static VALUE
backend_read_blob(VALUE rb_obj, VALUE rb_oid) {
git_oid oid;
git_odb *odb;
git_odb_object *g_obj;
git_otype type;
int error, size;
char *data;
VALUE rb_content;
odb = DATA_PTR(rb_obj);
error = git_oid_fromstr(&oid, RSTRING_PTR(rb_oid));
backend_exception_check(error);
error = git_odb_read(&g_obj, odb, &oid);
backend_exception_check(error);
data = (char *)git_odb_object_data(g_obj);
size = git_odb_object_size(g_obj);
type = git_odb_object_type(g_obj);
if (type != GIT_OBJ_BLOB) {
git_odb_object_free(g_obj);
rb_raise(rb_eArgError, "oid does not belong to a blob");
}
rb_content = backend_str_new(data, size, NULL);
git_odb_object_free(g_obj);
return rb_content;
}
PyObject *
Repository_read(Repository *self, PyObject *py_hex)
{
git_oid oid;
git_odb_object *obj;
int len;
PyObject* tuple;
len = py_str_to_git_oid(py_hex, &oid);
if (len < 0)
return NULL;
obj = Repository_read_raw(self->repo, &oid, len);
if (obj == NULL)
return NULL;
tuple = Py_BuildValue(
"(ns#)",
git_odb_object_type(obj),
git_odb_object_data(obj),
git_odb_object_size(obj));
git_odb_object_free(obj);
return tuple;
}
int git_merge_file_input_from_diff_file(
git_merge_file_input *input,
git_repository *repo,
const git_diff_file *file)
{
git_odb *odb = NULL;
int error = 0;
assert(input && repo && file);
if (file->mode == 0)
return 0;
if ((error = git_repository_odb(&odb, repo)) < 0 ||
(error = git_odb_read(&input->odb_object, odb, &file->oid)) < 0)
goto done;
input->mode = file->mode;
input->path = git__strdup(file->path);
input->mmfile.size = git_odb_object_size(input->odb_object);
input->mmfile.ptr = (char *)git_odb_object_data(input->odb_object);
if (input->label == NULL)
input->label = file->path;
done:
git_odb_free(odb);
return error;
}
int git_blob__getbuf(git_buf *buffer, git_blob *blob)
{
return git_buf_set(
buffer,
git_odb_object_data(blob->odb_object),
git_odb_object_size(blob->odb_object));
}
PyObject *
Repository_read(Repository *self, PyObject *py_hex)
{
git_oid oid;
git_odb_object *obj;
size_t len;
PyObject* tuple;
len = py_oid_to_git_oid(py_hex, &oid);
if (len == 0)
return NULL;
obj = Repository_read_raw(self->repo, &oid, len);
if (obj == NULL)
return NULL;
tuple = Py_BuildValue(
#if PY_MAJOR_VERSION == 2
"(ns#)",
#else
"(ny#)",
#endif
git_odb_object_type(obj),
git_odb_object_data(obj),
git_odb_object_size(obj));
git_odb_object_free(obj);
return tuple;
}
int git_tag__parse(void *_tag, git_odb_object *odb_obj)
{
git_tag *tag = _tag;
const char *buffer = git_odb_object_data(odb_obj);
const char *buffer_end = buffer + git_odb_object_size(odb_obj);
return tag_parse(tag, buffer, buffer_end);
}
const void *git_blob_rawcontent(const git_blob *blob)
{
assert(blob);
if (blob->raw)
return blob->data.raw.data;
else
return git_odb_object_data(blob->data.odb);
}
static int cmp_objects(git_odb_object *odb_obj, git_rawobj *raw)
{
if (raw->type != git_odb_object_type(odb_obj))
return -1;
if (raw->len != git_odb_object_size(odb_obj))
return -1;
if ((raw->len > 0) && (memcmp(raw->data, git_odb_object_data(odb_obj), raw->len) != 0))
return -1;
return 0;
}
static ERL_NIF_TERM
geef_object_read(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
{
char path[MAXBUFLEN];
char sha[MAXBUFLEN];
(void)memset(&path, '\0', sizeof(path));
(void)memset(&sha, '\0', sizeof(sha));
if (enif_get_string(env, argv[0], path, sizeof(path), ERL_NIF_LATIN1) < 1)
return enif_make_badarg(env);
if (enif_get_string(env, argv[1], sha, sizeof(sha), ERL_NIF_LATIN1) < 1)
return enif_make_badarg(env);
git_odb *odb;
git_odb_open(&odb, path);
git_oid oid;
git_oid_fromstr(&oid, sha);
int error;
git_odb_object *obj;
error = git_odb_read(&obj, odb, &oid);
if (error)
{
git_odb_free(odb);
return enif_make_tuple2(env,
enif_make_atom(env, "error"),
enif_make_string(env, "object does not exist", ERL_NIF_LATIN1));
}
size_t len;
len = git_odb_object_size(obj);
ErlNifBinary ibin;
enif_alloc_binary(len, &ibin);
memcpy(ibin.data, git_odb_object_data(obj), len);
git_odb_free(odb);
return enif_make_binary(env, &ibin);
}
PyObject *
Object_read_raw(Object *self)
{
const git_oid *oid;
git_odb_object *obj;
PyObject *aux;
oid = git_object_id(self->obj);
obj = Repository_read_raw(self->repo->repo, oid, GIT_OID_HEXSZ);
