cmd: add compatibility mode for pre-argparse external commands

See #1070.

1 files changed, 33 insertions, 0 deletions

diff --git a/spec/external_spec.lua b/spec/external_spec.lua
new file mode 100644
index 00000000..4f1b8dce
--- /dev/null
+++ b/spec/external_spec.lua
@@ -0,0 +1,33 @@
+local test_env = require("spec.util.test_env")
+local run = test_env.run
+local testing_paths = test_env.testing_paths
+
+test_env.setup_specs()
+
+describe("LuaRocks external commands #integration", function()
+   setup(function()
+      test_env.mock_server_init()
+   end)
+
+   teardown(function()
+      test_env.mock_server_done()
+   end)
+
+   it("installs a legacy external command", function()
+      local rockspec = testing_paths.fixtures_dir .. "/legacyexternalcommand-0.1-1.rockspec"
+      assert.is_truthy(run.luarocks_bool("build " .. rockspec))
+      assert.is.truthy(run.luarocks("show legacyexternalcommand"))
+      local output = run.luarocks("legacyexternalcommand")
+      assert.match("Argument missing", output)
+      output = run.luarocks("legacyexternalcommand foo")
+      assert.match("ARG1\tfoo", output)
+      assert.match("ARG2\tnil", output)
+      output = run.luarocks("legacyexternalcommand foo bar")
+      assert.match("ARG1\tfoo", output)
+      assert.match("ARG2\tbar", output)
+      output = run.luarocks("legacyexternalcommand foo bar bla")
+      assert.match("ARG1\tfoo", output)
+      assert.match("ARG2\tbar", output)
+   end)
+end)
+