🔨 Translate *.sh into *.bat (#46)

... for Microsoft Windows users

build_web.bat

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+@echo off
+
+SET script_path=%~dp0
+cd %script_path%
+
+SET OPEN=0
+SET FAST=0
+
+:do_while
+  IF (%1) == () GOTO end_while
+
+  IF %1 == -h GOTO print_help
+  IF %1 == --help GOTO print_help
+
+  IF %1 == --fast (
+    SET FAST=1
+    SHIFT
+    GOTO do_while
+  )
+
+  IF %1 == --open (
+    SET OPEN=1
+    SHIFT
+    GOTO do_while
+  )
+
+  echo Unknown command "%1"
+:end_while
+
+@REM call this first : `./setup_web.bat`
+
+for %%I in (.) do SET FOLDER_NAME=%%~nxI
+
+@REM assume crate name is the same as the folder name
+SET CRATE_NAME=%FOLDER_NAME%
+
+@REM for those who name crates with-kebab-case
+SET CRATE_NAME_SNAKE_CASE=%FOLDER_NAME:-=_%
+
+@REM This is required to enable the web_sys clipboard API which egui_web uses
+@REM https://rustwasm.github.io/wasm-bindgen/api/web_sys/struct.Clipboard.html
+@REM https://rustwasm.github.io/docs/wasm-bindgen/web-sys/unstable-apis.html
+SET RUSTFLAGS=--cfg=web_sys_unstable_apis
+
+@REM Clear output from old stuff:
+DEL /F docs\%CRATE_NAME_SNAKE_CASE%_bg.wasm
+
+echo Building rust...
+SET BUILD=release
+cargo build -p %CRATE_NAME% --release --lib --target wasm32-unknown-unknown
+
+@REM Get the output directory (in the workspace it is in another location)
+FOR /F %%i IN ('cargo metadata --format-version=1 ^| jq --raw-output .target_directory') DO SET TARGET=%%i
+
+echo Generating JS bindings for wasm...
+SET TARGET_NAME=%CRATE_NAME_SNAKE_CASE%.wasm
+wasm-bindgen "%TARGET%\wasm32-unknown-unknown\%BUILD%\%TARGET_NAME%" --out-dir "docs" --no-modules --no-typescript
+
+IF %FAST% == 0 (
+  echo Optimizing wasm...
+  @REM to get wasm-opt:  apt/brew/dnf install binaryen
+  @REM add -g to get debug symbols :
+  wasm-opt "docs\%CRATE_NAME%_bg.wasm" -O2 --fast-math -o "docs\%CRATE_NAME%_bg.wasm"
+)
+
+echo Finished: docs/%CRATE_NAME_SNAKE_CASE%.wasm"
+
+IF %OPEN% == 1 start http://localhost:8080/index.html
+
+GOTO end_program
+
+:print_help
+echo build_web.sh [--fast] [--open]
+echo   --fast: skip optimization step
+echo   --open: open the result in a browser
+GOTO end_program
+
+:end_program

setup_web.bat

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+@REM Pre-requisites:
+rustup target add wasm32-unknown-unknown
+cargo install wasm-bindgen-cli
+cargo update -p wasm-bindgen
+
+@REM For local tests with `./start_server`:
+cargo install basic-http-server

start_server.bat

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+@echo off
+
+@REM Starts a local web-server that serves the contents of the `doc/` folder,
+@REM which is the folder to where the web version is compiled.
+
+cargo install basic-http-server
+
+echo "open http://localhost:8080"
+
+(cd docs && basic-http-server --addr 127.0.0.1:8080 .)
+@REM (cd docs && python3 -m http.server 8080 --bind 127.0.0.1)