diff options
author | aleksana <me@aleksana.moe> | 2024-09-20 13:39:22 +0800 |
---|---|---|
committer | github-actions[bot] <github-actions[bot]@users.noreply.github.com> | 2024-09-20 10:35:12 +0000 |
commit | d63667683134ae2eb32bca7ecfbeb2bcfdc91923 (patch) | |
tree | 1b34398fbb8a95d91d18789207e2023874c020b3 | |
parent | c592dd0687cbe42bd3a914062a6b5b2f7c6490dd (diff) |
nixVersions.git: 2.25.0pre20240910 -> 2.25.0pre20240920 backport-343187-to-release-24.05
Diff: https://github.com/NixOS/nix/compare/b9d3cdf...ca3fc16 (cherry picked from commit 4976e1502111a9ed523dad3028bfc617365c51e7)
3 files changed, 1239 insertions, 3 deletions
diff --git a/pkgs/tools/package-management/nix/default.nix b/pkgs/tools/package-management/nix/default.nix index aeb4806799bdb..5c887f18a0a9d 100644 --- a/pkgs/tools/package-management/nix/default.nix +++ b/pkgs/tools/package-management/nix/default.nix @@ -3,12 +3,14 @@ , stdenv , aws-sdk-cpp , boehmgc +, libgit2 , callPackage , fetchFromGitHub , fetchpatch , fetchpatch2 , runCommand , overrideSDK +, buildPackages , Security , storeDir ? "/nix/store" @@ -85,6 +87,27 @@ let requiredSystemFeatures = [ ]; }; + libgit2-thin-packfile = libgit2.overrideAttrs (args: { + nativeBuildInputs = args.nativeBuildInputs or [] + # gitMinimal does not build on Windows. See packbuilder patch. + ++ lib.optionals (!stdenv.hostPlatform.isWindows) [ + # Needed for `git apply`; see `prePatch` + buildPackages.gitMinimal + ]; + # Only `git apply` can handle git binary patches + prePatch = args.prePatch or "" + + lib.optionalString (!stdenv.hostPlatform.isWindows) '' + patch() { + git apply + } + ''; + # taken from https://github.com/NixOS/nix/tree/master/packaging/patches + patches = (args.patches or []) ++ [ + ./patches/libgit2-mempack-thin-packfile.patch + ] ++ lib.optionals (!stdenv.hostPlatform.isWindows) [ + ./patches/libgit2-packbuilder-callback-interruptible.patch + ]; + }); common = args: callPackage @@ -93,6 +116,7 @@ let inherit Security storeDir stateDir confDir; boehmgc = boehmgc-nix; aws-sdk-cpp = if lib.versionAtLeast args.version "2.12pre" then aws-sdk-cpp-nix else aws-sdk-cpp-old-nix; + libgit2 = if lib.versionAtLeast args.version "2.25.0" then libgit2-thin-packfile else libgit2; }; # https://github.com/NixOS/nix/pull/7585 @@ -201,12 +225,12 @@ in lib.makeExtensible (self: ({ git = (common rec { version = "2.25.0"; - suffix = "pre20240910_${lib.substring 0 8 src.rev}"; + suffix = "pre20240920_${lib.substring 0 8 src.rev}"; src = fetchFromGitHub { owner = "NixOS"; repo = "nix"; - rev = "b9d3cdfbd2b873cf34600b262247d77109dfd905"; - hash = "sha256-7zH8TU5g3Bsg6ES0O8RcTm6JGYOMuDCGlSI3AQKbKy8="; + rev = "ca3fc1693b309ab6b8b0c09408a08d0055bf0363"; + hash = "sha256-Hp7dkx7zfB9a4l5QusXUob0b1T2qdZ23LFo5dcp3xrU="; }; self_attribute_name = "git"; }).override (lib.optionalAttrs (stdenv.isDarwin && stdenv.isx86_64) { diff --git a/pkgs/tools/package-management/nix/patches/libgit2-mempack-thin-packfile.patch b/pkgs/tools/package-management/nix/patches/libgit2-mempack-thin-packfile.patch new file mode 100644 index 0000000000000..fb74b1683136b --- /dev/null +++ b/pkgs/tools/package-management/nix/patches/libgit2-mempack-thin-packfile.patch @@ -0,0 +1,282 @@ +commit 9bacade4a3ef4b6b26e2c02f549eef0e9eb9eaa2 +Author: Robert Hensing <robert@roberthensing.nl> +Date: Sun Aug 18 20:20:36 2024 +0200 + + Add unoptimized git_mempack_write_thin_pack + +diff --git a/include/git2/sys/mempack.h b/include/git2/sys/mempack.h +index 17da590a3..3688bdd50 