The Theory of Iron
Yaron Minsky / Jane Street Group
Review with a linear process
R1
R2
R3
R4
Review with a branching process
R1
F1
F2
F3
R2
R3
R4
G1
G2
G3
R5
Don't believe the merge
A
C
B
M
M'
?
The lifetime of a feature
R1
F1
R2
R3
F2
R4
Reading a merge
R1
R2
R3
F2
R4
F1
Reading a merge (textually)
Reading a merge (textually)
The lifetime of an
Iron feature
jane
jane/a
jane
jane/a
jane
jane
jane/a
jane
jane
fe create jane/a
hg commit
fe review
fe rebase
fe review
fe release
Going deeper
jane/fe
jane
jane/fe/improve-remind-email
jane/fe/fix-patdiff4-colors
jane/fe/new-obligations
jane/fe/new-obligations/k-of-n
Iron's Gates
Review
CRs
Tests and Types
Iron's Deficiencies
- Speed
- Surgery on features
- Comprehensible history
- Complex merge flows
Iron's Core
- Feature = base + tip
- Constrained merges
- Hierarchical features
- Rebase/Release as communication primitives
- Don't be boring
- Have a precise (not accurate) model of review
- Integrate review, release management, and version control