#!/bin/bash
+## Originally...
# Copyright (c) 2004 Matthias S. Benkmann <article AT winterdrache DOT de>
# You may do everything with this code except misrepresent its origin.
# PROVIDED `AS IS' WITH ABSOLUTELY NO WARRANTY OF ANY KIND!
-#The following list should contain the mount points of all filesystems
-#that are to be scanned as a space-separated list within parentheses.
-#/ will usually be in this list and if you have /usr
-#on a separate partition, it will also be in this list. Other non-special
-#filesystems where package users could own files should also be put in this
-#list.
-#Mount points whose filesystems are special, such as procfs or sysfs must
-#not be in this list. While a simple find on those special filesystems should
-#be harmless, operations such as "-exec grep something" are NOT SAFE and may
-#have HARMFUL SIDE-EFFECTS, especially when performed as root.
+# Copyright (C) 2014 Steve Youngs <steve@steveyoungs.com>
+## Loads of minor tweaks --SY.
+
+# The following list should contain the mount points of all
+# filesystems that are to be scanned as a space-separated list within
+# parentheses. / will usually be in this list and if you have /usr on
+# a separate partition, it will also be in this list. Other
+# non-special filesystems where package users could own files should
+# also be put in this list. Mount points whose filesystems are
+# special, such as procfs or sysfs must not be in this list. While a
+# simple find on those special filesystems should be harmless,
+# operations such as "-exec grep something" are NOT SAFE and may have
+# HARMFUL SIDE-EFFECTS, especially when performed as root.
## Bastard settings
-# fs_to_scan=(/ /opt /usr /usr/local /var)
+# fs_to_scan=(/ /opt /usr /var)
fs_to_scan=(/)
-#Files with a path prefix found in the following list are ignored.
-#This list will usually contain the parent directory of your package users'
-#home directories, because normally you don't want to scan those. You can
-#also add other directories that will never contain package user files, such
-#as /home. This reduces scan time.
-#NOTE: The LFS-6.0 book uses a ramfs mounted on /dev and with that setup
-#/dev does not need to be in the prune list. But since there is no requirement
-#that /dev have its on filesystem it's better to prune it explicitly.
+# Files with a path prefix found in the following list are ignored. This
+# list will usually contain the parent directory of your package users'
+# home directories, because normally you don't want to scan those. You
+# can also add other directories that will never contain package user
+# files, such as /home. This reduces scan time.
+
+# Directories that are on separate filesystems (separate from the ones
+# listed in fs_to_scan above) don't need to be listed here because of
+# the -xdev option used in the find command.
## Bastard settings
# prune_prefixes=(\
-# /tools \
-# /usr/local/LFS/tools \
-# /home \
-# /usr/src \
-# /dev \
-# /mnt \
-# /tmp \
-# /sys \
-# /etc/apache/ssl.key \
-# /etc/cups/ssl \
-# /etc/firewall \
-# /etc/skel \
-# /etc/ssl/private \
-# /lost+found \
-# /**/lost+found \
-# /root \
-# /usr/local/lost+found \
-# /**/.{mc,ssh,mozilla,spamassassin} \
-# /usr/local/media/pr0n \
-# /usr/local/LFS \
-# /usr/share/mailman \
-# /var/{cache,chroot,run,snmp,spool} \
-# /var/lib/{sshd,nfs,spamassassin,pulse} \
-# /var/www/htdocs/SXEmacs-issues{,.old} \
-# /var/lost+found) #NO TRAILING SLASHES!!!!
-
-prune_prefixes=(/home /usr/src /dev /tools) #NO TRAILING SLASHES!!!!
+# /{,*/{,*/}}lost+found \
+# /root \
+# /opt/pgsql/data \
+# /opt/sql-ledger/{spool,templates,users,css} \
+# /etc/apache/ssl.key \
+# /etc/audisp/plugins.d \
+# /etc/cups/ssl \
+# /etc/firewall \
+# /etc/polkit-1/rules.d \
+# /etc/skel \
+# /etc/ssl/private \
+# /etc/sudoers.d \
+# /var/lib/{sasl,sudo,net-snmp,udisks{,2},NetworkManager} \
+# /var/log \
+# /usr/lib/pkgusr \
+# /usr/share/polkit-1/rules.d \
+# /var/tmp \
+# /var/{cache,chroot,db,run,snmp,spool} \
+# /var/lib/{sshd,nfs,spamassassin,pulse}) #NO TRAILING SLASHES!!!!
