thodg/libgit2

diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index 38b4a04..de1ec5e 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -6,7 +6,7 @@ on:
     - cron: '21 3 * * 1'
 
 env:
-  docker-registry: docker.pkg.github.com
+  docker-registry: ghcr.io
 
 jobs:
   analyze:
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 69b691e..3435556 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ on:
   workflow_dispatch:
 
 env:
-  docker-registry: docker.pkg.github.com
+  docker-registry: ghcr.io
   docker-config-path: source/ci/docker
 
 jobs:
@@ -69,7 +69,7 @@ jobs:
         if [ "${{ matrix.container.base }}" != "" ]; then
           BASE_ARG="--build-arg BASE=${{ matrix.container.base }}"
         fi
-        docker build -t ${{ env.docker-registry-container-sha }} ${BASE_ARG} -f ${{ env.dockerfile }} .
+        docker build -t ${{ env.docker-registry-container-sha }} --build-arg UID=$(id -u) --build-arg GID=$(id -g) ${BASE_ARG} -f ${{ env.dockerfile }} .
         docker tag ${{ env.docker-registry-container-sha }} ${{ env.docker-registry-container-latest }}
         docker push ${{ env.docker-registry-container-sha }}
         docker push ${{ env.docker-registry-container-latest }}
@@ -85,6 +85,7 @@ jobs:
       matrix:
         platform:
         - name: "Linux (Xenial, GCC, OpenSSL)"
+          id: xenial-gcc-openssl
           container:
             name: xenial
           env:
@@ -93,6 +94,7 @@ jobs:
             CMAKE_OPTIONS: -DUSE_HTTPS=OpenSSL -DREGEX_BACKEND=builtin -DDEPRECATE_HARD=ON -DUSE_LEAK_CHECKER=valgrind -DUSE_GSSAPI=ON -DUSE_SSH=ON -DDEBUG_STRICT_ALLOC=ON -DDEBUG_STRICT_OPEN=ON
           os: ubuntu-latest
         - name: Linux (Xenial, GCC, mbedTLS)
+          id: xenial-gcc-mbedtls
           container:
             name: xenial
           env:
@@ -101,6 +103,7 @@ jobs:
             CMAKE_OPTIONS: -DUSE_HTTPS=mbedTLS -DUSE_SHA1=HTTPS -DDEPRECATE_HARD=ON -DUSE_LEAK_CHECKER=valgrind -DUSE_GSSAPI=ON -DUSE_SSH=ON
           os: ubuntu-latest
         - name: "Linux (Xenial, Clang, OpenSSL)"
+          id: xenial-clang-openssl
           container:
             name: xenial
           env:
@@ -109,6 +112,7 @@ jobs:
             CMAKE_OPTIONS: -DUSE_HTTPS=OpenSSL -DDEPRECATE_HARD=ON -DUSE_LEAK_CHECKER=valgrind -DUSE_GSSAPI=ON -DUSE_SSH=ON
           os: ubuntu-latest
         - name: "Linux (Xenial, Clang, mbedTLS)"
+          id: xenial-clang-mbedtls
           container:
             name: xenial
           env:
@@ -117,6 +121,7 @@ jobs:
             CMAKE_GENERATOR: Ninja
           os: ubuntu-latest
         - name: "Linux (MemorySanitizer)"
+          id: memorysanitizer
           container:
             name: focal
           env:
@@ -130,6 +135,7 @@ jobs:
             UBSAN_OPTIONS: print_stacktrace=1
           os: ubuntu-latest
         - name: "Linux (UndefinedBehaviorSanitizer)"
+          id: ubsanitizer
           container:
             name: focal
           env:
@@ -143,6 +149,7 @@ jobs:
             UBSAN_OPTIONS: print_stacktrace=1
           os: ubuntu-latest
         - name: "Linux (ThreadSanitizer)"
+          id: threadsanitizer
           container:
             name: focal
           env:
@@ -157,6 +164,7 @@ jobs:
             TSAN_OPTIONS: suppressions=/home/libgit2/source/script/thread-sanitizer.supp second_deadlock_stack=1
           os: ubuntu-latest
         - name: "macOS"
+          id: macos
           os: macos-10.15
           env:
             CC: clang
@@ -166,6 +174,7 @@ jobs:
             SKIP_NEGOTIATE_TESTS: true
           setup-script: osx
         - name: "Windows (amd64, Visual Studio)"
+          id: windows-amd64-vs
           os: windows-2019
           env:
             ARCH: amd64
@@ -174,6 +183,7 @@ jobs:
             SKIP_SSH_TESTS: true
             SKIP_NEGOTIATE_TESTS: true
         - name: "Windows (x86, Visual Studio)"
+          id: windows-x86-vs
           os: windows-2019
           env:
             ARCH: x86
@@ -182,6 +192,7 @@ jobs:
             SKIP_SSH_TESTS: true
             SKIP_NEGOTIATE_TESTS: true
         - name: "Windows (amd64, mingw)"
+          id: windows-amd64-mingw
           os: windows-2019
           setup-script: mingw
           env:
@@ -193,6 +204,7 @@ jobs:
             SKIP_SSH_TESTS: true
             SKIP_NEGOTIATE_TESTS: true
         - name: "Windows (x86, mingw)"
+          id: windows-x86-mingw
           os: windows-2019
           setup-script: mingw
           env:
@@ -237,10 +249,12 @@ jobs:
         export GITTEST_NEGOTIATE_PASSWORD="${{ secrets.GITTEST_NEGOTIATE_PASSWORD }}"
 
         if [ -n "${{ matrix.platform.container.name }}" ]; then
+          mkdir build
           docker run \
               --rm \
-              --user libgit2:libgit2 \
+              --user "$(id -u):$(id -g)" \
               -v "$(pwd)/source:/home/libgit2/source" \
+              -v "$(pwd)/build:/home/libgit2/build" \
               -w /home/libgit2 \
               -e ASAN_SYMBOLIZER_PATH \
               -e CC \
@@ -255,13 +269,33 @@ jobs:
               -e TSAN_OPTIONS \
               -e UBSAN_OPTIONS \
               ${{ env.docker-registry-container-sha }} \
-              /bin/bash -c "mkdir build && cd build && ../source/ci/build.sh && ../source/ci/test.sh"
+              /bin/bash -c "cd build && ../source/ci/build.sh && ../source/ci/test.sh"
         else
-          mkdir build && cd build
+          mkdir build
+          cd build
           ../source/ci/build.sh
           ../source/ci/test.sh
         fi
       shell: bash
+    - name: Upload test results
+      uses: actions/upload-artifact@v3
+      if: success() || failure()
+      with:
+        name: test-results-${{ matrix.platform.id }}
+        path: build/results_*.xml
+
+  test_results:
+    name: Test results
+    needs: [ build ]
+    runs-on: ubuntu-latest
+    steps:
+    - name: Download test results
+      uses: actions/download-artifact@v3
+    - name: Generate test summary
+      uses: test-summary/action@v1
+      with:
+        paths: 'test-results-*/*.xml'
+
 
   # Generate documentation using docurium.  We'll upload the documentation
   # as a build artifact so that it can be reviewed as part of a pull
@@ -271,6 +305,7 @@ jobs:
   documentation:
     name: Generate documentation
     needs: [ containers ]
+    if: success() || failure()
     runs-on: ubuntu-latest
     steps:
     - name: Check out repository
diff --git a/.github/workflows/nightly.yml b/.github/workflows/nightly.yml
index c26e1e2..5f80ed0 100644
--- a/.github/workflows/nightly.yml
+++ b/.github/workflows/nightly.yml
@@ -7,7 +7,7 @@ on:
   - cron: '15 1 * * *'
 
 env:
-  docker-registry: docker.pkg.github.com
+  docker-registry: ghcr.io
   docker-config-path: source/ci/docker
 
 jobs:
diff --git a/README.md b/README.md
index c73b507..a9deaa0 100644
--- a/README.md
+++ b/README.md
@@ -392,6 +392,8 @@ Here are the bindings to libgit2 that are currently available:
     * parrot-libgit2 <https://github.com/letolabs/parrot-libgit2>
 * Perl
     * Git-Raw <https://github.com/jacquesg/p5-Git-Raw>
+* Pharo Smalltalk
+    * libgit2-pharo-bindings <https://github.com/pharo-vcs/libgit2-pharo-bindings>
 * PHP
     * php-git <https://github.com/libgit2/php-git>
 * Python
@@ -405,6 +407,8 @@ Here are the bindings to libgit2 that are currently available:
     * git2-rs <https://github.com/rust-lang/git2-rs>
 * Swift
     * SwiftGit2 <https://github.com/SwiftGit2/SwiftGit2>
+* Tcl
+    * lg2 <https://github.com/apnadkarni/tcl-libgit2>
 * Vala
     * libgit2.vapi <https://github.com/apmasell/vapis/blob/master/libgit2.vapi>
 
diff --git a/ci/docker/bionic b/ci/docker/bionic
index 51af5c0..52832f3 100644
--- a/ci/docker/bionic
+++ b/ci/docker/bionic
@@ -38,7 +38,12 @@ RUN cd /tmp && \
     rm -rf mbedtls-2.16.2
 
 FROM mbedtls AS adduser
-RUN useradd --shell /bin/bash libgit2 --create-home
+ARG UID=""
+ARG GID=""
+RUN if [ "${UID}" != "" ]; then USER_ARG="--uid ${UID}"; fi && \
+    if [ "${GID}" != "" ]; then GROUP_ARG="--gid ${GID}"; fi && \
+    groupadd ${GROUP_ARG} libgit2 && \
+    useradd ${USER_ARG} --gid libgit2 --shell /bin/bash --create-home libgit2
 
 FROM adduser AS configure
 RUN mkdir /var/run/sshd
diff --git a/ci/docker/centos7 b/ci/docker/centos7
index 8105f14..28ed650 100644
--- a/ci/docker/centos7
+++ b/ci/docker/centos7
@@ -48,7 +48,12 @@ RUN cd /tmp && \
     rm -rf cmake-3.21.1
 
 FROM cmake AS adduser
-RUN useradd --shell /bin/bash libgit2 --create-home
+ARG UID=""
+ARG GID=""
+RUN if [ "${UID}" != "" ]; then USER_ARG="--uid ${UID}"; fi && \
+    if [ "${GID}" != "" ]; then GROUP_ARG="--gid ${GID}"; fi && \
+    groupadd ${GROUP_ARG} libgit2 && \
+    useradd ${USER_ARG} --gid libgit2 --shell /bin/bash --create-home libgit2
 
 FROM adduser AS configure
 ENV PKG_CONFIG_PATH /usr/local/lib/pkgconfig
diff --git a/ci/docker/centos8 b/ci/docker/centos8
index cca0881..81f0c3c 100644
--- a/ci/docker/centos8
+++ b/ci/docker/centos8
@@ -1,6 +1,10 @@
 ARG BASE=centos:8
 
