int git_odb__format_object_header(char *hdr, size_t n, size_t obj_len, git_otype obj_type)
{
const char *type_str = git_object_type2string(obj_type);
int len = p_snprintf(hdr, n, "%s %"PRIuZ, type_str, obj_len);
assert(len > 0 && len <= (int)n);
return len+1;
}
static VALUE rb_git_tag_target_type_GET(VALUE self)
{
git_tag *tag;
RUGGED_OBJ_UNWRAP(self, git_tag, tag);
return rugged_str_new2(git_object_type2string(git_tag_type(tag)), NULL);
}
static int show_ref(git_reference *ref, void *data)
{
git_repository *repo = data;
git_reference *resolved = NULL;
char hex[GIT_OID_HEXSZ+1];
const git_oid *oid;
git_object *obj;
if (git_reference_type(ref) == GIT_REF_SYMBOLIC)
check_lg2(git_reference_resolve(&resolved, ref),
"Unable to resolve symbolic reference",
git_reference_name(ref));
oid = git_reference_target(resolved ? resolved : ref);
git_oid_fmt(hex, oid);
hex[GIT_OID_HEXSZ] = 0;
check_lg2(git_object_lookup(&obj, repo, oid, GIT_OBJ_ANY),
"Unable to lookup object", hex);
printf("%s %-6s\t%s\n",
hex,
git_object_type2string(git_object_type(obj)),
git_reference_name(ref));
if (resolved)
git_reference_free(resolved);
return 0;
}
static int write_tag_annotation(
git_oid *oid,
git_repository *repo,
const char *tag_name,
const git_object *target,
const git_signature *tagger,
const char *message)
{
git_buf tag = GIT_BUF_INIT;
git_odb *odb;
git_oid__writebuf(&tag, "object ", git_object_id(target));
git_buf_printf(&tag, "type %s\n", git_object_type2string(git_object_type(target)));
git_buf_printf(&tag, "tag %s\n", tag_name);
git_signature__writebuf(&tag, "tagger ", tagger);
git_buf_putc(&tag, '\n');
if (git_buf_puts(&tag, message) < 0)
goto on_error;
if (git_repository_odb__weakptr(&odb, repo) < 0)
goto on_error;
if (git_odb_write(oid, odb, tag.ptr, tag.size, GIT_OBJ_TAG) < 0)
goto on_error;
git_buf_free(&tag);
return 0;
on_error:
git_buf_free(&tag);
giterr_set(GITERR_OBJECT, "Failed to create tag annotation.");
return -1;
}
static VALUE rb_git_type_to_string(VALUE self, VALUE type)
{
const char *str;
Check_Type(type, T_FIXNUM);
git_otype t = (git_otype)FIX2INT(type);
str = git_object_type2string(t);
return str ? rugged_str_new2(str, NULL) : Qfalse;
}
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 format_object_header(char *hdr, size_t n, git_rawobj *obj)
{
const char *type_str = git_object_type2string(obj->type);
int len = snprintf(hdr, n, "%s %"PRIuZ, type_str, obj->len);
assert(len > 0); /* otherwise snprintf() is broken */
assert(((size_t) len) < n); /* otherwise the caller is broken! */
if (len < 0 || ((size_t) len) >= n)
return GIT_ERROR;
return len+1;
}
static void show_tag(const git_tag *tag)
{
char oidstr[GIT_OID_HEXSZ + 1];
git_oid_tostr(oidstr, sizeof(oidstr), git_tag_target_id(tag));;
printf("object %s\n", oidstr);
printf("type %s\n", git_object_type2string(git_tag_target_type(tag)));
printf("tag %s\n", git_tag_name(tag));
print_signature("tagger", git_tag_tagger(tag));
if (git_tag_message(tag))
printf("\n%s\n", git_tag_message(tag));
}
static int peel_error(int error, const git_oid *oid, git_otype type)
{
const char *type_name;
char hex_oid[GIT_OID_HEXSZ + 1];
type_name = git_object_type2string(type);
git_oid_fmt(hex_oid, oid);
hex_oid[GIT_OID_HEXSZ] = '\0';
giterr_set(GITERR_OBJECT, "The git_object of id '%s' can not be "
"successfully peeled into a %s (git_otype=%i).", hex_oid, type_name, type);
return error;
}
/** 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));
}
}
void git_cache_dump_stats(git_cache *cache)
{
git_cached_obj *object;
if (kh_size(cache->map) == 0)
return;
Rprintf("Cache %p: %d items cached, %d bytes\n",
cache, kh_size(cache->map), (int)cache->used_memory);
kh_foreach_value(cache->map, object, {
char oid_str[9];
Rprintf(" %s%c %s (%d)\n",
git_object_type2string(object->type),
object->flags == GIT_CACHE_STORE_PARSED ? '*' : ' ',
git_oid_tostr(oid_str, sizeof(oid_str), &object->oid),
(int)object->size
);
});
void git_cache_dump_stats(git_cache *cache)
{
git_cached_obj *object;
if (git_cache_size(cache) == 0)
return;
printf("Cache %p: %"PRIuZ" items cached, %"PRIdZ" bytes\n",
cache, git_cache_size(cache), cache->used_memory);
git_oidmap_foreach_value(cache->map, object, {
char oid_str[9];
printf(" %s%c %s (%"PRIuZ")\n",
git_object_type2string(object->type),
object->flags == GIT_CACHE_STORE_PARSED ? '*' : ' ',
