mirror of
https://git.proxmox.com/git/libgit2
synced 2025-05-03 16:06:02 +00:00
130 lines
2.9 KiB
C
130 lines
2.9 KiB
C
/* This test exercises the problem described in
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** https://github.com/libgit2/libgit2/pull/3568
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** where deleting a directory during a diff/status
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** operation can cause an access violation.
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**
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** The "test_diff_racediffiter__basic() test confirms
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** the normal operation of diff on the given repo.
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**
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** The "test_diff_racediffiter__racy_rmdir() test
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** uses the new diff progress callback to delete
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** a directory (after the initial readdir() and
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** before the directory itself is visited) causing
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** the recursion and iteration to fail.
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*/
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#include "clar_libgit2.h"
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#include "diff_helpers.h"
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#define ARRAY_LEN(a) (sizeof(a) / sizeof(a[0]))
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void test_diff_racediffiter__initialize(void)
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{
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}
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void test_diff_racediffiter__cleanup(void)
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{
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cl_git_sandbox_cleanup();
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}
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typedef struct
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{
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const char *path;
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git_delta_t t;
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} basic_payload;
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static int notify_cb__basic(
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const git_diff *diff_so_far,
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const git_diff_delta *delta_to_add,
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const char *matched_pathspec,
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void *payload)
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{
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basic_payload *exp = (basic_payload *)payload;
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basic_payload *e;
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GIT_UNUSED(diff_so_far);
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GIT_UNUSED(matched_pathspec);
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for (e = exp; e->path; e++) {
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if (strcmp(e->path, delta_to_add->new_file.path) == 0) {
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cl_assert_equal_i(e->t, delta_to_add->status);
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return 0;
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}
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}
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cl_assert(0);
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return GIT_ENOTFOUND;
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}
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void test_diff_racediffiter__basic(void)
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{
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git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
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git_repository *repo = cl_git_sandbox_init("diff");
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git_diff *diff;
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basic_payload exp_a[] = {
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{ "another.txt", GIT_DELTA_MODIFIED },
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{ "readme.txt", GIT_DELTA_MODIFIED },
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{ "zzzzz/", GIT_DELTA_IGNORED },
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{ NULL, 0 }
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};
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cl_must_pass(p_mkdir("diff/zzzzz", 0777));
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opts.flags |= GIT_DIFF_INCLUDE_IGNORED | GIT_DIFF_RECURSE_UNTRACKED_DIRS;
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opts.notify_cb = notify_cb__basic;
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opts.payload = exp_a;
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cl_git_pass(git_diff_index_to_workdir(&diff, repo, NULL, &opts));
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git_diff_free(diff);
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}
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typedef struct {
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bool first_time;
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const char *dir;
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basic_payload *basic_payload;
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} racy_payload;
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static int notify_cb__racy_rmdir(
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const git_diff *diff_so_far,
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const git_diff_delta *delta_to_add,
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const char *matched_pathspec,
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void *payload)
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{
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racy_payload *pay = (racy_payload *)payload;
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if (pay->first_time) {
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cl_must_pass(p_rmdir(pay->dir));
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pay->first_time = false;
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}
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return notify_cb__basic(diff_so_far, delta_to_add, matched_pathspec, pay->basic_payload);
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}
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void test_diff_racediffiter__racy(void)
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{
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git_diff_options opts = GIT_DIFF_OPTIONS_INIT;
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git_repository *repo = cl_git_sandbox_init("diff");
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git_diff *diff;
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basic_payload exp_a[] = {
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{ "another.txt", GIT_DELTA_MODIFIED },
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{ "readme.txt", GIT_DELTA_MODIFIED },
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{ NULL, 0 }
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};
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racy_payload pay = { true, "diff/zzzzz", exp_a };
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cl_must_pass(p_mkdir("diff/zzzzz", 0777));
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opts.flags |= GIT_DIFF_INCLUDE_IGNORED | GIT_DIFF_RECURSE_UNTRACKED_DIRS;
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opts.notify_cb = notify_cb__racy_rmdir;
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opts.payload = &pay;
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cl_git_pass(git_diff_index_to_workdir(&diff, repo, NULL, &opts));
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git_diff_free(diff);
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}
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