100644 +--- a/include/git2/sys/mempack.h ++++ b/include/git2/sys/mempack.h +@@ -44,6 +44,29 @@ GIT_BEGIN_DECL + */ + GIT_EXTERN(int) git_mempack_new(git_odb_backend **out); + ++/** ++ * Write a thin packfile with the objects in the memory store. ++ * ++ * A thin packfile is a packfile that does not contain its transitive closure of ++ * references. This is useful for efficiently distributing additions to a ++ * repository over the network, but also finds use in the efficient bulk ++ * addition of objects to a repository, locally. ++ * ++ * This operation performs the (shallow) insert operations into the ++ * `git_packbuilder`, but does not write the packfile to disk; ++ * see `git_packbuilder_write_buf`. ++ * ++ * It also does not reset the memory store; see `git_mempack_reset`. ++ * ++ * @note This function may or may not write trees and blobs that are not ++ * referenced by commits. Currently everything is written, but this ++ * behavior may change in the future as the packer is optimized. ++ * ++ * @param backend The mempack backend ++ * @param pb The packbuilder to use to write the packfile ++ */ ++GIT_EXTERN(int) git_mempack_write_thin_pack(git_odb_backend *backend, git_packbuilder *pb); ++ + /** + * Dump all the queued in-memory writes to a packfile. + * +diff --git a/src/libgit2/odb_mempack.c b/src/libgit2/odb_mempack.c +index 6f27f45f8..0b61e2b66 100644 +--- a/src/libgit2/odb_mempack.c ++++ b/src/libgit2/odb_mempack.c +@@ -132,6 +132,35 @@ cleanup: + return err; + } + ++int git_mempack_write_thin_pack(git_odb_backend *backend, git_packbuilder *pb) ++{ ++ struct memory_packer_db *db = (struct memory_packer_db *)backend; ++ const git_oid *oid; ++ size_t iter = 0; ++ int err = -1; ++ ++ /* TODO: Implement the recency heuristics. ++ For this it probably makes sense to only write what's referenced ++ through commits, an option I've carved out for you in the docs. ++ wrt heuristics: ask your favorite LLM to translate https://git-scm.com/docs/pack-heuristics/en ++ to actual normal reference documentation. */ ++ while (true) { ++ err = git_oidmap_iterate(NULL, db->objects, &iter, &oid); ++ if (err == GIT_ITEROVER) { ++ err = 0; ++ break; ++ } ++ if (err != 0) ++ return err; ++ ++ err = git_packbuilder_insert(pb, oid, NULL); ++ if (err != 0) ++ return err; ++ } ++ ++ return 0; ++} ++ + int git_mempack_dump( + git_buf *pack, + git_repository *repo, +diff --git a/tests/libgit2/mempack/thinpack.c b/tests/libgit2/mempack/thinpack.c +new file mode 100644 +index 000000000..604a4dda2 +--- /dev/null ++++ b/tests/libgit2/mempack/thinpack.c +@@ -0,0 +1,196 @@ ++#include "clar_libgit2.h" ++#include "git2/indexer.h" ++#include "git2/odb_backend.h" ++#include "git2/tree.h" ++#include "git2/types.h" ++#include "git2/sys/mempack.h" ++#include "git2/sys/odb_backend.h" ++#include "util.h" ++ ++static git_repository *_repo; ++static git_odb_backend * _mempack_backend; ++ ++void test_mempack_thinpack__initialize(void) ++{ ++ git_odb *odb; ++ ++ _repo = cl_git_sandbox_init_new("mempack_thinpack_repo"); ++ ++ cl_git_pass(git_mempack_new(&_mempack_backend)); ++ cl_git_pass(git_repository_odb(&odb, _repo)); ++ cl_git_pass(git_odb_add_backend(odb, _mempack_backend, 999)); ++ git_odb_free(odb); ++} ++ ++void _mempack_thinpack__cleanup(void) ++{ ++ cl_git_sandbox_cleanup(); ++} ++ ++/* ++ Generating a packfile for an unchanged repo works and produces an empty packfile. ++ Even if we allow this scenario to be detected, it shouldn't misbehave if the ++ application is