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From:
Christian Weisgerber <naddy@mips.inka.de>
Subject:
log -b commit order?
To:
gameoftrees@openbsd.org
Date:
Tue, 14 Feb 2023 20:36:44 +0100

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  • Christian Weisgerber:

    log -b commit order?

About two weeks ago I committed jca's LLVM 15 diff to a local branch
in my OpenBSD src repository, and I have performed a number of
"got merge master" commits since.  The git log --graph output looks
like two spaghettis who love each other very much. ;-)

When I use got or tog log -b to show the merged commits, the resultant
ordering is... strange.

$ got log -s
2023-02-14 llvm15  merge refs/heads/master into refs/heads/llvm15
2023-02-13 b433205 merge refs/heads/master into refs/heads/llvm15
2023-02-12 63a41c1 merge refs/heads/master into refs/heads/llvm15
2023-02-09 7c80d1d merge refs/heads/master into refs/heads/llvm15
2023-02-03 6e9f183 merge refs/heads/master into refs/heads/llvm15
2023-02-02 c2ad0c1 llvm: update to 15.0.7
[...]

Git puts all the commits that were brought in by the lastest merge
between the two merge commits:

$ git log --oneline llvm15 | cut -c1-72
96f584075b7 merge refs/heads/master into refs/heads/llvm15
d765bd22e38 Add -mpls to the route monitor case. It is an allowed addres
715494ad5dd use pragma pack around PPTable_t definitions
12139144481 use pragma pack around dmub_addr definition
f289c483c58 regen
97b0c01557f Backout previous. Assertion was triggered within tsleep().
6a3029d85ff Fix scmi(4) entry.
503521236de smci -> scmi
873f6148a9d Typofix -ssthresh in HISTORY
b4508d7f4f3 sync
5cf727077ff scmi(4)
2fb1186fe0e Add a driver for the ARM System Control and Management Inter
422309e7553 Add RK356x TSADC clocks.
305ac5f9173 Add dwqe(4), a driver for the Synopsis DesignWare Ethernet Q
f3cb3cf5c8c Mention TCS4525.
f478b5544f0 Add support for the Shenzhen Tangcheng Technology TCS4525 vo
db911497a2e Adjust function prototype of a stub function after change to
988ba0ba4c3 Pass struct rib_entry to rde_generate_updates() instead of s
b433205fa21 merge refs/heads/master into refs/heads/llvm15
[...]

By contrast, got produces a history I can't make head or tail of:

$ got log -b -s | cut -c1-72
2023-02-14 llvm15  merge refs/heads/master into refs/heads/llvm15
2023-02-14 master  Add -mpls to the route monitor case. It is an allowed
2023-02-13 b433205 merge refs/heads/master into refs/heads/llvm15
2023-02-14 715494a use pragma pack around PPTable_t definitions
2023-02-13 0b0de91 Also lock the map in the execve-driven calls to uvm_m
2023-02-12 63a41c1 merge refs/heads/master into refs/heads/llvm15
2023-02-14 1213914 use pragma pack around dmub_addr definition
2023-02-13 aea972f Upon fork, copy the copyin_check structure to the new
2023-02-11 454ecbe non-padded 64-bit system calls arrived 2021/12/23, ov
2023-02-09 7c80d1d merge refs/heads/master into refs/heads/llvm15
2023-02-14 f289c48 regen
2023-02-13 3bd9ea3 regen
2023-02-11 dbaa3ef sync
2023-02-09 efd8dad consolidate mbuf header parsing on device driver laye
2023-02-03 6e9f183 merge refs/heads/master into refs/heads/llvm15
2023-02-14 97b0c01 Backout previous. Assertion was triggered within tsle
2023-02-13 0a470f0 asn1x509 test: Remove unnecessary line continuations
2023-02-11 8c7f5cc non-padded 64-bit system calls arrived 2021/12/23, ov
2023-02-09 69fcf33 Recognize the cores on Apple's M2 Pro/Max SoCs.
2023-02-03 a114beb Fix tput when compiled with clang-15 -O2
[...]

The commits are all there, but the order is baffling.

-- 
Christian "naddy" Weisgerber                          naddy@mips.inka.de