-FROM ${BASE} AS yum
+FROM ${BASE} AS stream
+RUN dnf -y --disablerepo '*' --enablerepo=extras swap centos-linux-repos centos-stream-repos && \
+    dnf -y distro-sync
+
+FROM stream AS yum
 RUN yum install -y \
 	which \
 	bzip2 \
@@ -40,7 +44,12 @@ RUN cd /tmp && \
     rm -rf valgrind-3.15.0
 
 FROM valgrind AS adduser
-RUN useradd --shell /bin/bash libgit2 --create-home
+ARG UID=""
+ARG GID=""
+RUN if [ "${UID}" != "" ]; then USER_ARG="--uid ${UID}"; fi && \
+    if [ "${GID}" != "" ]; then GROUP_ARG="--gid ${GID}"; fi && \
+    groupadd ${GROUP_ARG} libgit2 && \
+    useradd ${USER_ARG} --gid libgit2 --shell /bin/bash --create-home libgit2
 
 FROM adduser AS configure
 ENV PKG_CONFIG_PATH /usr/local/lib/pkgconfig
diff --git a/ci/docker/focal b/ci/docker/focal
index 37d7d63..8061237 100644
--- a/ci/docker/focal
+++ b/ci/docker/focal
@@ -73,7 +73,13 @@ RUN cd /tmp && \
     rm -rf valgrind-3.15.0
 
 FROM valgrind AS adduser
-RUN useradd --shell /bin/bash libgit2 --create-home
+ARG UID=""
+ARG GID=""
+RUN if [ "${UID}" != "" ]; then USER_ARG="--uid ${UID}"; fi && \
+    if [ "${GID}" != "" ]; then GROUP_ARG="--gid ${GID}"; fi && \
+    groupadd ${GROUP_ARG} libgit2 && \
+    useradd ${USER_ARG} --gid libgit2 --shell /bin/bash --create-home libgit2
+
 
 FROM adduser AS configure
 RUN mkdir /var/run/sshd
diff --git a/ci/docker/xenial b/ci/docker/xenial
index c19fe42..c979146 100644
--- a/ci/docker/xenial
+++ b/ci/docker/xenial
@@ -60,7 +60,13 @@ RUN cd /tmp && \
     rm -rf valgrind-3.15.0
 
 FROM valgrind AS adduser
-RUN useradd --shell /bin/bash libgit2 --create-home
+ARG UID=""
+ARG GID=""
+RUN if [ "${UID}" != "" ]; then USER_ARG="--uid ${UID}"; fi && \
+    if [ "${GID}" != "" ]; then GROUP_ARG="--gid ${GID}"; fi && \
+    groupadd ${GROUP_ARG} libgit2 && \
+    useradd ${USER_ARG} --gid libgit2 --shell /bin/bash --create-home libgit2
+
 
 FROM adduser AS configure
 RUN mkdir /var/run/sshd
diff --git a/ci/getcontainer.sh b/ci/getcontainer.sh
index 07ef7b8..81d0c1d 100755
--- a/ci/getcontainer.sh
+++ b/ci/getcontainer.sh
@@ -37,9 +37,13 @@ DOCKER_REGISTRY_CONTAINER_SHA="${DOCKER_REGISTRY_CONTAINER}:${DOCKER_SHA}"
 echo "docker-registry-container-sha=${DOCKER_REGISTRY_CONTAINER_SHA}" >> $GITHUB_ENV
 echo "docker-registry-container-latest=${DOCKER_REGISTRY_CONTAINER}:latest" >> $GITHUB_ENV
 
+echo "::: logging in to ${DOCKER_REGISTRY} as ${GITHUB_ACTOR}"
+
 exists="true"
 docker login https://${DOCKER_REGISTRY} -u ${GITHUB_ACTOR} -p ${GITHUB_TOKEN} || exists="false"
 
+echo "::: pulling ${DOCKER_REGISTRY_CONTAINER_SHA}"
+
 if [ "${exists}" != "false" ]; then
 	docker pull ${DOCKER_REGISTRY_CONTAINER_SHA} || exists="false"
 fi
diff --git a/fuzzers/packfile_fuzzer.c b/fuzzers/packfile_fuzzer.c
index 6002fa1..23ecaf8 100644
--- a/fuzzers/packfile_fuzzer.c
+++ b/fuzzers/packfile_fuzzer.c
@@ -94,7 +94,7 @@ int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
 			fprintf(stderr, "Failed to compute the SHA1 hash\n");
 			abort();
 		}
-		if (git_indexer_append(indexer, &oid, sizeof(oid), &stats) < 0) {
+		if (git_indexer_append(indexer, &oid.id, GIT_OID_RAWSZ, &stats) < 0) {
 			goto cleanup;
 		}
 	}
diff --git a/include/git2/branch.h b/include/git2/branch.h
index 36a393d..27c6fa1 100644
--- a/include/git2/branch.h
+++ b/include/git2/branch.h
@@ -129,8 +129,8 @@ GIT_EXTERN(void) git_branch_iterator_free(git_branch_iterator *iter);
  * See `git_tag_create()` for rules about valid names.
  *
  * Note that if the move succeeds, the old reference object will not
- + be valid anymore, and should be freed immediately by the user using
- + `git_reference_free()`.
+ * be valid anymore, and should be freed immediately by the user using
+ * `git_reference_free()`.
  *
  * @param out New reference object for the updated name.
  *
diff --git a/include/git2/config.h b/include/git2/config.h
index a5486a4..9919447 100644
--- a/include/git2/config.h
+++ b/include/git2/config.h
@@ -122,7 +122,7 @@ typedef struct {
  * global configuration file.
  *
  * This method will not guess the path to the xdg compatible
- * config file (.config/git/config).
+ * config file (`.config/git/config`).
  *
  * @param out Pointer to a user-allocated git_buf in which to store the path
  * @return 0 if a global configuration file has been found. Its path will be stored in `out`.
@@ -149,8 +149,8 @@ GIT_EXTERN(int) git_config_find_xdg(git_buf *out);
 /**
  * Locate the path to the system configuration file
  *
- * If /etc/gitconfig doesn't exist, it will look for
- * %PROGRAMFILES%\Git\etc\gitconfig.
+ * If `/etc/gitconfig` doesn't exist, it will look for
+ * `%PROGRAMFILES%\Git\etc\gitconfig`.
  *
  * @param out Pointer to a user-allocated git_buf in which to store the path
  * @return 0 if a system configuration file has been
@@ -161,7 +161,7 @@ GIT_EXTERN(int) git_config_find_system(git_buf *out);
 /**
  * Locate the path to the configuration file in ProgramData
  *
- * Look for the file in %PROGRAMDATA%\Git\config used by portable git.
+ * Look for the file in `%PROGRAMDATA%\Git\config` used by portable git.
  *
  * @param out Pointer to a user-allocated git_buf in which to store the path
  * @return 0 if a ProgramData configuration file has been
diff --git a/include/git2/merge.h b/include/git2/merge.h
index e90941a..fcce559 100644
--- a/include/git2/merge.h
+++ b/include/git2/merge.h
@@ -603,7 +603,7 @@ GIT_EXTERN(int) git_merge_commits(
  * completes, resolve any conflicts and prepare a commit.
  *
  * For compatibility with git, the repository is put into a merging
- * state. Once the commit is done (or if the uses wishes to abort),
+ * state. Once the commit is done (or if the user wishes to abort),
  * you should clear this state by calling
  * `git_repository_state_cleanup()`.
  *
diff --git a/src/cli/cli.h b/src/cli/cli.h
index 222d53a..7dede67 100644
--- a/src/cli/cli.h
+++ b/src/cli/cli.h
@@ -15,5 +15,6 @@
 #include "error.h"
 #include "opt.h"
 #include "opt_usage.h"
+#include "sighandler.h"
 
 #endif /* CLI_cli_h__ */
diff --git a/src/cli/cmd.h b/src/cli/cmd.h
index 664b502..8b1a1b3 100644
--- a/src/cli/cmd.h
+++ b/src/cli/cmd.h
@@ -26,6 +26,7 @@ extern const cli_cmd_spec *cli_cmd_spec_byname(const char *name);
 
 /* Commands */
 extern int cmd_cat_file(int argc, char **argv);
+extern int cmd_clone(int argc, char **argv);
 extern int cmd_hash_object(int argc, char **argv);
 extern int cmd_help(int argc, char **argv);
 
