diff options
Diffstat (limited to 'scripts/wsrep_sst_common.sh')
| -rw-r--r-- | scripts/wsrep_sst_common.sh | 46 |
1 files changed, 43 insertions, 3 deletions
diff --git a/scripts/wsrep_sst_common.sh b/scripts/wsrep_sst_common.sh index 16607470f2c..5e134570881 100644 --- a/scripts/wsrep_sst_common.sh +++ b/scripts/wsrep_sst_common.sh @@ -45,28 +45,68 @@ case "$1" in case "${WSREP_SST_OPT_ADDR}" in \[*) # IPv6 + # Remove the starting and ending square brackets, if present: addr_no_bracket=${WSREP_SST_OPT_ADDR#\[} readonly WSREP_SST_OPT_HOST_UNESCAPED=${addr_no_bracket%%\]*} + # Square brackets are needed in most cases: readonly WSREP_SST_OPT_HOST="[${WSREP_SST_OPT_HOST_UNESCAPED}]" + # Some utilities and subsequent code require an address + # without square brackets: readonly WSREP_SST_OPT_HOST_ESCAPED="\\[${WSREP_SST_OPT_HOST_UNESCAPED}\\]" + readonly WSREP_SST_OPT_HOST_IPv6=1 ;; *) readonly WSREP_SST_OPT_HOST=${WSREP_SST_OPT_ADDR%%[:/]*} readonly WSREP_SST_OPT_HOST_UNESCAPED=$WSREP_SST_OPT_HOST readonly WSREP_SST_OPT_HOST_ESCAPED=$WSREP_SST_OPT_HOST + readonly WSREP_SST_OPT_HOST_IPv6=0 ;; esac + # Let's remove the leading part that contains the host address: remain=${WSREP_SST_OPT_ADDR#${WSREP_SST_OPT_HOST_ESCAPED}} + # Let's remove the ":" character that separates the port number + # from the hostname: remain=${remain#:} + # Extract the port number from the address - all characters + # up to "/" (if present): readonly WSREP_SST_OPT_ADDR_PORT=${remain%%/*} - remain=${remain#*/} - readonly WSREP_SST_OPT_MODULE=${remain%%/*} - readonly WSREP_SST_OPT_PATH=${WSREP_SST_OPT_ADDR#*/} + # If the "/" character is present, then the path is not empty: + if [ "${remain#*/}" != "${remain}" ]; then + # This operation removes everything up to the "/" character, + # effectively removing the port number from the string: + readonly WSREP_SST_OPT_PATH=${remain#*/} + else + readonly WSREP_SST_OPT_PATH="" + fi + # The rest of the string is the same as the path (for now): + remain=${WSREP_SST_OPT_PATH} + # If there is one more "/" in the string, then everything before + # it will be the module name, otherwise the module name is empty: + if [ "${remain%%/*}" != "${remain}" ]; then + # This operation removes the tail after the very first + # occurrence of the "/" character (inclusively): + readonly WSREP_SST_OPT_MODULE=${remain%%/*} + else + readonly WSREP_SST_OPT_MODULE="" + fi + # Remove the module name part from the string, which ends with "/": remain=${WSREP_SST_OPT_PATH#*/} + # If the rest of the string does not match the original, then there + # was something else besides the module name: if [ "$remain" != "${WSREP_SST_OPT_PATH}" ]; then + # Extract the part that matches the LSN by removing all + # characters starting from the very first "/": readonly WSREP_SST_OPT_LSN=${remain%%/*} + # Exctract everything after the first occurrence of + # the "/" character in the string: remain=${remain#*/} + # If the remainder does not match the original string, + # then there is something else (the version number in + # our case): if [ "$remain" != "${WSREP_SST_OPT_LSN}" ]; then + # Let's extract the version number by removing the tail + # after the very first occurence of the "/" character + # (inclusively): readonly WSREP_SST_OPT_SST_VER=${remain%%/*} else readonly WSREP_SST_OPT_SST_VER="" |