thodg/libgit2/tests/submodule/submodule_helpers.c

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• Hash : e8ddd8d7
  Author :
  Date : 2015-09-17T17:49:32
  

  repo::reservedname: test a submodule update Test an initial submodule update, where we are trying to checkout the submodule for the first time, and placing a file within the submodule working directory with the same name as the submodule (and consequently, the same name as the repository itself).

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• tests/submodule/submodule_helpers.c

• #include "clar_libgit2.h"
  #include "buffer.h"
  #include "path.h"
  #include "util.h"
  #include "posix.h"
  #include "submodule_helpers.h"
  #include "git2/sys/repository.h"
  
  /* rewrite gitmodules -> .gitmodules
   * rewrite the empty or relative urls inside each module
   * rename the .gitted directory inside any submodule to .git
   */
  void rewrite_gitmodules(const char *workdir)
  {
  	git_buf in_f = GIT_BUF_INIT, out_f = GIT_BUF_INIT, path = GIT_BUF_INIT;
  	FILE *in, *out;
  	char line[256];
  
  	cl_git_pass(git_buf_joinpath(&in_f, workdir, "gitmodules"));
  	cl_git_pass(git_buf_joinpath(&out_f, workdir, ".gitmodules"));
  
  	cl_assert((in  = fopen(in_f.ptr, "rb")) != NULL);
  	cl_assert((out = fopen(out_f.ptr, "wb")) != NULL);
  
  	while (fgets(line, sizeof(line), in) != NULL) {
  		char *scan = line;
  
  		while (*scan == ' ' || *scan == '\t') scan++;
  
  		/* rename .gitted -> .git in submodule directories */
  		if (git__prefixcmp(scan, "path =") == 0) {
  			scan += strlen("path =");
  			while (*scan == ' ') scan++;
  
  			git_buf_joinpath(&path, workdir, scan);
  			git_buf_rtrim(&path);
  			git_buf_joinpath(&path, path.ptr, ".gitted");
  
  			if (!git_buf_oom(&path) && p_access(path.ptr, F_OK) == 0) {
  				git_buf_joinpath(&out_f, workdir, scan);
  				git_buf_rtrim(&out_f);
  				git_buf_joinpath(&out_f, out_f.ptr, ".git");
  
  				if (!git_buf_oom(&out_f))
  					p_rename(path.ptr, out_f.ptr);
  			}
  		}
  
  		/* copy non-"url =" lines verbatim */
  		if (git__prefixcmp(scan, "url =") != 0) {
  			fputs(line, out);
  			continue;
  		}
  
  		/* convert relative URLs in "url =" lines */
  		scan += strlen("url =");
  		while (*scan == ' ') scan++;
  
  		if (*scan == '.') {
  			git_buf_joinpath(&path, workdir, scan);
  			git_buf_rtrim(&path);
  		} else if (!*scan || *scan == '\n') {
  			git_buf_joinpath(&path, workdir, "../testrepo.git");
  		} else {
  			fputs(line, out);
  			continue;
  		}
  
  		git_path_prettify(&path, path.ptr, NULL);
  		git_buf_putc(&path, '\n');
  		cl_assert(!git_buf_oom(&path));
  
  		fwrite(line, scan - line, sizeof(char), out);
  		fputs(path.ptr, out);
  	}
  
  	fclose(in);
  	fclose(out);
  
  	cl_must_pass(p_unlink(in_f.ptr));
  
  	git_buf_free(&in_f);
  	git_buf_free(&out_f);
  	git_buf_free(&path);
  }
  
  static void cleanup_fixture_submodules(void *payload)
  {
  	cl_git_sandbox_cleanup(); /* either "submodules" or "submod2" */
  
  	if (payload)
  		cl_fixture_cleanup(payload);
  }
  
  git_repository *setup_fixture_submodules(void)
  {
  	git_repository *repo = cl_git_sandbox_init("submodules");
  
  	cl_fixture_sandbox("testrepo.git");
  
  	rewrite_gitmodules(git_repository_workdir(repo));
  	p_rename("submodules/testrepo/.gitted", "submodules/testrepo/.git");
  
  	cl_set_cleanup(cleanup_fixture_submodules, "testrepo.git");
  
  	cl_git_pass(git_repository_reinit_filesystem(repo, 1));
  
  	return repo;
  }
  
  git_repository *setup_fixture_submod2(void)
  {
  	git_repository *repo = cl_git_sandbox_init("submod2");
  
  	cl_fixture_sandbox("submod2_target");
  	p_rename("submod2_target/.gitted", "submod2_target/.git");
  
  	rewrite_gitmodules(git_repository_workdir(repo));
  	p_rename("submod2/not-submodule/.gitted", "submod2/not-submodule/.git");
  	p_rename("submod2/not/.gitted", "submod2/not/.git");
  
  	cl_set_cleanup(cleanup_fixture_submodules, "submod2_target");
  
  	cl_git_pass(git_repository_reinit_filesystem(repo, 1));
  
  	return repo;
  }
  
  git_repository *setup_fixture_super(void)
  {
  	git_repository *repo = cl_git_sandbox_init("super");
  
  	cl_fixture_sandbox("sub.git");
  	p_mkdir("super/sub", 0777);
  
  	rewrite_gitmodules(git_repository_workdir(repo));
  
  	cl_set_cleanup(cleanup_fixture_submodules, "sub.git");
  
  	cl_git_pass(git_repository_reinit_filesystem(repo, 1));
  
  	return repo;
  }
  
  git_repository *setup_fixture_submodule_simple(void)
  {
  	git_repository *repo = cl_git_sandbox_init("submodule_simple");
  
  	cl_fixture_sandbox("testrepo.git");
  	p_mkdir("submodule_simple/testrepo", 0777);
  
  	cl_set_cleanup(cleanup_fixture_submodules, "testrepo.git");
  
  	cl_git_pass(git_repository_reinit_filesystem(repo, 1));
  
  	return repo;
  }
  
  void assert__submodule_exists(
  	git_repository *repo, const char *name,
  	const char *msg, const char *file, int line)
  {
  	git_submodule *sm;
  	int error = git_submodule_lookup(&sm, repo, name);
  	if (error)
  		cl_git_report_failure(error, file, line, msg);
  	cl_assert_at_line(sm != NULL, file, line);
  	git_submodule_free(sm);
  }
  
  void refute__submodule_exists(
  	git_repository *repo, const char *name, int expected_error,
  	const char *msg, const char *file, int line)
  {
  	clar__assert_equal(
  		file, line, msg, 1, "%i",
  		expected_error, (int)(git_submodule_lookup(NULL, repo, name)));
  }
  
  unsigned int get_submodule_status(git_repository *repo, const char *name)
  {
  	unsigned int status = 0;
  
  	assert(repo && name);
  
  	cl_git_pass(git_submodule_status(&status, repo, name, GIT_SUBMODULE_IGNORE_UNSPECIFIED));
  
  	return status;
  }
  
  static int print_submodules(git_submodule *sm, const char *name, void *p)
  {
  	unsigned int loc = 0;
  	GIT_UNUSED(p);
  	git_submodule_location(&loc, sm);
  	fprintf(stderr, "# submodule %s (at %s) flags %x\n",
  		name, git_submodule_path(sm), loc);
  	return 0;
  }
  
  void dump_submodules(git_repository *repo)
  {
  	git_submodule_foreach(repo, print_submodules, NULL);
  }
  
  

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