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Update with comments in the code

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This commit is contained in:
Doug Hazell 2017-01-09 12:31:28 +00:00
parent 10b8d27d11
commit eca3f117ba
2 changed files with 94 additions and 1 deletions
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15
Library/Homebrew/utils/shell_env.sh Executable file
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@ -0,0 +1,15 @@
#!/bin/bash
set +o posix
IFS="="
while read -r key value
do
export "$key=$value"
done < /tmp/homebrew-env
# Need to reset IFS to default value for later shell functions like 'printf -v HOMEBREW_MACOS_VERSION_NUMERIC ...' to work
unset IFS
# HOMEBREW_LIBRARY will have been readded above having been added originally in 'bin/brew'
source "$HOMEBREW_LIBRARY/Homebrew/brew.sh"

78
bin/brew
View File

@ -44,4 +44,82 @@ fi
HOMEBREW_LIBRARY="$HOMEBREW_REPOSITORY/Library"
# Refactor of code from '/Library/Homebrew/brew.sh'
export HOMEBREW_BREW_FILE
export HOMEBREW_PREFIX
export HOMEBREW_REPOSITORY
export HOMEBREW_LIBRARY
# Set to system default value to avoid any possible later mis-direction based on the user's shell env
export PATH=/usr/bin:/bin:/usr/sbin:/sbin
# -------------------------------------------------------------------------------------------------------------------------
# Setting 'HOMEBREW_OLD_ENV' would be removed with 'env -i' so would need to be passed as another arg to the 'env -i' cmd.
# The resulting '/tmp/homebrew-env' for an update prior to install was
# (which may run into bash arg limits, so I suggest keeping the tmp file):
#HOMEBREW_PROCESSOR=Intel
#HOMEBREW_DEV_CMD_RUN=1
#HOMEBREW_USER_AGENT=Homebrew/1.X.Y (Macintosh; Intel macOS 10.6.8)
#HOMEBREW_UPDATE_BEFORE=f7bccee2145547d21b2629cab8b5fddff3299bda
#HOMEBREW_LIBRARY=/usr/local/Homebrew/Library
#HOMEBREW_COMMAND_DEPTH=2
#TERM=xterm-color
#HOMEBREW_OS_VERSION=macOS 10.6.8
#HOMEBREW_UPDATE_AFTER_HOMEBREW_HOMEBREW_BUNDLE=a32e4559ef653c648426a4d52abdb570db09fccf
#HOMEBREW_REPOSITORY=/usr/local/Homebrew
#HOMEBREW_ENABLE_AUTO_UPDATE_MIGRATION=1
#HOMEBREW_UPDATE_AFTER_HOMEBREW_HOMEBREW_CORE=350aa1a6b9f5d31dabb9d2cfeeffb960a64509e6
#HOMEBREW_GIT_CONFIG_FILE=/usr/local/Homebrew/.git/config
#HOMEBREW_RUBY_PATH=/usr/local/Homebrew/Library/Homebrew/vendor/portable-ruby/current/bin/ruby
#HOMEBREW_NO_AUTO_UPDATE=1
#HOMEBREW_UPDATE_BEFORE_HOMEBREW_HOMEBREW_CORE=9bc16f465e1d7697426dd6dad685d161f1f4ee1d
#HOMEBREW_ANALYTICS_USER_UUID=B2E8D13A-443F-4686-B946-DE6C797064D7
#HOMEBREW_CACHE=/Users/doug/Library/Caches/Homebrew
#HOMEBREW_USER_AGENT_CURL=Homebrew/1.X.Y (Macintosh; Intel macOS 10.6.8) curl/7.52.1
#PATH=/usr/bin:/bin:/usr/sbin:/sbin
#HOMEBREW_UPDATE_BEFORE_HOMEBREW_HOMEBREW_VERSIONS=c94a1b18d5c2c198b4be302b604dd0c845a4344b
#HOMEBREW_UPDATE_BEFORE_CASKROOM_HOMEBREW_CASK=258fd55c9c3d4fc3699753f363927c51a6fe9c18
#HOMEBREW_UPDATE_BEFORE_HOMEBREW_HOMEBREW_BUNDLE=a32e4559ef653c648426a4d52abdb570db09fccf
#HOMEBREW_BREW_FILE=/usr/local/bin/brew
#HOMEBREW_MACOS_VERSION=10.6.8
#HOMEBREW_ANALYTICS_ID=UA-76679469-1
#HOMEBREW_UPDATE_AFTER_HOMEBREW_HOMEBREW_VERSIONS=c94a1b18d5c2c198b4be302b604dd0c845a4344b
#HOMEBREW_UPDATE_AFTER_CASKROOM_HOMEBREW_CASK=258fd55c9c3d4fc3699753f363927c51a6fe9c18
#HOMEBREW_PRODUCT=Homebrew
#HOMEBREW_UPDATE_AFTER_HOMEBREW_HOMEBREW_DUPES=25fa9b53f943de00fc83c5a85fa0d29180eb1030
#HOME=/Users/doug
#HOMEBREW_UPDATE_BEFORE_HOMEBREW_HOMEBREW_DUPES=25fa9b53f943de00fc83c5a85fa0d29180eb1030
#HOMEBREW_PREFIX=/usr/local
#HOMEBREW_VERSION=>1.1.0 (no git repository)
#HOMEBREW_CELLAR=/usr/local/Cellar
#HOMEBREW_CURL=/usr/local/opt/curl/bin/curl
#HOMEBREW_UPDATE_PREINSTALL=1
#HOMEBREW_NO_UPDATE_CLEANUP=1
#HOMEBREW_UPDATE_AFTER=f7bccee2145547d21b2629cab8b5fddff3299bda
#HOMEBREW_SYSTEM=Macintosh
# from an original of:
#HOMEBREW_LIBRARY=/usr/local/Homebrew/Library
#TERM=xterm-color
#HOMEBREW_REPOSITORY=/usr/local/Homebrew
#PATH=/usr/bin:/bin:/usr/sbin:/sbin
#HOMEBREW_BREW_FILE=/usr/local/bin/brew
#HOME=/Users/doug
#HOMEBREW_PREFIX=/usr/local
# -------------------------------------------------------------------------------------------------------------------------
if [[ -n "$HOMEBREW_ENV_FILTERING" ]]
then
echo "----- HOMEBREW_ENV_FILTERING set -----"
# Needed TERM to prevent "tput: No value for $TERM and no -T specified"
env | grep -E '^(HOMEBREW.*|HOME|PATH|TERM)=.*$' > /tmp/homebrew-env
env -i "$HOMEBREW_LIBRARY/Homebrew/utils/shell_env.sh" "$@"
else
echo "----- HOMEBREW_ENV_FILTERING NOT set! -----"
source "$HOMEBREW_LIBRARY/Homebrew/brew.sh"
fi