Tony, there is a SCM used on IBM Mainframes called ENDEVOR that gives this type of history. see https://en.wikipedia.org/wiki/Endevor
and https://www.ca.com/us/products/ca-endevor-software-change-manager.h tml The other products were called Panvalet and Librarian. I can no longer provide cut & paste examples, but maybe someone on the list can. Maybe the CA sites have some examples. The rough algorithm is illustrated by the following example. The way it works is that the first "check-in" is level 0, say, in May 1990. Say the code is in COBOL. There is no DIFF, as it is the first add. Say the code is lines 500 to 503: 500 0000 MOVE SPACES TO CUST-NAME. 501 0000 MOVE ZEROES TO CUST-PHONE. 502 0000 MOVE "BEER" TO CUST-FAVE-DRINK. The code is "checked-out" (and locked or owned) by a developer in Dec 1990, modified with an modification and a deletion, and then "checked- in" in Feb 1991. This is level 1. 500 0000 MOVE SPACES TO CUST-NAME. 501 -001 MOVE ZEROES TO CUST-PHONE. 502 -001 MOVE "BEER" TO CUST-FAVE-DRINK. 502 +001 MOVE "CIDER" TO CUST-FAVE-DRINK. In March 1992, another developer, "checked-out" and then "checked-in" (level 2) one new line. 500 0000 MOVE SPACES TO CUST-NAME. 501 -001 MOVE ZEROES TO CUST-PHONE. 502 +002 MOVE "RASBERRY" TO CUST-FAVE-JAM-OR-CONSERVE. 503 -001 MOVE "BEER" TO CUST-FAVE-DRINK. 503 +001 MOVE "CIDER" TO CUST-FAVE-DRINK. The diff output can be toggled to give the current "check-in", in this case the "BEER" line and the CUST-PHONE line would not be shown. Or, deleted lines are excluded. Modified lines are inserts(+) and deletes(-). Note, the parallel diff with colours in Fossil wouldn't quite suit a 3 or 4 version comparison. Large block inserts and deletes, and changing indentation were a challenge. COBOL has a line structure: Cols 1-6, numbering (optional) Col 7 - either space for a code line or '*' for a comment line Cols 8 thru 72 the code or comment Cols 73 thru 80, numbering (optional) - some people used these columns for version control - effectively a small inline comment This 'fixed' format made it a bit easier. regs, Kev ----------- Date: Tue, 1 Aug 2017 15:01:18 +0300 From: "Tony Papadimitriou" <to...@acm.org> To: "Fossil SCM user's discussion" <fossil-users@lists.fossil-scm.org> Subject: [fossil-users] Is there a way to see history (e.g., annotate) for a single line of code? When doing ‘annotate’ on a certain file version I see the most recent commit responsible for each line in the file. That’s great! However, if I want to know which previous commits (history) touched one specific line, is there some way to do this? Thanks. _______________________________________________ fossil-users mailing list fossil-users@lists.fossil-scm.org http://lists.fossil-scm.org:8080/cgi-bin/mailman/listinfo/fossil-users
