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"git remote rename origin upstream" failed to move origin/HEAD to
upstream/HEAD when origin/HEAD is unborn and performed other
renames extremely inefficiently, which has been corrected.
* ps/remote-rename-fix:
builtin/remote: only iterate through refs that are to be renamed
builtin/remote: rework how remote refs get renamed
builtin/remote: determine whether refs need renaming early on
builtin/remote: fix sign comparison warnings
refs: simplify logic when migrating reflog entries
refs: pass refname when invoking reflog entry callback
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With `refs_for_each_reflog_ent()` callers can iterate through all the
reflog entries for a given reference. The callback that is being invoked
for each such entry does not receive the name of the reference that we
are currently iterating through. This isn't really a limiting factor, as
callers can simply pass the name via the callback data.
But this layout sometimes does make for a bit of an awkward calling
pattern. One example: when iterating through all reflogs, and for each
reflog we iterate through all refnames, we have to do some extra book
keeping to track which reference name we are currently yielding reflog
entries for.
Change the signature of the callback function so that the reference name
of the reflog gets passed through to it. Adapt callers accordingly and
start using the new parameter in trivial cases. The next commit will
refactor the reference migration logic to make use of this parameter so
that we can simplify its logic a bit.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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find_cfg_ent() allocates a struct reflog_expire_entry_option via
FLEX_ALLOC_MEM and inserts it into a linked list in the
reflog_expire_options structure. The entries in this list are never
freed, resulting in a leak in cmd_reflog_expire and the gc reflog expire
maintenance task:
Direct leak of 39 byte(s) in 1 object(s) allocated from:
#0 0x7ff975ee6883 in calloc (/lib64/libasan.so.8+0xe6883)
#1 0x0000010edada in xcalloc ../wrapper.c:154
#2 0x000000df0898 in find_cfg_ent ../reflog.c:28
#3 0x000000df0898 in reflog_expire_config ../reflog.c:70
#4 0x00000095c451 in configset_iter ../config.c:2116
#5 0x0000006d29e7 in git_config ../config.h:724
#6 0x0000006d29e7 in cmd_reflog_expire ../builtin/reflog.c:205
#7 0x0000006d504c in cmd_reflog ../builtin/reflog.c:419
#8 0x0000007e4054 in run_builtin ../git.c:480
#9 0x0000007e4054 in handle_builtin ../git.c:746
#10 0x0000007e8a35 in run_argv ../git.c:813
#11 0x0000007e8a35 in cmd_main ../git.c:953
#12 0x000000441e8f in main ../common-main.c:9
#13 0x7ff9754115f4 in __libc_start_call_main (/lib64/libc.so.6+0x35f4)
#14 0x7ff9754116a7 in __libc_start_main@@GLIBC_2.34 (/lib64/libc.so.6+0x36a7)
#15 0x000000444184 in _start (/home/jekeller/libexec/git-core/git+0x444184)
Close this leak by adding a reflog_clear_expire_config() function which
iterates the linked list and frees its elements. Call it upon exit of
cmd_reflog_expire() and reflog_expire_condition().
Add a basic test which covers this leak. While at it, cover the
functionality from commit commit 3cb22b8efe (Per-ref reflog expiry
configuration, 2008-06-15). We've had this support for years, but lacked
any tests.
Co-developed-by: Jeff King <peff@peff.net>
Signed-off-by: Jacob Keller <jacob.keller@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Make functions that are required to manage `reflog_expire_options`
available elsewhere by moving them into "reflog.c" and exposing them in
the corresponding header. The functions will be used in a subsequent
commit.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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As described in the preceding commit, the per-reflog expiry dates are
stored in a global pair of variables. Refactor the code so that they are
contained in `struct reflog_expire_options` to make the structure useful
in other contexts.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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When expiring reflog entries, it is possible to configure expiry dates
that depend on the name of the reflog. This requires us to store a
couple of different expiry dates:
- The default expiry date for reflog entries that aren't otherwise
specified.
- The per-reflog expiry date.
- The currently active set of expiry dates for a given reference.
While the last item is stored in `struct reflog_expire_options`, the
other items aren't, which makes it hard to reuse the structure in other
places.
Refactor the code so that the default expiry date is stored as part of
the structure. The per-reflog expiry dates will be adapted accordingly
in the subsequent commit.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We're about to expose `struct cmd_reflog_expire_cb` via "reflog.h" so
that we can also use this structure in "builtin/gc.c". Once we make it
accessible to a wider scope though it becomes awkwardly named, as it
isn't only useful in the context of a callback. Instead, the function is
containing all kinds of options relevant to whether or not a reflog
entry should be expired.
Rename the structure to `reflog_expire_options` to prepare for this.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Currently stash shells out to reflog in order to delete refs. In an
effort to reduce how much we shell out to a subprocess, libify the
functionality that stash needs into reflog.c.
Add a reflog_delete function that is pretty much the logic in the while
loop in builtin/reflog.c cmd_reflog_delete(). This is a function that
builtin/reflog.c and builtin/stash.c can both call.
Also move functions needed by reflog_delete and export them.
Helped-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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