git_oid_tostr(oid_str, sizeof(oid_str), &object->oid),
object->size
);
});
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 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;
}
PyObject *
TreeEntry_type__get__(TreeEntry *self)
{
return to_path(git_object_type2string(git_tree_entry_type(self->entry)));
}
/** Entry point for this command */
int main(int argc, char *argv[])
{
git_repository *repo;
struct opts o = { ".", NULL, 0, 0 };
git_object *obj = NULL;
char oidstr[GIT_OID_HEXSZ + 1];
git_libgit2_init();
parse_opts(&o, argc, argv);
check_lg2(git_repository_open_ext(&repo, o.dir, 0, NULL),
"Could not open repository", NULL);
check_lg2(git_revparse_single(&obj, repo, o.rev),
"Could not resolve", o.rev);
if (o.verbose) {
char oidstr[GIT_OID_HEXSZ + 1];
git_oid_tostr(oidstr, sizeof(oidstr), git_object_id(obj));
printf("%s %s\n--\n",
git_object_type2string(git_object_type(obj)), oidstr);
}
switch (o.action) {
case SHOW_TYPE:
printf("%s\n", git_object_type2string(git_object_type(obj)));
break;
case SHOW_SIZE: {
git_odb *odb;
git_odb_object *odbobj;
check_lg2(git_repository_odb(&odb, repo), "Could not open ODB", NULL);
check_lg2(git_odb_read(&odbobj, odb, git_object_id(obj)),
"Could not find obj", NULL);
printf("%ld\n", (long)git_odb_object_size(odbobj));
git_odb_object_free(odbobj);
git_odb_free(odb);
}
break;
case SHOW_NONE:
/* just want return result */
break;
case SHOW_PRETTY:
switch (git_object_type(obj)) {
case GIT_OBJ_BLOB:
show_blob((const git_blob *)obj);
break;
case GIT_OBJ_COMMIT:
show_commit((const git_commit *)obj);
break;
case GIT_OBJ_TREE:
show_tree((const git_tree *)obj);
break;
case GIT_OBJ_TAG:
show_tag((const git_tag *)obj);
break;
default:
printf("unknown %s\n", oidstr);
break;
}
break;
}
git_object_free(obj);
git_repository_free(repo);
git_libgit2_shutdown();
return 0;
}
int main(int argc, char *argv[])
{
const char *dir = ".", *rev = NULL;
int i, action = 0, verbose = 0;
git_object *obj = NULL;
char oidstr[GIT_OID_HEXSZ + 1];
git_threads_init();
for (i = 1; i < argc; ++i) {
char *a = argv[i];
if (a[0] != '-') {
if (rev != NULL)
usage("Only one rev should be provided", NULL);
else
rev = a;
}
else if (!strcmp(a, "-t"))
action = SHOW_TYPE;
else if (!strcmp(a, "-s"))
action = SHOW_SIZE;
else if (!strcmp(a, "-e"))
action = SHOW_NONE;
else if (!strcmp(a, "-p"))
action = SHOW_PRETTY;
else if (!strcmp(a, "-q"))
verbose = 0;
else if (!strcmp(a, "-v"))
verbose = 1;
else if (!strcmp(a, "--help") || !strcmp(a, "-h"))
usage(NULL, NULL);
else if (!check_str_param(a, "--git-dir=", &dir))
usage("Unknown option", a);
}
if (!action || !rev)
usage(NULL, NULL);
check(git_repository_open_ext(&g_repo, dir, 0, NULL),
"Could not open repository");
if (git_revparse_single(&obj, g_repo, rev) < 0) {
fprintf(stderr, "Could not resolve '%s'\n", rev);
exit(1);
}
if (verbose) {
char oidstr[GIT_OID_HEXSZ + 1];
git_oid_tostr(oidstr, sizeof(oidstr), git_object_id(obj));
printf("%s %s\n--\n",
git_object_type2string(git_object_type(obj)), oidstr);
}
switch (action) {
case SHOW_TYPE:
printf("%s\n", git_object_type2string(git_object_type(obj)));
break;
case SHOW_SIZE: {
git_odb *odb;
git_odb_object *odbobj;
check(git_repository_odb(&odb, g_repo), "Could not open ODB");
check(git_odb_read(&odbobj, odb, git_object_id(obj)),
"Could not find obj");
printf("%ld\n", (long)git_odb_object_size(odbobj));
git_odb_object_free(odbobj);
git_odb_free(odb);
}
break;
case SHOW_NONE:
/* just want return result */
break;
case SHOW_PRETTY:
switch (git_object_type(obj)) {
case GIT_OBJ_BLOB:
show_blob((const git_blob *)obj);
break;
case GIT_OBJ_COMMIT:
show_commit((const git_commit *)obj);
break;
case GIT_OBJ_TREE:
show_tree((const git_tree *)obj);
break;
case GIT_OBJ_TAG:
show_tag((const git_tag *)obj);
break;
default:
printf("unknown %s\n", oidstr);
break;
}
break;
}
git_object_free(obj);
git_repository_free(g_repo);
git_threads_shutdown();
return 0;
}
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;
}
std::string Object::type2String(git_otype type)
{
return std::string(git_object_type2string(type));
}
std::string Object::typeString() const
{
return std::string(git_object_type2string(git_object_type(data())));
}
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;
}
void print_obj(struct object *obj,size_t seq){
printf("%05ld: %s %5ld %s\n",seq,obj->strid,obj->size,git_object_type2string(obj->otype));
}
