add execution context to config and initialize in flag module

Author: Shourya742

src/bootstrap/src/core/config/config.rs

@@ -30,7 +30,8 @@ use crate::core::config::flags::{Color, Flags, Warnings};
 use crate::core::download::is_download_ci_available;
 use crate::utils::cache::{INTERNER, Interned};
 use crate::utils::channel::{self, GitInfo};
-use crate::utils::helpers::{self, exe, output, t};
+use crate::utils::execution_context::ExecutionContext;
+use crate::utils::helpers::{self, exe, t};
 
 /// Each path in this list is considered "allowed" in the `download-rustc="if-unchanged"` logic.
 /// This means they can be modified and changes to these paths should never trigger a compiler build
@@ -422,6 +423,8 @@ pub struct Config {
 
     /// Cache for determining path modifications
     pub path_modification_cache: Arc<Mutex<HashMap<Vec<&'static str>, PathFreshness>>>,
+
+    pub execution_context: ExecutionContext,
 }
 
 #[derive(Debug, Default, Clone, Copy, PartialEq, Eq)]
@@ -1449,8 +1452,9 @@ impl Config {
         feature = "tracing",
         instrument(target = "CONFIG_HANDLING", level = "trace", name = "Config::parse", skip_all)
     )]
-    pub fn parse(flags: Flags) -> Config {
-        Self::parse_inner(flags, Self::get_toml)
+    pub fn parse(flags: Flags, execution_context: ExecutionContext) -> Config {
+        let config = Self::parse_inner(flags, Self::get_toml, execution_context);
+        config
     }
 
     #[cfg_attr(
@@ -1465,8 +1469,10 @@ impl Config {
     pub(crate) fn parse_inner(
         mut flags: Flags,
         get_toml: impl Fn(&Path) -> Result<TomlConfig, toml::de::Error>,
+        execution_context: ExecutionContext,
     ) -> Config {
         let mut config = Config::default_opts();
+        config.execution_context = execution_context;
 
         // Set flags.
         config.paths = std::mem::take(&mut flags.paths);

src/bootstrap/src/core/config/flags.rs

@@ -13,7 +13,8 @@ use crate::core::build_steps::perf::PerfArgs;
 use crate::core::build_steps::setup::Profile;
 use crate::core::builder::{Builder, Kind};
 use crate::core::config::{Config, TargetSelectionList, target_selection_list};
-use crate::{Build, DocTests};
+use crate::utils::execution_context::ExecutionContext;
+use crate::{Build, DocTests, DryRun};
 
 #[derive(Copy, Clone, Default, Debug, ValueEnum)]
 pub enum Color {
@@ -203,7 +204,8 @@ impl Flags {
             HelpVerboseOnly::try_parse_from(normalize_args(args))
         {
             println!("NOTE: updating submodules before printing available paths");
-            let config = Config::parse(Self::parse(&[String::from("build")]));
+            let (flags, execution_context) = Self::parse(&[String::from("build")]);
+            let config = Config::parse(flags, execution_context);
             let build = Build::new(config);
             let paths = Builder::get_help(&build, subcommand);
             if let Some(s) = paths {
@@ -221,8 +223,16 @@ impl Flags {
         feature = "tracing",
         instrument(level = "trace", name = "Flags::parse", skip_all, fields(args = ?args))
     )]
-    pub fn parse(args: &[String]) -> Self {
-        Flags::parse_from(normalize_args(args))
+    pub fn parse(args: &[String]) -> (Self, ExecutionContext) {
+        let mut execution_context = ExecutionContext::new();
+        let flags = Flags::parse_from(normalize_args(args));
+        execution_context.set_dry_run(if flags.dry_run {
+            DryRun::UserSelected
+        } else {
+            DryRun::Disabled
+        });
+        execution_context.set_verbose(flags.verbose);
+        (flags, execution_context)
     }
 }