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From: "Han-Wen Nienhuys via GitGitGadget" <gitgitgadget@gmail.com>
To: git@vger.kernel.org
Cc: "Han-Wen Nienhuys" <hanwen@google.com>,
	"Jeff King" <peff@peff.net>,
	"Ramsay Jones" <ramsay@ramsayjones.plus.com>,
	"Jonathan Nieder" <jrnieder@gmail.com>,
	"Johannes Schindelin" <Johannes.Schindelin@gmx.de>,
	"Jonathan Tan" <jonathantanmy@google.com>,
	"Josh Steadmon" <steadmon@google.com>,
	"Emily Shaffer" <emilyshaffer@google.com>,
	"Patrick Steinhardt" <ps@pks.im>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Felipe Contreras" <felipe.contreras@gmail.com>,
	"Derrick Stolee" <stolee@gmail.com>,
	"Ævar Arnfjörð Bjarmason" <avarab@gmail.com>,
	"Han-Wen Nienhuys g" <hanwen@google.com>,
	"Han-Wen Nienhuys" <hanwenn@gmail.com>,
	"Han-Wen Nienhuys" <hanwen@google.com>
Subject: [PATCH v7 19/28] reftable: add merged table view
Date: Mon, 19 Apr 2021 11:37:47 +0000
Message-ID: <e3a776f2076cad992eecc22678a01a26e51c59b7.1618832277.git.gitgitgadget@gmail.com> (raw)
In-Reply-To: <pull.847.v7.git.git.1618832276.gitgitgadget@gmail.com>

From: Han-Wen Nienhuys <hanwen@google.com>

This adds an abstract, read-only interface to the ref database.

This primitive is used to construct the read view of the ref database
(the read view is constructed by merging several *.ref files). It also
provides the mechanism to provide a unified view of the refs in the main
repository and the per-worktree refs.

Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
---
 Makefile                   |   2 +
 reftable/merged.c          | 362 +++++++++++++++++++++++++++++++++++++
 reftable/merged.h          |  35 ++++
 reftable/merged_test.c     | 292 ++++++++++++++++++++++++++++++
 reftable/reftable-merged.h |  72 ++++++++
 t/helper/test-reftable.c   |   1 +
 6 files changed, 764 insertions(+)
 create mode 100644 reftable/merged.c
 create mode 100644 reftable/merged.h
 create mode 100644 reftable/merged_test.c
 create mode 100644 reftable/reftable-merged.h

diff --git a/Makefile b/Makefile
index 07814f92fb36..6139f02faabe 100644
--- a/Makefile
+++ b/Makefile
@@ -2414,6 +2414,7 @@ REFTABLE_OBJS += reftable/block.o
 REFTABLE_OBJS += reftable/blocksource.o
 REFTABLE_OBJS += reftable/iter.o
 REFTABLE_OBJS += reftable/publicbasics.o
+REFTABLE_OBJS += reftable/merged.o
 REFTABLE_OBJS += reftable/pq.o
 REFTABLE_OBJS += reftable/reader.o
 REFTABLE_OBJS += reftable/record.o
@@ -2425,6 +2426,7 @@ REFTABLE_OBJS += reftable/writer.o
 
 REFTABLE_TEST_OBJS += reftable/basics_test.o
 REFTABLE_TEST_OBJS += reftable/block_test.o
+REFTABLE_TEST_OBJS += reftable/merged_test.o
 REFTABLE_TEST_OBJS += reftable/pq_test.o
 REFTABLE_TEST_OBJS += reftable/record_test.o
 REFTABLE_TEST_OBJS += reftable/readwrite_test.o
diff --git a/reftable/merged.c b/reftable/merged.c
new file mode 100644
index 000000000000..e5b53da6db3f
--- /dev/null
+++ b/reftable/merged.c
@@ -0,0 +1,362 @@
+/*
+Copyright 2020 Google LLC
+
+Use of this source code is governed by a BSD-style
+license that can be found in the LICENSE file or at
+https://developers.google.com/open-source/licenses/bsd
+*/
+
+#include "merged.h"
+
+#include "constants.h"
+#include "iter.h"
+#include "pq.h"
+#include "reader.h"
+#include "record.h"
+#include "generic.h"
+#include "reftable-merged.h"
+#include "reftable-error.h"
+#include "system.h"
+
+static int merged_iter_init(struct merged_iter *mi)
+{
+	int i = 0;
+	for (i = 0; i < mi->stack_len; i++) {
+		struct reftable_record rec = reftable_new_record(mi->typ);
+		int err = iterator_next(&mi->stack[i], &rec);
+		if (err < 0) {
+			return err;
+		}
+
+		if (err > 0) {
+			reftable_iterator_destroy(&mi->stack[i]);
+			reftable_record_destroy(&rec);
+		} else {
+			struct pq_entry e = {
+				.rec = rec,
+				.index = i,
+			};
+			merged_iter_pqueue_add(&mi->pq, e);
+		}
+	}
+
+	return 0;
+}
+
+static void merged_iter_close(void *p)
+{
+	struct merged_iter *mi = p;
+	int i = 0;
+	merged_iter_pqueue_release(&mi->pq);
+	for (i = 0; i < mi->stack_len; i++) {
+		reftable_iterator_destroy(&mi->stack[i]);
+	}
+	reftable_free(mi->stack);
+}
+
+static int merged_iter_advance_nonnull_subiter(struct merged_iter *mi,
+					       size_t idx)
+{
+	struct reftable_record rec = reftable_new_record(mi->typ);
+	struct pq_entry e = {
+		.rec = rec,
+		.index = idx,
+	};
+	int err = iterator_next(&mi->stack[idx], &rec);
+	if (err < 0)
+		return err;
+
+	if (err > 0) {
+		reftable_iterator_destroy(&mi->stack[idx]);
+		reftable_record_destroy(&rec);
+		return 0;
+	}
+
+	merged_iter_pqueue_add(&mi->pq, e);
+	return 0;
+}
+
+static int merged_iter_advance_subiter(struct merged_iter *mi, size_t idx)
+{
+	if (iterator_is_null(&mi->stack[idx]))
+		return 0;
+	return merged_iter_advance_nonnull_subiter(mi, idx);
+}
+
+static int merged_iter_next_entry(struct merged_iter *mi,
+				  struct reftable_record *rec)
+{
+	struct strbuf entry_key = STRBUF_INIT;
+	struct pq_entry entry = { 0 };
+	int err = 0;
+
+	if (merged_iter_pqueue_is_empty(mi->pq))
+		return 1;
+
+	entry = merged_iter_pqueue_remove(&mi->pq);
+	err = merged_iter_advance_subiter(mi, entry.index);
+	if (err < 0)
+		return err;
+
+	/*
+	  One can also use reftable as datacenter-local storage, where the ref
+	  database is maintained in globally consistent database (eg.