if (obj == NULL)
return NULL;
aux = PyBytes_FromStringAndSize(
git_odb_object_data(obj),
git_odb_object_size(obj));
git_odb_object_free(obj);
return aux;
}
int git_commit_list_parse(git_revwalk *walk, git_commit_list_node *commit)
{
git_odb_object *obj;
int error;
if (commit->parsed)
return 0;
if ((error = git_odb_read(&obj, walk->odb, &commit->oid)) < 0)
return error;
if (obj->cached.type != GIT_OBJ_COMMIT) {
giterr_set(GITERR_INVALID, "Object is no commit object");
error = -1;
} else
error = commit_quick_parse(
walk, commit,
(const uint8_t *)git_odb_object_data(obj),
git_odb_object_size(obj));
git_odb_object_free(obj);
return error;
}
static void
checksum_odb_object (struct EvTag *self,
git_odb_object *object)
{
git_otype otype = git_odb_object_type (object);
const char *otypestr = git_object_type2string (otype);
size_t size = git_odb_object_size (object);
char *header;
size_t headerlen;
header = g_strdup_printf ("%s %" G_GSIZE_FORMAT, otypestr, size);
/* Also include the trailing NUL byte */
headerlen = strlen (header) + 1;
g_checksum_update (self->checksum, (guint8*)header, headerlen);
g_free (header);
switch (otype)
{
case GIT_OBJ_BLOB:
self->n_blobs++;
self->blob_bytes += size + headerlen;
break;
case GIT_OBJ_COMMIT:
self->n_commits++;
self->commit_bytes += size + headerlen;
break;
case GIT_OBJ_TREE:
self->n_trees++;
self->tree_bytes += size + headerlen;
break;
default:
g_assert_not_reached ();
}
g_checksum_update (self->checksum, git_odb_object_data (object), size);
}
int git_commit__parse(void *_commit, git_odb_object *odb_obj)
{
return git_commit__parse_raw(_commit,
git_odb_object_data(odb_obj),
git_odb_object_size(odb_obj));
}
int main (int argc, char** argv)
{
// ### Opening the Repository
// There are a couple of methods for opening a repository, this being the simplest.
// There are also [methods][me] for specifying the index file and work tree locations, here
// we are assuming they are in the normal places.
//
// [me]: http://libgit2.github.com/libgit2/#HEAD/group/repository
git_repository *repo;
if (argc > 1) {
git_repository_open(&repo, argv[1]);
} else {
git_repository_open(&repo, "/opt/libgit2-test/.git");
}
// ### SHA-1 Value Conversions
// For our first example, we will convert a 40 character hex value to the 20 byte raw SHA1 value.
printf("*Hex to Raw*\n");
char hex[] = "fd6e612585290339ea8bf39c692a7ff6a29cb7c3";
// The `git_oid` is the structure that keeps the SHA value. We will use this throughout the example
// for storing the value of the current SHA key we're working with.
git_oid oid;
git_oid_fromstr(&oid, hex);
// Once we've converted the string into the oid value, we can get the raw value of the SHA.
printf("Raw 20 bytes: [%.20s]\n", (&oid)->id);
// Next we will convert the 20 byte raw SHA1 value to a human readable 40 char hex value.
printf("\n*Raw to Hex*\n");
char out[41];
out[40] = '\0';
// If you have a oid, you can easily get the hex value of the SHA as well.
git_oid_fmt(out, &oid);
printf("SHA hex string: %s\n", out);
// ### Working with the Object Database
// **libgit2** provides [direct access][odb] to the object database.
// The object database is where the actual objects are stored in Git. For
// working with raw objects, we'll need to get this structure from the
// repository.
// [odb]: http://libgit2.github.com/libgit2/#HEAD/group/odb
git_odb *odb;
git_repository_odb(&odb, repo);
// #### Raw Object Reading
printf("\n*Raw Object Read*\n");
git_odb_object *obj;
git_otype otype;
const unsigned char *data;
const char *str_type;
int error;
// We can read raw objects directly from the object database if we have the oid (SHA)
// of the object. This allows us to access objects without knowing thier type and inspect
// the raw bytes unparsed.
error = git_odb_read(&obj, odb, &oid);
// A raw object only has three properties - the type (commit, blob, tree or tag), the size
// of the raw data and the raw, unparsed data itself. For a commit or tag, that raw data
// is human readable plain ASCII text. For a blob it is just file contents, so it could be
// text or binary data. For a tree it is a special binary format, so it's unlikely to be
// hugely helpful as a raw object.
