src/lib.c: Write repo_tarballs_refs_each, calling stub tarzify() function

3 files changed, 95 insertions, 18 deletions

diff --git a/src/lib.c b/src/lib.c
index 0cee8f8..7813d13 100644
--- a/src/lib.c
+++ b/src/lib.c
@@ -1957,6 +1957,87 @@ cleanup:
 	return ret;
 }
 
+static int repo_tarballs_refs_each(
+	struct git_repository *const repo,
+	struct git_reference *const ref,
+	const char *const project_name
+) {
+	int ret = 0;
+	char *out = NULL;
+	struct git_commit *commit = NULL;
+	struct git_tree *tree = NULL;
+
+	const bool is_tag    = git_reference_is_tag(ref);
+	const bool is_branch = git_reference_is_branch(ref);
+
+	if (!is_branch || !is_tag) {
+		goto cleanup;
+	}
+
+	const char *const name = git_reference_shorthand(ref);
+	assert(name);
+	const struct git_oid *const oid = git_reference_target(ref);
+	assert(oid != NULL);
+
+	char template[] = "/tmp/gistatic.XXXXXX";
+	const char *const tmpdir = mkdtemp(template);
+	if (!tmpdir) {
+		logerrs("mkdtemp(", tmpdir, ")", strerror(errno), __LINE__);
+		ret = -1;
+		goto cleanup;
+	}
+	out = strsjoin((const char *const [])
+		{ tmpdir, "/", project_name, "-", name, NULL });
+	if (!out) {
+		ret = -1;
+		goto cleanup;
+	}
+
+	git_checkout_options options;
+	if (git_checkout_options_init(&options, GIT_CHECKOUT_OPTIONS_VERSION)) {
+		const git_error *const error = git_error_last();
+		assert(error);
+		logerr("git_checkout_options_init()", error->message, __LINE__);
+		ret = -1;
+		goto cleanup;
+	}
+
+	options.target_directory = out;
+	options.checkout_strategy =
+		GIT_CHECKOUT_SAFE | GIT_CHECKOUT_RECREATE_MISSING;
+
+	if (git_commit_lookup(&commit, repo, oid)) {
+		const git_error *const error = git_error_last();
+		assert(error);
+		logerrs("git_commit_lookup(", name, ")", error->message,
+			__LINE__);
+		ret = -1;
+		goto cleanup;
+	}
+
+	const struct git_object *const treeish =
+		(const git_object *const)commit;
+	if (git_checkout_tree(repo, treeish, &options)) {
+		const git_error *const error = git_error_last();
+		assert(error);
+		logerr("git_reference_iterator_new()", error->message,
+			__LINE__);
+		ret = -1;
+		goto cleanup;
+	}
+
+	if (tarzify(out)) {
+		ret = -1;
+		goto cleanup;
+	}
+
+cleanup:
+	git_tree_free(tree);
+	git_commit_free(commit);
+	free(out);
+	return ret;
+}
+
 static int repo_tarballs_write(
 	const char *const outdir,
 	struct git_repository *const repo,
@@ -1992,26 +2073,15 @@ static int repo_tarballs_write(
 
 	struct git_reference *ref;
 	while (!(e = git_reference_next(&ref, ref_iter))) {
-		const char *const name = git_reference_shorthand(ref);
-		assert(name);
-		const bool is_tag    = git_reference_is_tag(ref);
-		const bool is_branch = git_reference_is_branch(ref);
-		const bool is_note   = git_reference_is_note(ref);
-
-		if (!is_tag && !is_branch && !is_note) {
-			goto loop_cleanup;
+		e = repo_tarballs_refs_each(repo, ref, project_name);
+		git_reference_free(ref);
+		if (e == -1) {
+			ret = -1;
+			goto cleanup;
 		}
-		if (is_note && strcmp(name, "notes/signatures/tar.xz") != 0) {
-			goto loop_cleanup;
+		if (e) {
+			ret = 1;
 		}
-
-		// printf("reference name: %s\n", git_reference_shorthand(ref));
-
-		// https://github.com/ionescu007/minlzma
-		// https://git.tukaani.org/?p=xz.git;a=tree;f=src;h=665b39e6439f1bb5afd9181ec0890c2ed26d047e;hb=HEAD
-		// git archive --format tar.xz --prefix "$PROJECT-$tag/" "$tag"
-	loop_cleanup:
-		git_reference_free(ref);
 	}
 	if (e != GIT_ITEROVER) {
 		const git_error *const error = git_error_last();
diff --git a/src/tar.c b/src/tar.c
index 43a580c..e646dff 100644
--- a/src/tar.c
+++ b/src/tar.c
@@ -1,6 +1,11 @@
 #include "config.h"
 #include "tar.h"
 
+int tarzify(const char *const directory_path) {
+	(void)directory_path;
+	return 1;
+}
+
 #ifdef TEST
 void unit_tests_tar(void) {}
 #endif
diff --git a/src/tar.h b/src/tar.h
index 29c75bc..933fbf2 100644
--- a/src/tar.h
+++ b/src/tar.h
@@ -1,6 +1,8 @@
 #ifndef GISTATIC_TAR_H
 #define GISTATIC_TAR_H
 
+int tarzify(const char *const directory_path);
+
 #ifdef TEST
 void unit_tests_tar(void);
 #endif