +1,32 @@
+defmodule LinearCli.CLI.DisplayTest do
+  use ExUnit.Case, async: true
+
+  import ExUnit.CaptureIO
+
+  alias LinearCli.CLI.Display
+  alias LinearCli.Linear.Issue
+
+  test "full issue output syntax-highlights fenced Elixir code" do
+    issue = %Issue{
+      id: "issue-1",
+      identifier: "EXT-1",
+      title: "Highlight markdown",
+      description: """
+      ```elixir
+      defmodule Example do
+        def answer, do: 42
+      end
+      ```
+      """,
+      comments: []
+    }
+
+    output = capture_io(fn -> Display.show(issue, %{full: true}) end)
+    theme = Marcli.Theme.default()
+
+    assert output =~ theme.syntax.keyword_declaration <> "defmodule" <> theme.reset
+    assert output =~ theme.syntax.name_class <> "Example" <> theme.reset
+    assert output =~ theme.syntax.number <> "42" <> theme.reset
+    refute output =~ theme.code_text <> "defmodule"
+  end
+end