25b4d94b5c
This forces the use of Homebrew's Git on El Capitan and below. Normally I'd remove the need for this but given we're weeks away from El Capitan being unsupported it doesn't seem worth the effort to remove useful functionality. Instead, let's warn about an old Git and autoinstall Homebrew's Git wherever needed. Fixes #4818.
416 lines
13 KiB
Bash
416 lines
13 KiB
Bash
# Force UTF-8 to avoid encoding issues for users with broken locale settings.
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if [[ "$(locale charmap 2>/dev/null)" != "UTF-8" ]]
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then
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export LC_ALL="en_US.UTF-8"
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fi
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# Where we store built products; a Cellar in HOMEBREW_PREFIX (often /usr/local
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# for bottles) unless there's already a Cellar in HOMEBREW_REPOSITORY.
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if [[ -d "$HOMEBREW_REPOSITORY/Cellar" ]]
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then
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HOMEBREW_CELLAR="$HOMEBREW_REPOSITORY/Cellar"
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else
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HOMEBREW_CELLAR="$HOMEBREW_PREFIX/Cellar"
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fi
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case "$*" in
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--prefix) echo "$HOMEBREW_PREFIX"; exit 0 ;;
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--cellar) echo "$HOMEBREW_CELLAR"; exit 0 ;;
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--repository|--repo) echo "$HOMEBREW_REPOSITORY"; exit 0 ;;
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esac
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# A depth of 1 means this command was directly invoked by a user.
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# Higher depths mean this command was invoked by another Homebrew command.
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export HOMEBREW_COMMAND_DEPTH=$((HOMEBREW_COMMAND_DEPTH + 1))
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onoe() {
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if [[ -t 2 ]] # check whether stderr is a tty.
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then
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echo -ne "\033[4;31mError\033[0m: " >&2 # highlight Error with underline and red color
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else
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echo -n "Error: " >&2
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fi
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if [[ $# -eq 0 ]]
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then
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cat >&2
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else
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echo "$*" >&2
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fi
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}
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odie() {
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onoe "$@"
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exit 1
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}
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safe_cd() {
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cd "$@" >/dev/null || odie "Error: failed to cd to $*!"
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}
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brew() {
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"$HOMEBREW_BREW_FILE" "$@"
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}
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git() {
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"$HOMEBREW_LIBRARY/Homebrew/shims/scm/git" "$@"
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}
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HOMEBREW_VERSION="$(git -C "$HOMEBREW_REPOSITORY" describe --tags --dirty --abbrev=7 2>/dev/null)"
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HOMEBREW_USER_AGENT_VERSION="$HOMEBREW_VERSION"
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if [[ -z "$HOMEBREW_VERSION" ]]
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then
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HOMEBREW_VERSION=">=1.7.1 (shallow or no git repository)"
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HOMEBREW_USER_AGENT_VERSION="1.X.Y"
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fi
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if [[ "$HOMEBREW_PREFIX" = "/" || "$HOMEBREW_PREFIX" = "/usr" ]]
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then
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# it may work, but I only see pain this route and don't want to support it
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odie "Cowardly refusing to continue at this prefix: $HOMEBREW_PREFIX"
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fi
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HOMEBREW_SYSTEM="$(uname -s)"
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case "$HOMEBREW_SYSTEM" in
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Darwin) HOMEBREW_MACOS="1" ;;
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Linux) HOMEBREW_LINUX="1" ;;
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esac
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if [[ -n "$HOMEBREW_MACOS" ]]
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then
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HOMEBREW_PROCESSOR="$(uname -p)"
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HOMEBREW_PRODUCT="Homebrew"
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HOMEBREW_SYSTEM="Macintosh"
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# This is i386 even on x86_64 machines
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[[ "$HOMEBREW_PROCESSOR" = "i386" ]] && HOMEBREW_PROCESSOR="Intel"
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HOMEBREW_MACOS_VERSION="$(/usr/bin/sw_vers -productVersion)"
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HOMEBREW_OS_VERSION="macOS $HOMEBREW_MACOS_VERSION"
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# Don't change this from Mac OS X to match what macOS itself does in Safari on 10.12
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HOMEBREW_OS_USER_AGENT_VERSION="Mac OS X $HOMEBREW_MACOS_VERSION"
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# The system Curl is too old for some modern HTTPS certificates on
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# older macOS versions.
