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revision: allow --ancestry-path to take an argument

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We have long allowed users to run e.g.
    git log --ancestry-path master..seen
which shows all commits which satisfy all three of these criteria:
  * are an ancestor of seen
  * are not an ancestor of master
  * have master as an ancestor

This commit allows another variant:
    git log --ancestry-path=$TOPIC master..seen
which shows all commits which satisfy all of these criteria:
  * are an ancestor of seen
  * are not an ancestor of master
  * have $TOPIC in their ancestry-path
that last bullet can be defined as commits meeting any of these
criteria:
    * are an ancestor of $TOPIC
    * have $TOPIC as an ancestor
    * are $TOPIC

This also allows multiple --ancestry-path arguments, which can be
used to find commits with any of the given topics in their ancestry
path.

Signed-off-by: Elijah Newren <newren@gmail.com>
Acked-by: Derrick Stolee <derrickstolee@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Elijah Newren
2022-08-19 04:28:10 +00:00
committed by Junio C Hamano
parent 1838e21cff
commit 257418c590
5 changed files with 115 additions and 43 deletions
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2
object.h
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@ -59,7 +59,7 @@ struct object_array {
/*
* object flag allocation:
* revision.h: 0---------10 15 23------26
* revision.h: 0---------10 15 23------27
* fetch-pack.c: 01 67
* negotiator/default.c: 2--5
* walker.c: 0-2