b21f699ff2
This is also used by `brew <cmd> --help`. The basic idea is to have the documentation as a top level comment in each command file. To find these comments, they have to be like this `#:`. This is also used by the `brew man` command to keep the documentation DRY, and for that there are now a header and footer for the man page.
249 lines
7.7 KiB
Bash
249 lines
7.7 KiB
Bash
HOMEBREW_VERSION="0.9.9"
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odie() {
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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 [[ $# -eq 0 ]]
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then
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/bin/cat >&2
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else
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echo "$*" >&2
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fi
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exit 1
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}
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chdir() {
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cd "$@" >/dev/null || odie "Error: failed to cd to $*!"
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}
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# Force UTF-8 to avoid encoding issues for users with broken locale settings.
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if [[ "$(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; /usr/local/Cellar if it exists,
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# otherwise a Cellar relative to the Repository.
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if [[ -d "$HOMEBREW_PREFIX/Cellar" ]]
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then
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HOMEBREW_CELLAR="$HOMEBREW_PREFIX/Cellar"
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else
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HOMEBREW_CELLAR="$HOMEBREW_REPOSITORY/Cellar"
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fi
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case "$*" 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 "$HOMEBREW_REPOSITORY"; exit 0 ;;
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esac
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if [[ "$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: $HOMEBREW_PREFIX"
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fi
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# Users may have these set, pointing the system Ruby
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# at non-system gem paths
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unset GEM_HOME
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unset GEM_PATH
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if [[ -z "$HOMEBREW_DEVELOPER" ]]
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then
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unset HOMEBREW_RUBY_PATH
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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_OSX="1";;
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Linux) HOMEBREW_LINUX="1";;
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esac
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if [[ -z "$HOMEBREW_RUBY_PATH" ]]
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then
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if [[ -n "$HOMEBREW_OSX" ]]
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then
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HOMEBREW_RUBY_PATH="/System/Library/Frameworks/Ruby.framework/Versions/Current/usr/bin/ruby"
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else
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HOMEBREW_RUBY_PATH="$(which ruby)"
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fi
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fi
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HOMEBREW_CURL="/usr/bin/curl"
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if [[ -n "$HOMEBREW_OSX" ]]
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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_OSX_VERSION="$(/usr/bin/sw_vers -productVersion)"
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HOMEBREW_OS_VERSION="Mac OS X $HOMEBREW_OSX_VERSION"
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printf -v HOMEBREW_OSX_VERSION_NUMERIC "%02d%02d%02d" ${HOMEBREW_OSX_VERSION//./ }
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if [[ "$HOMEBREW_OSX_VERSION_NUMERIC" -lt "100900" &&
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-x "$HOMEBREW_PREFIX/opt/curl/bin/curl" ]]
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then
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HOMEBREW_CURL="$HOMEBREW_PREFIX/opt/curl/bin/curl"
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fi
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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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fi
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HOMEBREW_USER_AGENT="$HOMEBREW_PRODUCT/$HOMEBREW_VERSION ($HOMEBREW_SYSTEM; $HOMEBREW_PROCESSOR $HOMEBREW_OS_VERSION)"
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HOMEBREW_CURL_VERSION="$("$HOMEBREW_CURL" --version 2>/dev/null | head -n1 | /usr/bin/awk '{print $1"/"$2}')"
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HOMEBREW_USER_AGENT_CURL="$HOMEBREW_USER_AGENT $HOMEBREW_CURL_VERSION"
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# Declared in bin/brew
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export HOMEBREW_BREW_FILE
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export HOMEBREW_PREFIX
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export HOMEBREW_REPOSITORY
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export HOMEBREW_LIBRARY
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# Declared in brew.sh
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export HOMEBREW_VERSION
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export HOMEBREW_CELLAR
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export HOMEBREW_RUBY_PATH
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export HOMEBREW_CURL
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export HOMEBREW_OS_VERSION
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export HOMEBREW_OSX_VERSION
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export HOMEBREW_USER_AGENT
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export HOMEBREW_USER_AGENT_CURL
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if [[ -n "$HOMEBREW_OSX" ]]
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then
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if [[ "$('/usr/bin/xcode-select' --print-path)" = "/" ]]
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then
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odie <<EOS
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Your xcode-select path is currently set to '/'.
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This causes the 'xcrun' tool to hang, and can render Homebrew unusable.