+	  CockroachDB or Spanner). In this scenario, replication delays together
+	  with compaction may cause newer tables to contain older entries. In
+	  such a deployment, the loop below must be changed to collect all
+	  entries for the same key, and return new the newest one.
+	*/
+	reftable_record_key(&entry.rec, &entry_key);
+	while (!merged_iter_pqueue_is_empty(mi->pq)) {
+		struct pq_entry top = merged_iter_pqueue_top(mi->pq);
+		struct strbuf k = STRBUF_INIT;
+		int err = 0, cmp = 0;
+
+		reftable_record_key(&top.rec, &k);
+
+		cmp = strbuf_cmp(&k, &entry_key);
+		strbuf_release(&k);
+
+		if (cmp > 0) {
+			break;
+		}
+
+		merged_iter_pqueue_remove(&mi->pq);
+		err = merged_iter_advance_subiter(mi, top.index);
+		if (err < 0) {
+			return err;
+		}
+		reftable_record_destroy(&top.rec);
+	}
+
+	reftable_record_copy_from(rec, &entry.rec, hash_size(mi->hash_id));
+	reftable_record_destroy(&entry.rec);
+	strbuf_release(&entry_key);
+	return 0;
+}
+
+static int merged_iter_next(struct merged_iter *mi, struct reftable_record *rec)
+{
+	while (1) {
+		int err = merged_iter_next_entry(mi, rec);
+		if (err == 0 && mi->suppress_deletions &&
+		    reftable_record_is_deletion(rec)) {
+			continue;
+		}
+
+		return err;
+	}
+}
+
+static int merged_iter_next_void(void *p, struct reftable_record *rec)
+{
+	struct merged_iter *mi = p;
+	if (merged_iter_pqueue_is_empty(mi->pq))
+		return 1;
+
+	return merged_iter_next(mi, rec);
+}
+
+static struct reftable_iterator_vtable merged_iter_vtable = {
+	.next = &merged_iter_next_void,
+	.close = &merged_iter_close,
+};
+
+static void iterator_from_merged_iter(struct reftable_iterator *it,
+				      struct merged_iter *mi)
+{
+	assert(!it->ops);
+	it->iter_arg = mi;
+	it->ops = &merged_iter_vtable;
+}
+
+int reftable_new_merged_table(struct reftable_merged_table **dest,
+			      struct reftable_table *stack, int n,
+			      uint32_t hash_id)
+{
+	struct reftable_merged_table *m = NULL;
+	uint64_t last_max = 0;
+	uint64_t first_min = 0;
+	int i = 0;
+	for (i = 0; i < n; i++) {
+		uint64_t min = reftable_table_min_update_index(&stack[i]);
+		uint64_t max = reftable_table_max_update_index(&stack[i]);
+
+		if (reftable_table_hash_id(&stack[i]) != hash_id) {
+			return REFTABLE_FORMAT_ERROR;
+		}
+		if (i == 0 || min < first_min) {
+			first_min = min;
+		}
+		if (i == 0 || max > last_max) {
+			last_max = max;
+		}
+	}
+
+	m = reftable_calloc(sizeof(struct reftable_merged_table));
+	m->stack = stack;
+	m->stack_len = n;
+	m->min = first_min;
+	m->max = last_max;
+	m->hash_id = hash_id;
+	*dest = m;
+	return 0;
+}
+
+/* clears the list of subtable, without affecting the readers themselves. */
+void merged_table_release(struct reftable_merged_table *mt)
+{
+	FREE_AND_NULL(mt->stack);
+	mt->stack_len = 0;
+}
+
+void reftable_merged_table_free(struct reftable_merged_table *mt)
+{
+	if (!mt) {
+		return;
+	}
+	merged_table_release(mt);
+	reftable_free(mt);
+}
+
+uint64_t
+reftable_merged_table_max_update_index(struct reftable_merged_table *mt)
+{
+	return mt->max;
+}
+
+uint64_t
+reftable_merged_table_min_update_index(struct reftable_merged_table *mt)
+{
+	return mt->min;
+}
+
+static int reftable_table_seek_record(struct reftable_table *tab,
+				      struct reftable_iterator *it,
+				      struct reftable_record *rec)
+{
+	return tab->ops->seek_record(tab->table_arg, it, rec);
+}
+
+static int merged_table_seek_record(struct reftable_merged_table *mt,
+				    struct reftable_iterator *it,
+				    struct reftable_record *rec)
+{
+	struct reftable_iterator *iters = reftable_calloc(
+		sizeof(struct reftable_iterator) * mt->stack_len);
+	struct merged_iter merged = {
+		.stack = iters,
+		.typ = reftable_record_type(rec),
+		.hash_id = mt->hash_id,
+		.suppress_deletions = mt->suppress_deletions,
+	};
+	int n = 0;
+	int err = 0;
+	int i = 0;
+	for (i = 0; i < mt->stack_len && err == 0; i++) {
+		int e = reftable_table_seek_record(&mt->stack[i], &iters[n],
+						   rec);
+		if (e < 0) {
+			err = e;
+		}
+		if (e == 0) {
+			n++;
+		}
+	}