diff --git a/src/cli/cmd_clone.c b/src/cli/cmd_clone.c
new file mode 100644
index 0000000..a382b58
--- /dev/null
+++ b/src/cli/cmd_clone.c
@@ -0,0 +1,176 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include <stdio.h>
+#include <git2.h>
+#include "cli.h"
+#include "cmd.h"
+#include "error.h"
+#include "sighandler.h"
+#include "progress.h"
+
+#include "fs_path.h"
+#include "futils.h"
+
+#define COMMAND_NAME "clone"
+
+static char *branch, *remote_path, *local_path;
+static int show_help, quiet, checkout = 1, bare;
+static bool local_path_exists;
+static cli_progress progress = CLI_PROGRESS_INIT;
+
+static const cli_opt_spec opts[] = {
+	{ CLI_OPT_TYPE_SWITCH,    "help",         0,  &show_help,   1,
+	  CLI_OPT_USAGE_HIDDEN | CLI_OPT_USAGE_STOP_PARSING, NULL,
+	  "display help about the " COMMAND_NAME " command" },
+
+	{ CLI_OPT_TYPE_SWITCH,    "quiet",       'q', &quiet,       1,
+	  CLI_OPT_USAGE_DEFAULT,   NULL,         "display the type of the object" },
+	{ CLI_OPT_TYPE_SWITCH,    "no-checkout", 'n', &checkout,    0,
+	  CLI_OPT_USAGE_DEFAULT,   NULL,         "don't checkout HEAD" },
+	{ CLI_OPT_TYPE_SWITCH,    "bare",         0,  &bare,        1,
+	  CLI_OPT_USAGE_DEFAULT,   NULL,         "don't create a working directory" },
+	{ CLI_OPT_TYPE_VALUE,     "branch",      'b', &branch,      0,
+	  CLI_OPT_USAGE_DEFAULT,  "name",        "branch to check out" },
+	{ CLI_OPT_TYPE_LITERAL },
+	{ CLI_OPT_TYPE_ARG,       "repository",   0,  &remote_path, 0,
+	  CLI_OPT_USAGE_REQUIRED, "repository",  "repository path" },
+	{ CLI_OPT_TYPE_ARG,       "directory",    0,  &local_path,  0,
+	  CLI_OPT_USAGE_DEFAULT,  "directory",    "directory to clone into" },
+	{ 0 }
+};
+
+static void print_help(void)
+{
+	cli_opt_usage_fprint(stdout, PROGRAM_NAME, COMMAND_NAME, opts);
+	printf("\n");
+
+	printf("Clone a repository into a new directory.\n");
+	printf("\n");
+
+	printf("Options:\n");
+
+	cli_opt_help_fprint(stdout, opts);
+}
+
+static char *compute_local_path(const char *orig_path)
+{
+	const char *slash;
+	char *local_path;
+
+	if ((slash = strrchr(orig_path, '/')) == NULL &&
+	    (slash = strrchr(orig_path, '\\')) == NULL)
+		local_path = git__strdup(orig_path);
+	else
+		local_path = git__strdup(slash + 1);
+
+	return local_path;
+}
+
+static bool validate_local_path(const char *path)
+{
+	if (!git_fs_path_exists(path))
+		return false;
+
+	if (!git_fs_path_isdir(path) || !git_fs_path_is_empty_dir(path)) {
+		fprintf(stderr, "fatal: destination path '%s' already exists and is not an empty directory.\n",
+			path);
+		exit(128);
+	}
+
+	return true;
+}
+
+static void cleanup(void)
+{
+	int rmdir_flags = GIT_RMDIR_REMOVE_FILES;
+
+	cli_progress_abort(&progress);
+
+	if (local_path_exists)
+		rmdir_flags |= GIT_RMDIR_SKIP_ROOT;
+
+	if (!git_fs_path_isdir(local_path))
+		return;
+
+	git_futils_rmdir_r(local_path, NULL, rmdir_flags);
+}
+
+static void interrupt_cleanup(void)
+{
+	cleanup();
+	exit(130);
+}
+
+int cmd_clone(int argc, char **argv)
+{
+	git_clone_options clone_opts = GIT_CLONE_OPTIONS_INIT;
+	git_repository *repo = NULL;
+	cli_opt invalid_opt;
+	char *computed_path = NULL;
+	int ret = 0;
+
+	if (cli_opt_parse(&invalid_opt, opts, argv + 1, argc - 1, CLI_OPT_PARSE_GNU))
+		return cli_opt_usage_error(COMMAND_NAME, opts, &invalid_opt);
+
+	if (show_help) {
+		print_help();
+		return 0;
+	}
+
+	if (!remote_path) {
+		ret = cli_error_usage("you must specify a repository to clone");
+		goto done;
+	}
+
+	if (bare)
+		clone_opts.bare = 1;
+
+	if (branch)
+		clone_opts.checkout_branch = branch;
+
+	if (!checkout)
+		clone_opts.checkout_opts.checkout_strategy = GIT_CHECKOUT_NONE;
+
+	if (!local_path)
+		local_path = computed_path = compute_local_path(remote_path);
+
+	local_path_exists = validate_local_path(local_path);
+
+	cli_sighandler_set_interrupt(interrupt_cleanup);
+
+	if (!local_path_exists &&
+	    git_futils_mkdir(local_path, 0777, 0) < 0) {
+		ret = cli_error_git();
+		goto done;
+	}
+
+	if (!quiet) {
+		clone_opts.fetch_opts.callbacks.sideband_progress = cli_progress_fetch_sideband;
+		clone_opts.fetch_opts.callbacks.transfer_progress = cli_progress_fetch_transfer;
+		clone_opts.fetch_opts.callbacks.payload = &progress;
+
+		clone_opts.checkout_opts.progress_cb = cli_progress_checkout;
+		clone_opts.checkout_opts.progress_payload = &progress;
+
+		printf("Cloning into '%s'...\n", local_path);
+	}
+
+	if (git_clone(&repo, remote_path, local_path, &clone_opts) < 0) {
+		cleanup();
+		ret = cli_error_git();
+		goto done;
+	}
+
+	cli_progress_finish(&progress);
+
+done:
+	cli_progress_dispose(&progress);
+	git__free(computed_path);
+	git_repository_free(repo);
+	return ret;
+}
diff --git a/src/cli/main.c b/src/cli/main.c
index 08abb32..cbfc50e 100644
--- a/src/cli/main.c
+++ b/src/cli/main.c
@@ -29,6 +29,7 @@ const cli_opt_spec cli_common_opts[] = {
 
