Bazel build system (#11337)

Created a bazel-based build system, implemented a whole GUI build target within it.

# Important Notes
- Running `pnpm install` will install all necessary dependencies, including Bazel itself.
- The `.env` file with safe defaults is now committed to the repository, at `app/gui`. The old version at `app/` is no longer used.
- Because the `.env` file is committed, it does not contain anything sensitive, and developers must create `.env.local` file at `app/gui` and overwrite the variables as needed. Ask @Frizi or @vitvakatu for a template file.
- You might need a few additional things on Windows:

1. `Developer Mode` must be enabled to support creating filesystem symlinks. E.g., using this instruction: https://pureinfotech.com/enable-developer-mode-windows-11/
2. You must create either `.bazelrc.local` at repository root, or `%USERPROFILE%\.bazelrc` (consult https://bazel.build/run/bazelrc for more possible locations), containing the following:

```
# Use different drive letter if needed, but the path must be SHORT
startup --output_base=C:/_bzl
common --disk_cache=C:/_bzl-disk
common --repository_cache=C:/_bzl-repo
```
3. You need to have `bash.exe` available in `PATH`, so either:
- install MSYS2 (https://www.msys2.org/)
- or use bash executable provided with Git by adding the following to your `PATH` variable: `C:\Program Files\Git\bin`, if you have it installed.
- or configure Git installation selecting the third option:
![Git installation settings](https://github.com/user-attachments/assets/def189fa-985b-47f3-8c8b-153c0f39fa26)

.bazelignore

@@ -0,0 +1,36 @@
+# all node modules
+node_modules
+app/gui/node_modules
+app/common/node_modules
+app/ide-desktop/client/node_modules
+app/ide-desktop/icons/node_modules
+app/ide-desktop/lib/assets/node_modules
+app/ide-desktop/lib/client/node_modules
+app/ide-desktop/lib/common/node_modules
+app/ide-desktop/lib/content-config/node_modules
+app/ide-desktop/lib/dashboard/node_modules
+app/ide-desktop/lib/esbuild-plugin-copy-directories/node_modules
+app/ide-desktop/lib/icons/node_modules
+app/ide-desktop/lib/ts-plugin-namespace-auto-import/node_modules
+app/ide-desktop/node_modules
+app/rust-ffi/node_modules
+app/ydoc-server/node_modules
+app/ydoc-server-nodejs/node_modules
+app/ydoc-server-polyglot/node_modules
+app/ydoc-shared/node_modules
+app/ydoc-shared/parser-codegen/generated
+app/ydoc-shared/parser-codegen/node_modules
+lib/js/runner/node_modules
+
+#
+.bloop
+bazel-enso
+bazel-out
+bazel-testlogs
+build-cache
+.idea
+.vscode
+.dist
+target
+build
+.git

.bazelrc

@@ -0,0 +1,48 @@
+# FIXME: consider using RC files from guide: https://docs.aspect.build/guides/bazelrc/
+
+## General rules
+common --enable_platform_specific_config
+common --incompatible_allow_tags_propagation
+common --incompatible_use_plus_in_repo_names
+test --test_output=errors
+build --show_result=20
+build --reuse_sandbox_directories
+build --nolegacy_external_runfiles
+build --noexperimental_check_output_files --experimental_allow_tags_propagation
+fetch --noexperimental_check_output_files --experimental_allow_tags_propagation
+query --noexperimental_check_output_files --experimental_allow_tags_propagation
+build --nobuild_runfile_links
+coverage --build_runfile_links
+
+## JS
+
+# passes an argument `--skipLibCheck` to *every* spawn of tsc
+common --@aspect_rules_ts//ts:skipLibCheck=always
+common --@aspect_rules_ts//ts:default_to_tsc_transpiler
+
+# Allow the Bazel server to check directory sources for changes. Ensures that the Bazel server
+# notices when a directory changes, if you have a directory listed in the srcs of some target.
+# Recommended when using
+# [copy_directory](https://github.com/aspect-build/bazel-lib/blob/main/docs/copy_directory.md) and
+# [rules_js](https://github.com/aspect-build/rules_js) since npm package are source directories
+# inputs to copy_directory actions.
+# Docs: https://bazel.build/reference/command-line-reference#flag--host_jvm_args
+startup --host_jvm_args=-DBAZEL_TRACK_SOURCE_DIRECTORIES=1
+
+## GraalVM toolchain
+build --extra_toolchains=@graalvm//:bootstrap_runtime_toolchain
+
+## GraalVM versions
+common --tool_java_runtime_version=graalvm_21
+common --tool_java_language_version=21
+
+common --java_runtime_version=graalvm_21
+common --java_language_version=21
+
+## Rust
+startup --windows_enable_symlinks
+build --enable_runfiles
+build --@rules_rust//rust/toolchain/channel=nightly
+
+## Allow local overrides of bazel configuration
+try-import %workspace%/.bazelrc.local

.bazelversion

@@ -0,0 +1 @@
+7.4.1

.cargo/config.toml

@@ -2,18 +2,11 @@
 target-dir = "target/rust/"
 rustflags = ["--cfg", "tokio_unstable"]
 
-[target.wasm32-unknown-unknown]
-rustflags = [
-    # Increas the stack size from 1MB to 2MB. This is required to avoid running out of stack space
-    # in debug builds. The error is reported as `RuntimeError: memory access out of bounds`.
-    "-C",
-    "link-args=-z stack-size=2097152",
-]
-
 [target.x86_64-pc-windows-msvc]
+linker = "rust-lld"
 # Static linking is required to avoid the need for the Visual C++ Redistributable. We care about this primarily for our
 # installer binary package.
-rustflags = ["-C", "link-arg=/STACK:2097152", "-C", "target-feature=+crt-static"]
+rustflags = ["-C", "target-feature=+crt-static"]
 
