From: Han-Wen Nienhuys <hanwen@xxxxxxxxxx>
The new method uses the update_index counter, which isn't susceptible to clock
inaccuracies.
Signed-off-by: Han-Wen Nienhuys <hanwen@xxxxxxxxxx>
---
reftable: document an alternate cleanup method on Windows
The new method uses the update_index counter, which isn't susceptible to
clock inaccuracies.
Signed-off-by: Han-Wen Nienhuys hanwen@xxxxxxxxxx
Published-As: https://github.com/gitgitgadget/git/releases/tag/pr-git-1001%2Fhanwen%2Fwindows-2-v1
Fetch-It-Via: git fetch https://github.com/gitgitgadget/git pr-git-1001/hanwen/windows-2-v1
Pull-Request: https://github.com/git/git/pull/1001
Documentation/technical/reftable.txt | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/Documentation/technical/reftable.txt b/Documentation/technical/reftable.txt
index 3ef169af27d8..d7c3b645cfb0 100644
--- a/Documentation/technical/reftable.txt
+++ b/Documentation/technical/reftable.txt
@@ -1011,8 +1011,13 @@ reftable stack, reload `tables.list`, and delete any tables no longer mentioned
in `tables.list`.
Irregular program exit may still leave about unused files. In this case, a
-cleanup operation can read `tables.list`, note its modification timestamp, and
-delete any unreferenced `*.ref` files that are older.
+cleanup operation should proceed as follows:
+
+* take a lock `tables.list.lock` to prevent concurrent modifications
+* refresh the reftable stack, by reading `tables.list`
+* for each `*.ref` file, remove it if
+** it is not mentioned in `tables.list`, and
+** its max update_index is not beyond the max update_index of the stack
Alternatives considered
base-commit: 89b43f80a514aee58b662ad606e6352e03eaeee4
--
gitgitgadget