 const cli_cmd_spec cli_cmds[] = {
 	{ "cat-file",    cmd_cat_file,    "Display an object in the repository" },
+	{ "clone",       cmd_clone,       "Clone a repository into a new directory" },
 	{ "hash-object", cmd_hash_object, "Hash a raw object and product its object ID" },
 	{ "help",        cmd_help,        "Display help information" },
 	{ NULL }
diff --git a/src/cli/progress.c b/src/cli/progress.c
new file mode 100644
index 0000000..ba52655
--- /dev/null
+++ b/src/cli/progress.c
@@ -0,0 +1,345 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include <stdio.h>
+#include <stdarg.h>
+#include <stdint.h>
+
+#include "progress.h"
+#include "error.h"
+
+/*
+ * Show updates to the percentage and number of objects received
+ * separately from the throughput to give an accurate progress while
+ * avoiding too much noise on the screen.
+ */
+#define PROGRESS_UPDATE_TIME 0.10
+#define THROUGHPUT_UPDATE_TIME 1.00
+
+#define is_nl(c) ((c) == '\r' || (c) == '\n')
+
+#define return_os_error(msg) do { \
+	git_error_set(GIT_ERROR_OS, "%s", msg); return -1; } while(0)
+
+GIT_INLINE(size_t) no_nl_len(const char *str, size_t len)
+{
+	size_t i = 0;
+
+	while (i < len && !is_nl(str[i]))
+		i++;
+
+	return i;
+}
+
+GIT_INLINE(size_t) nl_len(bool *has_nl, const char *str, size_t len)
+{
+	size_t i = no_nl_len(str, len);
+
+	*has_nl = false;
+
+	while (i < len && is_nl(str[i])) {
+		*has_nl = true;
+		i++;
+	}
+
+	return i;
+}
+
+static int progress_write(cli_progress *progress, bool force, git_str *line)
+{
+	bool has_nl;
+	size_t no_nl = no_nl_len(line->ptr, line->size);
+	size_t nl = nl_len(&has_nl, line->ptr + no_nl, line->size - no_nl);
+	double now = git__timer();
+	size_t i;
+
+	/* Avoid spamming the console with progress updates */
+	if (!force && line->ptr[line->size - 1] != '\n' && progress->last_update) {
+		if (now - progress->last_update < PROGRESS_UPDATE_TIME) {
+			git_str_clear(&progress->deferred);
+			git_str_put(&progress->deferred, line->ptr, line->size);
+			return git_str_oom(&progress->deferred) ? -1 : 0;
+		}
+	}
+
+	/*
+	 * If there's something on this line already (eg, a progress line
+	 * with only a trailing `\r` that we'll print over) then we need
+	 * to really print over it in case we're writing a shorter line.
+	 */
+	if (printf("%.*s", (int)no_nl, line->ptr) < 0)
+		return_os_error("could not print status");
+
+	if (progress->onscreen.size) {
+		for (i = no_nl; i < progress->onscreen.size; i++) {
+			if (printf(" ") < 0)
+				return_os_error("could not print status");
+		}
+	}
+
+	if (printf("%.*s", (int)nl, line->ptr + no_nl) < 0 ||
+	    fflush(stdout) != 0)
+		return_os_error("could not print status");
+
+	git_str_clear(&progress->onscreen);
+
+	if (line->ptr[line->size - 1] == '\n') {
+		progress->last_update = 0;
+	} else {
+		git_str_put(&progress->onscreen, line->ptr, line->size);
+		progress->last_update = now;
+	}
+
+	git_str_clear(&progress->deferred);
+	return git_str_oom(&progress->onscreen) ? -1 : 0;
+}
+
+static int progress_printf(cli_progress *progress, bool force, const char *fmt, ...)
+	GIT_FORMAT_PRINTF(3, 4);
+
+int progress_printf(cli_progress *progress, bool force, const char *fmt, ...)
+{
+	git_str buf = GIT_BUF_INIT;
+	va_list ap;
+	int error;
+
+	va_start(ap, fmt);
+	error = git_str_vprintf(&buf, fmt, ap);
+	va_end(ap);
+
+	if (error < 0)
+		return error;
+
+	error = progress_write(progress, force, &buf);
+
+	git_str_dispose(&buf);
+	return error;
+}
+
+static int progress_complete(cli_progress *progress)
+{
+	if (progress->deferred.size)
+		progress_write(progress, true, &progress->deferred);
+
+	if (progress->onscreen.size)
+		if (printf("\n") < 0)
+			return_os_error("could not print status");
+
+	git_str_clear(&progress->deferred);
+	git_str_clear(&progress->onscreen);
+	progress->last_update = 0;
+	progress->action_start = 0;
+	progress->action_finish = 0;
+
+	return 0;
+}
+
+GIT_INLINE(int) percent(size_t completed, size_t total)
+{
+	if (total == 0)
+		return (completed == 0) ? 100 : 0;
+
+	return (int)(((double)completed / (double)total) * 100);
+}
+
+int cli_progress_fetch_sideband(const char *str, int len, void *payload)
+{
+	cli_progress *progress = (cli_progress *)payload;
+	size_t remain;
+
+	if (len <= 0)
+		return 0;
+
+	/* Accumulate the sideband data, then print it line-at-a-time. */
+	if (git_str_put(&progress->sideband, str, len) < 0)
+		return -1;
+
+	str = progress->sideband.ptr;
+	remain = progress->sideband.size;
+
+	while (remain) {
+		bool has_nl;
+		size_t line_len = nl_len(&has_nl, str, remain);
+
+		if (!has_nl)
+			break;
+
+		if (line_len < INT_MAX) {
+			int error = progress_printf(progress, true,
+				"remote: %.*s", (int)line_len, str);
+
+			if (error < 0)
+				return error;
+		}
+
+		str += line_len;
+		remain -= line_len;
+	}
+
+	git_str_consume_bytes(&progress->sideband, (progress->sideband.size - remain));
+
+	return 0;
+}
+
+static int fetch_receiving(
+	cli_progress *progress,
+	const git_indexer_progress *stats)
+{
+	char *recv_units[] = { "B", "KiB", "MiB", "GiB", "TiB", NULL };
+	char *rate_units[] = { "B/s", "KiB/s", "MiB/s", "GiB/s", "TiB/s", NULL };
+
+	double now, recv_len, rate, elapsed;
+	size_t recv_unit_idx = 0, rate_unit_idx = 0;
+	bool done = (stats->received_objects == stats->total_objects);
+
+	if (!progress->action_start)
+		progress->action_start = git__timer();
+
+	if (done && progress->action_finish)
+		now = progress->action_finish;
+	else if (done)
+		progress->action_finish = now = git__timer();
+	else
+		now = git__timer();
+
+	if (progress->throughput_update &&
+	    now - progress->throughput_update < THROUGHPUT_UPDATE_TIME) {
+		elapsed = progress->throughput_update -
+		          progress->action_start;
+		recv_len = progress->throughput_bytes;
+	} else {
+		elapsed = now - progress->action_start;
+		recv_len = (double)stats->received_bytes;
+
+		progress->throughput_update = now;
+		progress->throughput_bytes = recv_len;
+	}
+
+	rate = elapsed ? recv_len / elapsed : 0;
+
+	while (recv_len > 1024 && recv_units[recv_unit_idx+1]) {
+		recv_len /= 1024;
+		recv_unit_idx++;
+	}
+
+	while (rate > 1024 && rate_units[rate_unit_idx+1]) {
+		rate /= 1024;
+		rate_unit_idx++;
+	}
+
+	return progress_printf(progress, false,
+		"Receiving objects: %3d%% (%d/%d), %.2f %s | %.2f %s%s\r",
+		percent(stats->received_objects, stats->total_objects),
+		stats->received_objects,
+		stats->total_objects,
+		recv_len, recv_units[recv_unit_idx],
+		rate, rate_units[rate_unit_idx],
+		done ? ", done." : "");
+}
+
+static int fetch_resolving(
+	cli_progress *progress,
+	const git_indexer_progress *stats)
+{
+	bool done = (stats->indexed_deltas == stats->total_deltas);
+
+	return progress_printf(progress, false,
+		"Resolving deltas: %3d%% (%d/%d)%s\r",
+		percent(stats->indexed_deltas, stats->total_deltas),
+		stats->indexed_deltas, stats->total_deltas,
+		done ? ", done." : "");
+}
+
+int cli_progress_fetch_transfer(const git_indexer_progress *stats, void *payload)
+{
+	cli_progress *progress = (cli_progress *)payload;
+	int error = 0;
+
+	switch (progress->action) {
+	case CLI_PROGRESS_NONE:
+		progress->action = CLI_PROGRESS_RECEIVING;
+		/* fall through */
+
+	case CLI_PROGRESS_RECEIVING:
+		if ((error = fetch_receiving(progress, stats)) < 0)
+			break;
+
+		/*
+		 * Upgrade from receiving to resolving; do this after the
+		 * final call to cli_progress_fetch_receiving (above) to
+		 * ensure that we've printed a final "done" string after
+		 * any sideband data.
+		 */
+		if (!stats->indexed_deltas)
+			break;
+
+		progress_complete(progress);
+		progress->action = CLI_PROGRESS_RESOLVING;
+		/* fall through */
+
+	case CLI_PROGRESS_RESOLVING:
+		error = fetch_resolving(progress, stats);
+		break;
+
+	default:
+		/* should not be reached */
+		GIT_ASSERT(!"unexpected progress state");
+	}
+
+	return error;
+}
+
+void cli_progress_checkout(
+	const char *path,
+	size_t completed_steps,
+	size_t total_steps,
+	void *payload)
+{
+	cli_progress *progress = (cli_progress *)payload;
+	bool done = (completed_steps == total_steps);
+
+	GIT_UNUSED(path);
+
+	if (progress->action != CLI_PROGRESS_CHECKING_OUT) {
+		progress_complete(progress);
+		progress->action = CLI_PROGRESS_CHECKING_OUT;
+	}
+
+	progress_printf(progress, false,
+		"Checking out files: %3d%% (%" PRIuZ "/%" PRIuZ ")%s\r",
+		percent(completed_steps, total_steps),
+		completed_steps, total_steps,
+		done ? ", done." : "");
+}
+
+int cli_progress_abort(cli_progress *progress)
+{
+	if (progress->onscreen.size > 0 && printf("\n") < 0)
+	    return_os_error("could not print status");
+
+	return 0;
+}
+
+int cli_progress_finish(cli_progress *progress)
+{
+	int error = progress->action ? progress_complete(progress) : 0;
+
+	progress->action = 0;
+	return error;
+}
+
+void cli_progress_dispose(cli_progress *progress)
+{
+	if (progress == NULL)
+		return;
+
+	git_str_dispose(&progress->sideband);
+	git_str_dispose(&progress->onscreen);
+	git_str_dispose(&progress->deferred);
+
+	memset(progress, 0, sizeof(cli_progress));
+}
diff --git a/src/cli/progress.h b/src/cli/progress.h
new file mode 100644
index 0000000..7a445ec
--- /dev/null
+++ b/src/cli/progress.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#ifndef CLI_progress_h__
+#define CLI_progress_h__
+
+#include <git2.h>
+#include "str.h"
+
+/*
+ * A general purpose set of progress printing functions.  An individual
+ * `cli_progress` object is capable of displaying progress for a single
+ * function, even if that function displays multiple pieces of progress
+ * (like `git_clone`).  `cli_progress_finish` should be called after
+ * any function invocation to re-set state.
+ */
+
+typedef enum {
+	CLI_PROGRESS_NONE,
+	CLI_PROGRESS_RECEIVING,
+	CLI_PROGRESS_RESOLVING,
+	CLI_PROGRESS_CHECKING_OUT
+} cli_progress_t;
+
+typedef struct {
+	cli_progress_t action;
+
+	/* Actions may time themselves (eg fetch) but are not required to */
+	double action_start;
+	double action_finish;
+
+	/* Last console update, avoid too frequent updates. */
+	double last_update;
+
+	/* Accumulators for partial output and deferred updates. */
+	git_str sideband;
+	git_str onscreen;
+	git_str deferred;
+
+	/* Last update about throughput */
+	double throughput_update;
+	double throughput_bytes;
+} cli_progress;
+
+#define CLI_PROGRESS_INIT { 0 }
+
+/**
+ * Prints sideband data from fetch to the console.  Suitable for a
+ * `sideband_progress` callback for `git_fetch_options`.
+ *
+ * @param str The sideband string
+ * @param len The length of the sideband string
+ * @param payload A pointer to the cli_progress
+ * @return 0 on success, -1 on failure
+ */
+extern int cli_progress_fetch_sideband(
+	const char *str,
+	int len,
+	void *payload);
+
+/**
+ * Prints fetch transfer statistics to the console.  Suitable for a
+ * `transfer_progress` callback for `git_fetch_options`.
+ *
+ * @param stats The indexer stats
+ * @param payload A pointer to the cli_progress
+ * @return 0 on success, -1 on failure
+ */
+extern int cli_progress_fetch_transfer(
+	const git_indexer_progress *stats,
+	void *payload);
+
+/**
+ * Prints checkout progress to the console.  Suitable for a
+ * `progress_cb` callback for `git_checkout_options`.
+ *
+ * @param path The path being written
+ * @param completed_steps The completed checkout steps
+ * @param total_steps The total number of checkout steps
+ * @param payload A pointer to the cli_progress
+ */
+extern void cli_progress_checkout(
+	const char *path,
+	size_t completed_steps,
+	size_t total_steps,
+	void *payload);
+
+/**
+ * Stop displaying progress quickly; suitable for stopping an application
+ * quickly.  Does not display any lines that were buffered, just gets the
+ * console back to a sensible place.
+ *
+ * @param progress The progress information
+ * @return 0 on success, -1 on failure
+ */
+extern int cli_progress_abort(cli_progress *progress);
+
+/**
+ * Finishes displaying progress; flushes any buffered output.
+ *
+ * @param progress The progress information
+ * @return 0 on success, -1 on failure
+ */
+extern int cli_progress_finish(cli_progress *progress);
+
+/**
+ * Disposes the progress information.
+ *
+ * @param progress The progress information
+ */
+extern void cli_progress_dispose(cli_progress *progress);
+
+#endif /* CLI_progress_h__ */
diff --git a/src/cli/sighandler.h b/src/cli/sighandler.h
new file mode 100644
index 0000000..877223e
--- /dev/null
+++ b/src/cli/sighandler.h
@@ -0,0 +1,20 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#ifndef CLI_sighandler_h__
+#define CLI_sighandler_h__
+
+/**
+ * Sets up a signal handler that will run when the process is interrupted
+ * (via SIGINT on POSIX or Control-C or Control-Break on Windows).
+ *
+ * @param handler The function to run on interrupt
+ * @return 0 on success, -1 on failure
+ */
+int cli_sighandler_set_interrupt(void (*handler)(void));
+
+#endif /* CLI_sighandler_h__ */
diff --git a/src/cli/unix/sighandler.c b/src/cli/unix/sighandler.c
new file mode 100644
index 0000000..6b4982d
--- /dev/null
+++ b/src/cli/unix/sighandler.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include <stdint.h>
+#include <signal.h>
+#include "git2_util.h"
+#include "cli.h"
+
+static void (*interrupt_handler)(void) = NULL;
+
+static void interrupt_proxy(int signal)
+{
+	GIT_UNUSED(signal);
+	interrupt_handler();
+}
+
+int cli_sighandler_set_interrupt(void (*handler)(void))
+{
+	void (*result)(int);
+
+	if ((interrupt_handler = handler) != NULL)
+		result = signal(SIGINT, interrupt_proxy);
+	else
+		result = signal(SIGINT, SIG_DFL);
+
+	if (result == SIG_ERR) {
+		git_error_set(GIT_ERROR_OS, "could not set signal handler");
+		return -1;
+	}
+
+	return 0;
+}
diff --git a/src/cli/win32/sighandler.c b/src/cli/win32/sighandler.c
new file mode 100644
index 0000000..cc0b646
--- /dev/null
+++ b/src/cli/win32/sighandler.c
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) the libgit2 contributors. All rights reserved.
+ *
+ * This file is part of libgit2, distributed under the GNU GPL v2 with
+ * a Linking Exception. For full terms see the included COPYING file.
+ */
+
+#include "git2_util.h"
+#include <windows.h>
+
+#include "cli.h"
+
+static void (*interrupt_handler)(void) = NULL;
+
+static BOOL WINAPI interrupt_proxy(DWORD signal)
+{
+	GIT_UNUSED(signal);
+	interrupt_handler();
+	return TRUE;
+}
+
+int cli_sighandler_set_interrupt(void (*handler)(void))
+{
+	BOOL result;
+
+	if ((interrupt_handler = handler) != NULL)
+		result = SetConsoleCtrlHandler(interrupt_proxy, FALSE);
+	else
+		result = SetConsoleCtrlHandler(NULL, FALSE);
+
+	if (!result) {
+		git_error_set(GIT_ERROR_OS, "could not set control control handler");
+		return -1;
+	}
+
+	return 0;
+}
diff --git a/src/libgit2/commit_graph.c b/src/libgit2/commit_graph.c
index 70e866b..10947ac 100644
--- a/src/libgit2/commit_graph.c
+++ b/src/libgit2/commit_graph.c
@@ -138,7 +138,7 @@ static int commit_graph_parse_oid_lookup(
 		struct git_commit_graph_chunk *chunk_oid_lookup)
 {
 	uint32_t i;
-	git_oid *oid, *prev_oid, zero_oid = {{0}};
+	unsigned char *oid, *prev_oid, zero_oid[GIT_OID_RAWSZ] = {0};
 
 	if (chunk_oid_lookup->offset == 0)
 		return commit_graph_error("missing OID Lookup chunk");
@@ -147,10 +147,10 @@ static int commit_graph_parse_oid_lookup(
 	if (chunk_oid_lookup->length != file->num_commits * GIT_OID_RAWSZ)
 		return commit_graph_error("OID Lookup chunk has wrong length");
 
