hls/xls: disable conda-forge

- remove conda-forge requirements
- install bazel using bazelisk
- remove obsolete patches
- strip python host dependencies and patches (not used by binary rules)

hls/xls: add compiler deps

github/workflows/Build: re-enable xls

hls/xls: remove requirements

hls/xls: add proto_to_dslx_main

hls/xls: re-enable llvm toolchain

hls/xls: build proto_to_dslx_main

hls/xls: remove bazel alias

.github/workflows/Build.yml

@@ -769,7 +769,6 @@ jobs:
     env:
       PACKAGE: "hls/xls"
       OS_NAME: "linux"
-      SKIP: "true"
     steps:
       - uses: actions/checkout@v3
       - uses: ./ci

hls/xls/build.sh

@@ -2,14 +2,18 @@
 
 set -ex
 
-bazel build -c opt \
+chmod +x $SRC_DIR/bazelisk-linux-amd64
+$SRC_DIR/bazelisk-linux-amd64 build -c opt \
   --extra_toolchains=@llvm_toolchain//:cc-toolchain-x86_64-linux \
   //xls/dslx:interpreter_main \
   //xls/dslx:ir_converter_main \
   //xls/tools:opt_main \
-  //xls/tools:codegen_main
+  //xls/tools:codegen_main \
+  //xls/tools:proto_to_dslx_main
 
+mkdir -p $PREFIX/bin/
 cp bazel-bin/xls/dslx/interpreter_main \
    bazel-bin/xls/dslx/ir_converter_main \
    bazel-bin/xls/tools/opt_main \
-   bazel-bin/xls/tools/codegen_main $PREFIX/bin/
+   bazel-bin/xls/tools/codegen_main \
+   bazel-bin/xls/tools/proto_to_dslx_main $PREFIX/bin/

hls/xls/meta.yaml

@@ -9,9 +9,9 @@ source:
   - git_url: https://github.com/google/xls.git
     git_rev: main
     patches:
-      - skip-python-requirements.patch
-      - use-llvm-toolchain.patch      
-
+      - use-llvm-toolchain.patch 
+  - url: https://github.com/bazelbuild/bazelisk/releases/download/v1.12.0/bazelisk-linux-amd64
+    sha256: 6b0bcb2ea15bca16fffabe6fda75803440375354c085480fe361d2cbf32501db
 build:
   # number: 202202082028
   number: {{ environ.get('DATE_NUM') }}
@@ -20,23 +20,6 @@ build:
   script_env:
     - CI
 
-requirements:
-  build:
-    - bazel
-  host:
-    - python
-    - pip
-    - protobuf
-    - pycparser 2.19
-    - Flask 1.1.2
-    - Jinja2 2.11.3
-    - werkzeug 1.0.1
-    - itsdangerous 1.1.0
-    - MarkupSafe 2.0
-    - click 7.1.2
-    - numpy >=1.19.5,<=1.20.0
-    - scipy >=1.5.4,<=1.6.0
-
 test:
   commands:
     - interpreter_main --version