migrate to standalone zine

assets/install

@@ -0,0 +1,150 @@
+#!/bin/sh
+set -e
+
+install_dir="${PREFIX:-/usr/local}/bin"
+tmp_path="${TMPDIR:-/tmp}"
+add_alias=${ALIAS:-0}
+nightly=${NIGHTLY:-0}
+verify=${VERIFY:-0}
+local=${LOCAL:-0}
+
+while true; do
+    case "${1}" in
+    -a | --alias)
+        add_alias=1
+        shift 1
+        ;;
+    -n | --nightly)
+        nightly=1
+        shift 1
+        ;;
+    -p | --prefix)
+        install_dir=/$2
+        shift 2
+        ;;
+    -V | --verify)
+        verify=1
+        shift 1
+        ;;
+    -l | --local)
+        local=1
+        shift 1
+        ;;
+    --)
+        shift 1
+        break
+        ;;
+    *) break ;;
+    esac
+done
+
+# prompt for nightly build option if interactive
+if [ "$nightly" -eq 0 ] && [ -t 0 ]; then
+    printf "do you want to install a Nightly build? [y/N]: "
+    read -r answer_nightly
+    if [ "$answer_nightly" = "y" ] || [ "$answer_nightly" = "Y" ]; then
+        nightly=1
+    fi
+fi
+
+if [ "$nightly" -eq 1 ]; then
+    repo="neurocyte/flow-nightly"
+else
+    repo="neurocyte/flow"
+fi
+
+# detect os and architecture
+os="$(uname -s | tr '[:upper:]' '[:lower:]')"
+if [ "$os" = "darwin" ]; then
+    os="macos"
+fi
+
+arch="$(uname -m)"
+case "$arch" in
+x86_64) arch="x86_64" ;;
+arm64) arch="aarch64" ;;
+i686) arch="x86" ;;
+i386) arch="x86" ;;
+esac
+
+# get latest version tag from github releases api
+version=$(curl -s "https://api.github.com/repos/$repo/releases/latest" | grep '"tag_name":' | cut -d'"' -f4)
+[ -z "$version" ] && {
+    echo "failed to fetch latest version"
+    exit 1
+}
+
+# construct download url
+# note: nightly assets are named like "flow-<version>-<os>-<arch>.<ext>"
+filename="flow-$version-$os-$arch"
+ext="tar.gz"
+if [ "$os" = "windows" ]; then
+    ext="zip"
+fi
+url="https://github.com/$repo/releases/download/$version/$filename.$ext"
+
+if [ "$nightly" -eq 1 ]; then
+    echo "downloading NIGHTLY build $version..."
+else
+    echo "downloading flow $version..."
+fi
+
+curl -fL "$url" -o "$tmp_path/$filename.$ext"
+
+# simple file size check (adjust threshold if needed)
+filesize=$(stat -c%s "$tmp_path/$filename.$ext" 2>/dev/null || stat -f%z "$tmp_path/$filename.$ext")
+if [ "$filesize" -lt 100 ]; then
+    echo "downloaded file appears to be invalid (size: ${filesize} bytes)"
+    exit 1
+fi
+
+if [ "$verify" -eq 0 ] && [ -t 0 ]; then
+    printf "do you want to download and verify the gpg signature? [y/N]: "
+    read -r answer_verify
+    if [ "$answer_verify" = "y" ] || [ "$answer_verify" = "Y" ]; then
+        verify=1
+    fi
+fi
+
+if [ "$verify" -eq 1 ]; then
+    curl -fL "$url.sig" -o "$tmp_path/$filename.$ext.sig"
+    curl -fL 'https://flow-control.dev/public.gpg' -o "$tmp_path/flow-control-public.gpg"
+    gpg --no-default-keyring --keyring "$tmp_path/flow-control-public.gpg" --verify "$tmp_path/$filename.$ext.sig" "$tmp_path/$filename.$ext"
+
+    if [ "$local" -eq 1 ]; then
+        gpg --verify "$tmp_path/$filename.$ext.sig" "$tmp_path/$filename.$ext"
+    fi
+
+    rm "$tmp_path/flow-control-public.gpg"
+    rm "$tmp_path/$filename.$ext.sig"
+fi
+
+echo "installing $([ "$nightly" -eq 1 ] && echo 'NIGHTLY build' || echo 'flow')..."
+if [ "$ext" = "tar.gz" ]; then
+    tar -xzf "$tmp_path/$filename.$ext" -C "$install_dir"
+else
+    unzip -o "$tmp_path/$filename.$ext" -d "$install_dir"
+fi
+
+chmod +x "$install_dir/flow"
+rm "$tmp_path/$filename.$ext"
+echo "$([ "$nightly" -eq 1 ] && echo 'NIGHTLY build' || echo 'flow') installed successfully!"
+
+create_alias() {
+    if [ -e "$install_dir/f" ]; then
+        echo "warning: existing file or alias detected at $install_dir/f, overwriting..."
+        rm -f "$install_dir/f"
+    fi
+    ln -s "$install_dir/flow" "$install_dir/f"
+    echo "alias 'f' created successfully!"
+}
+
+if [ "$add_alias" -eq 1 ]; then
+    create_alias
+elif [ -t 0 ] && [ "$add_alias" -eq 0 ]; then
+    printf "do you want to create an alias 'f' for 'flow'? [y/N]: "
+    read -r answer_alias
+    if [ "$answer_alias" = "y" ] || [ "$answer_alias" = "Y" ]; then
+        create_alias
+    fi
+fi