thodg/libgit2

diff --git a/include/git2/attr.h b/include/git2/attr.h
index d585937..f4c5975 100644
--- a/include/git2/attr.h
+++ b/include/git2/attr.h
@@ -50,6 +50,30 @@ GIT_EXTERN(int) git_attr_foreach(
 	int (*callback)(const char *name, const char *value, void *payload),
 	void *payload);
 
+/**
+ * Flush the gitattributes cache.
+ *
+ * Call this if you have reason to believe that the attributes files
+ * on disk no longer match the cached contents of memory.
+ */
+GIT_EXTERN(void) git_attr_cache_flush(
+	git_repository *repo);
+
+/**
+ * Add a macro definition.
+ *
+ * Macros will automatically be loaded from the top level .gitattributes
+ * file of the repository (plus the build-in "binary" macro).  This
+ * function allows you to add others.  For example, to add the default
+ * macro, you would call:
+ *
+ *    git_attr_add_macro(repo, "binary", "-diff -crlf");
+ */
+GIT_EXTERN(int) git_attr_add_macro(
+	git_repository *repo,
+	const char *name,
+	const char *values);
+
 /** @} */
 GIT_END_DECL
 #endif
diff --git a/src/attr.c b/src/attr.c
index d8e7095..fac2fa4 100644
--- a/src/attr.c
+++ b/src/attr.c
@@ -1,19 +1,17 @@
-#include "attr.h"
-#include "buffer.h"
+#include "repository.h"
 #include "fileops.h"
 #include "config.h"
 #include <ctype.h>
 
 #define GIT_ATTR_FILE_INREPO	"info/attributes"
 #define GIT_ATTR_FILE			".gitattributes"
-#define GIT_ATTR_FILE_SYSTEM	"/etc/gitattributes"
-#if GIT_WIN32
-#define GIT_ATTR_FILE_WIN32	L"%PROGRAMFILES%\\Git\\etc\\gitattributes"
-#endif
+#define GIT_ATTR_FILE_SYSTEM	"gitattributes"
 
 static int collect_attr_files(
 	git_repository *repo, const char *path, git_vector *files);
 
+static int attr_cache_init(git_repository *repo);
+
 
 int git_attr_get(
     git_repository *repo, const char *pathname,
@@ -180,6 +178,44 @@ cleanup:
 }
 
 
+int git_attr_add_macro(
+	git_repository *repo,
+	const char *name,
+	const char *values)
+{
+	int error;
+	git_attr_rule *macro = NULL;
+
+	if ((error = attr_cache_init(repo)) < GIT_SUCCESS)
+		return error;
+
+	macro = git__calloc(1, sizeof(git_attr_rule));
+	if (!macro)
+		return GIT_ENOMEM;
+
+	macro->match.pattern = git__strdup(name);
+	if (!macro->match.pattern) {
+		git__free(macro);
+		return GIT_ENOMEM;
+	}
+
+	macro->match.length = strlen(macro->match.pattern);
+	macro->match.flags = GIT_ATTR_FNMATCH_MACRO;
+
+	error = git_attr_assignment__parse(repo, &macro->assigns, &values);
+
+	if (error == GIT_SUCCESS)
+		error = git_attr_cache__insert_macro(repo, macro);
+
+	if (error < GIT_SUCCESS) {
+		git_attr_rule__free(macro);
+		git__free(macro);
+	}
+
+	return error;
+}
+
+
 /* add git_attr_file to vector of files, loading if needed */
 static int push_attrs(
 	git_repository *repo,
@@ -193,13 +229,6 @@ static int push_attrs(
 	git_attr_file *file;
 	int add_to_cache = 0;
 
-	if (cache->files == NULL) {
-		cache->files = git_hashtable_alloc(
-			8, git_hash__strhash_cb, git_hash__strcmp_cb);
-		if (!cache->files)
-			return git__throw(GIT_ENOMEM, "Could not create attribute cache");
-	}
-
 	if ((error = git_path_prettify(&path, filename, base)) < GIT_SUCCESS) {
 		if (error == GIT_EOSERR)
 			/* file was not found -- ignore error */
@@ -210,7 +239,7 @@ static int push_attrs(
 	/* either get attr_file from cache or read from disk */
 	file = git_hashtable_lookup(cache->files, path.ptr);
 	if (file == NULL) {
-		error = git_attr_file__from_file(&file, path.ptr);
+		error = git_attr_file__from_file(repo, path.ptr, &file);
 		add_to_cache = (error == GIT_SUCCESS);
 	}
 