-	file->oid_lookup = oid = (git_oid *)(data + chunk_oid_lookup->offset);
-	prev_oid = &zero_oid;
-	for (i = 0; i < file->num_commits; ++i, ++oid) {
-		if (git_oid_cmp(prev_oid, oid) >= 0)
+	file->oid_lookup = oid = (unsigned char *)(data + chunk_oid_lookup->offset);
+	prev_oid = zero_oid;
+	for (i = 0; i < file->num_commits; ++i, oid += GIT_OID_RAWSZ) {
+		if (git_oid_raw_cmp(prev_oid, oid) >= 0)
 			return commit_graph_error("OID Lookup index is non-monotonic");
 		prev_oid = oid;
 	}
@@ -437,7 +437,7 @@ static int git_commit_graph_entry_get_byindex(
 	}
 
 	commit_data = file->commit_data + pos * (GIT_OID_RAWSZ + 4 * sizeof(uint32_t));
-	git_oid_cpy(&e->tree_oid, (const git_oid *)commit_data);
+	git_oid_fromraw(&e->tree_oid, commit_data);
 	e->parent_indices[0] = ntohl(*((uint32_t *)(commit_data + GIT_OID_RAWSZ)));
 	e->parent_indices[1] = ntohl(
 			*((uint32_t *)(commit_data + GIT_OID_RAWSZ + sizeof(uint32_t))));
@@ -470,7 +470,8 @@ static int git_commit_graph_entry_get_byindex(
 			e->parent_count++;
 		}
 	}
-	git_oid_cpy(&e->sha1, &file->oid_lookup[pos]);
+
+	git_oid_fromraw(&e->sha1, &file->oid_lookup[pos * GIT_OID_RAWSZ]);
 	return 0;
 }
 
@@ -514,7 +515,7 @@ int git_commit_graph_entry_find(
 {
 	int pos, found = 0;
 	uint32_t hi, lo;
-	const git_oid *current = NULL;
+	const unsigned char *current = NULL;
 
 	GIT_ASSERT_ARG(e);
 	GIT_ASSERT_ARG(file);
@@ -528,26 +529,25 @@ int git_commit_graph_entry_find(
 	if (pos >= 0) {
 		/* An object matching exactly the oid was found */
 		found = 1;
-		current = file->oid_lookup + pos;
+		current = file->oid_lookup + (pos * GIT_OID_RAWSZ);
 	} else {
 		/* No object was found */
 		/* pos refers to the object with the "closest" oid to short_oid */
 		pos = -1 - pos;
 		if (pos < (int)file->num_commits) {
-			current = file->oid_lookup + pos;
+			current = file->oid_lookup + (pos * GIT_OID_RAWSZ);
 
-			if (!git_oid_ncmp(short_oid, current, len))
+			if (!git_oid_raw_ncmp(short_oid->id, current, len))
 				found = 1;
 		}
 	}
 
 	if (found && len != GIT_OID_HEXSZ && pos + 1 < (int)file->num_commits) {
 		/* Check for ambiguousity */
-		const git_oid *next = current + 1;
+		const unsigned char *next = current + GIT_OID_RAWSZ;
 
-		if (!git_oid_ncmp(short_oid, next, len)) {
+		if (!git_oid_raw_ncmp(short_oid->id, next, len))
 			found = 2;
-		}
 	}
 
 	if (!found)
@@ -1019,7 +1019,9 @@ static int commit_graph_write(
 	/* Fill the OID Lookup table. */
 	git_vector_foreach (&w->commits, i, packed_commit) {
 		error = git_str_put(&oid_lookup,
-			(const char *)&packed_commit->sha1, sizeof(git_oid));
+			(const char *)&packed_commit->sha1.id,
+			GIT_OID_RAWSZ);
+
 		if (error < 0)
 			goto cleanup;
 	}
@@ -1034,8 +1036,9 @@ static int commit_graph_write(
 		unsigned int parentcount = (unsigned int)git_array_size(packed_commit->parents);
 
 		error = git_str_put(&commit_data,
-				(const char *)&packed_commit->tree_oid,
-				sizeof(git_oid));
+			(const char *)&packed_commit->tree_oid.id,
+			GIT_OID_RAWSZ);
+
 		if (error < 0)
 			goto cleanup;
 
diff --git a/src/libgit2/commit_graph.h b/src/libgit2/commit_graph.h
index 45e125b..b78ab81 100644
--- a/src/libgit2/commit_graph.h
+++ b/src/libgit2/commit_graph.h
@@ -36,7 +36,7 @@ typedef struct git_commit_graph_file {
 	uint32_t num_commits;
 
 	/* The OID Lookup table. */
-	git_oid *oid_lookup;
+	unsigned char *oid_lookup;
 
 	/*
 	 * The Commit Data table. Each entry contains the OID of the commit followed
diff --git a/src/libgit2/index.c b/src/libgit2/index.c
index aa97c64..f44c507 100644
--- a/src/libgit2/index.c
+++ b/src/libgit2/index.c
@@ -74,7 +74,7 @@ struct entry_short {
 	uint32_t uid;
 	uint32_t gid;
 	uint32_t file_size;
-	git_oid oid;
+	unsigned char oid[GIT_OID_RAWSZ];
 	uint16_t flags;
 	char path[1]; /* arbitrary length */
 };
@@ -88,7 +88,7 @@ struct entry_long {
 	uint32_t uid;
 	uint32_t gid;
 	uint32_t file_size;
-	git_oid oid;
+	unsigned char oid[GIT_OID_RAWSZ];
 	uint16_t flags;
 	uint16_t flags_extended;
 	char path[1]; /* arbitrary length */
@@ -2480,9 +2480,11 @@ static int read_entry(
 	entry.uid = ntohl(source.uid);
 	entry.gid = ntohl(source.gid);
 	entry.file_size = ntohl(source.file_size);
-	git_oid_cpy(&entry.id, &source.oid);
 	entry.flags = ntohs(source.flags);
 
+	if (git_oid_fromraw(&entry.id, source.oid) < 0)
+		return -1;
+
 	if (entry.flags & GIT_INDEX_ENTRY_EXTENDED) {
 		uint16_t flags_raw;
 		size_t flags_offset;
@@ -2803,9 +2805,7 @@ static int write_disk_entry(git_filebuf *file, git_index_entry *entry, const cha
 	ondisk.uid = htonl(entry->uid);
 	ondisk.gid = htonl(entry->gid);
 	ondisk.file_size = htonl((uint32_t)entry->file_size);
-
-	git_oid_cpy(&ondisk.oid, &entry->id);
-
+	git_oid_raw_cpy(ondisk.oid, entry->id.id);
 	ondisk.flags = htons(entry->flags);
 
 	if (entry->flags & GIT_INDEX_ENTRY_EXTENDED) {
diff --git a/src/libgit2/indexer.c b/src/libgit2/indexer.c
index f9a32e7..afb9ce8 100644
--- a/src/libgit2/indexer.c
+++ b/src/libgit2/indexer.c
@@ -385,7 +385,7 @@ static int check_object_connectivity(git_indexer *idx, const git_rawobj *obj)
 			size_t i;
 
 			git_array_foreach(tree->entries, i, entry)
-				if (add_expected_oid(idx, entry->oid) < 0)
+				if (add_expected_oid(idx, &entry->oid) < 0)
 					goto out;
 
 			break;
@@ -1269,7 +1269,7 @@ int git_indexer_commit(git_indexer *idx, git_indexer_progress *stats)
 
 	/* Write out the object names (SHA-1 hashes) */
 	git_vector_foreach(&idx->objects, i, entry) {
-		git_filebuf_write(&index_file, &entry->oid, sizeof(git_oid));
+		git_filebuf_write(&index_file, &entry->oid.id, GIT_OID_RAWSZ);
 	}
 
 	/* Write out the CRC32 values */
diff --git a/src/libgit2/iterator.c b/src/libgit2/iterator.c
index 15bb63d..bc6f766 100644
--- a/src/libgit2/iterator.c
+++ b/src/libgit2/iterator.c
@@ -613,7 +613,7 @@ GIT_INLINE(int) tree_iterator_frame_push_neighbors(
 			break;
 
 		if ((error = git_tree_lookup(&tree,
-			iter->base.repo, entry->tree_entry->oid)) < 0)
+			iter->base.repo, &entry->tree_entry->oid)) < 0)
 			break;
 
 		if (git_vector_insert(&parent_frame->similar_trees, tree) < 0)
@@ -659,7 +659,7 @@ GIT_INLINE(int) tree_iterator_frame_push(
 	int error;
 
 	if ((error = git_tree_lookup(&tree,
-			iter->base.repo, entry->tree_entry->oid)) < 0 ||
+			iter->base.repo, &entry->tree_entry->oid)) < 0 ||
 		(error = tree_iterator_frame_init(iter, tree, entry)) < 0)
 		goto done;
 
@@ -740,7 +740,7 @@ static void tree_iterator_set_current(
 
 	iter->entry.mode = tree_entry->attr;
 	iter->entry.path = iter->entry_path.ptr;
-	git_oid_cpy(&iter->entry.id, tree_entry->oid);
+	git_oid_cpy(&iter->entry.id, &tree_entry->oid);
 }
 
 static int tree_iterator_advance(const git_index_entry **out, git_iterator *i)
diff --git a/src/libgit2/midx.c b/src/libgit2/midx.c
index 0092601..67eab9a 100644
--- a/src/libgit2/midx.c
+++ b/src/libgit2/midx.c
@@ -115,7 +115,7 @@ static int midx_parse_oid_lookup(
 		struct git_midx_chunk *chunk_oid_lookup)
 {
 	uint32_t i;
-	git_oid *oid, *prev_oid, zero_oid = {{0}};
+	unsigned char *oid, *prev_oid, zero_oid[GIT_OID_RAWSZ] = {0};
 
 	if (chunk_oid_lookup->offset == 0)
 		return midx_error("missing OID Lookup chunk");
@@ -124,10 +124,10 @@ static int midx_parse_oid_lookup(
 	if (chunk_oid_lookup->length != idx->num_objects * GIT_OID_RAWSZ)
 		return midx_error("OID Lookup chunk has wrong length");
 
