64 lines
1.8 KiB
Bash
64 lines
1.8 KiB
Bash
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#!/usr/bin/env bash
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if [[ -n "${PKGMGR_NIX_INSTALL_SH:-}" ]]; then
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return 0
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fi
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PKGMGR_NIX_INSTALL_SH=1
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# Requires: NIX_INSTALL_URL, NIX_DOWNLOAD_MAX_TIME, NIX_DOWNLOAD_SLEEP_INTERVAL
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# Download and run Nix installer with retry
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# Usage: install_nix_with_retry daemon|no-daemon [run_as_user]
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install_nix_with_retry() {
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local mode="$1"
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local run_as="${2:-}"
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local installer elapsed=0 mode_flag
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case "$mode" in
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daemon) mode_flag="--daemon" ;;
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no-daemon) mode_flag="--no-daemon" ;;
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*)
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echo "[init-nix] ERROR: Invalid mode '$mode' (expected 'daemon' or 'no-daemon')."
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exit 1
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;;
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esac
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installer="$(mktemp -t nix-installer.XXXXXX)"
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chmod 0644 "$installer"
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echo "[init-nix] Downloading Nix installer from $NIX_INSTALL_URL (max ${NIX_DOWNLOAD_MAX_TIME}s)..."
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while true; do
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if curl -fL "$NIX_INSTALL_URL" -o "$installer"; then
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echo "[init-nix] Successfully downloaded installer to $installer"
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break
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fi
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elapsed=$((elapsed + NIX_DOWNLOAD_SLEEP_INTERVAL))
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echo "[init-nix] WARNING: Download failed. Retrying in ${NIX_DOWNLOAD_SLEEP_INTERVAL}s (elapsed ${elapsed}s)..."
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if (( elapsed >= NIX_DOWNLOAD_MAX_TIME )); then
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echo "[init-nix] ERROR: Giving up after ${elapsed}s trying to download Nix installer."
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rm -f "$installer"
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exit 1
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fi
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sleep "$NIX_DOWNLOAD_SLEEP_INTERVAL"
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done
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if [[ -n "$run_as" ]]; then
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chown "$run_as:$run_as" "$installer" 2>/dev/null || true
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echo "[init-nix] Running installer as user '$run_as' ($mode_flag)..."
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if command -v sudo >/dev/null 2>&1; then
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sudo -u "$run_as" bash -lc "sh '$installer' $mode_flag"
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else
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su - "$run_as" -c "sh '$installer' $mode_flag"
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fi
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else
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echo "[init-nix] Running installer as current user ($mode_flag)..."
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sh "$installer" "$mode_flag"
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fi
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rm -f "$installer"
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}
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