@@ -238,6 +267,9 @@ static int collect_attr_files(
 	git_config *cfg;
 	const char *workdir = git_repository_workdir(repo);
 
+	if ((error = attr_cache_init(repo)) < GIT_SUCCESS)
+		goto cleanup;
+
 	if ((error = git_vector_init(files, 4, NULL)) < GIT_SUCCESS)
 		goto cleanup;
 
@@ -288,8 +320,13 @@ static int collect_attr_files(
 		git_config_free(cfg);
 	}
 
-	if (error == GIT_SUCCESS)
-		error = push_attrs(repo, files, NULL, GIT_ATTR_FILE_SYSTEM);
+	if (error == GIT_SUCCESS) {
+		error = git_futils_find_system_file(&dir, GIT_ATTR_FILE_SYSTEM);
+		if (error == GIT_SUCCESS)
+			error = push_attrs(repo, files, NULL, dir.ptr);
+		else if (error == GIT_ENOTFOUND)
+			error = GIT_SUCCESS;
+	}
 
  cleanup:
 	if (error < GIT_SUCCESS) {
@@ -302,10 +339,64 @@ static int collect_attr_files(
 }
 
 
-void git_repository__attr_cache_free(git_attr_cache *attrs)
+static int attr_cache_init(git_repository *repo)
 {
-	if (attrs && attrs->files) {
-		git_hashtable_free(attrs->files);
-		attrs->files = NULL;
+	int error = GIT_SUCCESS;
+	git_attr_cache *cache = &repo->attrcache;
+
+	if (cache->initialized)
+		return GIT_SUCCESS;
+
+	if (cache->files == NULL) {
+		cache->files = git_hashtable_alloc(
+			8, git_hash__strhash_cb, git_hash__strcmp_cb);
+		if (!cache->files)
+			return git__throw(GIT_ENOMEM, "Could not initialize attribute cache");
+	}
+
+	if (cache->macros == NULL) {
+		cache->macros = git_hashtable_alloc(
+			8, git_hash__strhash_cb, git_hash__strcmp_cb);
+		if (!cache->macros)
+			return git__throw(GIT_ENOMEM, "Could not initialize attribute cache");
 	}
+
+	cache->initialized = 1;
+
+	/* insert default macros */
+	error = git_attr_add_macro(repo, "binary", "-diff -crlf");
+
+	return error;
+}
+
+
+void git_attr_cache_flush(
+	git_repository *repo)
+{
+	if (!repo)
+		return;
+
+	if (repo->attrcache.files) {
+		const void *GIT_UNUSED(name);
+		git_attr_file *file;
+
+		GIT_HASHTABLE_FOREACH(repo->attrcache.files, name, file,
+			git_attr_file__free(file));
+
+		git_hashtable_free(repo->attrcache.files);
+		repo->attrcache.files = NULL;
+	}
+
+	if (repo->attrcache.macros) {
+		const void *GIT_UNUSED(name);
+		git_attr_rule *rule;
+
+		GIT_HASHTABLE_FOREACH(repo->attrcache.macros, name, rule,
+			git_attr_rule__free(rule));
+
+		git_hashtable_free(repo->attrcache.macros);
+		repo->attrcache.macros = NULL;
+	}
+
+	repo->attrcache.initialized = 0;
 }
diff --git a/src/attr.h b/src/attr.h
deleted file mode 100644
index 518fb9d..0000000
--- a/src/attr.h
+++ /dev/null
@@ -1,21 +0,0 @@
-/*
- * Copyright (C) 2009-2011 the libgit2 contributors
- *
- * This file is part of libgit2, distributed under the GNU GPL v2 with
- * a Linking Exception. For full terms see the included COPYING file.
- */
-#ifndef INCLUDE_attr_h__
-#define INCLUDE_attr_h__
-
-#include "hashtable.h"
-#include "attr_file.h"
-
-/* EXPORT */
-typedef struct {
-	git_hashtable *files;		/* hash path to git_attr_file */
-} git_attr_cache;
-
-extern void git_repository__attr_cache_free(git_attr_cache *attrs);
-
-#endif
-
diff --git a/src/attr_file.c b/src/attr_file.c
index 5d159db..0b1eb1f 100644
--- a/src/attr_file.c
+++ b/src/attr_file.c
@@ -1,17 +1,33 @@
 #include "common.h"
-#include "attr_file.h"
+#include "repository.h"
 #include "filebuf.h"
 #include <ctype.h>
 
 const char *git_attr__true  = "[internal]__TRUE__";
 const char *git_attr__false = "[internal]__FALSE__";
 
