feat(unstable): `deno run --env` (#20300)

This change adds the `--env=[FILE]` flag to the `run`, `compile`,
`eval`, `install` and `repl` subcommands. Environment variables set in
the CLI overwrite those defined in the `.env` file.

1 files changed, 13 insertions, 0 deletions

diff --git a/cli/tests/integration/eval_tests.rs b/cli/tests/integration/eval_tests.rs
index df2362c7f..99a0d674f 100644
--- a/cli/tests/integration/eval_tests.rs
+++ b/cli/tests/integration/eval_tests.rs
@@ -77,3 +77,16 @@ itest!(check_local_by_default2 {
   output: "eval/check_local_by_default2.out",
   http_server: true,
 });
+
+itest!(env_file {
+  args: "eval --env=env console.log(Deno.env.get(\"ANOTHER_FOO\"))",
+  output_str: Some("ANOTHER_BAR\n"),
+});
+
+itest!(env_file_missing {
+  args: "eval --env=missing console.log(Deno.env.get(\"ANOTHER_FOO\"))",
+  output_str: Some(
+    "error: Unable to load 'missing' environment variable file\n"
+  ),
+  exit_code: 1,
+});