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Author	SHA1	Message	Date
Nguyễn Thái Ngọc Duy	13f8b72d8c	Convert commit_tree() to take strbuf as message There wan't a way for commit_tree() to notice if the message the caller prepared contained a NUL byte, as it did not take the length of the message as a parameter. Use a pointer to a strbuf instead, so that we can either choose to allow low-level plumbing commands to make commits that contain NUL byte in its message, or forbid NUL everywhere by adding the check in commit_tree(), in later patches. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>	13 years ago
Johan Herland	180619a585	notes.h/c: Propagate combine_notes_fn return value to add_note() and beyond The combine_notes_fn functions uses a non-zero return value to indicate failure. However, this return value was converted to a call to die() in note_tree_insert(). Instead, propagate this return value out to add_note(), and return it from there to enable the caller to handle errors appropriately. Existing add_note() callers are updated to die() upon failure, thus preserving the current behaviour. The only exceptions are copy_note() and notes_cache_put() where we are able to propagate the add_note() return value instead. This patch has been improved by the following contributions: - Jonathan Nieder: Future-proof by always checking add_note() return value - Jonathan Nieder: Improve clarity of final if-condition in note_tree_insert() Thanks-to: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago
Jeff King	a941d5e395	introduce notes-cache interface Notes provide a fast lookup mechanism for data keyed by sha1. This is ideal for caching certain operations, like textconv filters. This patch builds some infrastructure to make it simpler to use notes trees as caches. In particular, caches: 1. don't have arbitrary commit messages. They store a cache validity string in the commit, and clear the tree when the cache validity string changes. 2. don't keep any commit history. The accumulated history of a a cache is just useless cruft. 3. use a looser form of locking for ref updates. If two processes try to write to the cache simultaneously, it is OK if one overwrites the other, losing some changes. It's just a cache, so we will just end up with an extra miss. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>	15 years ago

Author

SHA1

Message

Date

Nguyễn Thái Ngọc Duy

13f8b72d8c

Convert commit_tree() to take strbuf as message

There wan't a way for commit_tree() to notice if the message the caller
prepared contained a NUL byte, as it did not take the length of the
message as a parameter. Use a pointer to a strbuf instead, so that we can
either choose to allow low-level plumbing commands to make commits that
contain NUL byte in its message, or forbid NUL everywhere by adding the
check in commit_tree(), in later patches.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

13 years ago

Johan Herland

180619a585

notes.h/c: Propagate combine_notes_fn return value to add_note() and beyond

The combine_notes_fn functions uses a non-zero return value to indicate
failure. However, this return value was converted to a call to die()
in note_tree_insert().

Instead, propagate this return value out to add_note(), and return it
from there to enable the caller to handle errors appropriately.

Existing add_note() callers are updated to die() upon failure, thus
preserving the current behaviour. The only exceptions are copy_note()
and notes_cache_put() where we are able to propagate the add_note()
return value instead.

This patch has been improved by the following contributions:
- Jonathan Nieder: Future-proof by always checking add_note() return value
- Jonathan Nieder: Improve clarity of final if-condition in note_tree_insert()

Thanks-to: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Johan Herland <johan@herland.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

15 years ago

Jeff King

a941d5e395

introduce notes-cache interface

Notes provide a fast lookup mechanism for data keyed by
sha1. This is ideal for caching certain operations, like
textconv filters.

This patch builds some infrastructure to make it simpler to
use notes trees as caches. In particular, caches:

  1. don't have arbitrary commit messages. They store a
     cache validity string in the commit, and clear the tree
     when the cache validity string changes.

  2. don't keep any commit history. The accumulated history
     of a a cache is just useless cruft.

  3. use a looser form of locking for ref updates. If two
     processes try to write to the cache simultaneously, it
     is OK if one overwrites the other, losing some changes.
     It's just a cache, so we will just end up with an extra
     miss.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

15 years ago

3 Commits (44df2e297025d7a9af6c265dfefb687b09e2537a)