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printf -v HOMEBREW_MACOS_VERSION_NUMERIC "%02d%02d%02d" ${HOMEBREW_MACOS_VERSION//./ }
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if [[ "$HOMEBREW_MACOS_VERSION_NUMERIC" -lt "101000" ]]
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then
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HOMEBREW_SYSTEM_CURL_TOO_OLD="1"
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HOMEBREW_FORCE_BREWED_CURL="1"
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fi
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# The system Git is too old for some Homebrew functionality we rely on.
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if [[ "$HOMEBREW_MACOS_VERSION_NUMERIC" -lt "101200" ]]
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then
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HOMEBREW_FORCE_BREWED_GIT="1"
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fi
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HOMEBREW_CACHE="${HOMEBREW_CACHE:-${HOME}/Library/Caches/Homebrew}"
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HOMEBREW_SYSTEM_TEMP="/private/tmp"
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else
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HOMEBREW_PROCESSOR="$(uname -m)"
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HOMEBREW_PRODUCT="${HOMEBREW_SYSTEM}brew"
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[[ -n "$HOMEBREW_LINUX" ]] && HOMEBREW_OS_VERSION="$(lsb_release -sd 2>/dev/null)"
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: "${HOMEBREW_OS_VERSION:=$(uname -r)}"
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HOMEBREW_OS_USER_AGENT_VERSION="$HOMEBREW_OS_VERSION"
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CACHE_HOME="${XDG_CACHE_HOME:-${HOME}/.cache}"
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HOMEBREW_CACHE="${HOMEBREW_CACHE:-${CACHE_HOME}/Homebrew}"
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HOMEBREW_SYSTEM_TEMP="/tmp"
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fi
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HOMEBREW_TEMP="${HOMEBREW_TEMP:-${HOMEBREW_SYSTEM_TEMP}}"
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if [[ -n "$HOMEBREW_FORCE_BREWED_CURL" &&
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-x "$HOMEBREW_PREFIX/opt/curl/bin/curl" ]] &&
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"$HOMEBREW_PREFIX/opt/curl/bin/curl" --version >/dev/null
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then
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HOMEBREW_CURL="$HOMEBREW_PREFIX/opt/curl/bin/curl"
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elif [[ -n "$HOMEBREW_DEVELOPER" && -x "$HOMEBREW_CURL_PATH" ]]
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then
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HOMEBREW_CURL="$HOMEBREW_CURL_PATH"
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else
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HOMEBREW_CURL="curl"
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fi
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if [[ -n "$HOMEBREW_FORCE_BREWED_GIT" &&
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-x "$HOMEBREW_PREFIX/opt/git/bin/git" ]] &&
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"$HOMEBREW_PREFIX/opt/git/bin/git" --version >/dev/null
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then
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HOMEBREW_GIT="$HOMEBREW_PREFIX/opt/git/bin/git"
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elif [[ -n "$HOMEBREW_DEVELOPER" && -x "$HOMEBREW_GIT_PATH" ]]
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then
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HOMEBREW_GIT="$HOMEBREW_GIT_PATH"
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else
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HOMEBREW_GIT="git"
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fi
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HOMEBREW_USER_AGENT="$HOMEBREW_PRODUCT/$HOMEBREW_USER_AGENT_VERSION ($HOMEBREW_SYSTEM; $HOMEBREW_PROCESSOR $HOMEBREW_OS_USER_AGENT_VERSION)"
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HOMEBREW_CURL_VERSION="$("$HOMEBREW_CURL" --version 2>/dev/null | head -n1 | awk '{print $1"/"$2}')"
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HOMEBREW_USER_AGENT_CURL="$HOMEBREW_USER_AGENT $HOMEBREW_CURL_VERSION"
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# Declared in bin/brew
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export HOMEBREW_BREW_FILE
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export HOMEBREW_PREFIX
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export HOMEBREW_REPOSITORY
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export HOMEBREW_LIBRARY
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export HOMEBREW_SYSTEM_TEMP
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export HOMEBREW_TEMP
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# Declared in brew.sh
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export HOMEBREW_VERSION
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export HOMEBREW_CACHE
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export HOMEBREW_CELLAR
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export HOMEBREW_SYSTEM
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export HOMEBREW_CURL
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export HOMEBREW_GIT
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export HOMEBREW_PROCESSOR
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export HOMEBREW_PRODUCT
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export HOMEBREW_OS_VERSION
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export HOMEBREW_MACOS_VERSION
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export HOMEBREW_USER_AGENT
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export HOMEBREW_USER_AGENT_CURL
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if [[ -n "$HOMEBREW_MACOS" && -x "/usr/bin/xcode-select" ]]
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then
