int git_object_lookup_bypath(
git_object **out,
const git_object *treeish,
const char *path,
git_otype type)
{
int error = -1;
git_tree *tree = NULL;
git_tree_entry *entry = NULL;
assert(out && treeish && path);
if ((error = git_object_peel((git_object**)&tree, treeish, GIT_OBJ_TREE)) < 0 ||
(error = git_tree_entry_bypath(&entry, tree, path)) < 0)
{
goto cleanup;
}
if (type != GIT_OBJ_ANY && git_tree_entry_type(entry) != type)
{
giterr_set(GITERR_OBJECT,
"object at path '%s' is not of the asked-for type %d",
path, type);
error = GIT_EINVALIDSPEC;
goto cleanup;
}
error = git_tree_entry_to_object(out, git_object_owner(treeish), entry);
cleanup:
git_tree_entry_free(entry);
git_tree_free(tree);
return error;
}
static VALUE rb_git_treeentry_fromC(const git_tree_entry *entry)
{
VALUE rb_entry;
VALUE type;
if (!entry)
return Qnil;
rb_entry = rb_hash_new();
rb_hash_aset(rb_entry, CSTR2SYM("name"), rugged_str_new2(git_tree_entry_name(entry), NULL));
rb_hash_aset(rb_entry, CSTR2SYM("oid"), rugged_create_oid(git_tree_entry_id(entry)));
rb_hash_aset(rb_entry, CSTR2SYM("filemode"), INT2FIX(git_tree_entry_filemode(entry)));
switch(git_tree_entry_type(entry)) {
case GIT_OBJ_TREE:
type = CSTR2SYM("tree");
break;
case GIT_OBJ_BLOB:
type = CSTR2SYM("blob");
break;
default:
type = Qnil;
break;
}
rb_hash_aset(rb_entry, CSTR2SYM("type"), type);
return rb_entry;
}
static int read_file_git(const char *repo_path, const char *name, void **out, size_t *outlen) {
int ret, retcode = -1;
git_repository *repo;
ret = git_repository_open_bare(&repo, repo_path);
if(check_lg2(ret, "opening repo"))
goto out;
git_object *master;
ret = git_revparse_single(&master, repo, "master");
if(check_lg2(ret, "getting master branch"))
goto out_repo;
if(git_object_type(master) != GIT_OBJ_COMMIT) {
debug("master is not a commit");
goto out_master;
}
git_tree *tree;
ret = git_commit_tree(&tree, (git_commit*)master);
if(check_lg2(ret, "getting tree from commit"))
goto out_master;
const git_tree_entry *entry = git_tree_entry_byname(tree, name);
if(!entry) {
debug("entry %s not found", name);
goto out_tree;
}
if(git_tree_entry_type(entry) != GIT_OBJ_BLOB) {
debug("entry is not a blob");
goto out_tree;
}
git_object *file;
ret = git_tree_entry_to_object(&file, repo, entry);
if(check_lg2(ret, "getting file from tree entry"))
goto out_tree;
const void *data = git_blob_rawcontent((git_blob*)file);
*outlen = git_blob_rawsize((git_blob*)file);
*out = malloc(*outlen);
memcpy(*out, data, *outlen);
retcode = 0;
git_object_free(file);
out_tree:
git_tree_free(tree);
out_master:
git_object_free(master);
out_repo:
git_repository_free(repo);
out:
return retcode;
}
static void assert_workdir_matches_tree(
git_repository *repo, const git_oid *id, const char *root, bool recurse)
{
git_object *obj;
git_tree *tree;
size_t i, max_i;
git_buf path = GIT_BUF_INIT;
if (!root)
root = git_repository_workdir(repo);
cl_assert(root);
cl_git_pass(git_object_lookup(&obj, repo, id, GIT_OBJ_ANY));
cl_git_pass(git_object_peel((git_object **)&tree, obj, GIT_OBJ_TREE));
git_object_free(obj);
max_i = git_tree_entrycount(tree);
for (i = 0; i < max_i; ++i) {
const git_tree_entry *te = git_tree_entry_byindex(tree, i);
cl_assert(te);
cl_git_pass(git_buf_joinpath(&path, root, git_tree_entry_name(te)));
switch (git_tree_entry_type(te)) {
case GIT_OBJ_COMMIT:
assert_dir_exists(path.ptr);
break;
case GIT_OBJ_TREE:
assert_dir_exists(path.ptr);
if (recurse)
assert_workdir_matches_tree(
repo, git_tree_entry_id(te), path.ptr, true);
break;
case GIT_OBJ_BLOB:
switch (git_tree_entry_filemode(te)) {
case GIT_FILEMODE_BLOB:
case GIT_FILEMODE_BLOB_EXECUTABLE:
