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improve install_nim script

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stubbsta 2026-05-21 12:25:12 +02:00
parent 9ba2e45697
commit 78677770f8
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1 changed files with 23 additions and 19 deletions
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42
scripts/install_nim.sh
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@ -17,26 +17,28 @@ if [ -z "${NIM_VERSION}" ]; then
exit 1
fi
# Check if the right version is already installed
nim_ver=$(nim --version 2>/dev/null | head -1 | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 || true)
if [ "${nim_ver}" = "${NIM_VERSION}" ]; then
echo "Nim ${NIM_VERSION} already installed, skipping."
NIM_DEST="${HOME}/.nim/nim-${NIM_VERSION}"
# Check if nim is already installed at our expected location (not just anywhere in PATH).
# Checking PATH version is not sufficient: a system-installed nim of the right version
# won't have its stdlib at ${NIM_DEST}/lib/, causing downstream compilation failures.
if [ -f "${NIM_DEST}/lib/system.nim" ]; then
echo "Nim ${NIM_VERSION} already installed at ${NIM_DEST}, re-linking binaries."
mkdir -p "${HOME}/.nimble/bin"
for bin_path in "${NIM_DEST}/bin/"*; do
ln -sf "${bin_path}" "${HOME}/.nimble/bin/$(basename "${bin_path}")"
done
exit 0
fi
if [ -n "${nim_ver}" ]; then
newer=$(printf '%s\n%s\n' "${NIM_VERSION}" "${nim_ver}" | sort -V | tail -1)
if [ "${newer}" = "${nim_ver}" ]; then
echo "WARNING: Nim ${nim_ver} is installed; this repo is validated against ${NIM_VERSION}." >&2
echo "WARNING: The build will proceed but may behave differently." >&2
exit 0
fi
nim_ver=$(nim --version 2>/dev/null | head -1 | grep -oE '[0-9]+\.[0-9]+\.[0-9]+' | head -1 || true)
if [ -n "${nim_ver}" ] && [ "${nim_ver}" != "${NIM_VERSION}" ]; then
echo "INFO: Nim ${nim_ver} found in PATH; installing Nim ${NIM_VERSION} to ${NIM_DEST}." >&2
fi
OS=$(uname -s | tr 'A-Z' 'a-z' | sed 's/darwin/macosx/')
ARCH=$(uname -m | sed 's/x86_64/x64/;s/aarch64/arm64/')
NIM_DEST="${HOME}/.nim/nim-${NIM_VERSION}"
BINARY_URL="https://nim-lang.org/download/nim-${NIM_VERSION}-${OS}_${ARCH}.tar.xz"
WORK_DIR=$(mktemp -d)
trap 'rm -rf "${WORK_DIR}"' EXIT
@ -48,9 +50,7 @@ if [ "${HTTP_STATUS}" = "200" ]; then
echo "Downloading pre-built binary from ${BINARY_URL}..."
curl -fL "${BINARY_URL}" -o "${WORK_DIR}/nim.tar.xz"
tar -xJf "${WORK_DIR}/nim.tar.xz" -C "${WORK_DIR}"
rm -rf "${NIM_DEST}"
mkdir -p "${HOME}/.nim"
cp -r "${WORK_DIR}/nim-${NIM_VERSION}" "${NIM_DEST}"
SRC_DIR="${WORK_DIR}/nim-${NIM_VERSION}"
else
echo "No pre-built binary found for ${OS}_${ARCH}. Building from source..."
SRC_URL="https://github.com/nim-lang/Nim/archive/refs/tags/v${NIM_VERSION}.tar.gz"
@ -58,15 +58,19 @@ else
tar -xzf "${WORK_DIR}/nim-src.tar.gz" -C "${WORK_DIR}"
cd "${WORK_DIR}/Nim-${NIM_VERSION}"
sh build_all.sh
rm -rf "${NIM_DEST}"
mkdir -p "${HOME}/.nim"
cp -r "${WORK_DIR}/Nim-${NIM_VERSION}" "${NIM_DEST}"
SRC_DIR="${WORK_DIR}/Nim-${NIM_VERSION}"
fi
# rm -rf can fail with "Directory not empty" on overlay filesystems (e.g. Docker).
# Using cp -r src/. dst/ handles both cases: dst absent (clean) or partially present.
rm -rf "${NIM_DEST}" 2>/dev/null || true
mkdir -p "${NIM_DEST}"
cp -r "${SRC_DIR}/." "${NIM_DEST}/"
mkdir -p "${HOME}/.nimble/bin"
for bin_path in "${NIM_DEST}/bin/"*; do
ln -sf "${bin_path}" "${HOME}/.nimble/bin/$(basename "${bin_path}")"
done
echo "Nim ${NIM_VERSION} installed to ${NIM_DEST}"
echo "Binaries symlinked in ~/.nimble/bin — ensure it is in your PATH."
echo "Binaries symlinked in ~/.nimble/bin — ensure it is in your PATH."