useradd_base.bbclass: replace retry logic with flock
When perform useradd during populate sysroot, it locks files passwd.lock and group.lock at same time. And then it meets a dead lock issue randomly. Use flock to reslove it by using an universal lock directory for all the user and group related operations. [YOCTO #9022] (From OE-Core rev: 2ebf697b46c42cee8bfa6d2e6087397f8cce385c) Signed-off-by: Kai Kang <kai.kang@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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5d06f00471
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57a525ca72
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@ -57,7 +57,7 @@ if test "x`echo $GROUPADD_PARAM | tr -d '[:space:]'`" != "x"; then
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opts=`echo "$GROUPADD_PARAM" | cut -d ';' -f 1`
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remaining=`echo "$GROUPADD_PARAM" | cut -d ';' -f 2-`
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while test "x$opts" != "x"; do
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perform_groupadd "$SYSROOT" "$OPT $opts" 10
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perform_groupadd "$SYSROOT" "$OPT $opts"
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if test "x$opts" = "x$remaining"; then
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break
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fi
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@ -73,7 +73,7 @@ if test "x`echo $USERADD_PARAM | tr -d '[:space:]'`" != "x"; then
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opts=`echo "$USERADD_PARAM" | cut -d ';' -f 1`
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remaining=`echo "$USERADD_PARAM" | cut -d ';' -f 2-`
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while test "x$opts" != "x"; do
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perform_useradd "$SYSROOT" "$OPT $opts" 10
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perform_useradd "$SYSROOT" "$OPT $opts"
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if test "x$opts" = "x$remaining"; then
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break
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fi
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@ -89,7 +89,7 @@ if test "x`echo $GROUPMEMS_PARAM | tr -d '[:space:]'`" != "x"; then
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opts=`echo "$GROUPMEMS_PARAM" | cut -d ';' -f 1`
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remaining=`echo "$GROUPMEMS_PARAM" | cut -d ';' -f 2-`
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while test "x$opts" != "x"; do
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perform_groupmems "$SYSROOT" "$OPT $opts" 10
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perform_groupmems "$SYSROOT" "$OPT $opts"
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if test "x$opts" = "x$remaining"; then
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break
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fi
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@ -4,7 +4,7 @@
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# The following functions basically have similar logic.
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# *) Perform necessary checks before invoking the actual command
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# *) Invoke the actual command, make retries if necessary
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# *) Invoke the actual command with flock
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# *) Error out if an error occurs.
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# Note that before invoking these functions, make sure the global variable
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@ -13,26 +13,16 @@
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perform_groupadd () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "${PN}: Performing groupadd with [$opts] and $retries times of retry"
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bbnote "${PN}: Performing groupadd with [$opts]"
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local groupname=`echo "$opts" | awk '{ print $NF }'`
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local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" = "x"; then
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local count=0
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while true; do
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eval $PSEUDO groupadd $opts || true
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group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" = "x"; then
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bbwarn "${PN}: groupadd command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "${PN}: Tried running groupadd command $retries times without success, giving up"
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fi
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sleep $count
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done
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opts=`echo $opts | sed s/\'/\"/g`
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eval flock -x -w 100 $rootdir${sysconfdir} -c \'$PSEUDO groupadd $opts\' || true
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group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" = "x"; then
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bbfatal "${PN}: groupadd command did not succeed."
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fi
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else
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bbnote "${PN}: group $groupname already exists, not re-creating it"
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fi
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@ -41,26 +31,16 @@ perform_groupadd () {
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perform_useradd () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "${PN}: Performing useradd with [$opts] and $retries times of retry"
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bbnote "${PN}: Performing useradd with [$opts]"
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local username=`echo "$opts" | awk '{ print $NF }'`
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local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" = "x"; then
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local count=0
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while true; do
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eval $PSEUDO useradd $opts || true
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user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" = "x"; then
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bbwarn "${PN}: useradd command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "${PN}: Tried running useradd command $retries times without success, giving up"
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fi
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sleep $count
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done
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opts=`echo $opts | sed s/\'/\"/g`
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eval flock -x -w 100 $rootdir${sysconfdir} -c \'$PSEUDO useradd $opts\' || true
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user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" = "x"; then
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bbfatal "${PN}: useradd command did not succeed."