assert_file_exists(path.ptr);
/* because of cross-platform, don't confirm exec bit yet */
break;
case GIT_FILEMODE_LINK:
cl_assert_(git_path_exists(path.ptr), path.ptr);
/* because of cross-platform, don't confirm link yet */
break;
default:
cl_assert(false); /* really?! */
}
break;
default:
cl_assert(false); /* really?!! */
}
}
git_tree_free(tree);
git_buf_free(&path);
}
PyObject *
TreeEntry_repr(TreeEntry *self)
{
char str[GIT_OID_HEXSZ + 1] = { 0 };
const char *typename;
typename = git_object_type2string(git_tree_entry_type(self->entry));
git_oid_fmt(str, git_tree_entry_id(self->entry));
return PyString_FromFormat("pygit2.TreeEntry('%s', %s, %s)", git_tree_entry_name(self->entry), typename, str);
}
static int rugged__treecount_cb(const char *root, const git_tree_entry *entry, void *data)
{
struct rugged_treecount_cb_payload *payload = data;
if (payload->limit >= 0 && payload->count >= payload->limit) {
return -1;
} else if(git_tree_entry_type(entry) == GIT_OBJ_TREE) {
return 0;
} else {
++(payload->count);
return 1;
}
}
/** Show each entry with its type, id and attributes */
static void show_tree(const git_tree *tree)
{
size_t i, max_i = (int)git_tree_entrycount(tree);
char oidstr[GIT_OID_HEXSZ + 1];
const git_tree_entry *te;
for (i = 0; i < max_i; ++i) {
te = git_tree_entry_byindex(tree, i);
git_oid_tostr(oidstr, sizeof(oidstr), git_tree_entry_id(te));
printf("%06o %s %s\t%s\n",
git_tree_entry_filemode(te),
git_object_type2string(git_tree_entry_type(te)),
oidstr, git_tree_entry_name(te));
}
}
static int
checksum_tree_callback (const char *root,
const git_tree_entry *entry,
void *data)
{
int iter_r = 1;
int tmp_r;
struct TreeWalkData *twdata = data;
git_otype otype = git_tree_entry_type (entry);
switch (otype)
{
case GIT_OBJ_TREE:
case GIT_OBJ_BLOB:
if (!checksum_object_id (twdata, git_tree_entry_id (entry),
twdata->error))
{
twdata->caught_error = TRUE;
return -1;
}
break;
case GIT_OBJ_COMMIT:
{
git_submodule *submod = NULL;
tmp_r = git_submodule_lookup (&submod, twdata->repo, git_tree_entry_name (entry));
if (!handle_libgit_ret (tmp_r, twdata->error))
goto out;
tmp_r = checksum_submodule (twdata, submod);
if (tmp_r != 0)
goto out;
git_submodule_free (submod);
}
break;
default:
g_assert_not_reached ();
}
iter_r = 0;
out:
if (iter_r > 0)
twdata->caught_error = TRUE;
return iter_r;
}
int
read_repo(const char *repo_name)
{
int i;
int r;
int n;
git_repository *repo;
git_reference *head;
git_oid oid;
git_commit *commit;
git_tree *tree;
git_tree_entry *tree_entry;
char out[41];
out[40] = '\0';
// opening the repository
r = git_repository_open(&repo, repo_name);
if (r)
printf("error in opening the repository\n");
printf("Opened the repository successfully.\n");
// obtaining the head
r = git_repository_head(&head, repo);
if (r)
printf("error in obtaining the head\n");
r = git_reference_name_to_oid(&oid, repo, git_reference_name(head));
if (r)
printf("error in obtaining the ref id of head\n");
printf("Obtained the head id %s\n", git_oid_tostr(out, 41, &oid));
// obtaining the commit from commit id
r = git_commit_lookup(&commit, repo, &oid);
if (r)
printf("error in obtaining the commit from oid\n");
printf("Obtained the commit.\n");
// obtaining the tree id from the commit
oid = *git_commit_tree_oid(commit);
// get the tree
r = git_tree_lookup(&tree, repo, &oid);
if (r)
printf("error in looking up the tree for oid\n");
printf("Lookup for tree of oid successful.\n");
n = git_tree_entrycount(tree);
for (i=0; i<n; i++) {
tree_entry = git_tree_entry_byindex(tree, i);
printf("entry >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> %s %s\n", git_tree_entry_name(tree_entry), git_object_type2string(git_tree_entry_type(tree_entry)));
