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bin/brew: introduce odie function

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This commit is contained in:
Xu Cheng 2016-01-18 11:48:23 +08:00
parent 3fdf1a623b
commit e12e1a5d5d
1 changed files with 22 additions and 14 deletions
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36
bin/brew
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@ -1,10 +1,23 @@
#!/bin/bash #!/bin/bash
odie() {
if [[ -t 2 ]] # check whether stderr is a tty.
then
echo -ne "\033[4;31mError\033[0m: " >&2 # highlight Error with underline and red color
else
echo -n "Error: " >&2
fi
if [[ $# -eq 0 ]]
then
/bin/cat >&2
else
echo "$*" >&2
fi
exit 1
}
chdir() { chdir() {
cd "$@" >/dev/null || { cd "$@" >/dev/null || odie "Error: failed to cd to $*!"
echo "Error: failed to cd to " "$@" "!" >&2
exit 1
}
} }
# Force UTF-8 to avoid encoding issues for users with broken locale settings. # Force UTF-8 to avoid encoding issues for users with broken locale settings.
@ -46,8 +59,7 @@ esac
if [[ "$HOMEBREW_PREFIX" = "/" || "$HOMEBREW_PREFIX" = "/usr" ]] if [[ "$HOMEBREW_PREFIX" = "/" || "$HOMEBREW_PREFIX" = "/usr" ]]
then then
# it may work, but I only see pain this route and don't want to support it # it may work, but I only see pain this route and don't want to support it
echo "Cowardly refusing to continue at this prefix: $HOMEBREW_PREFIX" >&2 odie "Cowardly refusing to continue at this prefix: $HOMEBREW_PREFIX"
exit 1
fi fi
# Users may have these set, pointing the system Ruby # Users may have these set, pointing the system Ruby
@ -86,7 +98,7 @@ if [[ -n "$HOMEBREW_OSX" ]]
then then
if [[ "$('xcode-select' --print-path)" = "/" ]] if [[ "$('xcode-select' --print-path)" = "/" ]]
then then
cat >&2 <<EOS odie <<EOS
Your xcode-select path is currently set to '/'. Your xcode-select path is currently set to '/'.
This causes the 'xcrun' tool to hang, and can render Homebrew unusable. This causes the 'xcrun' tool to hang, and can render Homebrew unusable.
If you are using Xcode, you should: If you are using Xcode, you should:
@ -94,7 +106,6 @@ If you are using Xcode, you should:
Otherwise, you should: Otherwise, you should:
sudo rm -rf /usr/share/xcode-select sudo rm -rf /usr/share/xcode-select
EOS EOS
exit 1
fi fi
XCRUN_OUTPUT="$(/usr/bin/xcrun clang 2>&1)" XCRUN_OUTPUT="$(/usr/bin/xcrun clang 2>&1)"
@ -102,11 +113,10 @@ EOS
if [[ "$XCRUN_STATUS" -ne 0 && "$XCRUN_OUTPUT" = *license* ]] if [[ "$XCRUN_STATUS" -ne 0 && "$XCRUN_OUTPUT" = *license* ]]
then then
cat >&2 <<EOS odie <<EOS
You have not agreed to the Xcode license. Please resolve this by running: You have not agreed to the Xcode license. Please resolve this by running:
sudo xcodebuild -license sudo xcodebuild -license
EOS EOS
exit 1
fi fi
fi fi
@ -114,8 +124,7 @@ fi
# odd exceptions. Reduce our support burden by showing a user-friendly error. # odd exceptions. Reduce our support burden by showing a user-friendly error.
if ! [[ -d "$(pwd)" ]] if ! [[ -d "$(pwd)" ]]
then then
echo "The current working directory doesn't exist, cannot proceed." >&2 odie "The current working directory doesn't exist, cannot proceed."
exit 1
fi fi
if [[ "$1" = -v ]] if [[ "$1" = -v ]]
@ -132,13 +141,12 @@ if [[ "$(id -u)" = "0" && "$(stat -f%u "$HOMEBREW_BREW_FILE")" != "0" ]]
then then
case "$HOMEBREW_COMMAND" in case "$HOMEBREW_COMMAND" in
install|reinstall|postinstall|link|pin|unpin|update|update-bash|upgrade|create|migrate|tap|switch) install|reinstall|postinstall|link|pin|unpin|update|update-bash|upgrade|create|migrate|tap|switch)
cat >&2 <<EOS odie <<EOS
Cowardly refusing to 'sudo brew $HOMEBREW_COMMAND' Cowardly refusing to 'sudo brew $HOMEBREW_COMMAND'
You can use brew with sudo, but only if the brew executable is owned by root. You can use brew with sudo, but only if the brew executable is owned by root.
However, this is both not recommended and completely unsupported so do so at However, this is both not recommended and completely unsupported so do so at
your own risk. your own risk.
EOS EOS
exit 1
;; ;;
esac esac
fi fi