+	if (err < 0) {
+		int i = 0;
+		for (i = 0; i < n; i++) {
+			reftable_iterator_destroy(&iters[i]);
+		}
+		reftable_free(iters);
+		return err;
+	}
+
+	merged.stack_len = n;
+	err = merged_iter_init(&merged);
+	if (err < 0) {
+		merged_iter_close(&merged);
+		return err;
+	} else {
+		struct merged_iter *p =
+			reftable_malloc(sizeof(struct merged_iter));
+		*p = merged;
+		iterator_from_merged_iter(it, p);
+	}
+	return 0;
+}
+
+int reftable_merged_table_seek_ref(struct reftable_merged_table *mt,
+				   struct reftable_iterator *it,
+				   const char *name)
+{
+	struct reftable_ref_record ref = {
+		.refname = (char *)name,
+	};
+	struct reftable_record rec = { NULL };
+	reftable_record_from_ref(&rec, &ref);
+	return merged_table_seek_record(mt, it, &rec);
+}
+
+int reftable_merged_table_seek_log_at(struct reftable_merged_table *mt,
+				      struct reftable_iterator *it,
+				      const char *name, uint64_t update_index)
+{
+	struct reftable_log_record log = {
+		.refname = (char *)name,
+		.update_index = update_index,
+	};
+	struct reftable_record rec = { NULL };
+	reftable_record_from_log(&rec, &log);
+	return merged_table_seek_record(mt, it, &rec);
+}
+
+int reftable_merged_table_seek_log(struct reftable_merged_table *mt,
+				   struct reftable_iterator *it,
+				   const char *name)
+{
+	uint64_t max = ~((uint64_t)0);
+	return reftable_merged_table_seek_log_at(mt, it, name, max);
+}
+
+uint32_t reftable_merged_table_hash_id(struct reftable_merged_table *mt)
+{
+	return mt->hash_id;
+}
+
+static int reftable_merged_table_seek_void(void *tab,
+					   struct reftable_iterator *it,
+					   struct reftable_record *rec)
+{
+	return merged_table_seek_record(tab, it, rec);
+}
+
+static uint32_t reftable_merged_table_hash_id_void(void *tab)
+{
+	return reftable_merged_table_hash_id(tab);
+}
+
+static uint64_t reftable_merged_table_min_update_index_void(void *tab)
+{
+	return reftable_merged_table_min_update_index(tab);
+}
+
+static uint64_t reftable_merged_table_max_update_index_void(void *tab)
+{
+	return reftable_merged_table_max_update_index(tab);
+}
+
+static struct reftable_table_vtable merged_table_vtable = {
+	.seek_record = reftable_merged_table_seek_void,
+	.hash_id = reftable_merged_table_hash_id_void,
+	.min_update_index = reftable_merged_table_min_update_index_void,
+	.max_update_index = reftable_merged_table_max_update_index_void,
+};
+
+void reftable_table_from_merged_table(struct reftable_table *tab,
+				      struct reftable_merged_table *merged)
+{
+	assert(!tab->ops);
+	tab->ops = &merged_table_vtable;
+	tab->table_arg = merged;
+}
diff --git a/reftable/merged.h b/reftable/merged.h
new file mode 100644
index 000000000000..8c4d4d58d77a
--- /dev/null
+++ b/reftable/merged.h
@@ -0,0 +1,35 @@
+/*
+Copyright 2020 Google LLC
+
+Use of this source code is governed by a BSD-style
+license that can be found in the LICENSE file or at
+https://developers.google.com/open-source/licenses/bsd
+*/
+
+#ifndef MERGED_H
+#define MERGED_H
+
+#include "pq.h"
+
+struct reftable_merged_table {
+	struct reftable_table *stack;
+	size_t stack_len;
+	uint32_t hash_id;
+	int suppress_deletions;
+
+	uint64_t min;
+	uint64_t max;
+};
+
+struct merged_iter {
+	struct reftable_iterator *stack;
+	uint32_t hash_id;
+	size_t stack_len;
+	uint8_t typ;
+	int suppress_deletions;
+	struct merged_iter_pqueue pq;
+};
+
+void merged_table_release(struct reftable_merged_table *mt);
+
+#endif
diff --git a/reftable/merged_test.c b/reftable/merged_test.c
new file mode 100644
index 000000000000..a53251c24f8d
--- /dev/null
+++ b/reftable/merged_test.c
@@ -0,0 +1,292 @@
+/*
+Copyright 2020 Google LLC
+
+Use of this source code is governed by a BSD-style
+license that can be found in the LICENSE file or at
+https://developers.google.com/open-source/licenses/bsd
+*/
+
+#include "merged.h"
+
+#include "system.h"
+
+#include "basics.h"
+#include "blocksource.h"
+#include "constants.h"
+#include "reader.h"
+#include "record.h"
+#include "test_framework.h"
+#include "reftable-merged.h"
+#include "reftable-tests.h"
