177 lines
4.2 KiB
Bash
177 lines
4.2 KiB
Bash
# -----
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# The following is copied from upstream bin/brew
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# Copyright (c) 2009-present, Homebrew contributors
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# -----
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# nix-homebrew:
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# Run scripts/update-brew-tail.sh to update this
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# Load Homebrew's variable configuration files from disk.
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export_homebrew_env_file() {
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local env_file
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env_file="${1}"
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[[ -r "${env_file}" ]] || return 0
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while read -r line
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do
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# only load HOMEBREW_* lines
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[[ "${line}" = "HOMEBREW_"* ]] || continue
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export "${line?}"
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done <"${env_file}"
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}
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# First, load the system-wide configuration.
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unset SYSTEM_ENV_TAKES_PRIORITY
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if [[ -n "${HOMEBREW_SYSTEM_ENV_TAKES_PRIORITY-}" ]]
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then
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SYSTEM_ENV_TAKES_PRIORITY="1"
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else
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export_homebrew_env_file "/etc/homebrew/brew.env"
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fi
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# Next, load the prefix configuration
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export_homebrew_env_file "${HOMEBREW_PREFIX}/etc/homebrew/brew.env"
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# Finally, load the user configuration
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if [[ -n "${XDG_CONFIG_HOME-}" ]]
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then
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HOMEBREW_USER_CONFIG_HOME="${XDG_CONFIG_HOME}/homebrew"
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else
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HOMEBREW_USER_CONFIG_HOME="${HOME}/.homebrew"
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fi
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export_homebrew_env_file "${HOMEBREW_USER_CONFIG_HOME}/brew.env"
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# If the system configuration takes priority, load it last.
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if [[ -n "${SYSTEM_ENV_TAKES_PRIORITY-}" ]]
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then
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export_homebrew_env_file "/etc/homebrew/brew.env"
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fi
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# Copy and export all HOMEBREW_* variables previously mentioned in
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# manpage or used elsewhere by Homebrew.
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# These variables are allowed to be set by the user as, e.g., `HOMEBREW_BROWSER`.
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MANPAGE_VARS=(
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BAT_CONFIG_PATH
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BAT_THEME
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BROWSER
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BUNDLE_USER_CACHE
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DISPLAY
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EDITOR
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NO_COLOR
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)
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for VAR in "${MANPAGE_VARS[@]}"
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do
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# Skip if variable value is empty.
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[[ -z "${!VAR:-}" ]] && continue
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VAR_NEW="HOMEBREW_${VAR}"
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# Skip if existing HOMEBREW_* variable is set.
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[[ -n "${!VAR_NEW:-}" ]] && continue
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export "${VAR_NEW}"="${!VAR}"
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done
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# We don't want to take the user's value for, e.g., `HOMEBREW_PATH` here!
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USED_BY_HOMEBREW_VARS=(
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CODESPACES
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COLORTERM
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DBUS_SESSION_BUS_ADDRESS
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NODENV_ROOT
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PATH
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PYENV_ROOT
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RBENV_ROOT
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SSH_TTY
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SUDO_USER
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TMPDIR
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TMUX
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XDG_CACHE_HOME
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XDG_DATA_DIRS
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XDG_RUNTIME_DIR
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ZDOTDIR
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)
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for VAR in "${USED_BY_HOMEBREW_VARS[@]}"
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do
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# Skip if variable value is empty.
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[[ -z "${!VAR:-}" ]] && continue
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# We unconditionally override `HOMEBREW_*` here.
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VAR_NEW="HOMEBREW_${VAR}"
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export "${VAR_NEW}"="${!VAR}"
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done
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unset VAR VAR_NEW MANPAGE_VARS USED_BY_HOMEBREW_VARS
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export HOMEBREW_BREW_FILE
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export HOMEBREW_PREFIX
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export HOMEBREW_REPOSITORY
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export HOMEBREW_LIBRARY
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export HOMEBREW_USER_CONFIG_HOME
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# set from user environment
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# shellcheck disable=SC2154
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# Use VISUAL if HOMEBREW_EDITOR and EDITOR are unset.
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if [[ -z "${HOMEBREW_EDITOR:-}" && -n "${VISUAL:-}" ]]
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then
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export HOMEBREW_EDITOR="${VISUAL}"
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fi
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# set from user environment
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# shellcheck disable=SC2154
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# Set CI variable for Azure Pipelines and Jenkins
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# (Set by default on GitHub Actions, Circle and Travis CI)
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if [[ -z "${CI:-}" ]] && [[ -n "${TF_BUILD:-}" || -n "${JENKINS_HOME:-}" ]]
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then
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export CI="1"
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fi
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if [[ -n "${GITHUB_ACTIONS:-}" && -n "${ImageOS:-}" && -n "${ImageVersion:-}" ]]
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then
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export HOMEBREW_GITHUB_HOSTED_RUNNER=1
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fi
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# filter the user environment
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PATH="@runtimePath@:/usr/bin:/bin:/usr/sbin:/sbin"
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FILTERED_ENV=()
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ENV_VAR_NAMES=(
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HOME SHELL PATH TERM TERMINFO TERMINFO_DIRS COLUMNS DISPLAY LOGNAME USER CI SSH_AUTH_SOCK SUDO_ASKPASS
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http_proxy https_proxy ftp_proxy no_proxy all_proxy HTTPS_PROXY FTP_PROXY ALL_PROXY
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)
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# Filter all but the specific variables.
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for VAR in "${ENV_VAR_NAMES[@]}" "${!HOMEBREW_@}"
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do
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# Skip if variable value is empty.
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[[ -z "${!VAR:-}" ]] && continue
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FILTERED_ENV+=("${VAR}=${!VAR}")
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done
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if [[ -n "${CI:-}" ]]
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then
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for VAR in "${!GITHUB_@}"
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do
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# Skip if variable value is empty.
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[[ -z "${!VAR:-}" ]] && continue
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# Skip variables that look like tokens.
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[[ "${VAR}" = *TOKEN* ]] && continue
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FILTERED_ENV+=("${VAR}=${!VAR}")
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done
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fi
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if [[ -n "${HOMEBREW_RDBG:-}" ]]
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then
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for VAR in "${!RUBY_DEBUG_@}"
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do
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# Skip if variable value is empty.
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[[ -z "${!VAR:-}" ]] && continue
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FILTERED_ENV+=("${VAR}=${!VAR}")
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done
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fi
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unset VAR ENV_VAR_NAMES
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exec /usr/bin/env -i "${FILTERED_ENV[@]}" /bin/bash -p "${HOMEBREW_LIBRARY}/Homebrew/brew.sh" "$@"
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