-	idx->oid_lookup = oid = (git_oid *)(data + chunk_oid_lookup->offset);
-	prev_oid = &zero_oid;
-	for (i = 0; i < idx->num_objects; ++i, ++oid) {
-		if (git_oid_cmp(prev_oid, oid) >= 0)
+	idx->oid_lookup = oid = (unsigned char *)(data + chunk_oid_lookup->offset);
+	prev_oid = zero_oid;
+	for (i = 0; i < idx->num_objects; ++i, oid += GIT_OID_RAWSZ) {
+		if (git_oid_raw_cmp(prev_oid, oid) >= 0)
 			return midx_error("OID Lookup index is non-monotonic");
 		prev_oid = oid;
 	}
@@ -179,7 +179,6 @@ int git_midx_parse(
 	uint32_t i;
 	off64_t last_chunk_offset, chunk_offset, trailer_offset;
 	size_t checksum_size;
-	unsigned char checksum[GIT_HASH_SHA1_SIZE];
 	int error;
 	struct git_midx_chunk chunk_packfile_names = {0},
 					 chunk_oid_fanout = {0},
@@ -217,11 +216,6 @@ int git_midx_parse(
 		return midx_error("wrong index size");
 	memcpy(idx->checksum, data + trailer_offset, checksum_size);
 
-	if (git_hash_buf(checksum, data, (size_t)trailer_offset, GIT_HASH_ALGORITHM_SHA1) < 0)
-		return midx_error("could not calculate signature");
-	if (memcmp(checksum, idx->checksum, checksum_size) != 0)
-		return midx_error("index signature mismatch");
-
 	chunk_hdr = data + sizeof(struct git_midx_header);
 	last_chunk = NULL;
 	for (i = 0; i < hdr->chunks; ++i, chunk_hdr += 12) {
@@ -389,7 +383,7 @@ int git_midx_entry_find(
 	int pos, found = 0;
 	size_t pack_index;
 	uint32_t hi, lo;
-	const git_oid *current = NULL;
+	unsigned char *current = NULL;
 	const unsigned char *object_offset;
 	off64_t offset;
 
@@ -403,26 +397,25 @@ int git_midx_entry_find(
 	if (pos >= 0) {
 		/* An object matching exactly the oid was found */
 		found = 1;
-		current = idx->oid_lookup + pos;
+		current = idx->oid_lookup + (pos * GIT_OID_RAWSZ);
 	} else {
 		/* No object was found */
 		/* pos refers to the object with the "closest" oid to short_oid */
 		pos = -1 - pos;
 		if (pos < (int)idx->num_objects) {
-			current = idx->oid_lookup + pos;
+			current = idx->oid_lookup + (pos * GIT_OID_RAWSZ);
 
-			if (!git_oid_ncmp(short_oid, current, len))
+			if (!git_oid_raw_ncmp(short_oid->id, current, len))
 				found = 1;
 		}
 	}
 
 	if (found && len != GIT_OID_HEXSZ && pos + 1 < (int)idx->num_objects) {
 		/* Check for ambiguousity */
-		const git_oid *next = current + 1;
+		const unsigned char *next = current + GIT_OID_RAWSZ;
 
-		if (!git_oid_ncmp(short_oid, next, len)) {
+		if (!git_oid_raw_ncmp(short_oid->id, next, len))
 			found = 2;
-		}
 	}
 
 	if (!found)
@@ -432,8 +425,8 @@ int git_midx_entry_find(
 
 	object_offset = idx->object_offsets + pos * 8;
 	offset = ntohl(*((uint32_t *)(object_offset + 4)));
-	if (offset & 0x80000000) {
-		uint32_t object_large_offsets_pos = offset & 0x7fffffff;
+	if (idx->object_large_offsets && offset & 0x80000000) {
+		uint32_t object_large_offsets_pos = (uint32_t) (offset ^ 0x80000000);
 		const unsigned char *object_large_offsets_index = idx->object_large_offsets;
 
 		/* Make sure we're not being sent out of bounds */
@@ -450,7 +443,7 @@ int git_midx_entry_find(
 		return midx_error("invalid index into the packfile names table");
 	e->pack_index = pack_index;
 	e->offset = offset;
-	git_oid_cpy(&e->sha1, current);
+	git_oid_fromraw(&e->sha1, current);
 	return 0;
 }
 
@@ -459,13 +452,17 @@ int git_midx_foreach_entry(
 		git_odb_foreach_cb cb,
 		void *data)
 {
+	git_oid oid;
 	size_t i;
 	int error;
 
 	GIT_ASSERT_ARG(idx);
 
 	for (i = 0; i < idx->num_objects; ++i) {
-		if ((error = cb(&idx->oid_lookup[i], data)) != 0)
+		if ((error = git_oid_fromraw(&oid, &idx->oid_lookup[i * GIT_OID_RAWSZ])) < 0)
+			return error;
+
+		if ((error = cb(&oid, data)) != 0)
 			return git_error_set_after_callback(error);
 	}
 
@@ -751,7 +748,7 @@ static int midx_write(
 
 	/* Fill the OID Lookup table. */
 	git_vector_foreach (&object_entries, i, entry) {
-		error = git_str_put(&oid_lookup, (const char *)&entry->sha1, sizeof(entry->sha1));
+		error = git_str_put(&oid_lookup, (char *)&entry->sha1.id, GIT_OID_RAWSZ);
 		if (error < 0)
 			goto cleanup;
 	}
diff --git a/src/libgit2/midx.h b/src/libgit2/midx.h
index 7dd851b..bcb0d9a 100644
--- a/src/libgit2/midx.h
+++ b/src/libgit2/midx.h
@@ -17,6 +17,7 @@
 #include "map.h"
 #include "mwindow.h"
 #include "odb.h"
+#include "oid.h"
 
 /*
  * A multi-pack-index file.
@@ -40,7 +41,7 @@ typedef struct git_midx_file {
 	uint32_t num_objects;
 
 	/* The OID Lookup table. */
-	git_oid *oid_lookup;
+	unsigned char *oid_lookup;
 
 	/* The Object Offsets table. Each entry has two 4-byte fields with the pack index and the offset. */
 	const unsigned char *object_offsets;
diff --git a/src/libgit2/oid.c b/src/libgit2/oid.c
index 19061e8..fb92174 100644
--- a/src/libgit2/oid.c
+++ b/src/libgit2/oid.c
@@ -187,8 +187,7 @@ int git_oid_fromraw(git_oid *out, const unsigned char *raw)
 
 int git_oid_cpy(git_oid *out, const git_oid *src)
 {
-	memcpy(out->id, src->id, sizeof(out->id));
-	return 0;
+	return git_oid_raw_cpy(out->id, src->id);
 }
 
 int git_oid_cmp(const git_oid *a, const git_oid *b)
@@ -203,25 +202,7 @@ int git_oid_equal(const git_oid *a, const git_oid *b)
 
 int git_oid_ncmp(const git_oid *oid_a, const git_oid *oid_b, size_t len)
 {
-	const unsigned char *a = oid_a->id;
-	const unsigned char *b = oid_b->id;
-
-	if (len > GIT_OID_HEXSZ)
-		len = GIT_OID_HEXSZ;
-
-	while (len > 1) {
-		if (*a != *b)
-			return 1;
-		a++;
-		b++;
-		len -= 2;
-	};
-
-	if (len)
-		if ((*a ^ *b) & 0xf0)
-			return 1;
-
-	return 0;
+	return git_oid_raw_ncmp(oid_a->id, oid_b->id, len);
 }
 
 int git_oid_strcmp(const git_oid *oid_a, const char *str)
diff --git a/src/libgit2/oid.h b/src/libgit2/oid.h
index 5baec33..abae9a4 100644
--- a/src/libgit2/oid.h
+++ b/src/libgit2/oid.h
@@ -25,11 +25,44 @@ extern const git_oid git_oid__empty_tree_sha1;
  */
 char *git_oid_allocfmt(const git_oid *id);
 
-GIT_INLINE(int) git_oid__hashcmp(const unsigned char *sha1, const unsigned char *sha2)
+GIT_INLINE(int) git_oid_raw_ncmp(
+	const unsigned char *sha1,
+	const unsigned char *sha2,
+	size_t len)
+{
+	if (len > GIT_OID_HEXSZ)
+		len = GIT_OID_HEXSZ;
+
+	while (len > 1) {
+		if (*sha1 != *sha2)
+			return 1;
+		sha1++;
+		sha2++;
+		len -= 2;
+	};
+
+	if (len)
+		if ((*sha1 ^ *sha2) & 0xf0)
+			return 1;
+
+	return 0;
+}
+
+GIT_INLINE(int) git_oid_raw_cmp(
+	const unsigned char *sha1,
+	const unsigned char *sha2)
 {
 	return memcmp(sha1, sha2, GIT_OID_RAWSZ);
 }
 
+GIT_INLINE(int) git_oid_raw_cpy(
+	unsigned char *dst,
+	const unsigned char *src)
+{
+	memcpy(dst, src, GIT_OID_RAWSZ);
+	return 0;
+}
+
 /*
  * Compare two oid structures.
  *
@@ -39,7 +72,7 @@ GIT_INLINE(int) git_oid__hashcmp(const unsigned char *sha1, const unsigned char 
  */
 GIT_INLINE(int) git_oid__cmp(const git_oid *a, const git_oid *b)
 {
-	return git_oid__hashcmp(a->id, b->id);
+	return git_oid_raw_cmp(a->id, b->id);
 }
 
 GIT_INLINE(void) git_oid__cpy_prefix(
diff --git a/src/libgit2/oidmap.c b/src/libgit2/oidmap.c
index 0ae8bf3..eaf9fa0 100644
--- a/src/libgit2/oidmap.c
+++ b/src/libgit2/oidmap.c
@@ -19,7 +19,7 @@ __KHASH_TYPE(oid, const git_oid *, void *)
 GIT_INLINE(khint_t) git_oidmap_hash(const git_oid *oid)
 {
 	khint_t h;
-	memcpy(&h, oid, sizeof(khint_t));
+	memcpy(&h, oid->id, sizeof(khint_t));
 	return h;
 }
 
diff --git a/src/libgit2/pack.c b/src/libgit2/pack.c
index 5c0cba7..16fe378 100644
--- a/src/libgit2/pack.c
+++ b/src/libgit2/pack.c
@@ -1001,13 +1001,14 @@ int get_delta_base(
 		base_offset = delta_obj_offset - unsigned_base_offset;
 		*curpos += used;
 	} else if (type == GIT_OBJECT_REF_DELTA) {
+		git_oid base_oid;
+		git_oid_fromraw(&base_oid, base_info);
+
 		/* If we have the cooperative cache, search in it first */
 		if (p->has_cache) {
 			struct git_pack_entry *entry;
-			git_oid oid;
 