+#include "reftable-generic.h"
+#include "reftable-writer.h"
+
+static void write_test_table(struct strbuf *buf,
+			     struct reftable_ref_record refs[], int n)
+{
+	int min = 0xffffffff;
+	int max = 0;
+	int i = 0;
+	int err;
+
+	struct reftable_write_options opts = {
+		.block_size = 256,
+	};
+	struct reftable_writer *w = NULL;
+	for (i = 0; i < n; i++) {
+		uint64_t ui = refs[i].update_index;
+		if (ui > max) {
+			max = ui;
+		}
+		if (ui < min) {
+			min = ui;
+		}
+	}
+
+	w = reftable_new_writer(&strbuf_add_void, buf, &opts);
+	reftable_writer_set_limits(w, min, max);
+
+	for (i = 0; i < n; i++) {
+		uint64_t before = refs[i].update_index;
+		int n = reftable_writer_add_ref(w, &refs[i]);
+		assert(n == 0);
+		assert(before == refs[i].update_index);
+	}
+
+	err = reftable_writer_close(w);
+	EXPECT_ERR(err);
+
+	reftable_writer_free(w);
+}
+
+static struct reftable_merged_table *
+merged_table_from_records(struct reftable_ref_record **refs,
+			  struct reftable_block_source **source,
+			  struct reftable_reader ***readers, int *sizes,
+			  struct strbuf *buf, int n)
+{
+	int i = 0;
+	struct reftable_merged_table *mt = NULL;
+	int err;
+	struct reftable_table *tabs =
+		reftable_calloc(n * sizeof(struct reftable_table));
+	*readers = reftable_calloc(n * sizeof(struct reftable_reader *));
+	*source = reftable_calloc(n * sizeof(**source));
+	for (i = 0; i < n; i++) {
+		write_test_table(&buf[i], refs[i], sizes[i]);
+		block_source_from_strbuf(&(*source)[i], &buf[i]);
+
+		err = reftable_new_reader(&(*readers)[i], &(*source)[i],
+					  "name");
+		EXPECT_ERR(err);
+		reftable_table_from_reader(&tabs[i], (*readers)[i]);
+	}
+
+	err = reftable_new_merged_table(&mt, tabs, n, GIT_SHA1_HASH_ID);
+	EXPECT_ERR(err);
+	return mt;
+}
+
+static void readers_destroy(struct reftable_reader **readers, size_t n)
+{
+	int i = 0;
+	for (; i < n; i++)
+		reftable_reader_free(readers[i]);
+	reftable_free(readers);
+}
+
+static void test_merged_between(void)
+{
+	uint8_t hash1[GIT_SHA1_RAWSZ] = { 1, 2, 3, 0 };
+
+	struct reftable_ref_record r1[] = { {
+		.refname = "b",
+		.update_index = 1,
+		.value_type = REFTABLE_REF_VAL1,
+		.value.val1 = hash1,
+	} };
+	struct reftable_ref_record r2[] = { {
+		.refname = "a",
+		.update_index = 2,
+		.value_type = REFTABLE_REF_DELETION,
+	} };
+
+	struct reftable_ref_record *refs[] = { r1, r2 };
+	int sizes[] = { 1, 1 };
+	struct strbuf bufs[2] = { STRBUF_INIT, STRBUF_INIT };
+	struct reftable_block_source *bs = NULL;
+	struct reftable_reader **readers = NULL;
+	struct reftable_merged_table *mt =
+		merged_table_from_records(refs, &bs, &readers, sizes, bufs, 2);
+	int i;
+	struct reftable_ref_record ref = { NULL };
+	struct reftable_iterator it = { NULL };
+	int err = reftable_merged_table_seek_ref(mt, &it, "a");
+	EXPECT_ERR(err);
+
+	err = reftable_iterator_next_ref(&it, &ref);
+	EXPECT_ERR(err);
+	EXPECT(ref.update_index == 2);
+	reftable_ref_record_release(&ref);
+	reftable_iterator_destroy(&it);
+	readers_destroy(readers, 2);
+	reftable_merged_table_free(mt);
+	for (i = 0; i < ARRAY_SIZE(bufs); i++) {
+		strbuf_release(&bufs[i]);
+	}
+	reftable_free(bs);
+}
+
+static void test_merged(void)
+{
+	uint8_t hash1[GIT_SHA1_RAWSZ] = { 1 };
+	uint8_t hash2[GIT_SHA1_RAWSZ] = { 2 };
+	struct reftable_ref_record r1[] = {
+		{
+			.refname = "a",
+			.update_index = 1,
+			.value_type = REFTABLE_REF_VAL1,
+			.value.val1 = hash1,
+		},
+		{
+			.refname = "b",
+			.update_index = 1,
+			.value_type = REFTABLE_REF_VAL1,
+			.value.val1 = hash1,
+		},
+		{
+			.refname = "c",
+			.update_index = 1,
+			.value_type = REFTABLE_REF_VAL1,
+			.value.val1 = hash1,
+		}
+	};
+	struct reftable_ref_record r2[] = { {
+		.refname = "a",
+		.update_index = 2,
+		.value_type = REFTABLE_REF_DELETION,
+	} };
+	struct reftable_ref_record r3[] = {
+		{
+			.refname = "c",
+			.update_index = 3,
+			.value_type = REFTABLE_REF_VAL1,
+			.value.val1 = hash2,
+		},
+		{
+			.refname = "d",
+			.update_index = 3,
+			.value_type = REFTABLE_REF_VAL1,