data = (const unsigned char *)git_odb_object_data(obj);
otype = git_odb_object_type(obj);
// We provide methods to convert from the object type which is an enum, to a string
// representation of that value (and vice-versa).
str_type = git_object_type2string(otype);
printf("object length and type: %d, %s\n",
(int)git_odb_object_size(obj),
str_type);
// For proper memory management, close the object when you are done with it or it will leak
// memory.
git_odb_object_free(obj);
// #### Raw Object Writing
printf("\n*Raw Object Write*\n");
// You can also write raw object data to Git. This is pretty cool because it gives you
// direct access to the key/value properties of Git. Here we'll write a new blob object
// that just contains a simple string. Notice that we have to specify the object type as
// the `git_otype` enum.
git_odb_write(&oid, odb, "test data", sizeof("test data") - 1, GIT_OBJ_BLOB);
// Now that we've written the object, we can check out what SHA1 was generated when the
// object was written to our database.
git_oid_fmt(out, &oid);
printf("Written Object: %s\n", out);
// ### Object Parsing
// libgit2 has methods to parse every object type in Git so you don't have to work directly
// with the raw data. This is much faster and simpler than trying to deal with the raw data
// yourself.
// #### Commit Parsing
// [Parsing commit objects][pco] is simple and gives you access to all the data in the commit
// - the // author (name, email, datetime), committer (same), tree, message, encoding and parent(s).
// [pco]: http://libgit2.github.com/libgit2/#HEAD/group/commit
printf("\n*Commit Parsing*\n");
git_commit *commit;
git_oid_fromstr(&oid, "f0877d0b841d75172ec404fc9370173dfffc20d1");
error = git_commit_lookup(&commit, repo, &oid);
const git_signature *author, *cmtter;
const char *message;
time_t ctime;
unsigned int parents, p;
// Each of the properties of the commit object are accessible via methods, including commonly
// needed variations, such as `git_commit_time` which returns the author time and `_message`
// which gives you the commit message.
message = git_commit_message(commit);
author = git_commit_author(commit);
cmtter = git_commit_committer(commit);
ctime = git_commit_time(commit);
// The author and committer methods return [git_signature] structures, which give you name, email
// and `when`, which is a `git_time` structure, giving you a timestamp and timezone offset.
printf("Author: %s (%s)\n", author->name, author->email);
// Commits can have zero or more parents. The first (root) commit will have no parents, most commits
// will have one, which is the commit it was based on, and merge commits will have two or more.
// Commits can technically have any number, though it's pretty rare to have more than two.
parents = git_commit_parentcount(commit);
for (p = 0;p < parents;p++) {
git_commit *parent;
git_commit_parent(&parent, commit, p);
git_oid_fmt(out, git_commit_id(parent));
printf("Parent: %s\n", out);
git_commit_free(parent);
}
// Don't forget to close the object to prevent memory leaks. You will have to do this for
// all the objects you open and parse.
git_commit_free(commit);
// #### Writing Commits
//
// libgit2 provides a couple of methods to create commit objects easily as well. There are four
// different create signatures, we'll just show one of them here. You can read about the other
// ones in the [commit API docs][cd].
// [cd]: http://libgit2.github.com/libgit2/#HEAD/group/commit
printf("\n*Commit Writing*\n");
git_oid tree_id, parent_id, commit_id;
git_tree *tree;
git_commit *parent;
// Creating signatures for an authoring identity and time is pretty simple - you will need to have
// this to create a commit in order to specify who created it and when. Default values for the name
// and email should be found in the `user.name` and `user.email` configuration options. See the `config`
// section of this example file to see how to access config values.
git_signature_new((git_signature **)&author, "Scott Chacon", "*****@*****.**",
123456789, 60);
git_signature_new((git_signature **)&cmtter, "Scott A Chacon", "*****@*****.**",
987654321, 90);
// Commit objects need a tree to point to and optionally one or more parents. Here we're creating oid
// objects to create the commit with, but you can also use
git_oid_fromstr(&tree_id, "28873d96b4e8f4e33ea30f4c682fd325f7ba56ac");
git_tree_lookup(&tree, repo, &tree_id);
git_oid_fromstr(&parent_id, "f0877d0b841d75172ec404fc9370173dfffc20d1");
git_commit_lookup(&parent, repo, &parent_id);
// Here we actually create the commit object with a single call with all the values we need to create
// the commit. The SHA key is written to the `commit_id` variable here.
git_commit_create_v(
&commit_id, /* out id */
repo,
NULL, /* do not update the HEAD */
author,
cmtter,
NULL, /* use default message encoding */
"example commit",
tree,
1, parent);
// Now we can take a look at the commit SHA we've generated.
git_oid_fmt(out, &commit_id);
printf("New Commit: %s\n", out);
// #### Tag Parsing
// You can parse and create tags with the [tag management API][tm], which functions very similarly
// to the commit lookup, parsing and creation methods, since the objects themselves are very similar.
