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+# 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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+
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+### Aliases
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+
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+# Set all files' permissions to 644 recursively in a directory
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+alias set644='find . -type f -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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+alias set755='find . -type d -print0 | xargs -0 chmod 755'
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+
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+### Functions
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+
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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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+
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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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+
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+ -v enables verbose output (may be supplied multiple times)
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+
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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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+
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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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+
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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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+
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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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+
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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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+
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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 -exec chmod $chmod_opts 755 {} \;
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+ if [[ $? != 0 ]]; then exit_status=$?; fi
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+ find "$target" -type f -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 -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 -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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