+			.value.val1 = hash1,
+		},
+	};
+
+	struct reftable_ref_record want[] = {
+		r2[0],
+		r1[1],
+		r3[0],
+		r3[1],
+	};
+
+	struct reftable_ref_record *refs[] = { r1, r2, r3 };
+	int sizes[3] = { 3, 1, 2 };
+	struct strbuf bufs[3] = { STRBUF_INIT, STRBUF_INIT, STRBUF_INIT };
+	struct reftable_block_source *bs = NULL;
+	struct reftable_reader **readers = NULL;
+	struct reftable_merged_table *mt =
+		merged_table_from_records(refs, &bs, &readers, sizes, bufs, 3);
+
+	struct reftable_iterator it = { NULL };
+	int err = reftable_merged_table_seek_ref(mt, &it, "a");
+	struct reftable_ref_record *out = NULL;
+	size_t len = 0;
+	size_t cap = 0;
+	int i = 0;
+
+	EXPECT_ERR(err);
+	while (len < 100) { /* cap loops/recursion. */
+		struct reftable_ref_record ref = { NULL };
+		int err = reftable_iterator_next_ref(&it, &ref);
+		if (err > 0) {
+			break;
+		}
+		if (len == cap) {
+			cap = 2 * cap + 1;
+			out = reftable_realloc(
+				out, sizeof(struct reftable_ref_record) * cap);
+		}
+		out[len++] = ref;
+	}
+	reftable_iterator_destroy(&it);
+
+	assert(ARRAY_SIZE(want) == len);
+	for (i = 0; i < len; i++) {
+		assert(reftable_ref_record_equal(&want[i], &out[i],
+						 GIT_SHA1_RAWSZ));
+	}
+	for (i = 0; i < len; i++) {
+		reftable_ref_record_release(&out[i]);
+	}
+	reftable_free(out);
+
+	for (i = 0; i < 3; i++) {
+		strbuf_release(&bufs[i]);
+	}
+	readers_destroy(readers, 3);
+	reftable_merged_table_free(mt);
+	reftable_free(bs);
+}
+
+static void test_default_write_opts(void)
+{
+	struct reftable_write_options opts = { 0 };
+	struct strbuf buf = STRBUF_INIT;
+	struct reftable_writer *w =
+		reftable_new_writer(&strbuf_add_void, &buf, &opts);
+
+	struct reftable_ref_record rec = {
+		.refname = "master",
+		.update_index = 1,
+	};
+	int err;
+	struct reftable_block_source source = { NULL };
+	struct reftable_table *tab = reftable_calloc(sizeof(*tab) * 1);
+	uint32_t hash_id;
+	struct reftable_reader *rd = NULL;
+	struct reftable_merged_table *merged = NULL;
+
+	reftable_writer_set_limits(w, 1, 1);
+
+	err = reftable_writer_add_ref(w, &rec);
+	EXPECT_ERR(err);
+
+	err = reftable_writer_close(w);
+	EXPECT_ERR(err);
+	reftable_writer_free(w);
+
+	block_source_from_strbuf(&source, &buf);
+
+	err = reftable_new_reader(&rd, &source, "filename");
+	EXPECT_ERR(err);
+
+	hash_id = reftable_reader_hash_id(rd);
+	assert(hash_id == GIT_SHA1_HASH_ID);
+
+	reftable_table_from_reader(&tab[0], rd);
+	err = reftable_new_merged_table(&merged, tab, 1, GIT_SHA1_HASH_ID);
+	EXPECT_ERR(err);
+
+	reftable_reader_free(rd);
+	reftable_merged_table_free(merged);
+	strbuf_release(&buf);
+}
+
+/* XXX test refs_for(oid) */
+
+int merged_test_main(int argc, const char *argv[])
+{
+	RUN_TEST(test_merged_between);
+	RUN_TEST(test_merged);
+	RUN_TEST(test_default_write_opts);
+	return 0;
+}
diff --git a/reftable/reftable-merged.h b/reftable/reftable-merged.h
new file mode 100644
index 000000000000..1a6d16915ab4
--- /dev/null
+++ b/reftable/reftable-merged.h
@@ -0,0 +1,72 @@
+/*
+Copyright 2020 Google LLC
+
+Use of this source code is governed by a BSD-style
+license that can be found in the LICENSE file or at
+https://developers.google.com/open-source/licenses/bsd
+*/
+
+#ifndef REFTABLE_MERGED_H
+#define REFTABLE_MERGED_H
+
+#include "reftable-iterator.h"
+
+/*
+ * Merged tables
+ *
+ * A ref database kept in a sequence of table files. The merged_table presents a
+ * unified view to reading (seeking, iterating) a sequence of immutable tables.
+ *
+ * The merged tables are on purpose kept disconnected from their actual storage
+ * (eg. files on disk), because it is useful to merge tables aren't files. For
+ * example, the per-workspace and global ref namespace can be implemented as a
+ * merged table of two stacks of file-backed reftables.
+ */
+
+/* A merged table is implements seeking/iterating over a stack of tables. */
+struct reftable_merged_table;
+
+/* A generic reftable; see below. */
+struct reftable_table;
+
+/* reftable_new_merged_table creates a new merged table. It takes ownership of
+   the stack array.