// [tm]: http://libgit2.github.com/libgit2/#HEAD/group/tag
printf("\n*Tag Parsing*\n");
git_tag *tag;
const char *tmessage, *tname;
git_otype ttype;
// We create an oid for the tag object if we know the SHA and look it up in the repository the same
// way that we would a commit (or any other) object.
git_oid_fromstr(&oid, "bc422d45275aca289c51d79830b45cecebff7c3a");
error = git_tag_lookup(&tag, repo, &oid);
// Now that we have the tag object, we can extract the information it generally contains: the target
// (usually a commit object), the type of the target object (usually 'commit'), the name ('v1.0'),
// the tagger (a git_signature - name, email, timestamp), and the tag message.
git_tag_target((git_object **)&commit, tag);
tname = git_tag_name(tag); // "test"
ttype = git_tag_type(tag); // GIT_OBJ_COMMIT (otype enum)
tmessage = git_tag_message(tag); // "tag message\n"
printf("Tag Message: %s\n", tmessage);
git_commit_free(commit);
// #### Tree Parsing
// [Tree parsing][tp] is a bit different than the other objects, in that we have a subtype which is the
// tree entry. This is not an actual object type in Git, but a useful structure for parsing and
// traversing tree entries.
//
// [tp]: http://libgit2.github.com/libgit2/#HEAD/group/tree
printf("\n*Tree Parsing*\n");
const git_tree_entry *entry;
git_object *objt;
// Create the oid and lookup the tree object just like the other objects.
git_oid_fromstr(&oid, "2a741c18ac5ff082a7caaec6e74db3075a1906b5");
git_tree_lookup(&tree, repo, &oid);
// Getting the count of entries in the tree so you can iterate over them if you want to.
int cnt = git_tree_entrycount(tree); // 3
printf("tree entries: %d\n", cnt);
entry = git_tree_entry_byindex(tree, 0);
printf("Entry name: %s\n", git_tree_entry_name(entry)); // "hello.c"
// You can also access tree entries by name if you know the name of the entry you're looking for.
entry = git_tree_entry_byname(tree, "hello.c");
git_tree_entry_name(entry); // "hello.c"
// Once you have the entry object, you can access the content or subtree (or commit, in the case
// of submodules) that it points to. You can also get the mode if you want.
git_tree_entry_to_object(&objt, repo, entry); // blob
// Remember to close the looked-up object once you are done using it
git_object_free(objt);
// #### Blob Parsing
//
// The last object type is the simplest and requires the least parsing help. Blobs are just file
// contents and can contain anything, there is no structure to it. The main advantage to using the
// [simple blob api][ba] is that when you're creating blobs you don't have to calculate the size
// of the content. There is also a helper for reading a file from disk and writing it to the db and
// getting the oid back so you don't have to do all those steps yourself.
//
// [ba]: http://libgit2.github.com/libgit2/#HEAD/group/blob
printf("\n*Blob Parsing*\n");
git_blob *blob;
git_oid_fromstr(&oid, "af7574ea73f7b166f869ef1a39be126d9a186ae0");
git_blob_lookup(&blob, repo, &oid);
// You can access a buffer with the raw contents of the blob directly.
// Note that this buffer may not be contain ASCII data for certain blobs (e.g. binary files):
// do not consider the buffer a NULL-terminated string, and use the `git_blob_rawsize` attribute to
// find out its exact size in bytes
printf("Blob Size: %ld\n", git_blob_rawsize(blob)); // 8
git_blob_rawcontent(blob); // "content"
// ### Revwalking
//
// The libgit2 [revision walking api][rw] provides methods to traverse the directed graph created
// by the parent pointers of the commit objects. Since all commits point back to the commit that
// came directly before them, you can walk this parentage as a graph and find all the commits that
// were ancestors of (reachable from) a given starting point. This can allow you to create `git log`
// type functionality.
//
// [rw]: http://libgit2.github.com/libgit2/#HEAD/group/revwalk
printf("\n*Revwalking*\n");
git_revwalk *walk;
git_commit *wcommit;
git_oid_fromstr(&oid, "f0877d0b841d75172ec404fc9370173dfffc20d1");
// To use the revwalker, create a new walker, tell it how you want to sort the output and then push
// one or more starting points onto the walker. If you want to emulate the output of `git log` you
// would push the SHA of the commit that HEAD points to into the walker and then start traversing them.
// You can also 'hide' commits that you want to stop at or not see any of their ancestors. So if you
// want to emulate `git log branch1..branch2`, you would push the oid of `branch2` and hide the oid
// of `branch1`.
git_revwalk_new(&walk, repo);
git_revwalk_sorting(walk, GIT_SORT_TOPOLOGICAL | GIT_SORT_REVERSE);
git_revwalk_push(walk, &oid);
const git_signature *cauth;
const char *cmsg;
// Now that we have the starting point pushed onto the walker, we can start asking for ancestors. It
// will return them in the sorting order we asked for as commit oids.