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If you are using Xcode, you should:
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sudo xcode-select -switch /Applications/Xcode.app
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Otherwise, you should:
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sudo rm -rf /usr/share/xcode-select
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EOS
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fi
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XCRUN_OUTPUT="$(/usr/bin/xcrun clang 2>&1)"
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XCRUN_STATUS="$?"
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if [[ "$XCRUN_STATUS" -ne 0 && "$XCRUN_OUTPUT" = *license* ]]
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then
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odie <<EOS
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You have not agreed to the Xcode license. Please resolve this by running:
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sudo xcodebuild -license
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EOS
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fi
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fi
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# Many Pathname operations use getwd when they shouldn't, and then throw
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# odd exceptions. Reduce our support burden by showing a user-friendly error.
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if [[ ! -d "$(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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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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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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esac
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if [[ -f "$HOMEBREW_LIBRARY/Homebrew/cmd/$HOMEBREW_COMMAND.sh" ]]; then
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HOMEBREW_BASH_COMMAND="$HOMEBREW_LIBRARY/Homebrew/cmd/$HOMEBREW_COMMAND.sh"
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elif [[ -n "$HOMEBREW_DEVELOPER" && -f "$HOMEBREW_LIBRARY/Homebrew/dev-cmd/$HOMEBREW_COMMAND.sh" ]]; then
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HOMEBREW_BASH_COMMAND="$HOMEBREW_LIBRARY/Homebrew/dev-cmd/$HOMEBREW_COMMAND.sh"
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fi
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if [[ "$(id -u)" = "0" && "$(/usr/bin/stat -f%u "$HOMEBREW_BREW_FILE")" != "0" ]]
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then
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case "$HOMEBREW_COMMAND" in
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install|reinstall|postinstall|link|pin|update|upgrade|create|migrate|tap|tap-pin|switch)
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odie <<EOS
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Cowardly refusing to 'sudo brew $HOMEBREW_COMMAND'
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You can use brew with sudo, but only if the brew executable is owned by root.
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However, this is both not recommended and completely unsupported so do so at
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your own risk.
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EOS
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;;
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esac
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fi
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if [[ -n "$HOMEBREW_ANALYTICS" ]]
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then
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# User UUID file. Used for Homebrew user counting. Can be deleted and
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# recreated with no adverse effect (beyond our user counts being inflated).
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HOMEBREW_ANALYTICS_USER_UUID_FILE="$HOME/.homebrew_analytics_user_uuid"
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if [[ -r "$HOMEBREW_ANALYTICS_USER_UUID_FILE" ]]
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then
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HOMEBREW_ANALYTICS_USER_UUID="$(<"$HOMEBREW_ANALYTICS_USER_UUID_FILE")"
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else
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HOMEBREW_ANALYTICS_USER_UUID="$(uuidgen)"
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echo "$HOMEBREW_ANALYTICS_USER_UUID" > "$HOMEBREW_ANALYTICS_USER_UUID_FILE"
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fi
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export HOMEBREW_ANALYTICS_ID="UA-75654628-1"
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export HOMEBREW_ANALYTICS_USER_UUID
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# Send the to-be-executed command as an "App Screen View". Anonymise the IP
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# address (aip=1) and don't send or store any personally identifiable
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# information.
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# https://developers.google.com/analytics/devguides/collection/protocol/v1/devguide#screenView
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# https://developers.google.com/analytics/devguides/collection/protocol/v1/parameters
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"$HOMEBREW_CURL" https://www.google-analytics.com/collect -d v=1 \
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--silent --max-time 3 --output /dev/null \
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--user-agent "$HOMEBREW_USER_AGENT_CURL" \
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-d tid="$HOMEBREW_ANALYTICS_ID" \
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-d cid="$HOMEBREW_ANALYTICS_USER_UUID" \
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-d aip=1 \
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-d an=Homebrew \
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-d av="$HOMEBREW_VERSION" \
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-d t=screenview \
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-d cd="$HOMEBREW_COMMAND" \
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&> /dev/null \
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& disown
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fi
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if [[ -n "$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 "$HOMEBREW_BASH_COMMAND"
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{ "homebrew-$HOMEBREW_COMMAND" "$@"; exit $?; }
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else
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# Unshift command back into argument list (unless argument list was empty).
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[[ "$HOMEBREW_ARG_COUNT" -gt 0 ]] && set -- "$HOMEBREW_COMMAND" "$@"
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exec "$HOMEBREW_RUBY_PATH" -W0 "$HOMEBREW_LIBRARY/brew.rb" "$@"
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fi
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