+*/
+int reftable_new_merged_table(struct reftable_merged_table **dest,
+			      struct reftable_table *stack, int n,
+			      uint32_t hash_id);
+
+/* returns an iterator positioned just before 'name' */
+int reftable_merged_table_seek_ref(struct reftable_merged_table *mt,
+				   struct reftable_iterator *it,
+				   const char *name);
+
+/* returns an iterator for log entry, at given update_index */
+int reftable_merged_table_seek_log_at(struct reftable_merged_table *mt,
+				      struct reftable_iterator *it,
+				      const char *name, uint64_t update_index);
+
+/* like reftable_merged_table_seek_log_at but look for the newest entry. */
+int reftable_merged_table_seek_log(struct reftable_merged_table *mt,
+				   struct reftable_iterator *it,
+				   const char *name);
+
+/* returns the max update_index covered by this merged table. */
+uint64_t
+reftable_merged_table_max_update_index(struct reftable_merged_table *mt);
+
+/* returns the min update_index covered by this merged table. */
+uint64_t
+reftable_merged_table_min_update_index(struct reftable_merged_table *mt);
+
+/* releases memory for the merged_table */
+void reftable_merged_table_free(struct reftable_merged_table *m);
+
+/* return the hash ID of the merged table. */
+uint32_t reftable_merged_table_hash_id(struct reftable_merged_table *m);
+
+/* create a generic table from reftable_merged_table */
+void reftable_table_from_merged_table(struct reftable_table *tab,
+				      struct reftable_merged_table *table);
+
+#endif
diff --git a/t/helper/test-reftable.c b/t/helper/test-reftable.c
index 0b5a1701df15..8087f2da4e6a 100644
--- a/t/helper/test-reftable.c
+++ b/t/helper/test-reftable.c
@@ -5,6 +5,7 @@ int cmd__reftable(int argc, const char **argv)
 {
 	basics_test_main(argc, argv);
 	block_test_main(argc, argv);
+	merged_test_main(argc, argv);
 	pq_test_main(argc, argv);
 	record_test_main(argc, argv);
 	readwrite_test_main(argc, argv);
-- 
gitgitgadget


  parent reply index

Thread overview: 251+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-16 19:10 [PATCH 00/13] reftable library Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 01/13] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 02/13] reftable: define the public API Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 03/13] vcxproj: adjust for the reftable changes Johannes Schindelin via GitGitGadget
2020-09-16 19:10 ` [PATCH 04/13] reftable: add a barebones unittest framework Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 05/13] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 06/13] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2020-09-20  1:00   ` Junio C Hamano
2020-09-21 13:13     ` Han-Wen Nienhuys
2020-09-24  7:21       ` Jeff King
2020-09-24  7:31         ` Jeff King
2020-09-24 17:22           ` Junio C Hamano
2020-09-16 19:10 ` [PATCH 07/13] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 08/13] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 09/13] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 10/13] reftable: read " Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 11/13] reftable: file level tests Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 12/13] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2020-09-16 19:10 ` [PATCH 13/13] reftable: "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:10 ` [PATCH v2 00/13] reftable library Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:10   ` [PATCH v2 01/13] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2020-10-02  3:18     ` Jonathan Nieder
2020-10-01 16:10   ` [PATCH v2 02/13] reftable: define the public API Han-Wen Nienhuys via GitGitGadget
2020-10-02  3:58     ` Jonathan Nieder
2020-10-09 21:13       ` Emily Shaffer
2020-10-10 17:03         ` Han-Wen Nienhuys
2020-11-30 14:44         ` Han-Wen Nienhuys
2020-10-10 13:43       ` Han-Wen Nienhuys
2020-10-12 16:57         ` Jonathan Nieder
2020-11-30 14:55           ` Han-Wen Nienhuys
2020-10-08  1:41     ` Jonathan Tan
2020-10-10 16:57       ` Han-Wen Nienhuys
2020-10-01 16:10   ` [PATCH v2 03/13] vcxproj: adjust for the reftable changes Johannes Schindelin via GitGitGadget
2020-10-02  4:02     ` Jonathan Nieder
2020-10-02 11:43       ` Johannes Schindelin
2020-10-01 16:10   ` [PATCH v2 04/13] reftable: add a barebones unittest framework Han-Wen Nienhuys via GitGitGadget
2020-10-02  4:05     ` Jonathan Nieder
2020-10-08  1:45     ` Jonathan Tan
2020-10-08 22:31       ` Josh Steadmon
2020-10-01 16:10   ` [PATCH v2 05/13] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2020-10-02  4:12     ` Jonathan Nieder
2020-10-10 17:32       ` Han-Wen Nienhuys
2020-10-12 15:25         ` Jonathan Nieder
2020-10-12 17:05           ` Patrick Steinhardt
2020-10-12 17:45             ` Jonathan Nieder
2020-10-13 12:12             ` Johannes Schindelin
2020-10-13 15:47               ` Junio C Hamano
2020-10-15 11:46                 ` Johannes Schindelin
2020-10-15 16:23                   ` Junio C Hamano
2020-10-15 19:39                     ` Johannes Schindelin
2020-10-16  9:15                     ` Patrick Steinhardt
2020-10-02 14:01     ` Johannes Schindelin
2020-10-02 20:47       ` Junio C Hamano
2020-10-03  8:07         ` Johannes Schindelin
2020-10-08  1:48     ` Jonathan Tan
2020-10-10 17:28       ` Han-Wen Nienhuys
2020-10-11 10:52         ` Johannes Schindelin
2020-10-12 15:19           ` Jonathan Nieder
2020-10-12 18:44             ` Johannes Schindelin
2020-10-12 19:41               ` Jonathan Nieder
2020-10-12 20:27                 ` Johannes Schindelin
2020-10-12 16:42           ` Junio C Hamano
2020-10-12 19:01             ` Johannes Schindelin
2020-10-23  9:13         ` Ævar Arnfjörð Bjarmason
2020-10-23 17:36           ` Junio C Hamano
2020-10-01 16:10   ` [PATCH v2 06/13] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2020-10-01 19:23     ` Junio C Hamano
2020-10-01 19:59       ` Ramsay Jones
2020-10-01 16:10   ` [PATCH v2 07/13] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:10   ` [PATCH v2 08/13] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:10   ` [PATCH v2 09/13] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:11   ` [PATCH v2 10/13] reftable: read " Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:11   ` [PATCH v2 11/13] reftable: file level tests Han-Wen Nienhuys via GitGitGadget