// We can then lookup and parse the commited pointed at by the returned OID;
// note that this operation is specially fast since the raw contents of the commit object will
// be cached in memory
while ((git_revwalk_next(&oid, walk)) == 0) {
error = git_commit_lookup(&wcommit, repo, &oid);
cmsg = git_commit_message(wcommit);
cauth = git_commit_author(wcommit);
printf("%s (%s)\n", cmsg, cauth->email);
git_commit_free(wcommit);
}
// Like the other objects, be sure to free the revwalker when you're done to prevent memory leaks.
// Also, make sure that the repository being walked it not deallocated while the walk is in
// progress, or it will result in undefined behavior
git_revwalk_free(walk);
// ### Index File Manipulation
//
// The [index file API][gi] allows you to read, traverse, update and write the Git index file
// (sometimes thought of as the staging area).
//
// [gi]: http://libgit2.github.com/libgit2/#HEAD/group/index
printf("\n*Index Walking*\n");
git_index *index;
unsigned int i, ecount;
// You can either open the index from the standard location in an open repository, as we're doing
// here, or you can open and manipulate any index file with `git_index_open_bare()`. The index
// for the repository will be located and loaded from disk.
git_repository_index(&index, repo);
// For each entry in the index, you can get a bunch of information including the SHA (oid), path
// and mode which map to the tree objects that are written out. It also has filesystem properties
// to help determine what to inspect for changes (ctime, mtime, dev, ino, uid, gid, file_size and flags)
// All these properties are exported publicly in the `git_index_entry` struct
ecount = git_index_entrycount(index);
for (i = 0; i < ecount; ++i) {
git_index_entry *e = git_index_get(index, i);
printf("path: %s\n", e->path);
printf("mtime: %d\n", (int)e->mtime.seconds);
printf("fs: %d\n", (int)e->file_size);
}
git_index_free(index);
// ### References
//
// The [reference API][ref] allows you to list, resolve, create and update references such as
// branches, tags and remote references (everything in the .git/refs directory).
//
// [ref]: http://libgit2.github.com/libgit2/#HEAD/group/reference
printf("\n*Reference Listing*\n");
// Here we will implement something like `git for-each-ref` simply listing out all available
// references and the object SHA they resolve to.
git_strarray ref_list;
git_reference_list(&ref_list, repo, GIT_REF_LISTALL);
const char *refname;
git_reference *ref;
// Now that we have the list of reference names, we can lookup each ref one at a time and
// resolve them to the SHA, then print both values out.
for (i = 0; i < ref_list.count; ++i) {
refname = ref_list.strings[i];
git_reference_lookup(&ref, repo, refname);
switch (git_reference_type(ref)) {
case GIT_REF_OID:
git_oid_fmt(out, git_reference_oid(ref));
printf("%s [%s]\n", refname, out);
break;
case GIT_REF_SYMBOLIC:
printf("%s => %s\n", refname, git_reference_target(ref));
break;
default:
fprintf(stderr, "Unexpected reference type\n");
exit(1);
}
}
git_strarray_free(&ref_list);
// ### Config Files
//
// The [config API][config] allows you to list and updatee config values in
// any of the accessible config file locations (system, global, local).
//
// [config]: http://libgit2.github.com/libgit2/#HEAD/group/config
printf("\n*Config Listing*\n");
const char *email;
int32_t j;
git_config *cfg;
// Open a config object so we can read global values from it.
git_config_open_ondisk(&cfg, "~/.gitconfig");
git_config_get_int32(cfg, "help.autocorrect", &j);
printf("Autocorrect: %d\n", j);
git_config_get_string(cfg, "user.email", &email);
printf("Email: %s\n", email);
// Finally, when you're done with the repository, you can free it as well.
