Editing User:Vikram Atreya/GSoC21/Log

= Development Logs =

== Community Bonding Period ==
* Forked github repo and compiled working version of BRL-CAD 
* Made the pages for project plan and dev logs
* Ideated various ways to implement undo and set constraints

== Weekly update - Coding Period ==
* Week - 1
** Day 1-2 
*** Working version of undo command implemented in mged which prints name of database when command is given.
*** Understood how commands use wrapper functions and function of cmd_ged_plain_wrapper()
*** Set flags -n and -h aimed to execute multiple undos and show usage respectively
*** Understood how hidden objects work, have to explore temporary file alternative to save backup objects
*** Stuck, trying to iterate over all objects in database but not finding the right function
*** Finally found way to iterate over all objects from move_all.c
*** Converted undo.c to undo.cpp so that code can be more functional
** Day 3-4
*** Had a discussion with my mentor how to proceed further on the undo
*** Data accesible over all processes stored in _GLOBAL as name, value pairs
*** Name of the last added object and last killed object stored in _GLOBAL
*** Wrappers of make and kill modified to add the labels
*** Introduced 3 variables in undo.cpp to keep track of latest_change and then take necessary action to undo
** Day 5-6
*** Enabled undo for in command; Now working to enable undo for killall
*** Did tutorials to understand how combinations and regions work
*** Went in the wrong direction intially; Took a day to understand how combinations are stored 
* Week - 2
** Day 1-2 
*** Encountered many bugs while implementing undo for killall
*** Ubuntu had some problems; mouse and keyboard stopped working and stopped work for sometime
*** Tired refactoring code of backup storage for make; Chose to make a gmd_cmd for it but did not happen, also felt it was not the best option
*** Succesfully implemented undo for kill by modifying code in libged/killrefs; Might have to write a new wrapper for this
*** Created new wrapper for g (group) command and implemeted undo for it; Some refinement left here
** Day 3-4
*** Refined code of g cmd undo and updated PR
*** Attempt at reefactoring code to libged/undo.cpp failed; Not right place to put the code
*** Refactored make's undo code into mged/utility1.c and replaced code in make, in and g
*** Solved major bug that made children objects disappear when any object was killed
*** logic: renamed all leaves by adding sufffix, thereby poiting to imaginary objects and not hiding the references it had previously
** Day 5-6
*** Implemented undo for mv and mvall
*** Also restructured code in undo.cpp to accommodate more cmds easily
*** Made a spreadsheet with status of implementation for all commands

* Week - 3
** Day 1-2
*** Solved a long pending bug
** Day 3-4
*** Took a break
** Day 5-6
*** Started work on storing objects as data in binary objects
*** Understood code of mk_binunif, make and libged/bo.c

* Week - 4
** Day 1-2
*** Done writing basic test to store and recover objects from a binary object
*** Stored internal data in binary object, storing external data is better since it contains type information as well
*** Switched code from storing internal to external of object
@@ Line 58: / Line 58: @@
 *** Stored internal data in binary object, storing external data is better since it contains type information as well
 *** Switched code from storing internal to external of object
-** Day 3-4
-*** Ideated and tried different ways in which we could store the recovery data
-*** Wrote code implementing a new struct in ged/defines.h
-*** Mimicked history implementation for the struct
-** Day 5-6
-*** Implemented undo using the struct but realized it would not work
-*** Thought of using char** arrays to store the commands
-*** Have to discuss with mentor on a better approach