}
git_repository_free(repo);
return 0;
}
int CRepositoryBrowser::ReadTree(CShadowFilesTree * treeroot, const CString& root)
{
CWaitCursor wait;
CAutoRepository repository(g_Git.GetGitRepository());
if (!repository)
{
MessageBox(CGit::GetLibGit2LastErr(_T("Could not open repository.")), _T("TortoiseGit"), MB_ICONERROR);
return -1;
}
if (m_sRevision == _T("HEAD"))
{
int ret = git_repository_head_unborn(repository);
if (ret == 1) // is orphan
return ret;
else if (ret != 0)
{
MessageBox(g_Git.GetLibGit2LastErr(_T("Could not check HEAD.")), _T("TortoiseGit"), MB_ICONERROR);
return ret;
}
}
CGitHash hash;
if (CGit::GetHash(repository, hash, m_sRevision))
{
MessageBox(CGit::GetLibGit2LastErr(_T("Could not get hash of ") + m_sRevision + _T(".")), _T("TortoiseGit"), MB_ICONERROR);
return -1;
}
CAutoCommit commit;
if (git_commit_lookup(commit.GetPointer(), repository, (git_oid *)hash.m_hash))
{
MessageBox(CGit::GetLibGit2LastErr(_T("Could not lookup commit.")), _T("TortoiseGit"), MB_ICONERROR);
return -1;
}
CAutoTree tree;
if (git_commit_tree(tree.GetPointer(), commit))
{
MessageBox(CGit::GetLibGit2LastErr(_T("Could not get tree of commit.")), _T("TortoiseGit"), MB_ICONERROR);
return -1;
}
if (!root.IsEmpty())
{
CAutoTreeEntry treeEntry;
if (git_tree_entry_bypath(treeEntry.GetPointer(), tree, CUnicodeUtils::GetUTF8(root)))
{
MessageBox(CGit::GetLibGit2LastErr(_T("Could not lookup path.")), _T("TortoiseGit"), MB_ICONERROR);
return -1;
}
if (git_tree_entry_type(treeEntry) != GIT_OBJ_TREE)
{
MessageBox(CGit::GetLibGit2LastErr(_T("Could not lookup path.")), _T("TortoiseGit"), MB_ICONERROR);
return -1;
}
CAutoObject object;
if (git_tree_entry_to_object(object.GetPointer(), repository, treeEntry))
{
MessageBox(CGit::GetLibGit2LastErr(_T("Could not lookup path.")), _T("TortoiseGit"), MB_ICONERROR);
return -1;
}
tree = (git_tree*)object.Detach();
}
treeroot->m_hash = CGitHash((char *)git_tree_id(tree)->id);
ReadTreeRecursive(*repository, tree, treeroot);
// try to resolve hash to a branch name
if (m_sRevision == hash.ToString())
{
MAP_HASH_NAME map;
if (CGit::GetMapHashToFriendName(repository, map))
MessageBox(g_Git.GetLibGit2LastErr(_T("Could not get all refs.")), _T("TortoiseGit"), MB_ICONERROR);
if (!map[hash].empty())
m_sRevision = map[hash].at(0);
}
this->GetDlgItem(IDC_BUTTON_REVISION)->SetWindowText(m_sRevision);
return 0;
}
PyObject *
TreeEntry_type__get__(TreeEntry *self)
{
return to_path(git_object_type2string(git_tree_entry_type(self->entry)));
}
/**
* Merges two tree objects, producing a third tree.
* The base tree allows the algorithm to distinguish between adds and deletes.
* The algorithm always prefers the item from tree 1 when there is a conflict.
*/
static int sync_merge_trees(git_oid *out,
git_repository *repo,
const git_oid *base_id,
const git_oid *id1,
const git_oid *id2)
{
int e = 0;
git_tree *base_tree = NULL;
git_tree *tree1 = NULL;
git_tree *tree2 = NULL;
git_treebuilder *tb = NULL;
size_t size1, size2;
size_t i1 = 0;
size_t i2 = 0;
const git_tree_entry *e1 = NULL;
const git_tree_entry *e2 = NULL;
enum { ONLY1 = 1, ONLY2 = 2, BOTH = 3 } state = BOTH;
git_check(git_tree_lookup(&base_tree, repo, base_id));
git_check(git_tree_lookup(&tree1, repo, id1));
git_check(git_tree_lookup(&tree2, repo, id2));
git_check(git_treebuilder_new(&tb, repo, NULL));
size1 = git_tree_entrycount(tree1);
size2 = git_tree_entrycount(tree2);
while (1)
{
// Advance to next file:
if (state == ONLY1 || state == BOTH)
{
e1 = i1 < size1 ? git_tree_entry_byindex(tree1, i1++) : NULL;
}
if (state == ONLY2 || state == BOTH)
{
