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cmd/shellenv: improve for newer macOS using /usr/libexec/path_helper

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On macOS 14 and newer, `/usr/libexec/path_helper` supports setting a
`PATH_HELPER_ROOT` environment variable.

With this set, `path_helper` checks `$PATH_HELPER_ROOT/etc/paths` and
`$PATH_HELPER_ROOT/etc/paths.d` in the same way it checks `/etc/paths`
and `/etc/paths.d`.

We can use this to simplify management of the user's `PATH` variable
when they do `brew shellenv`. In particular, if their system supports
it, we delegate setting the `PATH` environment variable to `path_helper`
instead of our own code. We also write a default `etc/paths` file if one
is not already present.

This is nicer because it simplifies management of the user's `PATH`
variable. For example, if a user wants a keg-only formula to be in their
`PATH`, they can simply add the necessary path to `/etc/paths` or
`/etc/paths.d` without having to do something like `brew link --force`
or adding to `PATH` themselves.

When `/usr/libexec/path_helper` is not available, we just fall back to
the existing code.
This commit is contained in:
Carlo Cabrera 2024-08-29 16:19:16 +08:00
parent 06fc2247c7
commit 6dc90cbf83
No known key found for this signature in database
GPG Key ID: C74D447FC549A1D0
2 changed files with 34 additions and 6 deletions
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11
Library/Homebrew/brew.sh
View File

@ -54,6 +54,13 @@ then
HOMEBREW_DEFAULT_CACHE="${HOME}/Library/Caches/Homebrew" HOMEBREW_DEFAULT_CACHE="${HOME}/Library/Caches/Homebrew"
HOMEBREW_DEFAULT_LOGS="${HOME}/Library/Logs/Homebrew" HOMEBREW_DEFAULT_LOGS="${HOME}/Library/Logs/Homebrew"
HOMEBREW_DEFAULT_TEMP="/private/tmp" HOMEBREW_DEFAULT_TEMP="/private/tmp"
HOMEBREW_MACOS_VERSION="$(/usr/bin/sw_vers -productVersion)"
IFS=. read -r -a MACOS_VERSION_ARRAY <<<"${HOMEBREW_MACOS_VERSION}"
printf -v HOMEBREW_MACOS_VERSION_NUMERIC "%02d%02d%02d" "${MACOS_VERSION_ARRAY[@]}"
unset MACOS_VERSION_ARRAY
else else
CACHE_HOME="${HOMEBREW_XDG_CACHE_HOME:-${HOME}/.cache}" CACHE_HOME="${HOMEBREW_XDG_CACHE_HOME:-${HOME}/.cache}"
HOMEBREW_DEFAULT_CACHE="${CACHE_HOME}/Homebrew" HOMEBREW_DEFAULT_CACHE="${CACHE_HOME}/Homebrew"
@ -534,7 +541,6 @@ then
HOMEBREW_PRODUCT="Homebrew" HOMEBREW_PRODUCT="Homebrew"
HOMEBREW_SYSTEM="Macintosh" HOMEBREW_SYSTEM="Macintosh"
[[ "${HOMEBREW_PROCESSOR}" == "x86_64" ]] && HOMEBREW_PROCESSOR="Intel" [[ "${HOMEBREW_PROCESSOR}" == "x86_64" ]] && HOMEBREW_PROCESSOR="Intel"
HOMEBREW_MACOS_VERSION="$(/usr/bin/sw_vers -productVersion)"
# Don't change this from Mac OS X to match what macOS itself does in Safari on 10.12 # Don't change this from Mac OS X to match what macOS itself does in Safari on 10.12
HOMEBREW_OS_USER_AGENT_VERSION="Mac OS X ${HOMEBREW_MACOS_VERSION}" HOMEBREW_OS_USER_AGENT_VERSION="Mac OS X ${HOMEBREW_MACOS_VERSION}"
@ -545,9 +551,6 @@ then
HOMEBREW_PHYSICAL_PROCESSOR="arm64" HOMEBREW_PHYSICAL_PROCESSOR="arm64"
fi fi
IFS=. read -r -a MACOS_VERSION_ARRAY <<<"${HOMEBREW_MACOS_VERSION}"
printf -v HOMEBREW_MACOS_VERSION_NUMERIC "%02d%02d%02d" "${MACOS_VERSION_ARRAY[@]}"
IFS=. read -r -a MACOS_VERSION_ARRAY <<<"${HOMEBREW_MACOS_OLDEST_ALLOWED}" IFS=. read -r -a MACOS_VERSION_ARRAY <<<"${HOMEBREW_MACOS_OLDEST_ALLOWED}"
printf -v HOMEBREW_MACOS_OLDEST_ALLOWED_NUMERIC "%02d%02d%02d" "${MACOS_VERSION_ARRAY[@]}" printf -v HOMEBREW_MACOS_OLDEST_ALLOWED_NUMERIC "%02d%02d%02d" "${MACOS_VERSION_ARRAY[@]}"