git_repository_free(repo);
return 0;
}
/* The wiki handler */
static int wiki_handler(request_rec *r)
{
wiki_conf *conf;
git_repository *repo;
const git_oid *tree_oid;
char *path;
const git_oid *oid;
char hash[41];
hash[40] = '\0';
int ret;
int type;
MMIOT *doc;
if (strcmp(r->handler, "wiki")) {
return DECLINED;
}
if (r->header_only) {
return OK;
}
conf =
(wiki_conf *) ap_get_module_config(r->per_dir_config,
&wiki_module);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "filename=%s",
r->filename);
if (conf->basepath) {
path = ltrim(conf->basepath, r->parsed_uri.path);
} else {
path = r->parsed_uri.path + 1;
}
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "path=%s", path);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"r->content_type=%s", r->content_type);
if (conf->repo == NULL) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"WikiRepository is not set.");
return HTTP_INTERNAL_SERVER_ERROR;
}
ret = git_repository_open(&repo, conf->repo);
if (ret) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"Cannot open git repository.(%s)", conf->repo);
return HTTP_INTERNAL_SERVER_ERROR;
}
tree_oid = lookup_master_tree(repo);
if (tree_oid == NULL) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"Not found master tree.");
git_repository_free(repo);
}
type = lookup_object_oid(r, repo, tree_oid, path, &oid);
if (type == WIKI_NOTFOUND) {
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r,
"Object is not found.");
git_repository_free(repo);
return HTTP_NOT_FOUND;
} else if(type == WIKI_DIR) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"Directory listing is not implement yet.");
git_repository_free(repo);
return HTTP_FORBIDDEN;
} else if(type == WIKI_ERROR) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"Error at lookup.");
git_repository_free(repo);
return HTTP_NOT_FOUND;
}
git_oid_fmt(hash, oid);
ap_log_rerror(APLOG_MARK, APLOG_DEBUG, 0, r, "object hash=%s", hash);
const char *data;
size_t size;
git_odb *odb;
ret = git_repository_odb(&odb, repo);
git_odb_object *odb_object;
ret = git_odb_read(&odb_object, odb, oid);
data = git_odb_object_data(odb_object);
size = git_odb_object_size(odb_object);
git_odb_object_free(odb_object); // is this safe?
if (type == WIKI_FOUND) {
ap_rwrite(data, size, r);
} else if(type == WIKI_MARKDOWN) {
r->content_type = "text/html";
doc = mkd_string(data, size, 0);
if (doc == NULL) {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"mkd_string() returned NULL\n");
git_repository_free(repo);
return HTTP_INTERNAL_SERVER_ERROR;
}
wiki_output(doc, r);
mkd_cleanup(doc);
} else {
ap_log_rerror(APLOG_MARK, APLOG_ERR, 0, r,
"Unknown Error.\n");
git_repository_free(repo);
return HTTP_INTERNAL_SERVER_ERROR;
}
git_repository_free(repo);
return OK;
}
int git_commit__parse(void *_commit, git_odb_object *odb_obj)
{
git_commit *commit = _commit;
const char *buffer_start = git_odb_object_data(odb_obj), *buffer;
const char *buffer_end = buffer_start + git_odb_object_size(odb_obj);
git_oid parent_id;
size_t header_len;
git_signature dummy_sig;
buffer = buffer_start;
/* Allocate for one, which will allow not to realloc 90% of the time */
git_array_init_to_size(commit->parent_ids, 1);
GITERR_CHECK_ARRAY(commit->parent_ids);
/* The tree is always the first field */
if (git_oid__parse(&commit->tree_id, &buffer, buffer_end, "tree ") < 0)
goto bad_buffer;
/*
* TODO: commit grafts!
*/
while (git_oid__parse(&parent_id, &buffer, buffer_end, "parent ") == 0) {
git_oid *new_id = git_array_alloc(commit->parent_ids);
GITERR_CHECK_ALLOC(new_id);
git_oid_cpy(new_id, &parent_id);
}
commit->author = git__malloc(sizeof(git_signature));
GITERR_CHECK_ALLOC(commit->author);
if (git_signature__parse(commit->author, &buffer, buffer_end, "author ", '\n') < 0)
return -1;
/* Some tools create multiple author fields, ignore the extra ones */
while ((size_t)(buffer_end - buffer) >= strlen("author ") && !git__prefixcmp(buffer, "author ")) {
if (git_signature__parse(&dummy_sig, &buffer, buffer_end, "author ", '\n') < 0)
return -1;
git__free(dummy_sig.name);
git__free(dummy_sig.email);
}
/* Always parse the committer; we need the commit time */
commit->committer = git__malloc(sizeof(git_signature));
GITERR_CHECK_ALLOC(commit->committer);
