This commit provides basic utility classes for the reftable library.
Signed-off-by: Han-Wen Nienhuys <hanwen@google.com>
Helped-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
TEST_BUILTINS_OBJS += test-read-graph.o
TEST_BUILTINS_OBJS += test-read-midx.o
TEST_BUILTINS_OBJS += test-ref-store.o
+TEST_BUILTINS_OBJS += test-reftable.o
TEST_BUILTINS_OBJS += test-regex.o
TEST_BUILTINS_OBJS += test-repository.o
TEST_BUILTINS_OBJS += test-revision-walking.o
LIB_FILE = libgit.a
XDIFF_LIB = xdiff/lib.a
+REFTABLE_LIB = reftable/libreftable.a
+REFTABLE_TEST_LIB = reftable/libreftable_test.a
GENERATED_H += command-list.h
GENERATED_H += config-list.h
THIRD_PARTY_SOURCES += sha1collisiondetection/%
THIRD_PARTY_SOURCES += sha1dc/%
-GITLIBS = common-main.o $(LIB_FILE) $(XDIFF_LIB)
+GITLIBS = common-main.o $(LIB_FILE) $(XDIFF_LIB) $(REFTABLE_LIB)
EXTLIBS =
GIT_USER_AGENT = git/$(GIT_VERSION)
.PHONY: xdiff-objs
xdiff-objs: $(XDIFF_OBJS)
+REFTABLE_OBJS += reftable/basics.o
+REFTABLE_OBJS += reftable/error.o
+REFTABLE_OBJS += reftable/publicbasics.o
+
+REFTABLE_TEST_OBJS += reftable/test_framework.o
+REFTABLE_TEST_OBJS += reftable/basics_test.o
+
TEST_OBJS := $(patsubst %$X,%.o,$(TEST_PROGRAMS)) $(patsubst %,t/helper/%,$(TEST_BUILTINS_OBJS))
+
.PHONY: test-objs
test-objs: $(TEST_OBJS)
OBJECTS += $(TEST_OBJS)
OBJECTS += $(XDIFF_OBJS)
OBJECTS += $(FUZZ_OBJS)
+OBJECTS += $(REFTABLE_OBJS) $(REFTABLE_TEST_OBJS)
+
ifndef NO_CURL
OBJECTS += http.o http-walker.o remote-curl.o
endif
$(XDIFF_LIB): $(XDIFF_OBJS)
$(QUIET_AR)$(AR) $(ARFLAGS) $@ $^
+$(REFTABLE_LIB): $(REFTABLE_OBJS)
+ $(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^
+
+$(REFTABLE_TEST_LIB): $(REFTABLE_TEST_OBJS)
+ $(QUIET_AR)$(RM) $@ && $(AR) $(ARFLAGS) $@ $^
+
export DEFAULT_EDITOR DEFAULT_PAGER
Documentation/GIT-EXCLUDED-PROGRAMS: FORCE
t/helper/test-tool$X: $(patsubst %,t/helper/%,$(TEST_BUILTINS_OBJS))
-t/helper/test-%$X: t/helper/test-%.o GIT-LDFLAGS $(GITLIBS)
+t/helper/test-%$X: t/helper/test-%.o GIT-LDFLAGS $(GITLIBS) $(REFTABLE_TEST_LIB)
$(QUIET_LINK)$(CC) $(ALL_CFLAGS) -o $@ $(ALL_LDFLAGS) $(filter %.o,$^) $(filter %.a,$^) $(LIBS)
check-sha1:: t/helper/test-tool$X
clean: profile-clean coverage-clean cocciclean
$(RM) *.res
$(RM) $(OBJECTS)
- $(RM) $(LIB_FILE) $(XDIFF_LIB)
+ $(RM) $(LIB_FILE) $(XDIFF_LIB) $(REFTABLE_LIB) $(REFTABLE_TEST_LIB)
$(RM) $(ALL_PROGRAMS) $(SCRIPT_LIB) $(BUILT_INS) git$X
$(RM) $(TEST_PROGRAMS)
$(RM) $(FUZZ_PROGRAMS)
list(TRANSFORM libxdiff_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
add_library(xdiff STATIC ${libxdiff_SOURCES})
+#reftable
+parse_makefile_for_sources(reftable_SOURCES "REFTABLE_OBJS")
+
+list(TRANSFORM reftable_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
+add_library(reftable STATIC ${reftable_SOURCES})
+
if(WIN32)
if(NOT MSVC)#use windres when compiling with gcc and clang
add_custom_command(OUTPUT ${CMAKE_BINARY_DIR}/git.res
#link all required libraries to common-main
add_library(common-main OBJECT ${CMAKE_SOURCE_DIR}/common-main.c)
-target_link_libraries(common-main libgit xdiff ${ZLIB_LIBRARIES})
+target_link_libraries(common-main libgit xdiff reftable ${ZLIB_LIBRARIES})
if(Intl_FOUND)
target_link_libraries(common-main ${Intl_LIBRARIES})
endif()
