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Top Forums Programming How to create a new file in a CVS repository Post 302504050 by drl on Sunday 13th of March 2011 10:53:24 PM
Old 03-13-2011
Hi.

I found:
Quote:
When you add a file it is added only on the branch which you are working on (see section Branching and merging). You can later merge the additions to another branch if you want (see section Merging can add or remove files).
-- CVS--Concurrent Versions System - Adding, removing, and renaming files and directories

That suggests that you can add files to a branch, but in quick skim I saw no examples. If I get some time, I'll experiment ... cheers, drl

Google search "add file to cvs branch" had a number of hits, not all appropriate, of course.

---------- Post updated at 21:53 ---------- Previous update was at 09:53 ----------

Hi.

I installed cvs in a VM and wrote this script:
Code:
#!/usr/bin/env bash

# @(#) run1	Demonstrate creation, staging, branching of cvs repository.

# Utility functions: print-as-echo, print-line-with-visual-space, debug.
pe() { for i;do printf "%s" "$i";done; printf "\n"; }
pl() { pe;pe "-----" ;pe "$*"; }
db() { ( printf " db, ";for i;do printf "%s" "$i";done; printf "\n" ) >&2 ; }
db() { : ; }
C=$HOME/bin/context && [ -f $C ] && . $C cvs

pl " Results:"
./create-repo
./stage-files
./make-branch

exit 0

producing:
Code:
% ./run1

Environment: LC_ALL = C, LANG = C
(Versions displayed with local utility "version")
OS, ker|rel, machine: Linux, 2.6.32-29-generic, i686
Distribution        : Ubuntu 10.04.2 LTS (lucid) 
GNU bash 4.1.5
cvs - ( /usr/bin/cvs Nov 10 2008 )

-----
 Results:

CVSROOT
N myproj/collected.c
N myproj/main.c

No conflicts created by this import

cvs checkout: Updating myproj
U myproj/collected.c
U myproj/main.c

total 12
drwxr-x--- 2 drl drl 4096 Mar 13 21:30 CVS
-rw-r--r-- 1 drl drl   46 Mar 13 21:30 collected.c
-rw-r--r-- 1 drl drl  220 Mar 13 21:30 main.c
cvs tag: Tagging .
T collected.c
T main.c
cvs tag: Tagging .
T collected.c
T main.c
cvs update: Updating .
cvs add: scheduling file `suba.c' for addition on branch `new_stuff_1'
cvs add: use `cvs commit' to add this file permanently
cvs add: scheduling file `subb.c' for addition on branch `new_stuff_1'
cvs add: use `cvs commit' to add this file permanently
cvs commit: Examining .
/home/drl/try/user-problem/1019/repo/myproj/Attic/suba.c,v  <--  suba.c
new revision: 1.1.2.1; previous revision: 1.1
/home/drl/try/user-problem/1019/repo/myproj/Attic/subb.c,v  <--  subb.c
new revision: 1.1.2.1; previous revision: 1.1

As you can see just above, the new files were added to the branch. I recall getting an error message similar to the one you posted, but I could not elicit it just now. I did not try to merge the branch into main.

This is more of an academic question for me. We used cvs at a place I worked and one person in our group was responsible for merging branches back into main for each end-of-development-phase. It was always a struggle, often taking days to get everything right.

I think you are wise to stay away from branches unless you absolutely need to deal with them. If you do need them, then you can experiment until you are comfortable.

Good luck ... cheers, drl
 

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