unaware of it. ++*/ ++void test_mempack_thinpack__empty(void) ++{ ++ git_packbuilder *pb; ++ int version; ++ int n; ++ git_buf buf = GIT_BUF_INIT; ++ ++ git_packbuilder_new(&pb, _repo); ++ ++ cl_git_pass(git_mempack_write_thin_pack(_mempack_backend, pb)); ++ cl_git_pass(git_packbuilder_write_buf(&buf, pb)); ++ cl_assert_in_range(12, buf.size, 1024 /* empty packfile is >0 bytes, but certainly not that big */); ++ cl_assert(buf.ptr[0] == 'P'); ++ cl_assert(buf.ptr[1] == 'A'); ++ cl_assert(buf.ptr[2] == 'C'); ++ cl_assert(buf.ptr[3] == 'K'); ++ version = (buf.ptr[4] << 24) | (buf.ptr[5] << 16) | (buf.ptr[6] << 8) | buf.ptr[7]; ++ /* Subject to change. https://git-scm.com/docs/pack-format: Git currently accepts version number 2 or 3 but generates version 2 only.*/ ++ cl_assert_equal_i(2, version); ++ n = (buf.ptr[8] << 24) | (buf.ptr[9] << 16) | (buf.ptr[10] << 8) | buf.ptr[11]; ++ cl_assert_equal_i(0, n); ++ git_buf_dispose(&buf); ++ ++ git_packbuilder_free(pb); ++} ++ ++#define LIT_LEN(x) x, sizeof(x) - 1 ++ ++/* ++ Check that git_mempack_write_thin_pack produces a thin packfile. ++*/ ++void test_mempack_thinpack__thin(void) ++{ ++ /* Outline: ++ - Create tree 1 ++ - Flush to packfile A ++ - Create tree 2 ++ - Flush to packfile B ++ ++ Tree 2 has a new blob and a reference to a blob from tree 1. ++ ++ Expectation: ++ - Packfile B is thin and does not contain the objects from packfile A ++ */ ++ ++ ++ git_oid oid_blob_1; ++ git_oid oid_blob_2; ++ git_oid oid_blob_3; ++ git_oid oid_tree_1; ++ git_oid oid_tree_2; ++ git_treebuilder *tb; ++ ++ git_packbuilder *pb; ++ git_buf buf = GIT_BUF_INIT; ++ git_indexer *indexer; ++ git_indexer_progress stats; ++ char pack_dir_path[1024]; ++ ++ char sbuf[1024]; ++ const char * repo_path; ++ const char * pack_name_1; ++ const char * pack_name_2; ++ git_str pack_path_1 = GIT_STR_INIT; ++ git_str pack_path_2 = GIT_STR_INIT; ++ git_odb_backend * pack_odb_backend_1; ++ git_odb_backend * pack_odb_backend_2; ++ ++ ++ cl_assert_in_range(0, snprintf(pack_dir_path, sizeof(pack_dir_path), "%s/objects/pack", git_repository_path(_repo)), sizeof(pack_dir_path)); ++ ++ /* Create tree 1 */ ++ ++ cl_git_pass(git_blob_create_from_buffer(&oid_blob_1, _repo, LIT_LEN("thinpack blob 1"))); ++ cl_git_pass(git_blob_create_from_buffer(&oid_blob_2, _repo, LIT_LEN("thinpack blob 2"))); ++ ++ ++ cl_git_pass(git_treebuilder_new(&tb, _repo, NULL)); ++ cl_git_pass(git_treebuilder_insert(NULL, tb, "blob1", &oid_blob_1, GIT_FILEMODE_BLOB)); ++ cl_git_pass(git_treebuilder_insert(NULL, tb, "blob2", &oid_blob_2, GIT_FILEMODE_BLOB)); ++ cl_git_pass(git_treebuilder_write(&oid_tree_1, tb)); ++ ++ /* Flush */ ++ ++ cl_git_pass(git_packbuilder_new(&pb, _repo)); ++ cl_git_pass(git_mempack_write_thin_pack(_mempack_backend, pb)); ++ cl_git_pass(git_packbuilder_write_buf(&buf, pb)); ++ cl_git_pass(git_indexer_new(&indexer, pack_dir_path, 0, NULL, NULL)); ++ cl_git_pass(git_indexer_append(indexer, buf.ptr, buf.size, &stats)); ++ cl_git_pass(git_indexer_commit(indexer, &stats)); ++ pack_name_1 = strdup(git_indexer_name(indexer)); ++ cl_assert(pack_name_1); ++ git_buf_dispose(&buf); ++ git_mempack_reset(_mempack_backend); ++ git_indexer_free(indexer); ++ git_packbuilder_free(pb); ++ ++ /* Create tree 2 */ ++ ++ cl_git_pass(git_treebuilder_clear(tb)); ++ /* blob 1 won't be used, but we add it anyway to test that just "declaring" an object doesn't ++ necessarily cause its inclusion in the next thin packfile. It must only be included if new. */ ++ cl_git_pass(git_blob_create_from_buffer(&oid_blob_1, _repo, LIT_LEN("thinpack blob 1"))); ++ cl_git_pass(git_blob_create_from_buffer(&oid_blob_3, _repo, LIT_LEN("thinpack blob 3"))); ++ cl_git_pass(git_treebuilder_insert(NULL, tb, "blob1", &oid_blob_1, GIT_FILEMODE_BLOB)); ++ cl_git_pass(git_treebuilder_insert(NULL, tb, "blob3", &oid_blob_3, GIT_FILEMODE_BLOB)); ++ cl_git_pass(git_treebuilder_write(&oid_tree_2, tb)); ++ ++ /* Flush */ ++ ++ cl_git_pass(git_packbuilder_new(&pb, _repo)); ++ cl_git_pass(git_mempack_write_thin_pack(_mempack_backend, pb)); ++ cl_git_pass(git_packbuilder_write_buf(&buf, pb)); ++ cl_git_pass(git_indexer_new(&indexer, pack_dir_path, 0, NULL, NULL)); ++ cl_git_pass(git_indexer_append(indexer, buf.ptr, buf.size, &stats)); ++ cl_git_pass(git_indexer_commit(indexer, &stats)); ++ pack_name_2 = strdup(git_indexer_name(indexer)); ++ cl_assert(pack_name_2); ++ git_buf_dispose(&buf); ++ git_mempack_reset(_mempack_backend); ++ git_indexer_free(indexer); ++ git_packbuilder_free(pb); ++ git_treebuilder_free(tb); ++ ++ /* Assertions */ ++ ++ assert(pack_name_1); ++ assert(pack_name_2); ++ ++ repo_path = git_repository_path(_repo); ++ ++ snprintf(sbuf, sizeof(sbuf), "objects/pack/pack-%s.pack", pack_name_1); ++ git_str_joinpath(&pack_path_1, repo_path, sbuf); ++ snprintf(sbuf, sizeof(sbuf), "objects/pack/pack-%s.pack", pack_name_2); ++ git_str_joinpath(&pack_path_2, repo_path, sbuf); ++ ++ /* If they're the same, something definitely went wrong. */ ++ cl_assert(strcmp(pack_name_1, pack_name_2) != 0); ++ ++ cl_git_pass(git_odb_backend_one_pack(&pack_odb_backend_1, pack_path_1.ptr)); ++ cl_assert(pack_odb_backend_1->exists(pack_odb_backend_1, &oid_blob_1)); ++ cl_assert(pack_odb_backend_1->exists(pack_odb_backend_1, &oid_blob_2)); ++ cl_assert(!pack_odb_backend_1->exists(pack_odb_backend_1, &oid_blob_3)); ++ cl_assert(pack_odb_backend_1->exists(pack_odb_backend_1, &oid_tree_1)); ++ cl_assert(!pack_odb_backend_1->exists(pack_odb_backend_1, &oid_tree_2)); ++ ++ cl_git_pass(git_odb_backend_one_pack(&pack_odb_backend_2, pack_path_2.ptr)); ++ /* blob 1 is already in the packfile 1, so packfile 2 must not include it, in order to be _thin_. */ ++ cl_assert(!pack_odb_backend_2->exists(pack_odb_backend_2, &oid_blob_1)); ++ cl_assert(!pack_odb_backend_2->exists(pack_odb_backend_2, &oid_blob_2)); ++ cl_assert(pack_odb_backend_2->exists(pack_odb_backend_2, &oid_blob_3)); ++ cl_assert(!pack_odb_backend_2->exists(pack_odb_backend_2, &oid_tree_1)); ++ cl_assert(pack_odb_backend_2->exists(pack_odb_backend_2, &oid_tree_2)); ++ ++ pack_odb_backend_1->free(pack_odb_backend_1); ++ pack_odb_backend_2->free(pack_odb_backend_2); ++ free((void *)pack_name_1); ++ free((void *)pack_name_2); ++ git_str_dispose(&pack_path_1); ++ git_str_dispose(&pack_path_2); ++ ++} diff --git a/pkgs/tools/package-management/nix/patches/libgit2-packbuilder-callback-interruptible.patch b/pkgs/tools/package-management/nix/patches/libgit2-packbuilder-callback-interruptible.patch new file mode 100644 index 0000000000000..c67822ff755eb --- /dev/null +++ b/pkgs/tools/package-management/nix/patches/libgit2-packbuilder-callback-interruptible.patch @@ -0,0 +1,930 @@ +commit e9823c5da4fa977c46bcb97167fbdd0d70adb5ff +Author: Robert Hensing <robert@roberthensing.nl> +Date: Mon Aug 26 20:07:04 2024 +0200 + + Make packbuilder interruptible using progress callback + + Forward errors from packbuilder->progress_cb + + This allows the callback to terminate long-running operations when + the application is