-[target.x86_64-pc-windows-gnu]
-rustflags = ["-C", "link-arg=-Wl,--stack,2097152"]
+[target.x86_64-unknown-linux-gnu]
+rustflags = ["-Clink-arg=-fuse-ld=lld"]

.github/workflows/bazel-build.yml

@@ -0,0 +1,50 @@
+name: Bazel build
+on:
+  push:
+    branches:
+      - develop
+  pull_request: {}
+jobs:
+  build-gui:
+    name: Run bazel GUI build
+    # if: github.ref != 'refs/heads/develop'
+    runs-on:
+      - ubuntu-latest
+    steps:
+      - uses: bazel-contrib/[email protected]
+        with:
+          bazelisk-cache: true
+          disk-cache: true
+          repository-cache: true
+      - uses: actions/checkout@v4
+      - name: Expose env variables
+        run: |
+          cat << END > app/gui/.env.production
+          ENSO_IDE_ENVIRONMENT="${{ vars.ENSO_CLOUD_ENVIRONMENT }}"
+          ENSO_IDE_API_URL="${{ vars.ENSO_CLOUD_API_URL }}"
+          ENSO_IDE_CHAT_URL="${{ vars.ENSO_CLOUD_CHAT_URL }}"
+          ENSO_IDE_COGNITO_DOMAIN="${{ vars.ENSO_CLOUD_COGNITO_DOMAIN }}"
+          ENSO_IDE_COGNITO_REGION="${{ vars.ENSO_CLOUD_COGNITO_REGION }}"
+          ENSO_IDE_COGNITO_USER_POOL_ID="${{ vars.ENSO_CLOUD_COGNITO_USER_POOL_ID }}"
+          ENSO_IDE_COGNITO_USER_POOL_WEB_CLIENT_ID="${{ vars.ENSO_CLOUD_COGNITO_USER_POOL_WEB_CLIENT_ID }}"
+          ENSO_IDE_GOOGLE_ANALYTICS_TAG="${{ vars.ENSO_CLOUD_GOOGLE_ANALYTICS_TAG }}"
+          ENSO_IDE_SENTRY_DSN="${{ vars.ENSO_CLOUD_SENTRY_DSN }}"
+          ENSO_IDE_STRIPE_KEY="${{ vars.ENSO_CLOUD_STRIPE_KEY }}"
+          ENSO_IDE_AG_GRID_LICENSE_KEY="${{ vars.ENSO_AG_GRID_LICENSE_KEY }}"
+          ENSO_IDE_MAPBOX_API_TOKEN="${{ vars.ENSO_MAPBOX_API_TOKEN }}"
+          ENSO_IDE_COMMIT_HASH="${{ github.sha }}"
+          ENSO_IDE_VERSION="SNAPSHOT-${GITHUB_HEAD_REF:-${GITHUB_REF#refs/heads/}}"
+          ENSO_IDE_CLOUD_BUILD="false"
+          END
+      - run: bazel build //app/gui:dist
+      - name: Get build output location
+        id: get_bazel_output
+        run: |
+          OUTPUT_SYMLINK=$(bazel cquery --output=files //app/gui:dist)
+          BAZEL_OUTPUT=$(readlink -f "$OUTPUT_SYMLINK")
+          echo "location=$BAZEL_OUTPUT" >> $GITHUB_OUTPUT
+      - uses: actions/upload-artifact@v4
+        with:
+          name: gui-static
+          path: ${{ steps.get_bazel_output.outputs.location }}
+          if-no-files-found: error

.github/workflows/changelog.yml

@@ -16,6 +16,17 @@ jobs:
     runs-on:
       - X64
     steps:
+      - if: runner.os == 'Windows'
+        name: Setup required bazel environment
+        run: "\n\"BAZEL_SH=C:\\Program Files\\Git\\bin\\bash.exe\" >> $env:GITHUB_ENV\n\"BAZEL_VC=C:\\BuildTools\\VC\" >> $env:GITHUB_ENV\n        "
+        shell: pwsh
+      - name: Setup bazel environment
+        uses: bazel-contrib/setup-bazel@09f3a72d13a081857b0ee94e986ffa84caef7c85
+        with:
+          bazelisk-cache: true
+          disk-cache: true
+          output-base: ${{ runner.os == 'Windows' && 'c:/_bazel' || '' }}
+          repository-cache: true
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
         uses: jetli/[email protected]

.github/workflows/engine-benchmark.yml

@@ -18,6 +18,17 @@ jobs:
     runs-on:
       - benchmark
     steps:
+      - if: runner.os == 'Windows'
+        name: Setup required bazel environment
+        run: "\n\"BAZEL_SH=C:\\Program Files\\Git\\bin\\bash.exe\" >> $env:GITHUB_ENV\n\"BAZEL_VC=C:\\BuildTools\\VC\" >> $env:GITHUB_ENV\n        "
+        shell: pwsh
+      - name: Setup bazel environment
+        uses: bazel-contrib/setup-bazel@09f3a72d13a081857b0ee94e986ffa84caef7c85
+        with:
+          bazelisk-cache: true
+          disk-cache: true
+          output-base: ${{ runner.os == 'Windows' && 'c:/_bazel' || '' }}
+          repository-cache: true
       - if: startsWith(runner.name, 'GitHub Actions') || startsWith(runner.name, 'Hosted Agent')
         name: Installing wasm-pack
         uses: jetli/[email protected]