David,
PCSWMM files normally won't exceed 1 gigabyte. Rest of answers:
* how much of a file changes between model runs?
Really depends … ranging from if perhaps a global model parameter edit is done
during an iteration, or just changes to a study area like a detention pond.
* Are the files text or binary?
Text
* Are they inputs to software, or outputs?
Input file gets modified during design/analysis by the modeler.
Hopefully, this helps. thanks,
Jason Kimmet
www.allworldpm.com<https://www.allworldpm.com>
From: David Chapman
Sent: Thursday, September 9, 2021 4:29 PM
To: Jason Kimmet ; users@subversion.apache.org
Subject: Re: SVN: PCSWMM Use
On 9/9/2021 1:53 PM, Jason Kimmet wrote:
Subversion Users,
We are working on a large stormwater modeling program where we will be keeping
track of a lot of PCSWMM file type models. We are exploring version management
options and have come across the SVN community. I understand this is great for
text-style files, however, I would like to know if you have seen users utilize
this for engineering plans such as PCSWMM?
Many version control systems, Subversion included, work best when the new
version of a file looks much the same as the previous version. Otherwise you
could be storing multiple full versions of the files.
Some features of Subversion (like "show lines that changed") aren't available
for binary files, but if the changes in a binary file are limited to specific
sections, you still get space-saving benefits in the repository; see
http://help.collab.net/index.jsp?topic=/faq/svnbinary.html<https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fhelp.collab.net%2Findex.jsp%3Ftopic%3D%2Ffaq%2Fsvnbinary.html&data=04%7C01%7Cjkimmet%40allworldmail.com%7C0ff1c55f5f0a4b082c3508d973d8e298%7C59b582c195624de2a434b64a585e99be%7C1%7C1%7C637668197637323704%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=s%2FpDi4MrtvGm8sAsF0ZyPJTQ0QJNdbMw%2FjFjVAoFm%2BM%3D&reserved=0>
and
https://svnbook.red-bean.com/en/1.7/svn.forcvs.binary-and-trans.html<https://nam12.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsvnbook.red-bean.com%2Fen%2F1.7%2Fsvn.forcvs.binary-and-trans.html&data=04%7C01%7Cjkimmet%40allworldmail.com%7C0ff1c55f5f0a4b082c3508d973d8e298%7C59b582c195624de2a434b64a585e99be%7C1%7C1%7C637668197637333663%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=C1%2B%2BHu5%2FQzQ4cJW6Fn9ArCS4uBeU4mWUfZF%2BG0%2BYphw%3D&reserved=0>
(both links are old, but binary file handling shouldn't be worse now than
then).
A quick search didn't tell me anything about the PCSWMM format; how much of a
file changes between model runs? Is it text or binary? Are the files very
large (gigabytes or more)? Are they inputs to software, or outputs? Generally
it is assumed that output files can be recreated given the full input
configuration, so program outputs are often left out of the repository.
--
David Chapman dcchap...@acm.org<mailto:dcchap...@acm.org>
Chapman Consulting -- San Jose, CA
EDA Software Developer, Expert Witness
www.chapman-consulting-sj.com<https://nam12.safelinks.protection.outlook.com/?url=http%3A%2F%2Fwww.chapman-consulting-sj.com%2F&data=04%7C01%7Cjkimmet%40allworldmail.com%7C0ff1c55f5f0a4b082c3508d973d8e298%7C59b582c195624de2a434b64a585e99be%7C1%7C1%7C637668197637333663%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000&sdata=JV2Vs3t2okpH3UziGFo7iUQzoRdBxwheToMdIAsTzzk%3D&reserved=0>
2018-2019 Chair, IEEE Consultants' Network of Silicon Valley