-			git_oid_fromraw(&oid, base_info);
-			if ((entry = git_oidmap_get(p->idx_cache, &oid)) != NULL) {
+			if ((entry = git_oidmap_get(p->idx_cache, &base_oid)) != NULL) {
 				if (entry->offset == 0)
 					return packfile_error("delta offset is zero");
 
@@ -1024,7 +1025,7 @@ int get_delta_base(
 		}
 
 		/* The base entry _must_ be in the same pack */
-		if (pack_entry_find_offset(&base_offset, &unused, p, (git_oid *)base_info, GIT_OID_HEXSZ) < 0)
+		if (pack_entry_find_offset(&base_offset, &unused, p, &base_oid, GIT_OID_HEXSZ) < 0)
 			return packfile_error("base entry delta is not in the same pack");
 		*curpos += 20;
 	} else
@@ -1082,7 +1083,7 @@ static int packfile_open_locked(struct git_pack_file *p)
 {
 	struct stat st;
 	struct git_pack_header hdr;
-	git_oid sha1;
+	unsigned char sha1[GIT_OID_RAWSZ];
 	unsigned char *idx_sha1;
 
 	if (pack_index_open_locked(p) < 0)
@@ -1130,12 +1131,12 @@ static int packfile_open_locked(struct git_pack_file *p)
 
 	/* Verify the pack matches its index. */
 	if (p->num_objects != ntohl(hdr.hdr_entries) ||
-		p_pread(p->mwf.fd, sha1.id, GIT_OID_RAWSZ, p->mwf.size - GIT_OID_RAWSZ) < 0)
+	    p_pread(p->mwf.fd, sha1, GIT_OID_RAWSZ, p->mwf.size - GIT_OID_RAWSZ) < 0)
 		goto cleanup;
 
 	idx_sha1 = ((unsigned char *)p->index_map.data) + p->index_map.len - 40;
 
-	if (git_oid__cmp(&sha1, (git_oid *)idx_sha1) != 0)
+	if (git_oid_raw_cmp(sha1, idx_sha1) != 0)
 		goto cleanup;
 
 	if (git_mwindow_file_register(&p->mwf) < 0)
@@ -1340,10 +1341,14 @@ int git_pack_foreach_entry(
 		}
 
 		git_vector_free(&offsets);
-		p->oids = (git_oid **)git_vector_detach(NULL, NULL, &oids);
+		p->oids = (unsigned char **)git_vector_detach(NULL, NULL, &oids);
 	}
 
-	/* We need to copy the OIDs to another array before we relinquish the lock to avoid races. */
+	/*
+	 * We need to copy the OIDs to another array before we
+	 * relinquish the lock to avoid races.  We can also take
+	 * this opportunity to put them into normal form.
+	 */
 	git_array_init_to_size(oids, p->num_objects);
 	if (!oids.ptr) {
 		git_mutex_unlock(&p->lock);
@@ -1357,7 +1362,7 @@ int git_pack_foreach_entry(
 			git_array_clear(oids);
 			GIT_ERROR_CHECK_ALLOC(oid);
 		}
-		git_oid_cpy(oid, p->oids[i]);
+		git_oid_fromraw(oid, p->oids[i]);
 	}
 
 	git_mutex_unlock(&p->lock);
@@ -1380,7 +1385,7 @@ int git_pack_foreach_entry_offset(
 {
 	const unsigned char *index;
 	off64_t current_offset;
-	const git_oid *current_oid;
+	git_oid current_oid;
 	uint32_t i;
 	int error = 0;
 
@@ -1422,8 +1427,9 @@ int git_pack_foreach_entry_offset(
 				current_offset = (((off64_t)ntohl(*((uint32_t *)(large_offset_ptr + 0)))) << 32) |
 						ntohl(*((uint32_t *)(large_offset_ptr + 4)));
 			}
-			current_oid = (const git_oid *)(index + 20 * i);
-			if ((error = cb(current_oid, current_offset, data)) != 0) {
+
+			git_oid_fromraw(&current_oid, (index + 20 * i));
+			if ((error = cb(&current_oid, current_offset, data)) != 0) {
 				error = git_error_set_after_callback(error);
 				goto cleanup;
 			}
@@ -1431,8 +1437,8 @@ int git_pack_foreach_entry_offset(
 	} else {
 		for (i = 0; i < p->num_objects; i++) {
 			current_offset = ntohl(*(const uint32_t *)(index + 24 * i));
-			current_oid = (const git_oid *)(index + 24 * i + 4);
-			if ((error = cb(current_oid, current_offset, data)) != 0) {
+			git_oid_fromraw(&current_oid, (index + 24 * i + 4));
+			if ((error = cb(&current_oid, current_offset, data)) != 0) {
 				error = git_error_set_after_callback(error);
 				goto cleanup;
 			}
@@ -1451,7 +1457,7 @@ int git_pack__lookup_sha1(const void *oid_lookup_table, size_t stride, unsigned 
 
 	while (lo < hi) {
 		unsigned mi = (lo + hi) / 2;
-		int cmp = git_oid__hashcmp(base + mi * stride, oid_prefix);
+		int cmp = git_oid_raw_cmp(base + mi * stride, oid_prefix);
 
 		if (!cmp)
 			return mi;
@@ -1530,7 +1536,7 @@ static int pack_entry_find_offset(
 		if (pos < (int)p->num_objects) {
 			current = index + pos * stride;
 
-			if (!git_oid_ncmp(short_oid, (const git_oid *)current, len))
+			if (!git_oid_raw_ncmp(short_oid->id, current, len))
 				found = 1;
 		}
 	}
@@ -1539,7 +1545,7 @@ static int pack_entry_find_offset(
 		/* Check for ambiguousity */
 		const unsigned char *next = current + stride;
 
-		if (!git_oid_ncmp(short_oid, (const git_oid *)next, len)) {
+		if (!git_oid_raw_ncmp(short_oid->id, next, len)) {
 			found = 2;
 		}
 	}
diff --git a/src/libgit2/pack.h b/src/libgit2/pack.h
index bf279c6..f87249b 100644
--- a/src/libgit2/pack.h
+++ b/src/libgit2/pack.h
@@ -19,6 +19,7 @@
 #include "offmap.h"
 #include "oidmap.h"
 #include "zstream.h"
+#include "oid.h"
 
 /**
  * Function type for callbacks from git_pack_foreach_entry_offset.
@@ -104,7 +105,7 @@ struct git_pack_file {
 	git_time_t mtime;
 	unsigned pack_local:1, pack_keep:1, has_cache:1;
 	git_oidmap *idx_cache;
-	git_oid **oids;
+	unsigned char **oids;
 
 	git_pack_cache bases; /* delta base cache */
 
diff --git a/src/libgit2/refdb_fs.c b/src/libgit2/refdb_fs.c
index ef85016..0f49b16 100644
--- a/src/libgit2/refdb_fs.c
+++ b/src/libgit2/refdb_fs.c
@@ -740,7 +740,7 @@ static int packed_lookup(
 			return 0;
 		}
 	}
-	return GIT_ENOTFOUND;
+	return ref_error_notfound(ref_name);
 
 parse_failed:
 	git_error_set(GIT_ERROR_REFERENCE, "corrupted packed references file");
diff --git a/src/libgit2/remote.c b/src/libgit2/remote.c
index 1a79faa..3d05937 100644
--- a/src/libgit2/remote.c
+++ b/src/libgit2/remote.c
@@ -1830,7 +1830,7 @@ static int update_one_tip(
 	}
 
 	if (error == GIT_ENOTFOUND) {
-		memset(&old, 0, GIT_OID_RAWSZ);
+		memset(&old, 0, sizeof(git_oid));
 		error = 0;
 
 		if (autotag && (error = git_vector_insert(update_heads, head)) < 0)
diff --git a/src/libgit2/tree-cache.c b/src/libgit2/tree-cache.c
index 0977c92..cd69e7b 100644
--- a/src/libgit2/tree-cache.c
+++ b/src/libgit2/tree-cache.c
@@ -263,7 +263,7 @@ static void write_tree(git_str *out, git_tree_cache *tree)
 	git_str_printf(out, "%s%c%"PRIdZ" %"PRIuZ"\n", tree->name, 0, tree->entry_count, tree->children_count);
 
 	if (tree->entry_count != -1)
-		git_str_put(out, (const char *) &tree->oid, GIT_OID_RAWSZ);
+		git_str_put(out, (char *)&tree->oid.id, GIT_OID_RAWSZ);
 
 	for (i = 0; i < tree->children_count; i++)
 		write_tree(out, tree->children[i]);
diff --git a/src/libgit2/tree.c b/src/libgit2/tree.c
index a1545dc..a5371fd 100644
--- a/src/libgit2/tree.c
+++ b/src/libgit2/tree.c
@@ -82,6 +82,7 @@ int git_tree_entry_cmp(const git_tree_entry *e1, const git_tree_entry *e2)
 static git_tree_entry *alloc_entry(const char *filename, size_t filename_len, const git_oid *id)
 {
 	git_tree_entry *entry = NULL;
+	char *filename_ptr;
 	size_t tree_len;
 
 	TREE_ENTRY_CHECK_NAMELEN(filename_len);
@@ -95,21 +96,13 @@ static git_tree_entry *alloc_entry(const char *filename, size_t filename_len, co
 	if (!entry)
 		return NULL;
 
-	{
-		char *filename_ptr;
-		void *id_ptr;
-
-		filename_ptr = ((char *) entry) + sizeof(git_tree_entry);
-		memcpy(filename_ptr, filename, filename_len);
-		entry->filename = filename_ptr;
-
-		id_ptr = filename_ptr + filename_len + 1;
-		git_oid_cpy(id_ptr, id);
-		entry->oid = id_ptr;
-	}
-
+	filename_ptr = ((char *) entry) + sizeof(git_tree_entry);
+	memcpy(filename_ptr, filename, filename_len);
+	entry->filename = filename_ptr;
 	entry->filename_len = (uint16_t)filename_len;
 
+	git_oid_cpy(&entry->oid, id);
+
 	return entry;
 }
 
@@ -231,7 +224,7 @@ int git_tree_entry_dup(git_tree_entry **dest, const git_tree_entry *source)
 
 	GIT_ASSERT_ARG(source);
 
-	cpy = alloc_entry(source->filename, source->filename_len, source->oid);
+	cpy = alloc_entry(source->filename, source->filename_len, &source->oid);
 	if (cpy == NULL)
 		return -1;
 