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XCODE_SELECT_PATH=$('/usr/bin/xcode-select' --print-path 2>/dev/null)
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if [[ "$XCODE_SELECT_PATH" = "/" ]]
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then
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odie <<EOS
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Your xcode-select path is currently set to '/'.
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This causes the 'xcrun' tool to hang, and can render Homebrew unusable.
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If you are using Xcode, you should:
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sudo xcode-select -switch /Applications/Xcode.app
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Otherwise, you should:
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sudo rm -rf /usr/share/xcode-select
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EOS
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fi
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# Don't check xcrun if Xcode and the CLT aren't installed, as that opens
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# a popup window asking the user to install the CLT
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if [[ -n "$XCODE_SELECT_PATH" ]]
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then
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XCRUN_OUTPUT="$(/usr/bin/xcrun clang 2>&1)"
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XCRUN_STATUS="$?"
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if [[ "$XCRUN_STATUS" -ne 0 && "$XCRUN_OUTPUT" = *license* ]]
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then
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odie <<EOS
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You have not agreed to the Xcode license. Please resolve this by running:
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sudo xcodebuild -license accept
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EOS
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fi
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fi
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fi
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# Many Pathname operations use getwd when they shouldn't, and then throw
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# odd exceptions. Reduce our support burden by showing a user-friendly error.
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if [[ ! -d "$(pwd)" ]]
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then
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odie "The current working directory doesn't exist, cannot proceed."
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fi
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if [[ "$1" = -v ]]
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then
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# Shift the -v to the end of the parameter list
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shift
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set -- "$@" -v
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fi
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for arg in "$@"
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do
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if [[ $arg = "--help" || $arg = "-h" || $arg = "--usage" || $arg = "-?" ]]
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then
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export HOMEBREW_HELP="1"
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break
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fi
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done
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HOMEBREW_ARG_COUNT="$#"
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HOMEBREW_COMMAND="$1"
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shift
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case "$HOMEBREW_COMMAND" in
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ls) HOMEBREW_COMMAND="list" ;;
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homepage) HOMEBREW_COMMAND="home" ;;
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-S) HOMEBREW_COMMAND="search" ;;
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up) HOMEBREW_COMMAND="update" ;;
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ln) HOMEBREW_COMMAND="link" ;;
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instal) HOMEBREW_COMMAND="install" ;; # gem does the same
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uninstal) HOMEBREW_COMMAND="uninstall" ;;
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rm) HOMEBREW_COMMAND="uninstall" ;;
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remove) HOMEBREW_COMMAND="uninstall" ;;
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configure) HOMEBREW_COMMAND="diy" ;;
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abv) HOMEBREW_COMMAND="info" ;;
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dr) HOMEBREW_COMMAND="doctor" ;;
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--repo) HOMEBREW_COMMAND="--repository" ;;
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environment) HOMEBREW_COMMAND="--env" ;;
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--config) HOMEBREW_COMMAND="config" ;;
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-v) HOMEBREW_COMMAND="--version" ;;
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esac
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if [[ "$HOMEBREW_COMMAND" = "cask" ]]
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then
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HOMEBREW_CASK_COMMAND="$1"
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case "$HOMEBREW_CASK_COMMAND" in
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instal) HOMEBREW_CASK_COMMAND="install" ;; # gem does the same
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esac
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fi
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# Set HOMEBREW_DEV_CMD_RUN for users who have run a development command.