2020-10-01 16:11   ` [PATCH v2 12/13] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2020-10-02 13:57     ` Johannes Schindelin
2020-10-02 17:08       ` Junio C Hamano
2020-10-04 18:39         ` Johannes Schindelin
2020-10-01 16:11   ` [PATCH v2 13/13] reftable: "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42   ` [PATCH v3 00/16] reftable library Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 01/16] move sleep_millisec to git-compat-util.h Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 02/16] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2020-11-27 10:22       ` Ævar Arnfjörð Bjarmason
2020-11-26 19:42     ` [PATCH v3 03/16] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2020-11-27 10:23       ` Ævar Arnfjörð Bjarmason
2020-11-30 11:26         ` Han-Wen Nienhuys
2020-11-30 20:25           ` Han-Wen Nienhuys
2020-11-30 21:21             ` Felipe Contreras
2020-12-01  9:51               ` Han-Wen Nienhuys
2020-12-01 10:38                 ` Felipe Contreras
2020-12-01 11:45                   ` Ævar Arnfjörð Bjarmason
2020-12-01 13:34                     ` Han-Wen Nienhuys
2020-12-01 23:13                       ` Felipe Contreras
2020-12-01 23:03                     ` Felipe Contreras
2020-11-26 19:42     ` [PATCH v3 04/16] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2020-11-27  9:13       ` Felipe Contreras
2020-11-27 10:25       ` Ævar Arnfjörð Bjarmason
2020-11-30 11:27         ` Han-Wen Nienhuys
2020-11-26 19:42     ` [PATCH v3 05/16] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2020-11-27 10:18       ` Felipe Contreras
2020-11-27 10:33       ` Ævar Arnfjörð Bjarmason
2020-11-26 19:42     ` [PATCH v3 06/16] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 07/16] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 08/16] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 09/16] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 10/16] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 11/16] reftable: read " Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 12/16] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 13/16] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 14/16] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2020-11-27 10:59       ` Ævar Arnfjörð Bjarmason
2020-11-26 19:42     ` [PATCH v3 15/16] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2020-11-26 19:42     ` [PATCH v3 16/16] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00     ` [PATCH v4 00/15] reftable library Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 01/15] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 02/15] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 03/15] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 04/15] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 05/15] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 06/15] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 07/15] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 08/15] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 09/15] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 10/15] reftable: read " Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 11/15] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 12/15] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 13/15] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-01-21 15:55         ` Ævar Arnfjörð Bjarmason
2021-01-21 16:14           ` Han-Wen Nienhuys
2021-01-21 16:21             ` Han-Wen Nienhuys
2021-01-26 13:44               ` Ævar Arnfjörð Bjarmason
2021-04-23 10:22           ` Han-Wen Nienhuys
2021-04-26 13:23             ` Ævar Arnfjörð Bjarmason
2021-04-26 16:17               ` Han-Wen Nienhuys
2021-04-28 16:32                 ` Ævar Arnfjörð Bjarmason
2021-04-28 17:40                   ` Han-Wen Nienhuys
2021-02-22  0:41         ` [PATCH] refs: introduce API function to write invalid null ref Stefan Beller
2021-02-22  1:20           ` Eric Sunshine
2021-02-22  3:09             ` Eric Sunshine
2021-02-22 18:38           ` Han-Wen Nienhuys
2020-12-09 14:00       ` [PATCH v4 14/15] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2020-12-09 14:00       ` [PATCH v4 15/15] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19       ` [PATCH v5 00/15] reftable library Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 01/15] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 02/15] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 03/15] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 04/15] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 05/15] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 06/15] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 07/15] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 08/15] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 09/15] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 10/15] reftable: read " Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 11/15] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 12/15] reftable: rest of library Han-Wen Nienhuys via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 13/15] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-03-23 11:40           ` Derrick Stolee
2021-03-23 12:20             ` Ævar Arnfjörð Bjarmason
2021-03-23 20:14               ` Junio C Hamano
2021-03-23 20:12             ` Junio C Hamano
2021-03-12 20:19         ` [PATCH v5 14/15] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-03-12 20:19         ` [PATCH v5 15/15] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25         ` [PATCH v6 00/20] reftable library Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 01/20] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 02/20] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-04-13  7:28             ` Ævar Arnfjörð Bjarmason
2021-04-13 10:50               ` Han-Wen Nienhuys
2021-04-13 13:41                 ` Ævar Arnfjörð Bjarmason
2021-04-12 19:25           ` [PATCH v6 03/20] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 04/20] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-04-13  8:02             ` Ævar Arnfjörð Bjarmason