add_executable(test-fake-ssh ${CMAKE_SOURCE_DIR}/t/helper/test-fake-ssh.c)
target_link_libraries(test-fake-ssh common-main)
+#reftable-tests
+parse_makefile_for_sources(test-reftable_SOURCES "REFTABLE_TEST_OBJS")
+list(TRANSFORM test-reftable_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/")
+
#test-tool
parse_makefile_for_sources(test-tool_SOURCES "TEST_BUILTINS_OBJS")
list(TRANSFORM test-tool_SOURCES PREPEND "${CMAKE_SOURCE_DIR}/t/helper/")
-add_executable(test-tool ${CMAKE_SOURCE_DIR}/t/helper/test-tool.c ${test-tool_SOURCES})
+add_executable(test-tool ${CMAKE_SOURCE_DIR}/t/helper/test-tool.c ${test-tool_SOURCES} ${test-reftable_SOURCES})
target_link_libraries(test-tool common-main)
set_target_properties(test-fake-ssh test-tool
my $libs_release = "\n ";
my $libs_debug = "\n ";
if (!$static_library) {
- $libs_release = join(";", sort(grep /^(?!libgit\.lib|xdiff\/lib\.lib|vcs-svn\/lib\.lib)/, @{$$build_structure{"$prefix${name}_LIBS"}}));
+ $libs_release = join(";", sort(grep /^(?!libgit\.lib|xdiff\/lib\.lib|vcs-svn\/lib\.lib|reftable\/libreftable\.lib)/, @{$$build_structure{"$prefix${name}_LIBS"}}));
$libs_debug = $libs_release;
$libs_debug =~ s/zlib\.lib/zlibd\.lib/g;
$libs_debug =~ s/libexpat\.lib/libexpatd\.lib/g;
EOM
if (!$static_library || $target =~ 'vcs-svn' || $target =~ 'xdiff') {
my $uuid_libgit = $$build_structure{"LIBS_libgit_GUID"};
+ my $uuid_libreftable = $$build_structure{"LIBS_reftable/libreftable_GUID"};
my $uuid_xdiff_lib = $$build_structure{"LIBS_xdiff/lib_GUID"};
print F << "EOM";
<ReferenceOutputAssembly>false</ReferenceOutputAssembly>
</ProjectReference>
EOM
+ if (!($name =~ /xdiff|libreftable/)) {
+ print F << "EOM";
+ <ProjectReference Include="$cdup\\reftable\\libreftable\\libreftable.vcxproj">
+ <Project>$uuid_libreftable</Project>
+ <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+ </ProjectReference>
+EOM
+ }
if (!($name =~ 'xdiff')) {
print F << "EOM";
<ProjectReference Include="$cdup\\xdiff\\lib\\xdiff_lib.vcxproj">
--- /dev/null
+/*
+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 "basics.h"
+
+void put_be24(uint8_t *out, uint32_t i)
+{
+ out[0] = (uint8_t)((i >> 16) & 0xff);
+ out[1] = (uint8_t)((i >> 8) & 0xff);
+ out[2] = (uint8_t)(i & 0xff);
+}
+
+uint32_t get_be24(uint8_t *in)
+{
+ return (uint32_t)(in[0]) << 16 | (uint32_t)(in[1]) << 8 |
+ (uint32_t)(in[2]);
+}
+
+void put_be16(uint8_t *out, uint16_t i)
+{
+ out[0] = (uint8_t)((i >> 8) & 0xff);
+ out[1] = (uint8_t)(i & 0xff);
+}
+
+int binsearch(size_t sz, int (*f)(size_t k, void *args), void *args)
+{
+ size_t lo = 0;
+ size_t hi = sz;
+
+ /* Invariants:
+ *
+ * (hi == sz) || f(hi) == true
+ * (lo == 0 && f(0) == true) || fi(lo) == false
+ */
+ while (hi - lo > 1) {
+ size_t mid = lo + (hi - lo) / 2;
+
+ if (f(mid, args))
+ hi = mid;
+ else
+ lo = mid;
+ }
+
+ if (lo)
+ return hi;
+
+ return f(0, args) ? 0 : 1;
+}
+
+void free_names(char **a)
+{
+ char **p;
+ if (!a) {
+ return;
+ }
+ for (p = a; *p; p++) {
+ reftable_free(*p);
+ }
+ reftable_free(a);
+}
+
+int names_length(char **names)
+{
+ char **p = names;
+ for (; *p; p++) {
+ /* empty */
+ }
+ return p - names;
+}
+
+void parse_names(char *buf, int size, char ***namesp)
+{
+ char **names = NULL;
+ size_t names_cap = 0;
