ops: adapt script to work on windows

.gitattributes

@@ -0,0 +1,3 @@
+# Shell scripts and the Justfile must stay LF so they run in Git Bash on Windows.
+*.sh text eol=lf
+Justfile text eol=lf

scripts/bootstrap.sh

@@ -1,14 +1,16 @@
 #!/usr/bin/env bash
 # Bootstrap the pinned toolchain (Calepin + Typst) into tools/.
 # Idempotent: skips downloads when the binaries are already in place.
+# Supports x86_64 Linux and Windows (run through Git Bash / MSYS2).
 set -euo pipefail
 
 # Pinned toolchain -- bump both binaries together and re-verify checksums.
 calepin_version="0.0.61"
 typst_version="0.15.1"
-# Typst publishes no .sha256 assets; this digest comes from the official
-# release metadata (GitHub asset digest of typst-x86_64-unknown-linux-musl.tar.xz).
-typst_sha256="a6d077d0a95eed5a2eba715b2dae06be954f624ccbf85758a03f389ded33118c"
+# Typst publishes no .sha256 assets; these digests come from the official
+# release metadata (GitHub asset digests of the downloads below).
+typst_sha256_linux="a6d077d0a95eed5a2eba715b2dae06be954f624ccbf85758a03f389ded33118c"
+typst_sha256_windows="19ce3551153c2fe7ee9fa2f95208310c8f4d3209fedb699e0333faf8913f6736"
 
 root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 tools="$root/tools"
@@ -18,26 +20,83 @@ if [ "$(uname -m)" != "x86_64" ]; then
     exit 1
 fi
 
+case "$(uname -s)" in
+    Linux*)
+        exe=""
+        calepin_name="calepin-x86_64-unknown-linux-gnu.tar.xz"
+        typst_name="typst-x86_64-unknown-linux-musl.tar.xz"
+        typst_sha256="$typst_sha256_linux"
+        ;;
+    MINGW*|MSYS*|CYGWIN*)
+        exe=".exe"
+        calepin_name="calepin-x86_64-pc-windows-msvc.zip"
+        typst_name="typst-x86_64-pc-windows-msvc.zip"
+        typst_sha256="$typst_sha256_windows"
+        ;;
+    *)
+        echo "error: unsupported operating system $(uname -s)" >&2
+        exit 1
+        ;;
+esac
+
+# Extract a single binary from a zip into tools/. The zip may or may not nest
+# it in a top-level directory. Git Bash ships no unzip, so fall back to the
+# bsdtar.exe bundled with Windows 10+.
+install_zip_binary() {
+    local archive="$1" bin="$2"
+    local tmp="$tools/.extract"
+    rm -rf "$tmp"
+    mkdir -p "$tmp"
+    if command -v unzip >/dev/null 2>&1; then
+        unzip -q -o "$archive" -d "$tmp"
+    else
+        local wintar=""
+        if command -v cygpath >/dev/null 2>&1; then
+            wintar="$(cygpath -u "${SYSTEMROOT:-C:/Windows}")/System32/tar.exe"
+        fi
+        if [ -z "$wintar" ] || [ ! -x "$wintar" ]; then
+            echo "error: extracting $archive needs unzip or Windows tar.exe" >&2
+            return 1
+        fi
+        "$wintar" -xf "$archive" -C "$tmp"
+    fi
+    local found
+    found="$(find "$tmp" -type f -name "$bin" -print -quit)"
+    if [ -z "$found" ]; then
+        echo "error: $bin not found in $archive" >&2
+        return 1
+    fi
+    mv "$found" "$tools/$bin"
+    rm -rf "$tmp"
+}
+
 mkdir -p "$tools"
 
-if [ ! -x "$tools/calepin" ]; then
-    name="calepin-x86_64-unknown-linux-gnu.tar.xz"
+if [ ! -x "$tools/calepin$exe" ]; then
+    # Calepin publishes .sha256 assets next to its downloads.
     base="https://github.com/vincentarelbundock/calepin/releases/download/v$calepin_version"
-    curl -fsSLo "$tools/$name" "$base/$name"
-    curl -fsSLo "$tools/$name.sha256" "$base/$name.sha256"
-    (cd "$tools" && sha256sum -c "$name.sha256")
-    tar -xJf "$tools/$name" -C "$tools" --strip-components=1 "calepin-x86_64-unknown-linux-gnu/calepin"
-    rm "$tools/$name" "$tools/$name.sha256"
+    curl -fsSLo "$tools/$calepin_name" "$base/$calepin_name"
+    curl -fsSLo "$tools/$calepin_name.sha256" "$base/$calepin_name.sha256"
+    (cd "$tools" && sha256sum -c "$calepin_name.sha256")
+    if [ "$exe" ]; then
+        install_zip_binary "$tools/$calepin_name" "calepin.exe"
+    else
+        tar -xJf "$tools/$calepin_name" -C "$tools" --strip-components=1 "${calepin_name%.tar.xz}/calepin"
+    fi
+    rm "$tools/$calepin_name" "$tools/$calepin_name.sha256"
 fi
 
-if [ ! -x "$tools/typst" ]; then
-    name="typst-x86_64-unknown-linux-musl.tar.xz"
-    curl -fsSLo "$tools/$name" "https://github.com/typst/typst/releases/download/v$typst_version/$name"
-    echo "$typst_sha256  $name" > "$tools/$name.sha256"
-    (cd "$tools" && sha256sum -c "$name.sha256")
-    tar -xJf "$tools/$name" -C "$tools" --strip-components=1 "typst-x86_64-unknown-linux-musl/typst"
-    rm "$tools/$name" "$tools/$name.sha256"
+if [ ! -x "$tools/typst$exe" ]; then
+    curl -fsSLo "$tools/$typst_name" "https://github.com/typst/typst/releases/download/v$typst_version/$typst_name"
+    echo "$typst_sha256  $typst_name" > "$tools/$typst_name.sha256"
+    (cd "$tools" && sha256sum -c "$typst_name.sha256")
+    if [ "$exe" ]; then
+        install_zip_binary "$tools/$typst_name" "typst.exe"
+    else
+        tar -xJf "$tools/$typst_name" -C "$tools" --strip-components=1 "${typst_name%.tar.xz}/typst"
+    fi
+    rm "$tools/$typst_name" "$tools/$typst_name.sha256"
 fi
 
-"$tools/calepin" --version
-"$tools/typst" --version
+"$tools/calepin$exe" --version
+"$tools/typst$exe" --version

scripts/calepin.sh

@@ -4,9 +4,14 @@ set -euo pipefail
 
 root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
 
-if [ ! -x "$root/tools/calepin" ]; then
+exe=""
+case "$(uname -s)" in
+    MINGW*|MSYS*|CYGWIN*) exe=".exe" ;;
+esac
+
+if [ ! -x "$root/tools/calepin$exe" ]; then
     "$root/scripts/bootstrap.sh"
 fi
 
 export PATH="$root/tools:$PATH"
-exec "$root/tools/calepin" "$@"
+exec "$root/tools/calepin$exe" "$@"