thodg/libgit2/tests-clar/clar_helpers.c

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• Hash : da825c92
  Author :
  Date : 2012-06-19T14:27:02
  

  Make index add/append support core.filemode flag This fixes git_index_add and git_index_append to behave more like core git, preserving old filemode data in the index when adding and/or appending with core.filemode = false. This also has placeholder support for core.symlinks and core.ignorecase, but those flags are not implemented (well, symlinks has partial support for preserving mode information in the same way that git does, but it isn't tested).

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• tests-clar/clar_helpers.c

• #include "clar_libgit2.h"
  #include "posix.h"
  
  void clar_on_init(void)
  {
  	git_threads_init();
  }
  
  void clar_on_shutdown(void)
  {
  	git_threads_shutdown();
  }
  
  void cl_git_mkfile(const char *filename, const char *content)
  {
  	int fd;
  
  	fd = p_creat(filename, 0666);
  	cl_assert(fd != 0);
  
  	if (content) {
  		cl_must_pass(p_write(fd, content, strlen(content)));
  	} else {
  		cl_must_pass(p_write(fd, filename, strlen(filename)));
  		cl_must_pass(p_write(fd, "\n", 1));
  	}
  
  	cl_must_pass(p_close(fd));
  }
  
  void cl_git_write2file(
  	const char *filename, const char *new_content, int flags, unsigned int mode)
  {
  	int fd = p_open(filename, flags, mode);
  	cl_assert(fd >= 0);
  	if (!new_content)
  		new_content = "\n";
  	cl_must_pass(p_write(fd, new_content, strlen(new_content)));
  	cl_must_pass(p_close(fd));
  }
  
  void cl_git_append2file(const char *filename, const char *new_content)
  {
  	cl_git_write2file(filename, new_content, O_WRONLY | O_CREAT | O_APPEND, 0644);
  }
  
  void cl_git_rewritefile(const char *filename, const char *new_content)
  {
  	cl_git_write2file(filename, new_content, O_WRONLY | O_CREAT | O_TRUNC, 0644);
  }
  
  #ifdef GIT_WIN32
  
  #include "win32/utf-conv.h"
  
  char *cl_getenv(const char *name)
  {
  	wchar_t *name_utf16 = gitwin_to_utf16(name);
  	DWORD value_len, alloc_len;
  	wchar_t *value_utf16;
  	char *value_utf8;
  
  	cl_assert(name_utf16);
  	alloc_len = GetEnvironmentVariableW(name_utf16, NULL, 0);
  	if (alloc_len <= 0)
  		return NULL;
  
  	cl_assert(value_utf16 = git__calloc(alloc_len, sizeof(wchar_t)));
  
  	value_len = GetEnvironmentVariableW(name_utf16, value_utf16, alloc_len);
  	cl_assert_equal_i(value_len, alloc_len - 1);
  
  	cl_assert(value_utf8 = gitwin_from_utf16(value_utf16));
  
  	git__free(value_utf16);
  
  	return value_utf8;
  }
  
  int cl_setenv(const char *name, const char *value)
  {
  	wchar_t *name_utf16 = gitwin_to_utf16(name);
  	wchar_t *value_utf16 = value ? gitwin_to_utf16(value) : NULL;
  
  	cl_assert(name_utf16);
  	cl_assert(SetEnvironmentVariableW(name_utf16, value_utf16));
  
  	git__free(name_utf16);
  	git__free(value_utf16);
  
  	return 0;
  
  }
  #else
  
  #include <stdlib.h>
  char *cl_getenv(const char *name)
  {
     return getenv(name);
  }
  
  int cl_setenv(const char *name, const char *value)
  {
  	return (value == NULL) ? unsetenv(name) : setenv(name, value, 1);
  }
  #endif
  
  static const char *_cl_sandbox = NULL;
  static git_repository *_cl_repo = NULL;
  
  git_repository *cl_git_sandbox_init(const char *sandbox)
  {
  	/* Copy the whole sandbox folder from our fixtures to our test sandbox
  	 * area.  After this it can be accessed with `./sandbox`
  	 */
  	cl_fixture_sandbox(sandbox);
  	_cl_sandbox = sandbox;
  
  	cl_git_pass(p_chdir(sandbox));
  
  	/* If this is not a bare repo, then rename `sandbox/.gitted` to
  	 * `sandbox/.git` which must be done since we cannot store a folder
  	 * named `.git` inside the fixtures folder of our libgit2 repo.
  	 */
  	if (p_access(".gitted", F_OK) == 0)
  		cl_git_pass(p_rename(".gitted", ".git"));
  
  	/* If we have `gitattributes`, rename to `.gitattributes`.  This may
  	 * be necessary if we don't want the attributes to be applied in the
  	 * libgit2 repo, but just during testing.
  	 */
  	if (p_access("gitattributes", F_OK) == 0)
  		cl_git_pass(p_rename("gitattributes", ".gitattributes"));
  
  	/* As with `gitattributes`, we may need `gitignore` just for testing. */
  	if (p_access("gitignore", F_OK) == 0)
  		cl_git_pass(p_rename("gitignore", ".gitignore"));
  
  	cl_git_pass(p_chdir(".."));
  
  	/* Now open the sandbox repository and make it available for tests */
  	cl_git_pass(git_repository_open(&_cl_repo, sandbox));
  
  	return _cl_repo;
  }
  
  void cl_git_sandbox_cleanup(void)
  {
  	if (_cl_repo) {
  		git_repository_free(_cl_repo);
  		_cl_repo = NULL;
  	}
  	if (_cl_sandbox) {
  		cl_fixture_cleanup(_cl_sandbox);
  		_cl_sandbox = NULL;
  	}
  }
  
  bool cl_toggle_filemode(const char *filename)
  {
  	struct stat st1, st2;
  
  	cl_must_pass(p_stat(filename, &st1));
  	cl_must_pass(p_chmod(filename, st1.st_mode ^ 0100));
  	cl_must_pass(p_stat(filename, &st2));
  
  	return (st1.st_mode != st2.st_mode);
  }
  
  bool cl_is_chmod_supported(void)
  {
  	static int _is_supported = -1;
  
  	if (_is_supported < 0) {
  		cl_git_mkfile("filemode.t", "Test if filemode can be modified");
  		_is_supported = cl_toggle_filemode("filemode.t");
  		cl_must_pass(p_unlink("filemode.t"));
  	}
  
  	return _is_supported;
  }
  
  

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