+ size_t names_len = 0;
+
+ char *p = buf;
+ char *end = buf + size;
+ while (p < end) {
+ char *next = strchr(p, '\n');
+ if (next && next < end) {
+ *next = 0;
+ } else {
+ next = end;
+ }
+ if (p < next) {
+ if (names_len == names_cap) {
+ names_cap = 2 * names_cap + 1;
+ names = reftable_realloc(
+ names, names_cap * sizeof(*names));
+ }
+ names[names_len++] = xstrdup(p);
+ }
+ p = next + 1;
+ }
+
+ names = reftable_realloc(names, (names_len + 1) * sizeof(*names));
+ names[names_len] = NULL;
+ *namesp = names;
+}
+
+int names_equal(char **a, char **b)
+{
+ int i = 0;
+ for (; a[i] && b[i]; i++) {
+ if (strcmp(a[i], b[i])) {
+ return 0;
+ }
+ }
+
+ return a[i] == b[i];
+}
+
+int common_prefix_size(struct strbuf *a, struct strbuf *b)
+{
+ int p = 0;
+ for (; p < a->len && p < b->len; p++) {
+ if (a->buf[p] != b->buf[p])
+ break;
+ }
+
+ return p;
+}
--- /dev/null
+/*
+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 BASICS_H
+#define BASICS_H
+
+/*
+ * miscellaneous utilities that are not provided by Git.
+ */
+
+#include "system.h"
+
+/* Bigendian en/decoding of integers */
+
+void put_be24(uint8_t *out, uint32_t i);
+uint32_t get_be24(uint8_t *in);
+void put_be16(uint8_t *out, uint16_t i);
+
+/*
+ * find smallest index i in [0, sz) at which f(i) is true, assuming
+ * that f is ascending. Return sz if f(i) is false for all indices.
+ *
+ * Contrary to bsearch(3), this returns something useful if the argument is not
+ * found.
+ */
+int binsearch(size_t sz, int (*f)(size_t k, void *args), void *args);
+
+/*
+ * Frees a NULL terminated array of malloced strings. The array itself is also
+ * freed.
+ */
+void free_names(char **a);
+
+/* parse a newline separated list of names. `size` is the length of the buffer,
+ * without terminating '\0'. Empty names are discarded. */
+void parse_names(char *buf, int size, char ***namesp);
+
+/* compares two NULL-terminated arrays of strings. */
+int names_equal(char **a, char **b);
+
+/* returns the array size of a NULL-terminated array of strings. */
+int names_length(char **names);
+
+/* Allocation routines; they invoke the functions set through
+ * reftable_set_alloc() */
+void *reftable_malloc(size_t sz);
+void *reftable_realloc(void *p, size_t sz);
+void reftable_free(void *p);
+void *reftable_calloc(size_t sz);
+
+/* Find the longest shared prefix size of `a` and `b` */
+struct strbuf;
+int common_prefix_size(struct strbuf *a, struct strbuf *b);
+
+#endif
--- /dev/null
+/*
+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 "system.h"
+
+#include "basics.h"
+#include "test_framework.h"
+#include "reftable-tests.h"
+
+struct binsearch_args {
+ int key;
+ int *arr;
+};
+
+static int binsearch_func(size_t i, void *void_args)
+{
+ struct binsearch_args *args = void_args;
+
+ return args->key < args->arr[i];
+}
+
+static void test_binsearch(void)
+{
+ int arr[] = { 2, 4, 6, 8, 10 };
+ size_t sz = ARRAY_SIZE(arr);
+ struct binsearch_args args = {
+ .arr = arr,
+ };
+
+ int i = 0;
+ for (i = 1; i < 11; i++) {
+ int res;
+ args.key = i;
+ res = binsearch(sz, &binsearch_func, &args);
+
+ if (res < sz) {
+ EXPECT(args.key < arr[res]);
+ if (res > 0) {
+ EXPECT(args.key >= arr[res - 1]);
+ }
+ } else {
+ EXPECT(args.key == 10 || args.key == 11);
