pgr_depthFirstSearch GSoC-2020 Week [-1]

[krashish8]

• Rebased master branch of pgRouting for Release of v3.0.0

git remote -v

origin	git@github.com:krashish8/GSoC-pgRouting.git (fetch)
origin	git@github.com:krashish8/GSoC-pgRouting.git (push)
upstream	https://github.com/pgRouting/pgrouting (fetch)
upstream	https://github.com/pgRouting/pgrouting (push)

git checkout pgr_depthFirstSearch
git fetch upstream
git rebase upstream/master
git push -f

• Started coding my first function pgr_depthFirstSearch.
• Added all the required files for the implementation of this function:

• doc/depthFirstSearch/ - CMakeLists.txt, pgr_depthFirstSearch.rst
• docqueries/depthFirstSearch/ - CMakeLists.txt, doc-pgr_depthFirstSearch.result, doc-pgr_depthFirstSearch.test.sql, test.conf
• include/drivers/depthFirstSearch/ - depthFirstSearch_driver.h
• pgtap/depthFirstSearch/- depthFirstSearch-edge-cases.sql, depthFirstSearch-innerQuery.sql, depthFirstSearch-types-check.sql, no_crash_test-depthFirstSearch.sql
• sql/depthFirstSearch/ - CMakeLists.txt, _depthFirstSearch.sql, depthFirstSearch.sql
• src/depthFirstSearch/ - CMakeLists.txt, depthFirstSearch.c, depthFirstSearch_driver.cpp

• Modified the files in the sql/ and src/ directory, and the depthFirstSearch_driver.h for the current implementation of the function.
• Added the function name in configuration.conf
• Added the function signatures in sql/sigs/pgrouting--3.0.0.sig