Hi,
This patch series replaces the series I sent out a while ago, which added
"commit annotations". Since "commit notes" was liked much better, here
they are.
It picks up the same idea, having a pseudo-branch whose revisions contain
a .git/objects/??/* like file structure, and whose blobs are the commit
notes.
By default, that pseudo-branch is "refs/notes/commits", but it is
overridable by the config variable core.notesRef, which in turn can be
overridden by the environment variable GIT_NOTES_REF. If the given ref
does not exist yet, it is interpreted as empty.
The biggest obstacle was a thinko about the scalability. Tree objects
take free form name entries, and therefore a binary search by name is not
possible.
Patch 6/6 is only a WIP patch, but it shows the road ahead. It adds code
to generate .git/notes-index from refs/notes/commits (or any other ref you
specify as notes ref), which is reused until refs/notes/commits^{tree}
changes. Patch 6/6 is only meant to assess which data structure yields
best performance, and how big the costs are.
However, as long as there are no public, fetchable commit notes, I think
the first 5 patches are safe for application and testing.
Ciao,
Dscho
Johannes Schindelin (6):
Rename git_one_line() to git_line_length() and export it
Introduce commit notes
Add git-notes
Add a test script for "git notes"
Document git-notes
notes: add notes-index for a substantial speedup.
.gitignore | 1 +
Documentation/cmd-list.perl | 1 +
Documentation/config.txt | 15 ++
Documentation/git-notes.txt | 45 ++++
Makefile | 5 +-
cache.h | 1 +
commit.c | 15 +-
commit.h | 1 +
config.c | 5 +
environment.c | 1 +
git-notes.sh | 61 ++++++
notes.c | 416 ++++++++++++++++++++++++++++++++++++++
notes.h | 9 +
t/t3301-notes.sh | 63 ++++++
t/t3302-notes-index-expensive.sh | 118 +++++++++++
15 files changed, 750 insertions(+), 7 deletions(-)
create mode 100644 Documentation/git-notes.txt
create mode 100755 git-notes.sh
create mode 100644 notes.c
create mode 100644 notes.h
create mode 100755 t/t3301-notes.sh
create mode 100755 t/t3302-notes-index-expensive.sh
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