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# This makes them behave like HOMEBREW_DEVELOPERs for brew update.
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if [[ -z "$HOMEBREW_DEVELOPER" ]]
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then
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export HOMEBREW_GIT_CONFIG_FILE="$HOMEBREW_REPOSITORY/.git/config"
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HOMEBREW_GIT_CONFIG_DEVELOPERMODE="$(git config --file="$HOMEBREW_GIT_CONFIG_FILE" --get homebrew.devcmdrun 2>/dev/null)"
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if [[ "$HOMEBREW_GIT_CONFIG_DEVELOPERMODE" = "true" ]]
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then
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export HOMEBREW_DEV_CMD_RUN="1"
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fi
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# Don't allow non-developers to customise Ruby warnings.
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unset HOMEBREW_RUBY_WARNINGS
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fi
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if [[ -z "$HOMEBREW_RUBY_WARNINGS" ]]
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then
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export HOMEBREW_RUBY_WARNINGS="-W0"
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fi
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export HOMEBREW_BOTTLE_DEFAULT_DOMAIN="https://homebrew.bintray.com"
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if [[ -z "$HOMEBREW_BOTTLE_DOMAIN" ]]
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then
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export HOMEBREW_BOTTLE_DOMAIN="$HOMEBREW_BOTTLE_DEFAULT_DOMAIN"
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fi
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if [[ -f "$HOMEBREW_LIBRARY/Homebrew/cmd/$HOMEBREW_COMMAND.sh" ]]
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then
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HOMEBREW_BASH_COMMAND="$HOMEBREW_LIBRARY/Homebrew/cmd/$HOMEBREW_COMMAND.sh"
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elif [[ -f "$HOMEBREW_LIBRARY/Homebrew/dev-cmd/$HOMEBREW_COMMAND.sh" ]]
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then
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if [[ -z "$HOMEBREW_DEVELOPER" ]]
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then
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git config --file="$HOMEBREW_GIT_CONFIG_FILE" --replace-all homebrew.devcmdrun true 2>/dev/null
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export HOMEBREW_DEV_CMD_RUN="1"
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fi
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HOMEBREW_BASH_COMMAND="$HOMEBREW_LIBRARY/Homebrew/dev-cmd/$HOMEBREW_COMMAND.sh"
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fi
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check-run-command-as-root() {
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[[ "$(id -u)" = 0 ]] || return
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# Homebrew Services may need `sudo` for system-wide daemons.
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[[ "$HOMEBREW_COMMAND" = "services" ]] && return
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# It's fine to run this as root as it's not changing anything.
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[[ "$HOMEBREW_COMMAND" = "--prefix" ]] && return
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odie <<EOS
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Running Homebrew as root is extremely dangerous and no longer supported.
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As Homebrew does not drop privileges on installation you would be giving all
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build scripts full access to your system.
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EOS
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}
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check-run-command-as-root
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check-prefix-is-not-tmpdir() {
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[[ -z "${HOMEBREW_MACOS}" ]] && return
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if [[ "${HOMEBREW_PREFIX}" = "${HOMEBREW_TEMP}"* ]]
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then
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odie <<EOS
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Your HOMEBREW_PREFIX is in the Homebrew temporary directory, which Homebrew
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uses to store downloads and builds. You can resolve this by installing Homebrew to
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either the standard prefix (/usr/local) or to a non-standard prefix that is not
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in the Homebrew temporary directory.
