oh-my-zsh/plugins/perms/perms.plugin.zsh
Ariel Rivas cb60cfc7bd Avoid unnecesary processing... (#5352)
by discarding directories or files with permissions already correctly set
2016-09-19 19:57:51 -07:00

79 lines
2.5 KiB
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# Some useful commands for setting permissions.
#
# Rory Hardy [GneatGeek]
# Andrew Janke [apjanke]
### Aliases
# Set all files' permissions to 644 recursively in a directory
alias set644='find . -type f ! -perm 644 -print0 | xargs -0 chmod 644'
# Set all directories' permissions to 755 recursively in a directory
alias set755='find . -type d ! -perm 755 -print0 | xargs -0 chmod 755'
### Functions
# fixperms - fix permissions on files and directories, with confirmation
# Returns 0 on success, nonzero if any errors occurred
fixperms () {
local opts confirm target exit_status chmod_opts use_slow_mode
zparseopts -E -D -a opts -help -slow v+=chmod_opts
if [[ $# > 1 || -n "${opts[(r)--help]}" ]]; then
cat <<EOF
Usage: fixperms [-v] [--help] [--slow] [target]
target is the file or directory to change permissions on. If omitted,
the current directory is taken to be the target.
-v enables verbose output (may be supplied multiple times)
--slow will use a slower but more robust mode, which is effective if
directories themselves have permissions that forbid you from
traversing them.
EOF
exit_status=$(( $# > 1 ))
return $exit_status
fi
if [[ $# == 0 ]]; then
target="."
else
target="$1"
fi
if [[ -n ${opts[(r)--slow]} ]]; then use_slow=true; else use_slow=false; fi
# Because this requires confirmation, bail in noninteractive shells
if [[ ! -o interactive ]]; then
echo "fixperms: cannot run in noninteractive shell"
return 1
fi
echo "Fixing perms on $target?"
printf '%s' "Proceed? (y|n) "
read confirm
if [[ "$confirm" != y ]]; then
# User aborted
return 1
fi
# This xargs form is faster than -exec chmod <N> {} \; but will encounter
# issues if the directories themselves have permissions such that you can't
# recurse in to them. If that happens, just rerun this a few times.
exit_status=0;
if [[ $use_slow == true ]]; then
# Process directories first so non-traversable ones are fixed as we go
find "$target" -type d ! -perm 755 -exec chmod $chmod_opts 755 {} \;
if [[ $? != 0 ]]; then exit_status=$?; fi
find "$target" -type f ! -perm 644 -exec chmod $chmod_opts 644 {} \;
if [[ $? != 0 ]]; then exit_status=$?; fi
else
find "$target" -type d ! -perm 755 -print0 | xargs -0 chmod $chmod_opts 755
if [[ $? != 0 ]]; then exit_status=$?; fi
find "$target" -type f ! -perm 644 -print0 | xargs -0 chmod $chmod_opts 644
if [[ $? != 0 ]]; then exit_status=$?; fi
fi
echo "Complete"
return $exit_status
}