+ }
+ }
+}
+
+static void test_names_length(void)
+{
+ char *a[] = { "a", "b", NULL };
+ EXPECT(names_length(a) == 2);
+}
+
+static void test_parse_names_normal(void)
+{
+ char in[] = "a\nb\n";
+ char **out = NULL;
+ parse_names(in, strlen(in), &out);
+ EXPECT(!strcmp(out[0], "a"));
+ EXPECT(!strcmp(out[1], "b"));
+ EXPECT(!out[2]);
+ free_names(out);
+}
+
+static void test_parse_names_drop_empty(void)
+{
+ char in[] = "a\n\n";
+ char **out = NULL;
+ parse_names(in, strlen(in), &out);
+ EXPECT(!strcmp(out[0], "a"));
+ EXPECT(!out[1]);
+ free_names(out);
+}
+
+static void test_common_prefix(void)
+{
+ struct strbuf s1 = STRBUF_INIT;
+ struct strbuf s2 = STRBUF_INIT;
+ strbuf_addstr(&s1, "abcdef");
+ strbuf_addstr(&s2, "abc");
+ EXPECT(common_prefix_size(&s1, &s2) == 3);
+ strbuf_release(&s1);
+ strbuf_release(&s2);
+}
+
+int basics_test_main(int argc, const char *argv[])
+{
+ RUN_TEST(test_common_prefix);
+ RUN_TEST(test_parse_names_normal);
+ RUN_TEST(test_parse_names_drop_empty);
+ RUN_TEST(test_binsearch);
+ RUN_TEST(test_names_length);
+ return 0;
+}
--- /dev/null
+/*
+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 "reftable-malloc.h"
+
+#include "basics.h"
+#include "system.h"
+
+static void *(*reftable_malloc_ptr)(size_t sz);
+static void *(*reftable_realloc_ptr)(void *, size_t);
+static void (*reftable_free_ptr)(void *);
+
+void *reftable_malloc(size_t sz)
+{
+ if (reftable_malloc_ptr)
+ return (*reftable_malloc_ptr)(sz);
+ return malloc(sz);
+}
+
+void *reftable_realloc(void *p, size_t sz)
+{
+ if (reftable_realloc_ptr)
+ return (*reftable_realloc_ptr)(p, sz);
+ return realloc(p, sz);
+}
+
+void reftable_free(void *p)
+{
+ if (reftable_free_ptr)
+ reftable_free_ptr(p);
+ else
+ free(p);
+}
+
+void *reftable_calloc(size_t sz)
+{
+ void *p = reftable_malloc(sz);
+ memset(p, 0, sz);
+ return p;
+}
+
+void reftable_set_alloc(void *(*malloc)(size_t),
+ void *(*realloc)(void *, size_t), void (*free)(void *))
+{
+ reftable_malloc_ptr = malloc;
+ reftable_realloc_ptr = realloc;
+ reftable_free_ptr = free;
+}
+
+int hash_size(uint32_t id)
+{
+ switch (id) {
+ case 0:
+ case GIT_SHA1_FORMAT_ID:
+ return GIT_SHA1_RAWSZ;
+ case GIT_SHA256_FORMAT_ID:
+ return GIT_SHA256_RAWSZ;
+ }
+ abort();
+}
--- /dev/null
+/*
+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_H
+#define REFTABLE_H
+
+#include <stddef.h>
+
+/* Overrides the functions to use for memory management. */
+void reftable_set_alloc(void *(*malloc)(size_t),
+ void *(*realloc)(void *, size_t), void (*free)(void *));
+
+#endif
--- /dev/null
+/*
+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_TESTS_H
+#define REFTABLE_TESTS_H
+
+int basics_test_main(int argc, const char **argv);
+int block_test_main(int argc, const char **argv);
+int merged_test_main(int argc, const char **argv);
+int record_test_main(int argc, const char **argv);
+int refname_test_main(int argc, const char **argv);
+int reftable_test_main(int argc, const char **argv);
+int stack_test_main(int argc, const char **argv);
+int tree_test_main(int argc, const char **argv);
+int reftable_dump_main(int argc, char *const *argv);
+
+#endif
--- /dev/null
+/*
+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 SYSTEM_H
+#define SYSTEM_H