25
Library/Homebrew/cmd/shellenv.sh
View File

@ -18,6 +18,21 @@ homebrew-shellenv() {
HOMEBREW_SHELL_NAME="$(/bin/ps -p "${PPID}" -c -o comm=)" HOMEBREW_SHELL_NAME="$(/bin/ps -p "${PPID}" -c -o comm=)"
fi fi
if [[ -n "${HOMEBREW_MACOS}" ]] &&
[[ "${HOMEBREW_MACOS_VERSION_NUMERIC}" -ge "140000" ]] &&
[[ -x /usr/libexec/path_helper ]]
then
if [[ ! -f "${HOMEBREW_PREFIX}/etc/paths" ]]
then
printf '%s/bin\n%s/sbin\n' "${HOMEBREW_PREFIX}" "${HOMEBREW_PREFIX}" >"${HOMEBREW_PREFIX}/etc/paths"
fi
if [[ -r "${HOMEBREW_PREFIX}/etc/paths" ]]
then
PATH_HELPER_ROOT="${HOMEBREW_PREFIX}"
fi
fi
case "${HOMEBREW_SHELL_NAME}" in case "${HOMEBREW_SHELL_NAME}" in
fish | -fish) fish | -fish)
echo "set -gx HOMEBREW_PREFIX \"${HOMEBREW_PREFIX}\";" echo "set -gx HOMEBREW_PREFIX \"${HOMEBREW_PREFIX}\";"
@ -31,7 +46,12 @@ homebrew-shellenv() {
echo "setenv HOMEBREW_PREFIX ${HOMEBREW_PREFIX};" echo "setenv HOMEBREW_PREFIX ${HOMEBREW_PREFIX};"
echo "setenv HOMEBREW_CELLAR ${HOMEBREW_CELLAR};" echo "setenv HOMEBREW_CELLAR ${HOMEBREW_CELLAR};"
echo "setenv HOMEBREW_REPOSITORY ${HOMEBREW_REPOSITORY};" echo "setenv HOMEBREW_REPOSITORY ${HOMEBREW_REPOSITORY};"
if [[ -n "${PATH_HELPER_ROOT}" ]]
then
echo "eval \`/usr/bin/env PATH_HELPER_ROOT=\"${PATH_HELPER_ROOT}\" /usr/libexec/path_helper -c\`;"
else
echo "setenv PATH ${HOMEBREW_PREFIX}/bin:${HOMEBREW_PREFIX}/sbin:\$PATH;" echo "setenv PATH ${HOMEBREW_PREFIX}/bin:${HOMEBREW_PREFIX}/sbin:\$PATH;"
fi
echo "test \${?MANPATH} -eq 1 && setenv MANPATH :\${MANPATH};" echo "test \${?MANPATH} -eq 1 && setenv MANPATH :\${MANPATH};"
echo "setenv INFOPATH ${HOMEBREW_PREFIX}/share/info\`test \${?INFOPATH} -eq 1 && echo :\${INFOPATH}\`;" echo "setenv INFOPATH ${HOMEBREW_PREFIX}/share/info\`test \${?INFOPATH} -eq 1 && echo :\${INFOPATH}\`;"
;; ;;
@ -47,7 +67,12 @@ homebrew-shellenv() {
echo "export HOMEBREW_PREFIX=\"${HOMEBREW_PREFIX}\";" echo "export HOMEBREW_PREFIX=\"${HOMEBREW_PREFIX}\";"
echo "export HOMEBREW_CELLAR=\"${HOMEBREW_CELLAR}\";" echo "export HOMEBREW_CELLAR=\"${HOMEBREW_CELLAR}\";"
echo "export HOMEBREW_REPOSITORY=\"${HOMEBREW_REPOSITORY}\";" echo "export HOMEBREW_REPOSITORY=\"${HOMEBREW_REPOSITORY}\";"
if [[ -n "${PATH_HELPER_ROOT}" ]]
then
echo "eval \"\$(PATH_HELPER_ROOT=\"${PATH_HELPER_ROOT}\" /usr/libexec/path_helper -s)\""
else
echo "export PATH=\"${HOMEBREW_PREFIX}/bin:${HOMEBREW_PREFIX}/sbin\${PATH+:\$PATH}\";" echo "export PATH=\"${HOMEBREW_PREFIX}/bin:${HOMEBREW_PREFIX}/sbin\${PATH+:\$PATH}\";"
fi
echo "[ -z \"\${MANPATH-}\" ] || export MANPATH=\":\${MANPATH#:}\";" echo "[ -z \"\${MANPATH-}\" ] || export MANPATH=\":\${MANPATH#:}\";"
echo "export INFOPATH=\"${HOMEBREW_PREFIX}/share/info:\${INFOPATH:-}\";" echo "export INFOPATH=\"${HOMEBREW_PREFIX}/share/info:\${INFOPATH:-}\";"
;; ;;