Tan Li Hau

@lihautan

https://lihautan.com

Web Frontend - Platform

GIT GUDDER

https://youtu.be/vpFKAV1Zy5Y

GIT

  • git merge
  • git reset
  • git cherry-pick
  • git revert
  • git rebase
  • git log
  • git reflog
  • git bisect

GIT MERGE

"Fast Forward"

"Fast Forward"

"Fast Forward"

# in Branch A

git checkout branch-a

 

git merge master

 

# or

 

git merge --ff master

"Non-Fast Forward"

"Non-Fast Forward"

"Non-Fast Forward"

# in Branch A

git checkout branch-a

 

git merge master

 

# or

 

git merge --no-ff master

GIT PULL

= git fetch origin branch-a

   + git merge origin/branch-a

GIT PULL

= git fetch origin branch-a

   + git merge origin/branch-a

GIT PULL

= git fetch origin branch-a

   + git merge origin/branch-a

git push origin branch-a

GIT RESET

GIT RESET --HARD

GIT RESET --HARD

git reset --hard branch-a

GIT RESET --HARD

git reset --hard branch-a

GIT RESET --HARD

git reset --hard #d

GIT RESET --HARD

git reset --hard #d

GIT CHERRY-PICK

GIT CHERRY-PICK

GIT CHERRY-PICK

git cherry-pick branch-a

GIT CHERRY-PICK

git cherry-pick branch-a

GIT CHERRY-PICK

git cherry-pick branch-c

GIT CHERRY-PICK

git cherry-pick branch-c

GIT REVERT

GIT REVERT

GIT REVERT

git revert #1

GIT REVERT

git revert #1

GIT REVERT

GIT REVERT

GIT REVERT

master: git revert #1

GIT REVERT

master: git revert #1

GIT REVERT

feat/a: git merge master

GIT REVERT

feat/a: git merge master

GIT REVERT

GIT REVERT

master: git merge feat/a

GIT REVERT

master: git merge feat/a

GIT REVERT

GIT REVERT

feat/a: git merge master

GIT REVERT

feat/a: git merge master

GIT REVERT

feat/a: git revert ~#1

GIT REVERT

feat/a: git revert ~#1

GIT REVERT

master: git merge feat/a

GIT REVERT

master: git merge feat/a

GIT REBASE

git rebase

branch-a branched out from master

git rebase

git rebase

# in Branch A

git checkout branch-a

 

git rebase master

git rebase

git rebase

git rebase

# in Branch A

git checkout branch-a

 

git rebase --onto branch-b master branch-a

git rebase

# in Branch A

git checkout branch-a

 

git rebase --onto branch-b master

git rebase

# in Branch A

git checkout branch-a

 

git rebase --onto branch-b #1

#1

git rebase

# in Branch A

git checkout branch-a

 

git rebase --onto #1 #1

#1

git rebase

# in Branch A

git checkout branch-a

 

git rebase #1

#1

git rebase --interactive

#1

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 pick commit msg 3

#4 pick commit msg 4

#5 pick commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

# Rebase #1..#6 onto #1 (5 commands)

#

# Commands:

# p, pick = use commit

# r, reword = use commit, but edit the commit message

# e, edit = use commit, but stop for amending

...

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 drop commit msg 3

#4 pick commit msg 4

#5 pick commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 drop commit msg 3

#4 pick commit msg 4

#5 pick commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 squash commit msg 3

#4 pick commit msg 4

#5 fixup commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 squash commit msg 3

#4 pick commit msg 4

#5 fixup commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 pick commit msg 3

break

#4 pick commit msg 4

#5 pick commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 pick commit msg 3

break

#4 pick commit msg 4

#5 pick commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

Stopped at #3... commit msg 3

$ git status

interactive rebase in progress; onto 594531e
Last commands done (2 commands done):
   ...
  (see more in file .git/rebase-merge/done)
Next commands to do (3 remaining commands):
   ...

git rebase --interactive

#1

git rebase -i #1

...

$ git add .

$ git commit -m "commit msg 3.1"

git rebase --interactive

#1

git rebase -i #1

...

$ git add .

$ git commit -m "commit msg 3.1"

git rebase --interactive

#1

git rebase -i #1

$ git rebase --continue

git rebase --interactive

#1

git rebase -i #1

$ git rebase --continue

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 edit commit msg 3

#4 pick commit msg 4

#5 pick commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

...

$ git add .

$ git rebase --continue

git rebase --interactive

#1

git rebase -i #1

...

$ git add .

$ git rebase --continue

git rebase --interactive

#1

git rebase -i #1

#2 pick commit msg 2

#3 reword commit msg 3

#4 pick commit msg 4

#5 pick commit msg 5

#6 pick  commit msg 6

git rebase --interactive

#1

git rebase -i #1

# abort

$ git rebase --abort

 

# continue

$ git rebase --continue

GIT PULL

= git fetch origin branch-a

   + git merge origin/branch-a

GIT PULL --REBASE

= git fetch origin branch-a

   + git rebase origin/branch-a

GIT PULL --REBASE

= git fetch origin branch-a

   + git rebase origin/branch-a

git rebase

git rebase

git rebase

git rebase

git rebase

git rebase

git rebase

git rebase

GIT LOG

git log --graph --pretty='%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit

 

aliased to glol

--since=<date>

--after=<date>

--until=<date>

--before=<date>

--grep=<pattern>

--invert-grep

--all-match

--min-parents=<number>

--max-parents=<number>

--merges

--no-merges

--first-parent

GIT REFLOG

GIT BISECT

$ git bisect start
$ git bisect bad v2.5.1
$ git bisect good v2.6.13

 

$ git bisect start
$ git bisect bad v2.5.1
$ git bisect good v2.6.13

 

Bisecting: 675 revisions left to test after this (roughly 10 steps)

 

$ git bisect start
$ git bisect bad v2.5.1
$ git bisect good v2.6.13

 

Bisecting: 675 revisions left to test after this (roughly 10 steps)

 

$ git bisect good

 

$ git bisect start
$ git bisect bad v2.5.1
$ git bisect good v2.6.13

 

Bisecting: 675 revisions left to test after this (roughly 10 steps)

 

$ git bisect good

 

Bisecting: 337 revisions left to test after this (roughly 9 steps)

 

 
$ git bisect start
$ git bisect bad v2.5.1
$ git bisect good v2.6.13

 

Bisecting: 675 revisions left to test after this (roughly 10 steps)

 

$ git bisect good

 

Bisecting: 337 revisions left to test after this (roughly 9 steps)

 

$ git bisect bad

 

$ git bisect start
$ git bisect bad v2.5.1
$ git bisect good v2.6.13

 

Bisecting: 675 revisions left to test after this (roughly 10 steps)

 

$ git bisect good

 

Bisecting: 337 revisions left to test after this (roughly 9 steps)

 

$ git bisect bad

 

Bisecting: 168 revisions left to test after this (roughly 8 steps)

 

$ git bisect start
$ git bisect bad v2.5.1
$ git bisect good v2.6.13

 

Bisecting: 675 revisions left to test after this (roughly 10 steps)

 

$ git bisect good

 

Bisecting: 337 revisions left to test after this (roughly 9 steps)

 

$ git bisect bad

 

Bisecting: 168 revisions left to test after this (roughly 8 steps)

 

$ git bisect reset

good / bad

old / new

good / bad

old / new

git bisect start --term-old fast --term-new slow

THANK YOU

GIT: Manipulating your history

By Li Hau Tan

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GIT: Manipulating your history

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