+
+/* This header glues the reftable library to the rest of Git */
+
+#include "git-compat-util.h"
+#include "strbuf.h"
+#include "hash.h" /* hash ID, sizes.*/
+#include "dir.h" /* remove_dir_recursively, for tests.*/
+
+#include <zlib.h>
+
+#ifdef NO_UNCOMPRESS2
+/*
+ * This is uncompress2, which is only available in zlib >= 1.2.9
+ * (released as of early 2017)
+ */
+int uncompress2(Bytef *dest, uLongf *destLen, const Bytef *source,
+ uLong *sourceLen);
+#endif
+
+int hash_size(uint32_t id);
+
+#endif
--- /dev/null
+/*
+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 "system.h"
+#include "test_framework.h"
+
+#include "basics.h"
+
+void set_test_hash(uint8_t *p, int i)
+{
+ memset(p, (uint8_t)i, hash_size(GIT_SHA1_FORMAT_ID));
+}
+
+ssize_t strbuf_add_void(void *b, const void *data, size_t sz)
+{
+ strbuf_add(b, data, sz);
+ return sz;
+}
--- /dev/null
+/*
+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 TEST_FRAMEWORK_H
+#define TEST_FRAMEWORK_H
+
+#include "system.h"
+#include "reftable-error.h"
+
+#define EXPECT_ERR(c) \
+ if (c != 0) { \
+ fflush(stderr); \
+ fflush(stdout); \
+ fprintf(stderr, "%s: %d: error == %d (%s), want 0\n", \
+ __FILE__, __LINE__, c, reftable_error_str(c)); \
+ abort(); \
+ }
+
+#define EXPECT_STREQ(a, b) \
+ if (strcmp(a, b)) { \
+ fflush(stderr); \
+ fflush(stdout); \
+ fprintf(stderr, "%s:%d: %s (%s) != %s (%s)\n", __FILE__, \
+ __LINE__, #a, a, #b, b); \
+ abort(); \
+ }
+
+#define EXPECT(c) \
+ if (!(c)) { \
+ fflush(stderr); \
+ fflush(stdout); \
+ fprintf(stderr, "%s: %d: failed assertion %s\n", __FILE__, \
+ __LINE__, #c); \
+ abort(); \
+ }
+
+#define RUN_TEST(f) \
+ fprintf(stderr, "running %s\n", #f); \
+ fflush(stderr); \
+ f();
+
+void set_test_hash(uint8_t *p, int i);
+
+/* Like strbuf_add, but suitable for passing to reftable_new_writer
+ */
+ssize_t strbuf_add_void(void *b, const void *data, size_t sz);
+
+#endif
--- /dev/null
+#include "reftable/reftable-tests.h"
+#include "test-tool.h"
+
+int cmd__reftable(int argc, const char **argv)
+{
+ basics_test_main(argc, argv);
+
+ return 0;
+}
{ "pcre2-config", cmd__pcre2_config },
{ "pkt-line", cmd__pkt_line },
{ "prio-queue", cmd__prio_queue },
- { "proc-receive", cmd__proc_receive},
+ { "proc-receive", cmd__proc_receive },
{ "progress", cmd__progress },
{ "reach", cmd__reach },
{ "read-cache", cmd__read_cache },
{ "read-graph", cmd__read_graph },
{ "read-midx", cmd__read_midx },
{ "ref-store", cmd__ref_store },
+ { "reftable", cmd__reftable },
{ "regex", cmd__regex },
{ "repository", cmd__repository },
{ "revision-walking", cmd__revision_walking },
int cmd__read_graph(int argc, const char **argv);
int cmd__read_midx(int argc, const char **argv);
int cmd__ref_store(int argc, const char **argv);
+int cmd__reftable(int argc, const char **argv);
int cmd__regex(int argc, const char **argv);
int cmd__repository(int argc, const char **argv);
int cmd__revision_walking(int argc, const char **argv);
--- /dev/null
+#!/bin/sh
+#
+# Copyright (c) 2020 Google LLC
+#
+
+test_description='reftable unittests'
+
+. ./test-lib.sh
+
+test_expect_success 'unittests' '
+ TMPDIR=$(pwd) && export TMPDIR &&
+ test-tool reftable
+'
+
+test_done
projects / thirdparty / git.git / commitdiff