2021-04-13 10:58               ` Han-Wen Nienhuys
2021-04-13 12:56                 ` Ævar Arnfjörð Bjarmason
2021-04-13 13:14             ` Ævar Arnfjörð Bjarmason
2021-04-15 15:00               ` Han-Wen Nienhuys
2021-04-12 19:25           ` [PATCH v6 05/20] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 06/20] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 07/20] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-04-12 21:40             ` Junio C Hamano
2021-04-13  8:19             ` Ævar Arnfjörð Bjarmason
2021-04-15  8:57               ` Han-Wen Nienhuys
2021-04-12 19:25           ` [PATCH v6 08/20] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 09/20] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 10/20] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 11/20] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 12/20] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 13/20] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 14/20] reftable: add merged table view Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 15/20] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 16/20] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 17/20] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 18/20] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-04-13  7:18             ` Ævar Arnfjörð Bjarmason
2021-04-14 16:44               ` Han-Wen Nienhuys
2021-04-16 14:55                 ` Ævar Arnfjörð Bjarmason
2021-04-16 18:47                 ` Junio C Hamano
2021-04-12 19:25           ` [PATCH v6 19/20] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-04-12 19:25           ` [PATCH v6 20/20] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37           ` [PATCH v7 00/28] reftable library Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 01/28] refs: ref_iterator_peel returns boolean, rather than peel_status Han-Wen Nienhuys via GitGitGadget
2021-04-20 18:47               ` Junio C Hamano
2021-04-21 10:15                 ` Han-Wen Nienhuys
2021-04-21 23:28                   ` Junio C Hamano
2021-04-19 11:37             ` [PATCH v7 02/28] refs: document reflog_expire_fn's flag argument Han-Wen Nienhuys via GitGitGadget
2021-04-20 19:34               ` Junio C Hamano
2021-04-27 15:21                 ` Han-Wen Nienhuys
2021-04-19 11:37             ` [PATCH v7 03/28] refs/debug: trace into reflog expiry too Han-Wen Nienhuys via GitGitGadget
2021-04-20 19:41               ` Junio C Hamano
2021-04-22 17:27                 ` Han-Wen Nienhuys
2021-04-19 11:37             ` [PATCH v7 04/28] hash.h: provide constants for the hash IDs Han-Wen Nienhuys via GitGitGadget
2021-04-20 19:49               ` Junio C Hamano
2021-04-21  1:04                 ` brian m. carlson
2021-04-21  9:43                   ` Han-Wen Nienhuys
2021-07-22  8:31                     ` Han-Wen Nienhuys
2021-04-19 11:37             ` [PATCH v7 05/28] init-db: set the_repository->hash_algo early on Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 06/28] reftable: add LICENSE Han-Wen Nienhuys via GitGitGadget
2021-04-21  7:48               ` Ævar Arnfjörð Bjarmason
2021-04-21  9:15                 ` Han-Wen Nienhuys
2021-04-19 11:37             ` [PATCH v7 07/28] reftable: add error related functionality Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 08/28] reftable: utility functions Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 09/28] reftable: add blocksource, an abstraction for random access reads Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 10/28] reftable: (de)serialization for the polymorphic record type Han-Wen Nienhuys via GitGitGadget
2021-05-04 17:23               ` Andrzej Hunt
2021-05-18 13:12                 ` Han-Wen Nienhuys
2021-04-19 11:37             ` [PATCH v7 11/28] Provide zlib's uncompress2 from compat/zlib-compat.c Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 12/28] reftable: reading/writing blocks Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 13/28] reftable: a generic binary tree implementation Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 14/28] reftable: write reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 15/28] reftable: generic interface to tables Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 16/28] reftable: read reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 17/28] reftable: reftable file level tests Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 18/28] reftable: add a heap-based priority queue for reftable records Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` Han-Wen Nienhuys via GitGitGadget [this message]
2021-04-19 11:37             ` [PATCH v7 20/28] reftable: implement refname validation Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 21/28] reftable: implement stack, a mutable database of reftable files Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 22/28] reftable: add dump utility Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 23/28] Reftable support for git-core Han-Wen Nienhuys via GitGitGadget
2021-04-20 22:44               ` Junio C Hamano
2021-04-21 10:19                 ` Han-Wen Nienhuys
2021-04-21 23:22                   ` Junio C Hamano
2021-05-04 17:24               ` Andrzej Hunt
2021-05-18 13:18                 ` Han-Wen Nienhuys
2021-05-18 13:30                   ` Han-Wen Nienhuys
2021-04-19 11:37             ` [PATCH v7 24/28] git-prompt: prepare for reftable refs backend SZEDER Gábor via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 25/28] Add "test-tool dump-reftable" command Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 26/28] t1301: document what needs to be done for REFTABLE Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 27/28] t1401,t2011: parameterize HEAD.lock " Han-Wen Nienhuys via GitGitGadget
2021-04-19 11:37             ` [PATCH v7 28/28] t1404: annotate test cases with REFFILES Han-Wen Nienhuys via GitGitGadget
2021-04-21  7:45             ` [PATCH v7 00/28] reftable library Ævar Arnfjörð Bjarmason
2021-04-21  9:52               ` Han-Wen Nienhuys
2021-04-21 11:21                 ` Ævar Arnfjörð Bjarmason
2021-04-26 17:59                   ` Han-Wen Nienhuys

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