interrupted. + +diff --git a/include/git2/pack.h b/include/git2/pack.h +index 0f6bd2ab9..bee72a6c0 100644 +--- a/include/git2/pack.h ++++ b/include/git2/pack.h +@@ -247,6 +247,9 @@ typedef int GIT_CALLBACK(git_packbuilder_progress)( + * @param progress_cb Function to call with progress information during + * pack building. Be aware that this is called inline with pack building + * operations, so performance may be affected. ++ * When progress_cb returns an error, the pack building process will be ++ * aborted and the error will be returned from the invoked function. ++ * `pb` must then be freed. + * @param progress_cb_payload Payload for progress callback. + * @return 0 or an error code + */ +diff --git a/src/libgit2/pack-objects.c b/src/libgit2/pack-objects.c +index b2d80cba9..7c331c2d5 100644 +--- a/src/libgit2/pack-objects.c ++++ b/src/libgit2/pack-objects.c +@@ -932,6 +932,9 @@ static int report_delta_progress( + { + int ret; + ++ if (pb->failure) ++ return pb->failure; ++ + if (pb->progress_cb) { + uint64_t current_time = git_time_monotonic(); + uint64_t elapsed = current_time - pb->last_progress_report_time; +@@ -943,8 +946,10 @@ static int report_delta_progress( + GIT_PACKBUILDER_DELTAFICATION, + count, pb->nr_objects, pb->progress_cb_payload); + +- if (ret) ++ if (ret) { ++ pb->failure = ret; + return git_error_set_after_callback(ret); ++ } + } + } + +@@ -976,7 +981,10 @@ static int find_deltas(git_packbuilder *pb, git_pobject **list, + } + + pb->nr_deltified += 1; +- report_delta_progress(pb, pb->nr_deltified, false); ++ if ((error = report_delta_progress(pb, pb->nr_deltified, false)) < 0) { ++ GIT_ASSERT(git_packbuilder__progress_unlock(pb) == 0); ++ goto on_error; ++ } + + po = *list++; + (*list_size)--; +@@ -1124,6 +1132,10 @@ struct thread_params { + size_t depth; + size_t working; + size_t data_ready; ++ ++ /* A pb->progress_cb can stop the packing process by returning an error. ++ When that happens, all threads observe the error and stop voluntarily. */ ++ bool stopped; + }; + + static void *threaded_find_deltas(void *arg) +@@ -1133,7 +1145,12 @@ static void *threaded_find_deltas(void *arg) + while (me->remaining) { + if (find_deltas(me->pb, me->list, &me->remaining, + me->window, me->depth) < 0) { +- ; /* TODO */ ++ me->stopped = true; ++ GIT_ASSERT_WITH_RETVAL(git_packbuilder__progress_lock(me->pb) == 0, NULL); ++ me->working = false; ++ git_cond_signal(&me->pb->progress_cond); ++ GIT_ASSERT_WITH_RETVAL(git_packbuilder__progress_unlock(me->pb) == 0, NULL); ++ return NULL; + } + + GIT_ASSERT_WITH_RETVAL(git_packbuilder__progress_lock(me->pb) == 0, NULL); +@@ -1175,8 +1192,7 @@ static int ll_find_deltas(git_packbuilder *pb, git_pobject **list, + pb->nr_threads = git__online_cpus(); + + if (pb->nr_threads <= 1) { +- find_deltas(pb, list, &list_size, window, depth); +- return 0; ++ return find_deltas(pb, list, &list_size, window, depth); + } + + p = git__mallocarray(pb->nr_threads, sizeof(*p)); +@@ -1195,6 +1211,7 @@ static int ll_find_deltas(git_packbuilder *pb, git_pobject **list, + p[i].depth = depth; + p[i].working = 1; + p[i].data_ready = 0; ++ p[i].stopped = 0; + + /* try to split chunks on "path" boundaries */ + while (sub_size && sub_size < list_size && +@@ -1262,7 +1279,7 @@ static int ll_find_deltas(git_packbuilder *pb, git_pobject **list, + (!victim || victim->remaining < p[i].remaining)) + victim = &p[i]; + +- if (victim) { ++ if (victim && !target->stopped) { + sub_size = victim->remaining / 2; + list = victim->list + victim->list_size - sub_size; + while (sub_size && list[0]->hash && +@@ -1286,7 +1303,7 @@ static int ll_find_deltas(git_packbuilder *pb, git_pobject **list, + } + target->list_size = sub_size; + target->remaining = sub_size; +- target->working = 1; ++ target->working = 1; /* even when target->stopped, so that we don't process this thread again */ + GIT_ASSERT(git_packbuilder__progress_unlock(pb) == 0); + + if (git_mutex_lock(&target->mutex)) { +@@ -1299,7 +1316,7 @@ static int ll_find_deltas(git_packbuilder *pb, git_pobject **list, + git_cond_signal(&target->cond); + git_mutex_unlock(&target->mutex); + +- if (!sub_size) { ++ if (target->stopped || !sub_size) { + git_thread_join(&target->thread, NULL); + git_cond_free(&target->cond); + git_mutex_free(&target->mutex); +@@ -1308,7 +1325,7 @@ static int ll_find_deltas(git_packbuilder *pb, git_pobject **list, + } + + git__free(p); +- return 0; ++ return pb->failure; + } + + #else +@@ -1319,6 +1336,7 @@ int git_packbuilder__prepare(git_packbuilder *pb) + { + git_pobject **delta_list; + size_t i, n = 0; ++ int error; + + if (pb->nr_objects == 0 || pb->done) + return 0; /* nothing to do */ +@@ -1327,8 +1345,10 @@ int git_packbuilder__prepare(git_packbuilder *pb) + * Although we do not report progress during deltafication, we + * at least report that we are in the deltafication stage + */ +- if (pb->progress_cb) +- pb->progress_cb(GIT_PACKBUILDER_DELTAFICATION, 0, pb->nr_objects, pb->progress_cb_payload); ++ if (pb->progress_cb) { ++ if ((error = pb->progress_cb(GIT_PACKBUILDER_DELTAFICATION, 0, pb->nr_objects, pb->progress_cb_payload)) < 0) ++ return git_error_set_after_callback(error); ++ } + + delta_list = git__mallocarray(pb->nr_objects, sizeof(*delta_list)); + GIT_ERROR_CHECK_ALLOC(delta_list); +@@ -1345,31 +1365,33 @@ int git_packbuilder__prepare(git_packbuilder *pb) + + if (n > 1) { + git__tsort((void **)delta_list, n, type_size_sort); +- if (ll_find_deltas(pb, delta_list, n, ++ if ((error = ll_find_deltas(pb, delta_list, n, + GIT_PACK_WINDOW + 1, +- GIT_PACK_DEPTH) < 0) { ++ GIT_PACK_DEPTH)) < 0) { + git__free(delta_list); +- return -1; ++ return error; + } + } + +- report_delta_progress(pb, pb->nr_objects, true); ++ error = report_delta_progress(pb, pb->nr_objects, true); + + pb->done = true; + git__free(delta_list); +- return 0; ++ return error; + } + +-#define PREPARE_PACK if (git_packbuilder__prepare(pb) < 0) { return -1; } ++#define PREPARE_PACK error = git_packbuilder__prepare(pb); if (error < 0) { return error; } + + int git_packbuilder_foreach(git_packbuilder *pb, int (*cb)(void *buf, size_t size, void *payload), void *payload) + { ++ int error; + PREPARE_PACK; + return write_pack(pb, cb, payload); + } + + int git_packbuilder__write_buf(git_str *buf, git_packbuilder *pb) + { ++ int error; + PREPARE_PACK; + + return write_pack(pb, &write_pack_buf, buf); +diff --git a/src/libgit2/pack-objects.h b/src/libgit2/pack-objects.h +index bbc8b9430..380a28ebe 100644 +--- a/src/libgit2/pack-objects.h ++++ b/src/libgit2/pack-objects.h +@@ -100,6 +100,10 @@ struct git_packbuilder { + uint64_t last_progress_report_time; + + bool done; ++ ++ /* A non-zero error code in failure causes all threads to shut themselves ++ down. Some functions will return this error code. */ ++ volatile int failure; + }; + + int git_packbuilder__write_buf(git_str *buf, git_packbuilder *pb); +diff --git a/tests/libgit2/pack/cancel.c b/tests/libgit2/pack/cancel.c +new file mode 100644 +index 000000000..a0aa9716a +--- /dev/null ++++ b/tests/libgit2/pack/cancel.c +@@ -0,0 +1,240 @@ ++#include "clar_libgit2.h" ++#include "futils.h" ++#include "pack.h" ++#include "hash.h" ++#include "iterator.h" ++#include "vector.h" ++#include "posix.h" ++#include "hash.h" ++#include "pack-objects.h" ++ ++static git_repository *_repo; ++static git_revwalk *_revwalker; ++static git_packbuilder *_packbuilder; ++static git_indexer *_indexer; ++static git_vector _commits; ++static int _commits_is_initialized; ++static git_indexer_progress _stats; ++ ++extern bool git_disable_pack_keep_file_checks; ++ ++static void pack_packbuilder_init(const char *sandbox) { ++ _repo = cl_git_sandbox_init(sandbox); ++ /* cl_git_pass(p_chdir(sandbox)); */ ++ cl_git_pass(git_revwalk_new(&_revwalker, _repo)); ++ cl_git_pass(git_packbuilder_new(&_packbuilder, _repo)); ++ cl_git_pass(git_vector_init(&_commits, 0, NULL)); ++ _commits_is_initialized = 1; ++ memset(&_stats, 0, sizeof(_stats)); ++ p_fsync__cnt = 0; ++} ++ ++void test_pack_cancel__initialize(void) ++{ ++ pack_packbuilder_init("small.git"); ++} ++ ++void test_pack_cancel__cleanup(void) ++{ ++ git_oid *o; ++ unsigned int i; ++ ++ cl_git_pass(git_libgit2_opts(GIT_OPT_ENABLE_FSYNC_GITDIR, 0)); ++ cl_git_pass(git_libgit2_opts(GIT_OPT_DISABLE_PACK_KEEP_FILE_CHECKS, false)); ++ ++ if (_commits_is_initialized) { ++ _commits_is_initialized = 0; ++ git_vector_foreach(&_commits, i, o) { ++ git__free(o); ++ } ++ git_vector_free(&_commits); ++ } ++ ++ git_packbuilder_free(_packbuilder); ++ _packbuilder = NULL; ++ ++ git_revwalk_free(_revwalker); ++ _revwalker = NULL; ++ ++ git_indexer_free(_indexer); ++ _indexer = NULL; ++ ++ /* cl_git_pass(p_chdir("..")); */ ++ cl_git_sandbox_cleanup(); ++ _repo = NULL; ++} ++ ++static int seed_packbuilder(void) ++{ ++ int error; ++ git_oid oid, *o; ++ unsigned int i; ++ ++ git_revwalk_sorting(_revwalker, GIT_SORT_TIME); ++ cl_git_pass(git_revwalk_push_ref(_revwalker, "HEAD")); ++ ++ while (git_revwalk_next(&oid, _revwalker) == 0) { ++ o = git__malloc(sizeof(git_oid)); ++ cl_assert(o != NULL); ++ git_oid_cpy(o, &oid); ++ cl_git_pass(git_vector_insert(&_commits, o)); ++ } ++ ++ git_vector_foreach(&_commits, i, o) { ++ if((error = git_packbuilder_insert(_packbuilder, o, NULL)) < 0) ++ return error; ++ } ++ ++ git_vector_foreach(&_commits, i, o) { ++ git_object *obj; ++ cl_git_pass(git_object_lookup(&obj, _repo, o, GIT_OBJECT_COMMIT)); ++ error = git_packbuilder_insert_tree(_packbuilder, ++ git_commit_tree_id((git_commit *)obj)); ++ git_object_free(obj); ++ if (error < 0) ++ return error; ++ } ++ ++ return 0; ++} ++ ++static int fail_stage; ++ ++static int packbuilder_cancel_after_n_calls_cb(int stage, uint32_t current, uint32_t total, void *payload) ++{ ++ ++ /* Force the callback to run again on the next opportunity regardless ++ of how fast we're running. */ ++ _packbuilder->last_progress_report_time = 0; ++ ++ if (stage == fail_stage) { ++ int *calls = (int *)payload; ++ int n = *calls; ++ /* Always decrement, including past zero. This way the error is only ++ triggered once, making sure it is picked up immediately. */ ++ --*calls; ++ if (n == 0) ++ return GIT_EUSER; ++ } ++ ++ return 0; ++} ++ ++static void test_cancel(int n) ++{ ++ ++ int calls_remaining = n; ++ int err; ++ git_buf buf = GIT_BUF_INIT; ++ ++ /* Switch to a small repository, so that `packbuilder_cancel_after_n_calls_cb` ++ can hack the time to call the callback on every opportunity. */ ++ ++ cl_git_pass(git_packbuilder_set_callbacks(_packbuilder, &packbuilder_cancel_after_n_calls_cb, &calls_remaining)); ++ err = seed_packbuilder(); ++ if (!err) ++ err = git_packbuilder_write_buf(&buf, _packbuilder); ++ ++ cl_assert_equal_i(GIT_EUSER, err); ++} ++void test_pack_cancel__cancel_after_add_0(void) ++{ ++ fail_stage = GIT_PACKBUILDER_ADDING_OBJECTS; ++ test_cancel(0); ++} ++ ++void test_pack_cancel__cancel_after_add_1(void) ++{ ++ cl_skip(); ++ fail_stage = GIT_PACKBUILDER_ADDING_OBJECTS; ++ test_cancel(1); ++} ++ ++void test_pack_cancel__cancel_after_delta_0(void) ++{ ++ fail_stage = GIT_PACKBUILDER_DELTAFICATION; ++ test_cancel(0); ++} ++ ++void test_pack_cancel__cancel_after_delta_1(void) ++{ ++ fail_stage = GIT_PACKBUILDER_DELTAFICATION; ++ test_cancel(1); ++} ++ ++void test_pack_cancel__cancel_after_delta_0_threaded(void) ++{ ++#ifdef GIT_THREADS ++ git_packbuilder_set_threads(_packbuilder, 8); ++ fail_stage = GIT_PACKBUILDER_DELTAFICATION; ++ test_cancel(0); ++#else ++ cl_skip(); ++#endif ++} ++ ++void test_pack_cancel__cancel_after_delta_1_threaded(void) ++{ ++#ifdef GIT_THREADS ++ git_packbuilder_set_threads(_packbuilder, 8); ++ fail_stage = GIT_PACKBUILDER_DELTAFICATION; ++ test_cancel(1); ++#else ++ cl_skip(); ++#endif ++} ++ ++static int foreach_cb(void *buf, size_t len, void *payload) ++{ ++ git_indexer *idx = (git_indexer *) payload; ++ cl_git_pass(git_indexer_append(idx, buf, len, &_stats)); ++ return 0; ++} ++ ++void test_pack_cancel__foreach(void) ++{ ++ git_indexer *idx; ++ ++ seed_packbuilder(); ++ ++#ifdef GIT_EXPERIMENTAL_SHA256 ++ cl_git_pass(git_indexer_new(&idx, ".", GIT_OID_SHA1, NULL)); ++#else ++ cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL)); ++#endif ++ ++ cl_git_pass(git_packbuilder_foreach(_packbuilder, foreach_cb, idx)); ++ cl_git_pass(git_indexer_commit(idx, &_stats)); ++ git_indexer_free(idx); ++} ++ ++static int foreach_cancel_cb(void *buf, size_t len, void *payload) ++{ ++ git_indexer *idx = (git_indexer *)payload; ++ cl_git_pass(git_indexer_append(idx, buf, len, &_stats)); ++ return (_stats.total_objects > 2) ? -1111 : 0; ++} ++ ++void test_pack_cancel__foreach_with_cancel(void) ++{ ++ git_indexer *idx; ++ ++ seed_packbuilder(); ++ ++#ifdef GIT_EXPERIMENTAL_SHA256 ++ cl_git_pass(git_indexer_new(&idx, ".", GIT_OID_SHA1, NULL)); ++#else ++ cl_git_pass(git_indexer_new(&idx, ".", 0, NULL, NULL)); ++#endif ++ ++ cl_git_fail_with( ++ git_packbuilder_foreach(_packbuilder, foreach_cancel_cb, idx), -1111); ++ git_indexer_free(idx); ++} ++ ++void test_pack_cancel__keep_file_check(void) ++{ ++ assert(!git_disable_pack_keep_file_checks); ++ cl_git_pass(git_libgit2_opts(GIT_OPT_DISABLE_PACK_KEEP_FILE_CHECKS, true)); ++ assert(git_disable_pack_keep_file_checks); ++} +diff --git a/tests/resources/small.git/HEAD b/tests/resources/small.git/HEAD +new file mode 100644 +index 0000000000000000000000000000000000000000..cb089cd89a7d7686d284d8761201649346b5aa1c +GIT binary patch +literal 23 +ecmXR)O|w!cN=+-)&qz&7Db~+TEG|hc;sO9;xClW2 + +literal 0 +HcmV?d00001 + +diff --git a/tests/resources/small.git/config b/tests/resources/small.git/config +new file mode 100644 +index 0000000000000000000000000000000000000000..07d359d07cf1ed0c0074fdad71ffff5942f0adfa +GIT binary patch +literal 66 +zcmaz}&M!)h<>D+#Eyyp<EXgmbOv^9IO)M!(Eh^5;&r`5fFyP`$%gjm5%}+@M@=A(I +MQ@J>k5{uv*03B5png9R* + +literal 0 +HcmV?d00001 + +diff --git a/tests/resources/small.git/description b/tests/resources/small.git/description +new file mode 100644 +index 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