void test_object_tag_read__parse_without_tagger(void) { // read and parse a tag without a tagger field git_repository *bad_tag_repo; git_tag *bad_tag; git_commit *commit; git_oid id, id_commit; // TODO: This is a little messy cl_git_pass(git_repository_open(&bad_tag_repo, cl_fixture("bad_tag.git"))); git_oid_fromstr(&id, bad_tag_id); git_oid_fromstr(&id_commit, badly_tagged_commit); cl_git_pass(git_tag_lookup(&bad_tag, bad_tag_repo, &id)); cl_assert(bad_tag != NULL); cl_assert_equal_s(git_tag_name(bad_tag), "e90810b"); cl_assert(git_oid_cmp(&id, git_tag_id(bad_tag)) == 0); cl_assert(bad_tag->tagger == NULL); cl_git_pass(git_tag_target((git_object **)&commit, bad_tag)); cl_assert(commit != NULL); cl_assert(git_oid_cmp(&id_commit, git_commit_id(commit)) == 0); git_tag_free(bad_tag); git_commit_free(commit); git_repository_free(bad_tag_repo); }
void test_object_tag_read__parse_without_message(void) { // read and parse a tag without a message field git_repository *short_tag_repo; git_tag *short_tag; git_commit *commit; git_oid id, id_commit; // TODO: This is a little messy cl_git_pass(git_repository_open(&short_tag_repo, cl_fixture("short_tag.git"))); git_oid_fromstr(&id, short_tag_id); git_oid_fromstr(&id_commit, short_tagged_commit); cl_git_pass(git_tag_lookup(&short_tag, short_tag_repo, &id)); cl_assert(short_tag != NULL); cl_assert_equal_s(git_tag_name(short_tag), "no_description"); cl_assert(git_oid_cmp(&id, git_tag_id(short_tag)) == 0); cl_assert(short_tag->message == NULL); cl_git_pass(git_tag_target((git_object **)&commit, short_tag)); cl_assert(commit != NULL); cl_assert(git_oid_cmp(&id_commit, git_commit_id(commit)) == 0); git_tag_free(short_tag); git_commit_free(commit); git_repository_free(short_tag_repo); }
static int mne_git_get_tag_tree(git_tree **tag_tree, git_reference **tag_ref, const char *ref_name) { int err = git_reference_lookup(tag_ref, repo, ref_name); mne_check_error("git_reference_lookup()", err, __FILE__, __LINE__); const git_oid *tag_oid = git_reference_oid(*tag_ref); assert(tag_oid != NULL); git_tag *tag; err = git_tag_lookup(&tag, repo, tag_oid); const git_oid *tag_commit_oid; if (err == GIT_ENOTFOUND) { /* Not a tag, must be a commit. */ tag_commit_oid = tag_oid; } else { err = mne_git_get_tag_commit_oid(&tag_commit_oid, tag); git_tag_free(tag); if (err != GIT_OK) return err; } git_commit *tag_commit; err = git_commit_lookup(&tag_commit, repo, tag_commit_oid); mne_check_error("git_commit_lookup()", err, __FILE__, __LINE__); err = git_commit_tree(tag_tree, tag_commit); mne_check_error("git_commit_tree()", err, __FILE__, __LINE__); git_commit_free(tag_commit); return MNE_GIT_OK; }
void test_object_tag_read__parse(void) { // read and parse a tag from the repository git_tag *tag1, *tag2; git_commit *commit; git_oid id1, id2, id_commit; git_oid_fromstr(&id1, tag1_id); git_oid_fromstr(&id2, tag2_id); git_oid_fromstr(&id_commit, tagged_commit); cl_git_pass(git_tag_lookup(&tag1, g_repo, &id1)); cl_assert_equal_s(git_tag_name(tag1), "test"); cl_assert(git_tag_type(tag1) == GIT_OBJ_TAG); cl_git_pass(git_tag_target((git_object **)&tag2, tag1)); cl_assert(tag2 != NULL); cl_assert(git_oid_cmp(&id2, git_tag_id(tag2)) == 0); cl_git_pass(git_tag_target((git_object **)&commit, tag2)); cl_assert(commit != NULL); cl_assert(git_oid_cmp(&id_commit, git_commit_id(commit)) == 0); git_tag_free(tag1); git_tag_free(tag2); git_commit_free(commit); }
emacs_value egit_tag_lookup(emacs_env *env, emacs_value _repo, emacs_value _oid) { EGIT_ASSERT_REPOSITORY(_repo); EM_ASSERT_STRING(_oid); git_repository *repo = EGIT_EXTRACT(_repo); git_oid oid; EGIT_EXTRACT_OID(_oid, oid); git_tag *tag; int retval = git_tag_lookup(&tag, repo, &oid); EGIT_CHECK_ERROR(retval); return egit_wrap(env, EGIT_TAG, tag, EM_EXTRACT_USER_PTR(_repo)); }