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EOS
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fi
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}
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check-prefix-is-not-tmpdir
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if [[ "$HOMEBREW_PREFIX" = "/usr/local" &&
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"$HOMEBREW_PREFIX" != "$HOMEBREW_REPOSITORY" &&
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"$HOMEBREW_CELLAR" = "$HOMEBREW_REPOSITORY/Cellar" ]]
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then
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cat >&2 <<EOS
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Warning: your HOMEBREW_PREFIX is set to /usr/local but HOMEBREW_CELLAR is set
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to $HOMEBREW_CELLAR. Your current HOMEBREW_CELLAR location will stop
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you being able to use all the binary packages (bottles) Homebrew provides. We
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recommend you move your HOMEBREW_CELLAR to /usr/local/Cellar which will get you
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access to all bottles."
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EOS
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fi
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# Hide shellcheck complaint:
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# shellcheck source=/dev/null
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source "$HOMEBREW_LIBRARY/Homebrew/utils/analytics.sh"
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setup-analytics
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# Let user know we're still updating Homebrew if brew update --preinstall
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# exceeds 3 seconds.
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update-preinstall-timer() {
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sleep 3
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echo 'Updating Homebrew...' >&2
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}
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update-preinstall() {
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[[ -z "$HOMEBREW_HELP" ]] || return
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[[ -z "$HOMEBREW_NO_AUTO_UPDATE" ]] || return
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[[ -z "$HOMEBREW_AUTO_UPDATE_CHECKED" ]] || return
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[[ -z "$HOMEBREW_UPDATE_PREINSTALL" ]] || return
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if [[ "$HOMEBREW_COMMAND" = "install" || "$HOMEBREW_COMMAND" = "upgrade" || "$HOMEBREW_COMMAND" = "tap" ||
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"$HOMEBREW_CASK_COMMAND" = "install" || "$HOMEBREW_CASK_COMMAND" = "upgrade" ]]
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then
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if [[ -z "$HOMEBREW_VERBOSE" ]]
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then
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update-preinstall-timer &
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timer_pid=$!
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fi
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# Allow auto-update migration now we have a fix in place (below in this function).
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export HOMEBREW_ENABLE_AUTO_UPDATE_MIGRATION="1"
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brew update --preinstall
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if [[ -n "$timer_pid" ]]
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then
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kill "$timer_pid" 2>/dev/null
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wait "$timer_pid" 2>/dev/null
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fi
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fi
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# If brew update --preinstall did a migration then export the new locations.
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if [[ "$HOMEBREW_REPOSITORY" = "/usr/local" &&
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! -d "$HOMEBREW_REPOSITORY/.git" &&
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-d "/usr/local/Homebrew/.git" ]]
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then
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HOMEBREW_REPOSITORY="/usr/local/Homebrew"
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HOMEBREW_LIBRARY="$HOMEBREW_REPOSITORY/Library"
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export HOMEBREW_REPOSITORY
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export HOMEBREW_LIBRARY
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fi
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# If we've checked for updates, we don't need to check again.
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export HOMEBREW_AUTO_UPDATE_CHECKED="1"
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}
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if [[ -n "$HOMEBREW_BASH_COMMAND" ]]
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then
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# source rather than executing directly to ensure the entire file is read into
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# memory before it is run. This makes running a Bash script behave more like
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# a Ruby script and avoids hard-to-debug issues if the Bash script is updated
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# at the same time as being run.
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#
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# Hide shellcheck complaint:
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# shellcheck source=/dev/null
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source "$HOMEBREW_BASH_COMMAND"
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{ update-preinstall; "homebrew-$HOMEBREW_COMMAND" "$@"; exit $?; }
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else
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# Hide shellcheck complaint:
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# shellcheck source=/dev/null
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source "$HOMEBREW_LIBRARY/Homebrew/utils/ruby.sh"
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setup-ruby-path
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# Unshift command back into argument list (unless argument list was empty).
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[[ "$HOMEBREW_ARG_COUNT" -gt 0 ]] && set -- "$HOMEBREW_COMMAND" "$@"
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{ update-preinstall; exec "$HOMEBREW_RUBY_PATH" $HOMEBREW_RUBY_WARNINGS "$HOMEBREW_LIBRARY/Homebrew/brew.rb" "$@"; }
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fi
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