Copyright © 2020-2021,2022 by Thomas E. Dickey
Here is the rcs-blame program written by Michael Chapman.
According to the change-log, Michael Chapman wrote blame in 2004, making minor fixes in 2006. This was on SourceForge; however the project page went away some time in 2018.
I happened to notice this program because I was looking for programs to compare with rcshist. Debian had a package; I installed it on my Debian 6 in 2012.
I noticed that the project page was defunct because it broke the FreeBSD port. Not only the SourceForge page was defunct, but the Internet Archive had no copies of the source. I located the source on ftp.sunet.se.
Like the rcshist tool, this is used for analyzing changes using the RCS history of a file:
blame (like CVS annotate and its descendents) shows a summary for each line of the file to tell when that line was last changed.
without any options, rcshist displays all of the changes made to a file, with a header for each showing when the change was made.
See the changelog for details:
As part of maintenance,
I disentangled it from automake,
am working to repair the configure script, and
fix compiler warnings, as usual.