Mercurial > hg
annotate CONTRIBUTING @ 45871:a985c4fb23ca
transaction: change list of journal entries into a dictionary
The transaction object used to keep a mapping table of path names to
journal entries and a list of journal entries consisting of path and
file offset to truncate on rollback. The offsets are used in three
cases. repair.strip and rollback process all of them in one go, but they
care about the order. For them, it is perfectly reasonable to read the
journal back from disk as both operations already involve at least one
system call per journal entry. The other consumer is the revlog logic
for moving from inline to external data storage. It doesn't care about
the order of the journal and just needs to original offset stored.
Further optimisations are possible here to move the in-memory journal to
a set(), but without memoisation of the original revlog size this could
turn it into O(n^2) behavior in worst case when many revlogs need to
migrated.
Differential Revision: https://phab.mercurial-scm.org/D9277
author | Joerg Sonnenberger <joerg@bec.de> |
---|---|
date | Sat, 07 Nov 2020 21:34:09 +0100 |
parents | a492610a2fc1 |
children |
rev | line source |
---|---|
30084
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
1 Our full contribution guidelines are in our wiki, please see: |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
2 |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
3 https://www.mercurial-scm.org/wiki/ContributingChanges |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
4 |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
5 If you just want a checklist to follow, you can go straight to |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
6 |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
7 https://www.mercurial-scm.org/wiki/ContributingChanges#Submission_checklist |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
8 |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
9 If you can't run the entire testsuite for some reason (it can be |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
10 difficult on Windows), please at least run `contrib/check-code.py` on |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
11 any files you've modified and run `python contrib/check-commit` on any |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
12 commits you've made (for example, `python contrib/check-commit |
a492610a2fc1
contributing: add new file with a pointer to the wiki
Augie Fackler <augie@google.com>
parents:
diff
changeset
|
13 273ce12ad8f1` will report some style violations on a very old commit). |