[Exercise Discussion] T4L3 Comparing Points of History

[damithc]

Exercise_ID: sensors-diff

Lesson

https://git-mastery.github.io/lessons/diff/

Exercise learning outcomes

Able to use diff to compare points in history, including staging area and working directory

Exercise setup

Inputs to the new.sh:

Exercise name: {{ Exercise_ID }}
Tags (space separated): git-diff
Requires Git? (defaults to y)  [y/N]: y
Requires Github? (defaults to y)  [y/N]: y
Exercise repo type (local, remote, or ignore) (defaults to 'local'): remote
Exercise repo name (defaults to ...): sensors
Git-Mastery Github repository title (defaults to ''): gm-sensors
Create fork of repository? (defaults to y)  [y/N]: N

Clone https://github.com/git-mastery/gm-sensors as sensors

Run the following commands:

echo -e "5193\n8042\n6721\n4389\n2075\n9510\n3642\n7281\n5904\n1837\n4416\n9032\n7765\n6208\n3589\n8471\n2940\n1683\n7352\n5129" > west.csv
echo -e "6841\n2307\n9754\n4169\n5823\n3086\n7590\n8420\n1679\n5034\n2918\n7645\n8301\n4576\n9208\n3461\n5789\n6940\n1235\n8890" > north.csv
echo -e "7412\n5068\n8921\n3754\n2809\n6197\n4531\n9674\n1185\n7326\n5401\n8937\n2640\n7083\n5914\n3208\n8745\n4069\n1592\n6831" > south.csv

git add north.csv

Instructions for students

[Scenario: A system is using Git to record data received daily from for sensors, each monitoring one of directions east, west, north, south. Each sensor provides 20 integer values, which are stored in a csv file (e.g., values from the sensor monitoring the east direction are recorded as east.csv). Data for each day is recorded as one commit.

Task:

See https://git-mastery.github.io/lessons/diff/exercise-sensors-diff.html

Exercise grading

Verify the answers are correct

Q: Which are the new values in staged files?
A: 7590

Q: Which are the new values in modified but unstaged files?
A: 4531 3642

Q: Which files have changed from Jan 09th to Jan 15th?
A: north.csv south.csv west.csv

Q: Which new values are new in north.csv on Jan 10th, compared to Jan 01st?
A: 3471

Requires remote repository?

Yes

Additional remarks

No response

[jovnc]

Requires Github? (defaults to y) [y/N]: N

@damithc @woojiahao For set up in new.sh, should we set require github to y, as it seems like for cloning repo, there is no longer the clone_repo util in exercise_utils, instead it seems to have been changed to clone_repo_with_gh. This also applies to the new issues created as well.

This change seem to also have broken some hands on, where clone_repo is used.

[damithc]

Requires Github? (defaults to y) [y/N]: N

@damithc @woojiahao For set up in new.sh, should we set require github to y, as it seems like for cloning repo, there is no longer the clone_repo util in exercise_utils, instead it seems to have been changed to clone_repo_with_gh. This also applies to the new issues created as well.

Good catch, @jovnc
I've changed it to y.

This change seem to also have broken some hands on, where clone_repo is used.

Thanks for raising this. Perhaps submit a PR to fix them?

[VikramGoyal23]

@jovnc There is a new function for cloning with git, called clone_repo_with_git. We can now choose to clone a repo with either git or GitHub.

[jovnc]

@jovnc There is a new function for cloning with git, called clone_repo_with_git. We can now choose to clone a repo with either git or GitHub.

Should we standardise using which one for which purpose?

git: benefit is that is non-dependent on github (can use for bitbucket, etc.)

gh: benefit is that can justspecify OWNER/REPO instead of full URL, git authentication handled by Github CLI, automatic setup of upstream for forks

Other than that, they are functionally the same