e2 = i2 < size2 ? git_tree_entry_byindex(tree2, i2++) : NULL;
}
// Determine state:
if (e1 && e2)
{
int s = strcmp(git_tree_entry_name(e1), git_tree_entry_name(e2));
state = s < 0 ? ONLY1 :
s > 0 ? ONLY2 :
BOTH;
}
else if (e1 && !e2)
{
state = ONLY1;
}
else if (!e1 && e2)
{
state = ONLY2;
}
else
{
break;
}
// Grab the entry in question:
const git_tree_entry *entry =
(state == ONLY1 || state == BOTH) ? e1 : e2;
const git_tree_entry *base_entry =
git_tree_entry_byname(base_tree, git_tree_entry_name(entry));
// Decide what to do with the entry:
if (state == BOTH && base_entry &&
GIT_OBJ_TREE == git_tree_entry_type(e1) &&
GIT_OBJ_TREE == git_tree_entry_type(e2) &&
GIT_OBJ_TREE == git_tree_entry_type(base_entry))
{
// Merge sub-trees:
git_oid new_tree;
git_check(sync_merge_trees(&new_tree, repo,
git_tree_entry_id(base_entry),
git_tree_entry_id(e1),
git_tree_entry_id(e2)));
git_check(git_treebuilder_insert(NULL, tb,
git_tree_entry_name(e1),
&new_tree,
git_tree_entry_filemode(e1)));
}
else if (state == BOTH && base_entry)
{
if (git_oid_cmp(git_tree_entry_id(base_entry), git_tree_entry_id(e1)))
{
// Entry `e1` has changes, so use that:
git_check(git_treebuilder_insert(NULL, tb,
git_tree_entry_name(e1),
git_tree_entry_id(e1),
git_tree_entry_filemode(e1)));
}
else
{
// Entry `e1` has no changes, so use `e2`:
git_check(git_treebuilder_insert(NULL, tb,
git_tree_entry_name(e2),
git_tree_entry_id(e2),
git_tree_entry_filemode(e2)));
}
}
else if (state == BOTH || !base_entry)
{
// Entry was added, or already present:
git_check(git_treebuilder_insert(NULL, tb,
git_tree_entry_name(entry),
git_tree_entry_id(entry),
git_tree_entry_filemode(entry)));
}
// Otherwise, the entry was deleted.
}
// Write tree:
git_check(git_treebuilder_write(out, tb));
exit:
if (base_tree) git_tree_free(base_tree);
if (tree1) git_tree_free(tree1);
if (tree2) git_tree_free(tree2);
if (tb) git_treebuilder_free(tb);
return e;
}
static int mne_git_tree_entry_cb(const char *root, git_tree_entry *entry, void *arg) {
mne_git_walk_ctx *ctx = (mne_git_walk_ctx*)arg;
git_otype type = git_tree_entry_type(entry);
if (likely(type == GIT_OBJ_BLOB)) {
const git_oid *blob_oid = git_tree_entry_id(entry);
char *sha1 = malloc(sizeof(char) * GIT_OID_HEXSZ + 1);
assert(sha1 != NULL);
git_oid_tostr(sha1, GIT_OID_HEXSZ + 1, blob_oid);
git_odb_object *blob_odb_object;
git_odb_read(&blob_odb_object, odb, blob_oid);
gpointer blob = g_hash_table_lookup(blobs, (gpointer)sha1);
char **sha1_refs;
if (blob == NULL) {
ctx->distinct_blobs++;
char *tmp_data = (char*)git_odb_object_data(blob_odb_object);
int data_len = strlen(tmp_data);
char *data = malloc(sizeof(char) * (data_len + 1));
memcpy(data, tmp_data, data_len);
data[data_len] = 0;
assert((strlen(root) + strlen(git_tree_entry_name(entry))) < MNE_MAX_PATH_LENGTH);
char *path = malloc(sizeof(char) * MNE_MAX_PATH_LENGTH);
assert(path != NULL);
strcpy(path, root);
strcat(path, git_tree_entry_name(entry));
/* TOOD: Check that the blob <-> path mapping is 1-1. */
g_hash_table_insert(paths, (gpointer)sha1, (gpointer)path);
g_hash_table_insert(blobs, (gpointer)sha1, (gpointer)data);
ctx->bytes += (unsigned long)(sizeof(char) * strlen(data));
sha1_refs = malloc(sizeof(char*) * total_refs);
assert(sha1_refs != NULL);
int i;
for (i = 0; i < total_refs; i++)
sha1_refs[i] = NULL;
g_hash_table_insert(refs, (gpointer)sha1, (gpointer)sha1_refs);
} else {
sha1_refs = g_hash_table_lookup(refs, (gpointer)sha1);
free(sha1);
}
git_odb_object_free(blob_odb_object);
int i;
for (i = 0; i < total_refs; i++) {
if (sha1_refs[i] != NULL)
continue;
sha1_refs[i] = ctx->ref_name;
break;
}
}
return GIT_OK;
}
