rustbuild: Make save-analysis an option

configure

@@ -645,6 +645,7 @@ opt dist-host-only 0 "only install bins for the host architecture"
 opt inject-std-version 1 "inject the current compiler version of libstd into programs"
 opt llvm-version-check 1 "check if the LLVM version is supported, build anyway"
 opt codegen-tests 1 "run the src/test/codegen tests"
+opt save-analysis 0 "save API analysis data"
 opt option-checking 1 "complain about unrecognized options in this configure script"
 opt ninja 0 "build LLVM using the Ninja generator (for MSVC, requires building in the correct environment)"
 opt locked-deps 0 "force Cargo.lock to be up to date"

src/bootstrap/config.rs

@@ -73,6 +73,7 @@ pub struct Config {
     pub rustc_default_ar: Option<String>,
     pub rust_optimize_tests: bool,
     pub rust_debuginfo_tests: bool,
+    pub rust_save_analysis: bool,
     pub rust_dist_src: bool,
 
     pub build: String,
@@ -223,6 +224,7 @@ struct Rust {
     optimize_tests: Option<bool>,
     debuginfo_tests: Option<bool>,
     codegen_tests: Option<bool>,
+    save_analysis: Option<bool>,
 }
 
 /// TOML representation of how each build target is configured.
@@ -347,6 +349,7 @@ impl Config {
             set(&mut config.rust_optimize_tests, rust.optimize_tests);
             set(&mut config.rust_debuginfo_tests, rust.debuginfo_tests);
             set(&mut config.codegen_tests, rust.codegen_tests);
+            set(&mut config.rust_save_analysis, rust.save_analysis);
             set(&mut config.rust_rpath, rust.rpath);
             set(&mut config.debug_jemalloc, rust.debug_jemalloc);
             set(&mut config.use_jemalloc, rust.use_jemalloc);
@@ -453,6 +456,7 @@ impl Config {
                 ("LOCAL_REBUILD", self.local_rebuild),
                 ("NINJA", self.ninja),
                 ("CODEGEN_TESTS", self.codegen_tests),
+                ("SAVE_ANALYSIS", self.rust_save_analysis),
                 ("LOCKED_DEPS", self.locked_deps),
                 ("VENDOR", self.vendor),
                 ("FULL_BOOTSTRAP", self.full_bootstrap),

src/bootstrap/config.toml.example

@@ -229,6 +229,9 @@
 # saying that the FileCheck executable is missing, you may want to disable this.
 #codegen-tests = true
 
+# Flag indicating whether the API analysis data should be saved.
+#save-analysis = false
+
 # =============================================================================
 # Options for specific targets
 #

src/bootstrap/dist.rs

@@ -311,18 +311,14 @@ pub fn rust_src_location(build: &Build) -> PathBuf {
 
 /// Creates a tarball of save-analysis metadata, if available.
 pub fn analysis(build: &Build, compiler: &Compiler, target: &str) {
+    if !build.config.rust_save_analysis {
+        return
+    }
+
     println!("Dist analysis");
 
-    if build.config.channel != "nightly" {
-        println!("\tskipping - not on nightly channel");
-        return;
-    }
     if compiler.host != build.config.build {
-        println!("\tskipping - not a build host");
-        return
-    }
-    if compiler.stage != 2 {
-        println!("\tskipping - not stage2");
+        println!("\tskipping, not a build host");
         return
     }
 

src/bootstrap/install.rs

@@ -49,6 +49,10 @@ pub fn install(build: &Build, stage: u32, host: &str) {
         install_sh(&build, "docs", "rust-docs", stage, host, &prefix,
                    &docdir, &libdir, &mandir, &empty_dir);
     }
+    if build.config.rust_save_analysis {
+        install_sh(&build, "analysis", "rust-analysis", stage, host, &prefix,
+                   &docdir, &libdir, &mandir, &empty_dir);
+    }
     install_sh(&build, "std", "rust-std", stage, host, &prefix,
                &docdir, &libdir, &mandir, &empty_dir);
     install_sh(&build, "rustc", "rustc", stage, host, &prefix,

src/bootstrap/lib.rs

@@ -524,7 +524,7 @@ impl Build {
                  .env(format!("CFLAGS_{}", target), self.cflags(target).join(" "));
         }
 
-        if self.config.channel == "nightly" && compiler.is_final_stage(self) {
+        if self.config.rust_save_analysis && compiler.is_final_stage(self) {
             cargo.env("RUSTC_SAVE_ANALYSIS", "api".to_string());
         }
 

src/ci/run.sh

@@ -42,6 +42,7 @@ fi
 if [ "$DEPLOY$DEPLOY_ALT" != "" ]; then
   RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --release-channel=nightly"
   RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-llvm-static-stdcpp"
+  RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --enable-save-analysis"
 
   if [ "$NO_LLVM_ASSERTIONS" = "1" ]; then
     RUST_CONFIGURE_ARGS="$RUST_CONFIGURE_ARGS --disable-llvm-assertions"