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fi
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else
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bbnote "${PN}: user $username already exists, not re-creating it"
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fi
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@ -69,8 +49,7 @@ perform_useradd () {
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perform_groupmems () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "${PN}: Performing groupmems with [$opts] and $retries times of retry"
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bbnote "${PN}: Performing groupmems with [$opts]"
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local groupname=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-g" || $i == "--group") print $(i+1) }'`
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local username=`echo "$opts" | awk '{ for (i = 1; i < NF; i++) if ($i == "-a" || $i == "--add") print $(i+1) }'`
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bbnote "${PN}: Running groupmems command with group $groupname and user $username"
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@ -84,25 +63,11 @@ perform_groupmems () {
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fi
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local mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
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if test "x$mem_exists" = "x"; then
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local count=0
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while true; do
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eval $PSEUDO groupmems $opts || true
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mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
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if test "x$mem_exists" = "x"; then
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bbwarn "${PN}: groupmems command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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if test "x$gshadow" = "xno"; then
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rm -f $rootdir${sysconfdir}/gshadow
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rm -f $rootdir${sysconfdir}/gshadow-
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fi
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bbfatal "${PN}: Tried running groupmems command $retries times without success, giving up"
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fi
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sleep $count
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done
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eval flock -x -w 100 $rootdir${sysconfdir} -c \'$PSEUDO groupmems $opts\' || true
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mem_exists="`grep "^$groupname:[^:]*:[^:]*:\([^,]*,\)*$username\(,[^,]*\)*" $rootdir/etc/group || true`"
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if test "x$mem_exists" = "x"; then
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bbfatal "${PN}: groupmems command did not succeed."
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fi
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else
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bbnote "${PN}: group $groupname already contains $username, not re-adding it"
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fi
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@ -115,26 +80,15 @@ perform_groupmems () {
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perform_groupdel () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "${PN}: Performing groupdel with [$opts] and $retries times of retry"
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bbnote "${PN}: Performing groupdel with [$opts]"
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local groupname=`echo "$opts" | awk '{ print $NF }'`
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local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" != "x"; then
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local count=0
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while true; do
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eval $PSEUDO groupdel $opts || true
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group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" != "x"; then
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bbwarn "${PN}: groupdel command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "${PN}: Tried running groupdel command $retries times without success, giving up"
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fi
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sleep $count
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done
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eval flock -x -w 100 $rootdir${sysconfdir} -c \'$PSEUDO groupdel $opts\' || true
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group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" != "x"; then
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bbfatal "${PN}: groupdel command did not succeed."
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fi
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else
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bbnote "${PN}: group $groupname doesn't exist, not removing it"
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fi
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@ -143,26 +97,15 @@ perform_groupdel () {
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perform_userdel () {
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "${PN}: Performing userdel with [$opts] and $retries times of retry"
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bbnote "${PN}: Performing userdel with [$opts]"
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local username=`echo "$opts" | awk '{ print $NF }'`
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local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" != "x"; then
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local count=0
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while true; do
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eval $PSEUDO userdel $opts || true
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user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" != "x"; then
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bbwarn "${PN}: userdel command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "${PN}: Tried running userdel command $retries times without success, giving up"
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fi
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sleep $count
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done
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eval flock -x -w 100 $rootdir${sysconfdir} -c \'$PSEUDO userdel $opts\' || true
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user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" != "x"; then
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bbfatal "${PN}: userdel command did not succeed."
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fi
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else
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bbnote "${PN}: user $username doesn't exist, not removing it"
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fi
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@ -174,25 +117,14 @@ perform_groupmod () {
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set +e
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "${PN}: Performing groupmod with [$opts] and $retries times of retry"
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bbnote "${PN}: Performing groupmod with [$opts]"
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local groupname=`echo "$opts" | awk '{ print $NF }'`
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local group_exists="`grep "^$groupname:" $rootdir/etc/group || true`"
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if test "x$group_exists" != "x"; then
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local count=0
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while true; do
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eval $PSEUDO groupmod $opts
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if test $? != 0; then
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bbwarn "${PN}: groupmod command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "${PN}: Tried running groupmod command $retries times without success, giving up"
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fi
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sleep $count
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done
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eval flock -x -w 100 $rootdir${sysconfdir} -c \'$PSEUDO groupmod $opts\'
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if test $? != 0; then
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bbwarn "${PN}: groupmod command did not succeed."
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fi
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else
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bbwarn "${PN}: group $groupname doesn't exist, unable to modify it"
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fi
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@ -204,25 +136,14 @@ perform_usermod () {
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set +e
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local rootdir="$1"
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local opts="$2"
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local retries="$3"
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bbnote "${PN}: Performing usermod with [$opts] and $retries times of retry"
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bbnote "${PN}: Performing usermod with [$opts]"
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local username=`echo "$opts" | awk '{ print $NF }'`
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local user_exists="`grep "^$username:" $rootdir/etc/passwd || true`"
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if test "x$user_exists" != "x"; then
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local count=0
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while true; do
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eval $PSEUDO usermod $opts
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if test $? != 0; then
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bbwarn "${PN}: usermod command did not succeed. Retrying..."
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else
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break
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fi
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count=`expr $count + 1`
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if test $count = $retries; then
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bbfatal "${PN}: Tried running usermod command $retries times without success, giving up"
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fi
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sleep $count
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done
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eval flock -x -w 100 $rootdir${sysconfdir} -c \'$PSEUDO usermod $opts\'
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if test $? != 0; then
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bbfatal "${PN}: usermod command did not succeed."
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fi
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else
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bbwarn "${PN}: user $username doesn't exist, unable to modify it"
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fi
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