Move b from a shell function to a shell script at build/bazel/bin/b

Bug: 244766775
Test: b build //packages/modules/adb/apex:com.android.adbd
Change-Id: I81b627965fcff636a142324e1eb221fd4c746e9d
diff --git a/envsetup.sh b/envsetup.sh
index bc206c4..5d006ab 100644
--- a/envsetup.sh
+++ b/envsetup.sh
@@ -253,6 +253,9 @@
     local ATEST_PATH="$T/prebuilts/asuite/atest/$os_arch"
     ANDROID_BUILD_PATHS=$ANDROID_BUILD_PATHS:$ACLOUD_PATH:$AIDEGEN_PATH:$ATEST_PATH
 
+    # Build system
+    ANDROID_BUILD_PATHS=$ANDROID_BUILD_PATHS:$T/build/bazel/bin
+
     export ANDROID_BUILD_PATHS=$(tr -s : <<<"${ANDROID_BUILD_PATHS}:")
     export PATH=$ANDROID_BUILD_PATHS$PATH
 
@@ -1842,59 +1845,6 @@
     fi
 )
 
-# Convenience entry point (like m) to use Bazel in AOSP.
-function b()
-(
-    # zsh breaks posix by not doing string-splitting on unquoted args by default.
-    # See https://zsh.sourceforge.io/Guide/zshguide05.html section 5.4.4.
-    # Tell it to emulate Bourne shell for this function.
-    if [ -n "$ZSH_VERSION" ]; then emulate -L sh; fi
-
-    # Look for the --run-soong-tests flag and skip passing --skip-soong-tests to Soong if present
-    local bazel_args=""
-    local skip_tests="--skip-soong-tests"
-    for i in $@; do
-        if [[ $i != "--run-soong-tests" ]]; then
-            bazel_args+="$i "
-        else
-            skip_tests=""
-        fi
-    done
-
-    # Generate BUILD, bzl files into the synthetic Bazel workspace (out/soong/workspace).
-    # RBE is disabled because it's not used with b builds and adds overhead: b/251441524
-    USE_RBE=false _trigger_build "all-modules" bp2build $skip_tests USE_BAZEL_ANALYSIS= || return 1
-    # Then, run Bazel using the synthetic workspace as the --package_path.
-    if [[ -z "$bazel_args" ]]; then
-        # If there are no args, show help and exit.
-        bazel help
-    else
-        # Else, always run with the bp2build configuration, which sets Bazel's package path to the synthetic workspace.
-        # Add the --config=bp2build after the first argument that doesn't start with a dash. That should be the bazel
-        # command. (build, test, run, ect) If the --config was added at the end, it wouldn't work with commands like:
-        # b run //foo -- --args-for-foo
-        local config_set=0
-
-        # Represent the args as an array, not a string.
-        local bazel_args_with_config=()
-        for arg in $bazel_args; do
-            if [[ $arg == "--" && $config_set -ne 1 ]]; # if we find --, insert config argument here
-            then
-                bazel_args_with_config+=("--config=bp2build -- ")
-                config_set=1
-            else
-                bazel_args_with_config+=("$arg ")
-            fi
-        done
-        if [[ $config_set -ne 1 ]]; then
-            bazel_args_with_config+=("--config=bp2build ")
-        fi
-
-        # Call Bazel.
-        bazel ${bazel_args_with_config[@]}
-    fi
-)
-
 function m()
 (
     _trigger_build "all-modules" "$@"