if (git_signature__parse(commit->committer, &buffer, buffer_end, "committer ", '\n') < 0)
return -1;
/* Parse add'l header entries */
while (buffer < buffer_end) {
const char *eoln = buffer;
if (buffer[-1] == '\n' && buffer[0] == '\n')
break;
while (eoln < buffer_end && *eoln != '\n')
++eoln;
if (git__prefixcmp(buffer, "encoding ") == 0) {
buffer += strlen("encoding ");
commit->message_encoding = git__strndup(buffer, eoln - buffer);
GITERR_CHECK_ALLOC(commit->message_encoding);
}
if (eoln < buffer_end && *eoln == '\n')
++eoln;
buffer = eoln;
}
header_len = buffer - buffer_start;
commit->raw_header = git__strndup(buffer_start, header_len);
GITERR_CHECK_ALLOC(commit->raw_header);
/* point "buffer" to data after header, +1 for the final LF */
buffer = buffer_start + header_len + 1;
/* extract commit message */
if (buffer <= buffer_end) {
commit->raw_message = git__strndup(buffer, buffer_end - buffer);
GITERR_CHECK_ALLOC(commit->raw_message);
}
return 0;
bad_buffer:
giterr_set(GITERR_OBJECT, "Failed to parse bad commit object");
return -1;
}
static void assert_object_contains(git_odb_object *obj, const char *expected)
{
const char *actual = (const char *) git_odb_object_data(obj);
cl_assert_equal_s(actual, expected);
}
int cmd_cat_file(int argc, const char **argv)
{
/* Uncomment when it passes the tests */
please_git_do_it_for_me();
char opt;
if (argc != 2 && argc !=3)
please_git_do_it_for_me();
if (argc == 3){
if ((strcmp(argv[1], "blob") == 0) || (strcmp(argv[1], "tree") == 0) || (strcmp(argv[1], "commit") == 0) || (strcmp(argv[1], "tag") == 0 ))
opt = '0';
else
opt = argv[1][1];
}
else if (argc == 2 && (strcmp(argv[1], "--batch") == 0))
opt = 'a';
git_repository *repo = get_git_repository();
git_oid oid;
if (git_oid_fromstr(&oid, (const char *)argv[argc-1]))
please_git_do_it_for_me();
git_odb *odb;
git_repository_odb(&odb, repo);
git_odb_object *odb_object;
if(git_odb_read(&odb_object, odb, &oid) == GIT_ENOTFOUND)
libgit_error();
size_t size = git_odb_object_size(odb_object);
git_otype type = git_odb_object_type(odb_object);
const char *type_string = git_object_type2string(type);
switch (opt) {
case 'p':
if (strcmp(type_string, "tree") == 0) {
printf("vous etes là\n");
char ** arg = malloc(2);
strcpy(arg[0], "ls-tree");
strcpy(arg[1], argv[2]);
int e = cmd_ls_tree(2, (const char **)arg);
if (e == 0 )
printf("succes\n");
else
printf("echec\n");
}
else {
for(int i=0; i < (int)size; i++)
printf("%c", *((char *)git_odb_object_data(odb_object)+i));
}
break;
case 't':
printf("%s\n",type_string);
break;
case 's':
printf("%zu\n",size);
break;
case 'e':
if(git_odb_exists(odb, &oid) == 1) {
return 0;
}
break;
case '0' :
if (strcmp(type_string, argv[1]) == 0) {
for (int i=0; i < (int)size; i++)
printf("%c", *((char *)git_odb_object_data(odb_object)+i));
}
else
please_git_do_it_for_me();
break;
case 'a' :
please_git_do_it_for_me();
// if (strbuf_read(&buf, 0, 4096) < 0)
// die_errno("could not read from stdin");
//
// git_oid id;
// if (git_oid_mkstr(&id, buf.buf))
// please_git_do_it_for_me();
//
// git_odb_object *odb_object1;
// if(git_odb_read(&odb_object1, odb, &id) == GIT_ENOTFOUND)
// libgit_error();
// size_t size1 = git_odb_object_size(odb_object1);
// git_otype type1 = git_odb_object_type(odb_object1);
//
// printf("bla bla %s %s %zu\n",buf.buf, git_object_type2string(type1), size1);
// for(int i=0; i < (int)size1; i++)
// printf("%c", *((char *)git_odb_object_data(odb_object1)+i));
// fflush(stdout);
break;
}
//git_odb_object_close(odb_object);
return EXIT_SUCCESS;
}
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;
}
static VALUE
backend_read_tree(VALUE rb_obj, VALUE rb_oid)
{
git_oid tree_oid, blob_oid;
git_odb *odb;
git_odb_object *g_obj;
git_otype type;
int error, size, attr, len;
char *head, *cur, *tmp, *tail, str_oid[40];
VALUE rb_hash, rb_key, rb_value;
odb = DATA_PTR(rb_obj);
error = git_oid_fromstr(&tree_oid, RSTRING_PTR(rb_oid));
backend_exception_check(error);
error = git_odb_read(&g_obj, odb, &tree_oid);
backend_exception_check(error);
head = (char *)git_odb_object_data(g_obj);
size = git_odb_object_size(g_obj);
type = git_odb_object_type(g_obj);
if (type != GIT_OBJ_TREE) {
git_odb_object_free(g_obj);
rb_raise(rb_eArgError, "oid does not belong to a tree");
}
rb_hash = rb_hash_new();
cur = head;
tail = head + size;
