85 lines
2.9 KiB
Bash
Executable File
85 lines
2.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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# This script is used by the Makefile to have an implicit nix-shell.
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# The following environment variables modify the script behavior:
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# - TARGET: This attribute is passed via --attr to Nix, defining the scope.
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# - _NIX_PURE: This variable allows for making the shell pure with the use of --pure.
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# Take note that this makes Nix tools like `nix-build` unavailable in the shell.
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# - _NIX_KEEP: This variable allows specifying which env vars to keep for Nix pure shell.
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GIT_ROOT=$(cd "${BASH_SOURCE%/*}" && git rev-parse --show-toplevel)
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source "${GIT_ROOT}/scripts/colors.sh"
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source "${GIT_ROOT}/nix/scripts/source.sh"
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export TERM=xterm # fix for colors
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shift # we remove the first -c from arguments
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if [[ -z "${TARGET}" ]]; then
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export TARGET="default"
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echo -e "${YLW}Missing TARGET, assuming default target.${RST} See nix/README.md for more details." 1>&2
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fi
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# Minimal shell with just Nix sourced, useful for `make nix-gc`.
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if [[ "${TARGET}" == "nix" ]]; then
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eval $@
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exit 0
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fi
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if [[ -n "${IN_NIX_SHELL}" ]] && [[ -n "${NIX_SHELL_TARGET}" ]]; then
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if [[ "${NIX_SHELL_TARGET}" == "${TARGET}" ]]; then
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echo -e "${YLW}Nix shell for TARGET=${TARGET} is already active.${RST}" >&2
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exit 0
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else
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# Nesting nix shells does not work due to how we detect already present shell.
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echo -e "${RED}Cannot nest Nix shells with different targets!${RST}" >&2
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exit 1
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fi
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fi
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entryPoint="default.nix"
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nixArgs=(
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"--show-trace"
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"--attr shells.${TARGET}"
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)
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config=''
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if [[ -n "${STATUS_GO_SRC_OVERRIDE}" ]]; then
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config+="status-im.status-go.src-override=\"${STATUS_GO_SRC_OVERRIDE}\";"
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fi
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config+="status-im.build-type=\"${BUILD_TYPE}\";"
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if [[ -n "$config" ]]; then
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nixArgs+=("--arg config {$config}")
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fi
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# This variable allows specifying which env vars to keep for Nix pure shell
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# The separator is a colon
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if [[ -n "${_NIX_KEEP}" ]]; then
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nixArgs+=("--keep ${_NIX_KEEP//,/ --keep }")
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fi
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# Not all builds are ready to be run in a pure environment
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if [[ -n "${_NIX_PURE}" ]]; then
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nixArgs+=("--pure")
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pureDesc='pure '
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fi
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# Hack fix for missing Android SDK for aarch64 on Darwin. See systemOverride in `nix/pkgs.nix`.
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if [[ "${TARGET}" =~ ^(android-sdk|android|gradle|keytool|status-go)$ ]]; then
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os=$(uname -s | tr '[:upper:]' '[:lower:]')
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export NIXPKGS_SYSTEM_OVERRIDE="x86_64-${os}"
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fi
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echo -e "${GRN}Configuring ${pureDesc}Nix shell for target '${TARGET}'...${RST}" 1>&2
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# Save derivation from being garbage collected
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"${GIT_ROOT}/nix/scripts/gcroots.sh" "shells.${TARGET}"
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# ENTER_NIX_SHELL is the fake command used when `make shell` is run.
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# It is just a special string, not a variable, and a marker to not use `--run`.
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if [[ "${@}" == "ENTER_NIX_SHELL" ]]; then
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export NIX_SHELL_TARGET="${TARGET}"
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exec nix-shell ${nixArgs[@]} --keep NIX_SHELL_TARGET ${entryPoint}
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else
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exec nix-shell ${nixArgs[@]} --run "$@" ${entryPoint}
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fi
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