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https://git.proxmox.com/git/libgit2
synced 2025-05-06 01:45:11 +00:00
b4f5bb0747
This implements the basis for diff rename and copy detection, although it is based on simple SHA comparison right now instead of using a matching algortihm. Just as `git_diff_merge` can be used as a post-pass on diffs to emulate certain command line behaviors, there is a new API `git_diff_detect` which will update a diff list in-place, adjusting some deltas to RENAMED or COPIED state (and also, eventually, splitting MODIFIED deltas where the change is too large into DELETED/ADDED pairs). This also adds a new test repo that will hold rename/copy/split scenarios. Right now, it just has exact-match rename and copy, but the tests are written to use tree diffs, so we should be able to add new test scenarios easily without breaking tests.
143 lines
3.4 KiB
C
143 lines
3.4 KiB
C
#include "clar_libgit2.h"
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#include "diff_helpers.h"
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static git_repository *g_repo = NULL;
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void test_diff_index__initialize(void)
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{
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g_repo = cl_git_sandbox_init("status");
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}
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void test_diff_index__cleanup(void)
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{
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cl_git_sandbox_cleanup();
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}
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void test_diff_index__0(void)
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{
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/* grabbed a couple of commit oids from the history of the attr repo */
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const char *a_commit = "26a125ee1bf"; /* the current HEAD */
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const char *b_commit = "0017bd4ab1ec3"; /* the start */
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git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
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git_tree *b = resolve_commit_oid_to_tree(g_repo, b_commit);
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git_diff_options opts = {0};
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git_diff_list *diff = NULL;
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diff_expects exp;
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cl_assert(a);
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cl_assert(b);
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opts.context_lines = 1;
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opts.interhunk_lines = 1;
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memset(&exp, 0, sizeof(exp));
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cl_git_pass(git_diff_index_to_tree(g_repo, &opts, a, &diff));
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cl_git_pass(git_diff_foreach(
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diff, &exp, diff_file_fn, diff_hunk_fn, diff_line_fn));
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/* to generate these values:
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* - cd to tests/resources/status,
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* - mv .gitted .git
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* - git diff --name-status --cached 26a125ee1bf
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* - git diff -U1 --cached 26a125ee1bf
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* - mv .git .gitted
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*/
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cl_assert_equal_i(8, exp.files);
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cl_assert_equal_i(3, exp.file_status[GIT_DELTA_ADDED]);
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cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
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cl_assert_equal_i(3, exp.file_status[GIT_DELTA_MODIFIED]);
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cl_assert_equal_i(8, exp.hunks);
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cl_assert_equal_i(11, exp.lines);
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cl_assert_equal_i(3, exp.line_ctxt);
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cl_assert_equal_i(6, exp.line_adds);
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cl_assert_equal_i(2, exp.line_dels);
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git_diff_list_free(diff);
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diff = NULL;
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memset(&exp, 0, sizeof(exp));
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cl_git_pass(git_diff_index_to_tree(g_repo, &opts, b, &diff));
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cl_git_pass(git_diff_foreach(
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diff, &exp, diff_file_fn, diff_hunk_fn, diff_line_fn));
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/* to generate these values:
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* - cd to tests/resources/status,
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* - mv .gitted .git
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* - git diff --name-status --cached 0017bd4ab1ec3
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* - git diff -U1 --cached 0017bd4ab1ec3
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* - mv .git .gitted
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*/
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cl_assert_equal_i(12, exp.files);
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cl_assert_equal_i(7, exp.file_status[GIT_DELTA_ADDED]);
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cl_assert_equal_i(2, exp.file_status[GIT_DELTA_DELETED]);
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cl_assert_equal_i(3, exp.file_status[GIT_DELTA_MODIFIED]);
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cl_assert_equal_i(12, exp.hunks);
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cl_assert_equal_i(16, exp.lines);
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cl_assert_equal_i(3, exp.line_ctxt);
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cl_assert_equal_i(11, exp.line_adds);
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cl_assert_equal_i(2, exp.line_dels);
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git_diff_list_free(diff);
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diff = NULL;
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git_tree_free(a);
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git_tree_free(b);
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}
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static int diff_stop_after_2_files(
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void *cb_data,
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const git_diff_delta *delta,
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float progress)
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{
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diff_expects *e = cb_data;
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GIT_UNUSED(progress);
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GIT_UNUSED(delta);
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e->files++;
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return (e->files == 2);
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}
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void test_diff_index__1(void)
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{
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/* grabbed a couple of commit oids from the history of the attr repo */
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const char *a_commit = "26a125ee1bf"; /* the current HEAD */
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const char *b_commit = "0017bd4ab1ec3"; /* the start */
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git_tree *a = resolve_commit_oid_to_tree(g_repo, a_commit);
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git_tree *b = resolve_commit_oid_to_tree(g_repo, b_commit);
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git_diff_options opts = {0};
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git_diff_list *diff = NULL;
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diff_expects exp;
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cl_assert(a);
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cl_assert(b);
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opts.context_lines = 1;
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opts.interhunk_lines = 1;
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memset(&exp, 0, sizeof(exp));
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cl_git_pass(git_diff_index_to_tree(g_repo, &opts, a, &diff));
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cl_assert_equal_i(
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GIT_EUSER,
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git_diff_foreach(diff, &exp, diff_stop_after_2_files, NULL, NULL)
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);
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cl_assert_equal_i(2, exp.files);
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git_diff_list_free(diff);
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diff = NULL;
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git_tree_free(a);
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git_tree_free(b);
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}
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