+
+prune_prefixes=(\
+ /home \
+ /root \
+ /usr/lib/pkgusr \
+ /usr/src) #NO TRAILING SLASHES!!!!
+
+## NOTE:
+# If you are scanning MS-DOS, CD-ROM, or AFS volumes you need
+# to set $NOLEAF here to '-noleaf'. Setting this does significantly
+# slow down the search so only do so if you really need to.
+
+# NOLEAF='-noleaf'
+NOLEAF=
if [ $# -lt 1 -o "$1" = "--help" ]; then
echo 1>&2
exit 1
fi
-#suppress ugly debug output from shell
+# suppress ugly debug output from shell
trap ':' SIGPIPE
ugname="$1"
-shift 1 #remove user_or_group_name from argument list
+shift 1 # remove user_or_group_name from argument list
ugmatcher=(-false)
-#test if find accepts ugname as a user, and append to ugmatcher if it does
+# test if find accepts ugname as a user, and append to ugmatcher if it does
if find / -maxdepth 0 -user "$ugname" >/dev/null 2>&1 ; then
ugmatcher[${#ugmatcher[@]}]="-or"
ugmatcher[${#ugmatcher[@]}]="-user"
ugmatcher[${#ugmatcher[@]}]="$ugname"
fi
-#test if find accepts ugname as a group, and append to ugmatcher if it does
+# test if find accepts ugname as a group, and append to ugmatcher if it does
if find / -maxdepth 0 -group "$ugname" >/dev/null 2>&1 ; then
ugmatcher[${#ugmatcher[@]}]="-or"
ugmatcher[${#ugmatcher[@]}]="-group"
ugmatcher[${#ugmatcher[@]}]="$ugname"
fi
-#if find accepted ugname as neither user nor group, then exit
+# if find accepted ugname as neither user nor group, then exit
if [ "${#ugmatcher[@]}" = 1 ]; then
echo 1>&2 'find does not accept `'"$ugname'"' as group or user name'
exit 1
fi
-#construct find commands that match the prune_prefixes. Each prefix will be
-#matched as -path <prefix> -or -path <prefix>/*
-#so that the directory itself and all subdirectories are matched.
+# construct find commands that match the prune_prefixes. Each prefix will be
+#
matched as -path <prefix> -or -path <prefix>/*
+# so that the directory itself and all subdirectories are matched.
y=(\( -false)
for ((i=0; $i<${#prune_prefixes[@]}; i=$i+1))
do
done
y[${#y[@]}]=')'
-#In the following find command, the part
+# The uninstall_package script sets this to `-ignore_readdir_race' so
+# that find doesn't print errors when things it is searching for
+# disappear.
+# IGNORE_READDIR_RACE='-ignore_readdir_race'
+IGNORE_READDIR_RACE=
+
+# In the following find command, the part
# -not ( ( "${y[@]}" -prune ) -or "${y[@]}" )
-#is responsible for preventing the files that match prune_prefixes from
-#being processed. The 2nd "${y[@]}" may seem redundant, but it isn't, because
-#-prune has no effect and is always false when -depth is used.
-#The -true before "$@" ensures that -depth can be passed as only parameter.
-find "${fs_to_scan[@]}" -xdev -noleaf \
+# is responsible for preventing the files that match prune_prefixes from
+# being processed. The 2nd "${y[@]}" may seem redundant, but it isn't, because
+# -prune has no effect and is always false when -depth is used.
+# The -true before "$@" ensures that -depth can be passed as only parameter.
+
+find "${fs_to_scan[@]}" -xdev $NOLEAF $IGNORE_READDIR_RACE \
-not \( \( "${y[@]}" -prune \) -or "${y[@]}" \) \
-and \( "${ugmatcher[@]}" \) -and \( -true "$@" \)
projects / pkgusr / blobdiff