Remove the dead --dump-environment-variables flag from bun build

completions/bun.bash

@@ -91,7 +91,7 @@ _bun_completions() {
 
     local SUBCOMMANDS="dev bun create run install add remove upgrade completions discord help init pm x test repl update audit dedupe prune outdated link unlink build";
 
-    GLOBAL_OPTIONS[LONG_OPTIONS]="--use --cwd --bunfile --server-bunfile --config --disable-react-fast-refresh --disable-hmr --env-file --extension-order --jsx-factory --jsx-fragment --extension-order --jsx-factory --jsx-fragment --jsx-import-source --jsx-production --jsx-runtime --main-fields --no-summary --version --platform --public-dir --tsconfig-override --define --external --help --inject --loader --origin --port --dump-environment-variables --dump-limits --disable-bun-js";
+    GLOBAL_OPTIONS[LONG_OPTIONS]="--use --cwd --bunfile --server-bunfile --config --disable-react-fast-refresh --disable-hmr --env-file --extension-order --jsx-factory --jsx-fragment --extension-order --jsx-factory --jsx-fragment --jsx-import-source --jsx-production --jsx-runtime --main-fields --no-summary --version --platform --public-dir --tsconfig-override --define --external --help --inject --loader --origin --port";
     GLOBAL_OPTIONS[SHORT_OPTIONS]="-c -v -d -e -h -i -l -u -p";
 
     PACKAGE_OPTIONS[ADD_OPTIONS_LONG]="--development --optional --peer --catalog --filter";

completions/bun.zsh

@@ -514,9 +514,7 @@ _bun_run_completion() {
         '-i[Automatically install dependencies and use global cache in bun'"'"'s runtime, equivalent to --install=fallback'] \
         '--prefer-offline[Skip staleness checks for packages in bun'"'"'s JavaScript runtime and resolve from disk]' \
         '--prefer-latest[Use the latest matching versions of packages in bun'"'"'s JavaScript runtime, always checking npm]' \
-        '--silent[Don'"'"'t repeat the command for bun run]' \
-        '--dump-environment-variables[Dump environment variables from .env and process as JSON and quit. Useful for debugging]' \
-        '--dump-limits[Dump system limits. Userful for debugging]' &&
+        '--silent[Don'"'"'t repeat the command for bun run]' &&
         ret=0
 
     case $state in

src/bundler/transpiler.rs

@@ -653,37 +653,6 @@ impl<'a> Transpiler<'a> {
     pub fn sync_resolver_opts(&mut self) {
         self.resolver.opts = resolver_bundle_options_subset(&self.options);
     }
-
-    /// Print the loaded environment variables to stdout as 2-space-indented
-    /// JSON.
-    #[cold]
-    #[inline(never)]
-    pub fn dump_environment_variables(&self) {
-        use bun_js_printer::{Encoding, write_json_string};
-        // Dump `env.map.*` as 2-space-indented JSON. `bun_dotenv::Map` doesn't
-        // impl `serde::Serialize`, so iterate and emit the object by hand.
-        // Keys and values go through `write_json_string` (the same escaper the
-        // printer uses for metafile/HTML-manifest JSON) so `"` / `\` / control
-        // bytes are escaped as standard JSON requires.
-        bun_core::Output::flush();
-        let env = self.env_mut();
-        let w = bun_core::Output::writer();
-        let _ = w.write_all(b"{\n");
-        let mut first = true;
-        let mut it = env.map.iterator();
-        while let Some(pair) = it.next() {
-            if !first {
-                let _ = w.write_all(b",\n");
-            }
-            first = false;
-            let _ = w.write_all(b"  ");
-            let _ = write_json_string::<_, { Encoding::Utf8 }>(&**pair.key_ptr, w);
-            let _ = w.write_all(b": ");
-            let _ = write_json_string::<_, { Encoding::Utf8 }>(&*pair.value_ptr.value, w);
-        }
-        let _ = w.write_all(b"\n}\n");
-        bun_core::Output::flush();
-    }
 }
 
 // ══════════════════════════════════════════════════════════════════════════

src/options_types/context.rs

@@ -350,7 +350,6 @@ pub fn try_get<'a>() -> Option<&'a ContextData> {
 }
 
 pub struct DebugOptions {
-    pub dump_environment_variables: bool,
     pub silent: bool,
     pub hot_reload: HotReload,
     /// `--watch-kill-signal`: signal whose JS handlers run before a `--watch`
@@ -377,7 +376,6 @@ impl Default for DebugOptions {
     #[inline(always)]
     fn default() -> Self {
         Self {
-            dump_environment_variables: false,
             silent: false,
             hot_reload: HotReload::None,
             watch_kill_signal: bun_core::SignalCode::DEFAULT,

src/runtime/cli/Arguments.rs

@@ -535,7 +535,6 @@ pub(crate) const BUILD_ONLY_PARAMS: &[ParamType] = concat_params!(
         parse_param!(
             "--css-chunking                   Chunk CSS files together to reduce duplicated CSS loaded in a browser. Only has an effect when multiple entrypoints import CSS"
         ),
-        parse_param!("--dump-environment-variables"),
         parse_param!("--conditions <STR>...            Pass custom conditions to resolve"),
         parse_param!(
             "--app                            (EXPERIMENTAL) Build a web app for production using Bun Bake."

src/runtime/cli/build_command.rs

@@ -599,13 +599,6 @@ impl BuildCommand {
         }
         let _ = client_transpiler;
 
-        // var env_loader = this_transpiler.env;
-
-        if ctx.debug.dump_environment_variables {
-            this_transpiler.dump_environment_variables();
-            return Ok(());
-        }
-
         let mut reachable_file_count: usize = 0;
         let mut minify_duration: u64 = 0;
         let mut input_code_length: u64 = 0;