@@ -269,7 +262,7 @@ const char *git_tree_entry_name(const git_tree_entry *entry)
 const git_oid *git_tree_entry_id(const git_tree_entry *entry)
 {
 	GIT_ASSERT_ARG_WITH_RETVAL(entry, NULL);
-	return entry->oid;
+	return &entry->oid;
 }
 
 git_object_t git_tree_entry_type(const git_tree_entry *entry)
@@ -292,7 +285,7 @@ int git_tree_entry_to_object(
 	GIT_ASSERT_ARG(entry);
 	GIT_ASSERT_ARG(object_out);
 
-	return git_object_lookup(object_out, repo, entry->oid, GIT_OBJECT_ANY);
+	return git_object_lookup(object_out, repo, &entry->oid, GIT_OBJECT_ANY);
 }
 
 static const git_tree_entry *entry_fromname(
@@ -331,7 +324,7 @@ const git_tree_entry *git_tree_entry_byid(
 	GIT_ASSERT_ARG_WITH_RETVAL(tree, NULL);
 
 	git_array_foreach(tree->entries, i, e) {
-		if (memcmp(&e->oid->id, &id->id, sizeof(id->id)) == 0)
+		if (git_oid_equal(&e->oid, id))
 			return e;
 	}
 
@@ -432,7 +425,7 @@ int git_tree__parse_raw(void *_tree, const char *data, size_t size)
 			entry->attr = attr;
 			entry->filename_len = (uint16_t)filename_len;
 			entry->filename = buffer;
-			entry->oid = (git_oid *) ((char *) buffer + filename_len + 1);
+			git_oid_fromraw(&entry->oid, ((unsigned char *) buffer + filename_len + 1));
 		}
 
 		buffer += filename_len + 1;
@@ -536,7 +529,7 @@ static int git_treebuilder__write_with_buffer(
 
 		git_str_printf(buf, "%o ", entry->attr);
 		git_str_put(buf, entry->filename, entry->filename_len + 1);
-		git_str_put(buf, (char *)entry->oid->id, GIT_OID_RAWSZ);
+		git_str_put(buf, (char *)entry->oid.id, GIT_OID_RAWSZ);
 
 		if (git_str_oom(buf)) {
 			error = -1;
@@ -765,7 +758,7 @@ int git_treebuilder_new(
 		git_array_foreach(source->entries, i, entry_src) {
 			if (append_entry(
 				bld, entry_src->filename,
-				entry_src->oid,
+				&entry_src->oid,
 				entry_src->attr,
 				false) < 0)
 				goto on_error;
@@ -798,7 +791,7 @@ int git_treebuilder_insert(
 		return error;
 
 	if ((entry = git_strmap_get(bld->map, filename)) != NULL) {
-		git_oid_cpy((git_oid *) entry->oid, id);
+		git_oid_cpy(&entry->oid, id);
 	} else {
 		entry = alloc_entry(filename, strlen(filename), id);
 		GIT_ERROR_CHECK_ALLOC(entry);
@@ -954,7 +947,7 @@ int git_tree_entry_bypath(
 		return git_tree_entry_dup(entry_out, entry);
 	}
 
-	if (git_tree_lookup(&subtree, root->object.repo, entry->oid) < 0)
+	if (git_tree_lookup(&subtree, root->object.repo, &entry->oid) < 0)
 		return -1;
 
 	error = git_tree_entry_bypath(
@@ -995,7 +988,7 @@ static int tree_walk(
 			git_tree *subtree;
 			size_t path_len = git_str_len(path);
 
-			error = git_tree_lookup(&subtree, tree->object.repo, entry->oid);
+			error = git_tree_lookup(&subtree, tree->object.repo, &entry->oid);
 			if (error < 0)
 				break;
 
diff --git a/src/libgit2/tree.h b/src/libgit2/tree.h
index 6bd9ed6..0dd963f 100644
--- a/src/libgit2/tree.h
+++ b/src/libgit2/tree.h
@@ -19,7 +19,7 @@
 struct git_tree_entry {
 	uint16_t attr;
 	uint16_t filename_len;
-	const git_oid *oid;
+	git_oid oid;
 	const char *filename;
 };
 
diff --git a/tests/libgit2/iterator/tree.c b/tests/libgit2/iterator/tree.c
index 4145c8d..06a920a 100644
--- a/tests/libgit2/iterator/tree.c
+++ b/tests/libgit2/iterator/tree.c
@@ -268,7 +268,7 @@ static void check_tree_entry(
 
 	cl_git_pass(git_iterator_current_tree_entry(&te, i));
 	cl_assert(te);
-	cl_assert(git_oid_streq(te->oid, oid) == 0);
+	cl_assert(git_oid_streq(&te->oid, oid) == 0);
 
 	cl_git_pass(git_iterator_current(&ie, i));
 
diff --git a/tests/libgit2/object/raw/hash.c b/tests/libgit2/object/raw/hash.c
index 5a3e818..8f22fe0 100644
--- a/tests/libgit2/object/raw/hash.c
+++ b/tests/libgit2/object/raw/hash.c
@@ -24,20 +24,23 @@ static char *bye_text = "bye world\n";
 void test_object_raw_hash__hash_by_blocks(void)
 {
 	git_hash_ctx ctx;
+	unsigned char hash[GIT_HASH_SHA1_SIZE];
 	git_oid id1, id2;
 
 	cl_git_pass(git_hash_ctx_init(&ctx, GIT_HASH_ALGORITHM_SHA1));
 
 	/* should already be init'd */
 	cl_git_pass(git_hash_update(&ctx, hello_text, strlen(hello_text)));
-	cl_git_pass(git_hash_final(id2.id, &ctx));
+	cl_git_pass(git_hash_final(hash, &ctx));
+	cl_git_pass(git_oid_fromraw(&id2, hash));
 	cl_git_pass(git_oid_fromstr(&id1, hello_id));
 	cl_assert(git_oid_cmp(&id1, &id2) == 0);
 
 	/* reinit should permit reuse */
 	cl_git_pass(git_hash_init(&ctx));
 	cl_git_pass(git_hash_update(&ctx, bye_text, strlen(bye_text)));
-	cl_git_pass(git_hash_final(id2.id, &ctx));
+	cl_git_pass(git_hash_final(hash, &ctx));
+	cl_git_pass(git_oid_fromraw(&id2, hash));
 	cl_git_pass(git_oid_fromstr(&id1, bye_id));
 	cl_assert(git_oid_cmp(&id1, &id2) == 0);
 
@@ -47,9 +50,11 @@ void test_object_raw_hash__hash_by_blocks(void)
 void test_object_raw_hash__hash_buffer_in_single_call(void)
 {
 	git_oid id1, id2;
+	unsigned char hash[GIT_HASH_SHA1_SIZE];
 
 	cl_git_pass(git_oid_fromstr(&id1, hello_id));
-	git_hash_buf(id2.id, hello_text, strlen(hello_text), GIT_HASH_ALGORITHM_SHA1);
+	cl_git_pass(git_hash_buf(hash, hello_text, strlen(hello_text), GIT_HASH_ALGORITHM_SHA1));
+	cl_git_pass(git_oid_fromraw(&id2, hash));
 	cl_assert(git_oid_cmp(&id1, &id2) == 0);
 }
 
diff --git a/tests/libgit2/object/raw/short.c b/tests/libgit2/object/raw/short.c
index e8d2cf5..cc2b5f6 100644
--- a/tests/libgit2/object/raw/short.c
+++ b/tests/libgit2/object/raw/short.c
@@ -28,12 +28,15 @@ static int insert_sequential_oids(
 	int i, min_len = 0;
 	char numbuf[16];
 	git_oid oid;
+	unsigned char hashbuf[GIT_HASH_SHA1_SIZE];
 	char **oids = git__calloc(n, sizeof(char *));
 	cl_assert(oids != NULL);
 
 	for (i = 0; i < n; ++i) {
 		p_snprintf(numbuf, sizeof(numbuf), "%u", (unsigned int)i);
-		git_hash_buf(oid.id, numbuf, strlen(numbuf), GIT_HASH_ALGORITHM_SHA1);
+		git_hash_buf(hashbuf, numbuf, strlen(numbuf), GIT_HASH_ALGORITHM_SHA1);
+
+		git_oid_fromraw(&oid, hashbuf);
 
 		oids[i] = git__malloc(GIT_OID_HEXSZ + 1);
 		cl_assert(oids[i]);
diff --git a/tests/libgit2/object/tree/parse.c b/tests/libgit2/object/tree/parse.c
index 9d76a74..4e871dc 100644
--- a/tests/libgit2/object/tree/parse.c
+++ b/tests/libgit2/object/tree/parse.c
@@ -40,7 +40,7 @@ static void assert_tree_parses(const char *data, size_t datalen,
 		cl_assert(entry = git_tree_entry_byname(tree, expected->filename));
 		cl_assert_equal_s(expected->filename, entry->filename);
 		cl_assert_equal_i(expected->attr, entry->attr);
-		cl_assert_equal_oid(&oid, entry->oid);
+		cl_assert_equal_oid(&oid, &entry->oid);
 	}
 
 	git_object_free(&tree->object);
diff --git a/tests/libgit2/pack/packbuilder.c b/tests/libgit2/pack/packbuilder.c
index f235798..0889f46 100644
--- a/tests/libgit2/pack/packbuilder.c
+++ b/tests/libgit2/pack/packbuilder.c
@@ -68,7 +68,7 @@ static void seed_packbuilder(void)
 	cl_git_pass(git_revwalk_push_ref(_revwalker, "HEAD"));
 
 	while (git_revwalk_next(&oid, _revwalker) == 0) {
-		o = git__malloc(GIT_OID_RAWSZ);
+		o = git__malloc(sizeof(git_oid));
 		cl_assert(o != NULL);
 		git_oid_cpy(o, &oid);
 		cl_git_pass(git_vector_insert(&_commits, o));
diff --git a/tests/libgit2/refs/revparse.c b/tests/libgit2/refs/revparse.c
index 0bd2ae5..56af3c9 100644
--- a/tests/libgit2/refs/revparse.c
+++ b/tests/libgit2/refs/revparse.c
@@ -399,8 +399,6 @@ void test_refs_revparse__date(void)
 	 * a65fedf HEAD@{1335806603 -0900}: commit:
 	 * be3563a HEAD@{1335806563 -0700}: clone: from /Users/ben/src/libgit2/tests/resour
 	 */
-	test_object("HEAD@{10 years ago}", "be3563ae3f795b2b4353bcce3a527ad0a4f7f644");
-
 	test_object("HEAD@{1 second}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
 	test_object("HEAD@{1 second ago}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");
 	test_object("HEAD@{2 days ago}", "a65fedf39aefe402d3bb6e24df4d4f5fe4547750");