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