while (cur < tail) {
attr = strtol(cur, &tmp, 8);
if (tmp - cur != 3) {
git_odb_object_free(g_obj);
rb_raise(rb_eRuntimeError, "tree is invalid, bad attributes");
}
if (*tmp != ' ') {
git_odb_object_free(g_obj);
rb_raise(rb_eRuntimeError, "tree is invalid, no space after attributes");
}
cur = tmp + 1;
/* Grab the filename */
len = strlen(cur);
rb_key = backend_str_new(cur, len, NULL);
cur += len + 1;
/* Grab the oid */
git_oid_fromraw(&blob_oid, (unsigned char *)cur);
git_oid_fmt(str_oid, &blob_oid);
rb_value = backend_str_new(str_oid, 40, NULL);
cur += GIT_OID_RAWSZ;
/* Set the hash entry */
rb_hash_aset(rb_hash, rb_key, rb_value);
}
git_odb_object_free(g_obj);
return rb_hash;
}
int git_commit_extract_signature(git_buf *signature, git_buf *signed_data, git_repository *repo, git_oid *commit_id, const char *field)
{
git_odb_object *obj;
git_odb *odb;
const char *buf;
const char *h, *eol;
int error;
git_buf_clear(signature);
git_buf_clear(signed_data);
if (!field)
field = "gpgsig";
if ((error = git_repository_odb__weakptr(&odb, repo)) < 0)
return error;
if ((error = git_odb_read(&obj, odb, commit_id)) < 0)
return error;
if (obj->cached.type != GIT_OBJECT_COMMIT) {
giterr_set(GITERR_INVALID, "the requested type does not match the type in ODB");
error = GIT_ENOTFOUND;
goto cleanup;
}
buf = git_odb_object_data(obj);
while ((h = strchr(buf, '\n')) && h[1] != '\0') {
h++;
if (git__prefixcmp(buf, field)) {
if (git_buf_put(signed_data, buf, h - buf) < 0)
return -1;
buf = h;
continue;
}
h = buf;
h += strlen(field);
eol = strchr(h, '\n');
if (h[0] != ' ') {
buf = h;
continue;
}
if (!eol)
goto malformed;
h++; /* skip the SP */
git_buf_put(signature, h, eol - h);
if (git_buf_oom(signature))
goto oom;
/* If the next line starts with SP, it's multi-line, we must continue */
while (eol[1] == ' ') {
git_buf_putc(signature, '\n');
h = eol + 2;
eol = strchr(h, '\n');
if (!eol)
goto malformed;
git_buf_put(signature, h, eol - h);
}
if (git_buf_oom(signature))
goto oom;
error = git_buf_puts(signed_data, eol+1);
git_odb_object_free(obj);
return error;
}
giterr_set(GITERR_OBJECT, "this commit is not signed");
error = GIT_ENOTFOUND;
goto cleanup;
malformed:
giterr_set(GITERR_OBJECT, "malformed header");
error = -1;
goto cleanup;
oom:
giterr_set_oom();
error = -1;
goto cleanup;
cleanup:
git_odb_object_free(obj);
git_buf_clear(signature);
git_buf_clear(signed_data);
return error;
}
const void *git_blob_rawcontent(const git_blob *blob)
{
assert(blob);
return git_odb_object_data(blob->odb_object);
}
static int inject_object(git_indexer *idx, git_oid *id)
{
git_odb_object *obj;
struct entry *entry;
struct git_pack_entry *pentry = NULL;
git_oid foo = {{0}};
unsigned char hdr[64];
git_buf buf = GIT_BUF_INIT;
git_off_t entry_start;
const void *data;
size_t len, hdr_len;
int error;
seek_back_trailer(idx);
entry_start = idx->pack->mwf.size;
if (git_odb_read(&obj, idx->odb, id) < 0) {
giterr_set(GITERR_INDEXER, "missing delta bases");
return -1;
}
data = git_odb_object_data(obj);
len = git_odb_object_size(obj);
entry = (struct entry*) git__calloc(1, sizeof(*entry));
GITERR_CHECK_ALLOC(entry);
entry->crc = crc32(0L, Z_NULL, 0);
/* Write out the object header */
hdr_len = git_packfile__object_header(hdr, len, git_odb_object_type(obj));
if ((error = append_to_pack(idx, hdr, hdr_len)) < 0)
goto cleanup;
idx->pack->mwf.size += hdr_len;
entry->crc = crc32(entry->crc, hdr, (uInt)hdr_len);
if ((error = git_zstream_deflatebuf(&buf, data, len)) < 0)
goto cleanup;
/* And then the compressed object */
if ((error = append_to_pack(idx, buf.ptr, buf.size)) < 0)
goto cleanup;
idx->pack->mwf.size += buf.size;
entry->crc = htonl(crc32(entry->crc, (unsigned char *)buf.ptr, (uInt)buf.size));
git_buf_free(&buf);
/* Write a fake trailer so the pack functions play ball */
if ((error = append_to_pack(idx, &foo, GIT_OID_RAWSZ)) < 0)
goto cleanup;
idx->pack->mwf.size += GIT_OID_RAWSZ;
pentry = (git_pack_entry*) git__calloc(1, sizeof(struct git_pack_entry));
GITERR_CHECK_ALLOC(pentry);
git_oid_cpy(&pentry->sha1, id);
git_oid_cpy(&entry->oid, id);
idx->off = entry_start + hdr_len + len;
error = save_entry(idx, entry, pentry, entry_start);
cleanup:
if (error) {
git__free(entry);
git__free(pentry);
}
git_odb_object_free(obj);
return error;
}