-static int parse_fnmatch(git_attr_fnmatch *spec, const char **base);
-static int parse_assigns(git_vector *assigns, const char **base);
-static int free_rule(git_attr_rule *rule);
+static int git_attr_fnmatch__parse(git_attr_fnmatch *spec, const char **base);
 static int sort_by_hash_and_name(const void *a_raw, const void *b_raw);
 
-int git_attr_file__from_buffer(git_attr_file **out, const char *buffer)
+int git_attr_cache__insert_macro(git_repository *repo, git_attr_rule *macro)
+{
+	unsigned int i;
+	git_attr_assignment *assign;
+
+	if (macro->assigns.length == 0)
+		return git__throw(GIT_EMISSINGOBJDATA, "git attribute macro with no values");
+
+	git_vector_foreach(&macro->assigns, i, assign) {
+		GIT_REFCOUNT_OWN(assign, macro);
+		GIT_REFCOUNT_INC(assign);
+	}
+
+	return git_hashtable_insert(
+		repo->attrcache.macros, macro->match.pattern, macro);
+}
+
+int git_attr_file__from_buffer(
+	git_repository *repo, const char *buffer, git_attr_file **out)
 {
 	int error = GIT_SUCCESS;
 	git_attr_file *attrs = NULL;
@@ -42,13 +58,21 @@ int git_attr_file__from_buffer(git_attr_file **out, const char *buffer)
 		}
 
 		/* parse the next "pattern attr attr attr" line */
-		if (!(error = parse_fnmatch(&rule->match, &scan)) &&
-			!(error = parse_assigns(&rule->assigns, &scan)))
-			error = git_vector_insert(&attrs->rules, rule);
+		if (!(error = git_attr_fnmatch__parse(&rule->match, &scan)) &&
+			!(error = git_attr_assignment__parse(repo, &rule->assigns, &scan)))
+		{
+			if (rule->match.flags & GIT_ATTR_FNMATCH_MACRO)
+				/* should generate error/warning if this is coming from any
+				 * file other than .gitattributes at repo root.
+				 */
+				error = git_attr_cache__insert_macro(repo, rule);
+			else
+				error = git_vector_insert(&attrs->rules, rule);
+		}
 
 		/* if the rule wasn't a pattern, on to the next */
 		if (error != GIT_SUCCESS) {
-			free_rule(rule); /* release anything partially allocated */
+			git_attr_rule__free(rule); /* free anything partially allocated */
 			if (error == GIT_ENOTFOUND)
 				error = GIT_SUCCESS;
 		} else {
@@ -58,6 +82,7 @@ int git_attr_file__from_buffer(git_attr_file **out, const char *buffer)
 
 cleanup:
 	if (error != GIT_SUCCESS) {
+		git__free(rule);
 		git_attr_file__free(attrs);
 		git__free(attrs);
 	} else {
@@ -67,7 +92,8 @@ cleanup:
 	return error;
 }
 
-int git_attr_file__from_file(git_attr_file **out, const char *path)
+int git_attr_file__from_file(
+	git_repository *repo, const char *path, git_attr_file **out)
 {
 	int error = GIT_SUCCESS;
 	git_fbuffer fbuf = GIT_FBUFFER_INIT;
@@ -75,7 +101,7 @@ int git_attr_file__from_file(git_attr_file **out, const char *path)
 	*out = NULL;
 
 	if ((error = git_futils_readbuffer(&fbuf, path)) < GIT_SUCCESS ||
-		(error = git_attr_file__from_buffer(out, fbuf.data)) < GIT_SUCCESS)
+		(error = git_attr_file__from_buffer(repo, fbuf.data, out)) < GIT_SUCCESS)
 	{
 		git__rethrow(error, "Could not open attribute file '%s'", path);
 	} else {
@@ -97,7 +123,7 @@ void git_attr_file__free(git_attr_file *file)
 		return;
 
 	git_vector_foreach(&file->rules, i, rule) {
-		free_rule(rule);
+		git_attr_rule__free(rule);
 	}
 
 	git_vector_free(&file->rules);
@@ -153,15 +179,15 @@ int git_attr_rule__match_path(
 {
 	int matched = FNM_NOMATCH;
 
