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-rw-r--r--config/utils/gen_config_lib.py19
1 files changed, 19 insertions, 0 deletions
diff --git a/config/utils/gen_config_lib.py b/config/utils/gen_config_lib.py
index e75387fb..1e7229be 100644
--- a/config/utils/gen_config_lib.py
+++ b/config/utils/gen_config_lib.py
@@ -18,6 +18,7 @@ def load_custom_filters(environment):
# TODO deprecate ipaddr_index and netmask for the better ipnet ones
filter_list = {
'dpkg_arch': filter_dpkg_arch,
+ 'storage_size_num': filter_storage_size_num,
'ipnet_hostaddr': filter_ipnet_hostaddr,
'ipnet_hostmin': filter_ipnet_hostmin,
'ipnet_hostmax': filter_ipnet_hostmax,
@@ -52,6 +53,24 @@ def filter_dpkg_arch(arch, to_dpkg=True):
return arch_dpkg_table[arch]
+def filter_storage_size_num(size_str):
+ """Convert human-readable size string to a string convertible to float"""
+
+ # pattern: '^[1-9][\d\.]*[MGT]B?$', multiplier=1000 (not KiB)
+ if size_str.endswith('B'):
+ size_str = size_str[:-1]
+ try:
+ size_num = 1000000
+ for multiplier in ['M', 'G', 'T']:
+ if size_str.endswith(multiplier):
+ return '{:.2f}'.format(size_num * float(size_str[:-1]))
+ size_num = size_num * 1000
+ return '{:.2f}'.format(float(size_str))
+ except ValueError as ex:
+ logging.error(size_str + " is not a valid size string")
+ raise
+
+
def filter_ipnet_hostaddr(network_cidr, index):
"""Return the host IP address on given index from an IP network"""
try: