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brew: Make HOMEBREW_REPOSITORY different from prefix only when 'brew' is a symlink

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Closes Homebrew/homebrew#49261.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
This commit is contained in:
David Caldwell 2016-02-13 11:31:00 -08:00 committed by Mike McQuaid
parent 94034a6915
commit bff90a7233
1 changed files with 4 additions and 2 deletions
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6
bin/brew
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@ -6,16 +6,18 @@ chdir() {
BREW_FILE_DIRECTORY="$(chdir "${0%/*}" && pwd -P)"
HOMEBREW_BREW_FILE="$BREW_FILE_DIRECTORY/${0##*/}"
HOMEBREW_PREFIX="${HOMEBREW_BREW_FILE%/*/*}"
HOMEBREW_REPOSITORY="$HOMEBREW_PREFIX"
if [[ -L "$HOMEBREW_BREW_FILE" ]]
then
BREW_SYMLINK="$(readlink "$HOMEBREW_BREW_FILE")"
BREW_SYMLINK_DIRECTORY="$(dirname "$BREW_SYMLINK")"
BREW_FILE_DIRECTORY="$(chdir "$BREW_FILE_DIRECTORY" &&
chdir "$BREW_SYMLINK_DIRECTORY" && pwd -P)"
HOMEBREW_REPOSITORY="${BREW_FILE_DIRECTORY%/*}"
fi
HOMEBREW_PREFIX="${HOMEBREW_BREW_FILE%/*/*}"
HOMEBREW_REPOSITORY="${BREW_FILE_DIRECTORY%/*}"
HOMEBREW_LIBRARY="$HOMEBREW_REPOSITORY/Library"
source "$HOMEBREW_LIBRARY/brew.sh"