void test_object_tag_write__basic(void) { // write a tag to the repository and read it again git_tag *tag; git_oid target_id, tag_id; git_signature *tagger; const git_signature *tagger1; git_reference *ref_tag; git_object *target; git_oid_fromstr(&target_id, tagged_commit); cl_git_pass(git_object_lookup(&target, g_repo, &target_id, GIT_OBJ_COMMIT)); /* create signature */ cl_git_pass(git_signature_new(&tagger, tagger_name, tagger_email, 123456789, 60)); cl_git_pass( git_tag_create(&tag_id, g_repo, "the-tag", target, tagger, tagger_message, 0) ); git_object_free(target); git_signature_free(tagger); cl_git_pass(git_tag_lookup(&tag, g_repo, &tag_id)); cl_assert(git_oid_cmp(git_tag_target_oid(tag), &target_id) == 0); /* Check attributes were set correctly */ tagger1 = git_tag_tagger(tag); cl_assert(tagger1 != NULL); cl_assert_equal_s(tagger1->name, tagger_name); cl_assert_equal_s(tagger1->email, tagger_email); cl_assert(tagger1->when.time == 123456789); cl_assert(tagger1->when.offset == 60); cl_assert_equal_s(git_tag_message(tag), tagger_message); cl_git_pass(git_reference_lookup(&ref_tag, g_repo, "refs/tags/the-tag")); cl_assert(git_oid_cmp(git_reference_oid(ref_tag), &tag_id) == 0); cl_git_pass(git_reference_delete(ref_tag)); git_tag_free(tag); }
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; }
#include <git2/tag.h> #include <git2/revwalk.h> static const char *tag_id = "b25fa35b38051e4ae45d4222e795f9df2e43f1d1"; BEGIN_TEST(tag_writeback_test) git_oid id; git_repository *repo; git_tag *tag; /* char hex_oid[41]; */ must_pass(git_repository_open(&repo, REPOSITORY_FOLDER)); git_oid_mkstr(&id, tag_id); must_pass(git_tag_lookup(&tag, repo, &id)); git_tag_set_name(tag, "This is a different tag LOL"); must_pass(git_object_write((git_object *)tag)); /* git_oid_fmt(hex_oid, git_tag_id(tag)); hex_oid[40] = 0; printf("TAG New SHA1: %s\n", hex_oid); */ must_pass(remove_loose_object(REPOSITORY_FOLDER, (git_object *)tag)); git_repository_free(repo); END_TEST
static const char *tag2_id = "7b4384978d2493e851f9cca7858815fac9b10980"; static const char *tagged_commit = "e90810b8df3e80c413d903f631643c716887138d"; BEGIN_TEST(read0, "read and parse a tag from the repository") git_repository *repo; git_tag *tag1, *tag2; git_commit *commit; git_oid id1, id2, id_commit; must_pass(git_repository_open(&repo, REPOSITORY_FOLDER)); git_oid_mkstr(&id1, tag1_id); git_oid_mkstr(&id2, tag2_id); git_oid_mkstr(&id_commit, tagged_commit); must_pass(git_tag_lookup(&tag1, repo, &id1)); must_be_true(strcmp(git_tag_name(tag1), "test") == 0); must_be_true(git_tag_type(tag1) == GIT_OBJ_TAG); must_pass(git_tag_target((git_object **)&tag2, tag1)); must_be_true(tag2 != NULL); must_be_true(git_oid_cmp(&id2, git_tag_id(tag2)) == 0); must_pass(git_tag_target((git_object **)&commit, tag2)); must_be_true(commit != NULL); must_be_true(git_oid_cmp(&id_commit, git_commit_id(commit)) == 0); git_tag_close(tag1);
/** * Create tag targeting HEAD commit in repository. * * @param repo S4 class git_repository * @param name Name for the tag. * @param message The tag message. * @param tagger The tagger (author) of the tag * @return S4 object of class git_tag */ SEXP git2r_tag_create(SEXP repo, SEXP name, SEXP message, SEXP tagger) { SEXP result = R_NilValue; int err; git_oid oid; git_repository *repository = NULL; git_signature *sig_tagger = NULL; git_tag *tag = NULL; git_object *target = NULL; if (git2r_arg_check_string(name)) git2r_error(__func__, NULL, "'name'", git2r_err_string_arg); if (git2r_arg_check_string(message)) git2r_error(__func__, NULL, "'message'", git2r_err_string_arg); if (git2r_arg_check_signature(tagger)) git2r_error(__func__, NULL, "'tagger'", git2r_err_signature_arg); repository = git2r_repository_open(repo); if (!repository) git2r_error(__func__, NULL, git2r_err_invalid_repository, NULL); err = git2r_signature_from_arg(&sig_tagger, tagger); if (err) goto cleanup; err = git_revparse_single(&target, repository, "HEAD^{commit}"); if (err) goto cleanup; err = git_tag_create( &oid, repository, CHAR(STRING_ELT(name, 0)), target, sig_tagger, CHAR(STRING_ELT(message, 0)), 0); if (err) goto cleanup; err = git_tag_lookup(&tag, repository, &oid); if (err) goto cleanup; PROTECT(result = NEW_OBJECT(MAKE_CLASS("git_tag"))); git2r_tag_init(tag, repo, result); cleanup: if (tag) git_tag_free(tag); if (sig_tagger) git_signature_free(sig_tagger); if (target) git_object_free(target); if (repository) git_repository_free(repository); if (R_NilValue != result) UNPROTECT(1); if (err) git2r_error(__func__, giterr_last(), NULL, NULL); return result; }
static gboolean git_evtag_builtin_verify (struct EvTag *self, int argc, char **argv, GCancellable *cancellable, GError **error) { gboolean ret = FALSE; int r; gboolean verified = FALSE; GOptionContext *optcontext; git_oid tag_oid; git_object *obj = NULL; char *long_tagname = NULL; git_tag *tag; const char *tagname; const char *message; git_oid specified_oid; const char *nl; guint64 elapsed_ns; const char *expected_checksum; char commit_oid_hexstr[GIT_OID_HEXSZ+1]; char tag_oid_hexstr[GIT_OID_HEXSZ+1]; char *git_verify_tag_argv[] = {"git", "verify-tag", NULL, NULL }; optcontext = g_option_context_new ("TAGNAME - Verify a signed tag"); if (!option_context_parse (optcontext, verify_options, &argc, &argv, cancellable, error)) goto out; if (argc < 2) { g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "A TAGNAME argument is required"); goto out; } else if (argc > 2) { g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Too many arguments"); goto out; } tagname = argv[1]; long_tagname = g_strconcat ("refs/tags/", tagname, NULL); r = git_reference_name_to_id (&tag_oid, self->top_repo, long_tagname); if (!handle_libgit_ret (r, error)) goto out; r = git_tag_lookup (&tag, self->top_repo, &tag_oid); if (!handle_libgit_ret (r, error)) goto out; r = git_tag_target (&obj, tag); if (!handle_libgit_ret (r, error)) goto out; specified_oid = *git_object_id (obj); git_oid_fmt (commit_oid_hexstr, &specified_oid); commit_oid_hexstr[sizeof(commit_oid_hexstr)-1] = '\0'; if (!validate_at_head (self, &specified_oid, error)) goto out; message = git_tag_message (tag); if (!git_oid_tostr (tag_oid_hexstr, sizeof (tag_oid_hexstr), git_tag_id (tag))) g_assert_not_reached (); if (!opt_no_signature) { git_verify_tag_argv[2] = tag_oid_hexstr; if (!spawn_sync_require_success (git_verify_tag_argv, G_SPAWN_SEARCH_PATH, error)) goto out; } if (!checksum_commit_recurse (self, &specified_oid, &elapsed_ns, cancellable, error)) goto out; expected_checksum = g_checksum_get_string (self->checksum); while (TRUE) { nl = strchr (message, '\n'); if (g_str_has_prefix (message, EVTAG_SHA512)) { char *line; if (nl) line = g_strndup (message, nl - message); else line = g_strdup (message); g_strchomp (line); if (!verify_line (expected_checksum, line, commit_oid_hexstr, error)) goto out; { char *stats = get_stats (self); g_print ("%s\n", stats); g_free (stats); } g_print ("Successfully verified: %s\n", line); verified = TRUE; break; } if (!nl) break; message = nl + 1; } if (!verified) { g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED, "Failed to find %s in tag message", EVTAG_SHA512); goto out; } ret = TRUE; out: return ret; }