-	if (rule->match.directory && !path->is_dir)
+	if (rule->match.flags & GIT_ATTR_FNMATCH_DIRECTORY && !path->is_dir)
 		return matched;
 
-	if (rule->match.fullpath)
+	if (rule->match.flags & GIT_ATTR_FNMATCH_FULLPATH)
 		matched = p_fnmatch(rule->match.pattern, path->path, FNM_PATHNAME);
 	else
 		matched = p_fnmatch(rule->match.pattern, path->basename, 0);
 
-	if (rule->match.negative)
+	if (rule->match.flags & GIT_ATTR_FNMATCH_NEGATIVE)
 		matched = (matched == GIT_SUCCESS) ? FNM_NOMATCH : GIT_SUCCESS;
 
 	return matched;
@@ -232,7 +258,7 @@ int git_attr_path__init(
  * GIT_ENOTFOUND if the fnmatch does not require matching, or
  * another error code there was an actual problem.
  */
-static int parse_fnmatch(
+static int git_attr_fnmatch__parse(
 	git_attr_fnmatch *spec,
 	const char **base)
 {
@@ -251,21 +277,31 @@ static int parse_fnmatch(
 		goto skip_to_eol;
 	}
 
+	spec->flags = 0;
+
+	if (*pattern == '[') {
+		if (strncmp(pattern, "[attr]", 6) == 0) {
+			spec->flags = spec->flags | GIT_ATTR_FNMATCH_MACRO;
+			pattern += 6;
+		} else {
+			/* unrecognized meta instructions - skip the line */
+			error = GIT_ENOTFOUND;
+			goto skip_to_eol;
+		}
+	}
+
 	if (*pattern == '!') {
-		spec->negative = 1;
+		spec->flags = spec->flags | GIT_ATTR_FNMATCH_NEGATIVE;
 		pattern++;
-	} else {
-		spec->negative = 0;
 	}
 
-	spec->fullpath = 0;
 	slash_count = 0;
 	for (scan = pattern; *scan != '\0'; ++scan) {
 		if (isspace(*scan) && *(scan - 1) != '\\')
 			break;
 
 		if (*scan == '/') {
-			spec->fullpath = 1;
+			spec->flags = spec->flags | GIT_ATTR_FNMATCH_FULLPATH;
 			slash_count++;
 		}
 	}
@@ -292,11 +328,9 @@ static int parse_fnmatch(
 	if (pattern[spec->length - 1] == '/') {
 		spec->length--;
 		spec->pattern[spec->length] = '\0';
-		spec->directory = 1;
+		spec->flags = spec->flags | GIT_ATTR_FNMATCH_DIRECTORY;
 		if (--slash_count <= 0)
-			spec->fullpath = 0;
-	} else {
-		spec->directory = 0;
+			spec->flags = spec->flags & ~GIT_ATTR_FNMATCH_FULLPATH;
 	}
 
 	return GIT_SUCCESS;
@@ -323,7 +357,21 @@ static int sort_by_hash_and_name(const void *a_raw, const void *b_raw)
 		return strcmp(b->name, a->name);
 }
 
-static int parse_assigns(
+static void free_assign(git_attr_assignment *assign)
+{
+	git__free(assign->name);
+	assign->name = NULL;
+
+	if (assign->is_allocated) {
+		git__free((void *)assign->value);
+		assign->value = NULL;
+	}
+
+	git__free(assign);
+}
+
+int git_attr_assignment__parse(
+	git_repository *repo,
 	git_vector *assigns,
 	const char **base)
 {
@@ -333,7 +381,7 @@ static int parse_assigns(
 
 	assert(assigns && !assigns->length);
 
-	while (*scan && *scan != '\n') {
+	while (*scan && *scan != '\n' && error == GIT_SUCCESS) {
 		const char *name_start, *value_start;
 
 		/* skip leading blanks */
@@ -369,8 +417,7 @@ static int parse_assigns(
 				((assign->name_hash << 5) + assign->name_hash) + *scan;
 			scan++;
 		}
-		assign->name_len = scan - name_start;
-		if (assign->name_len <= 0) {
+		if (scan == name_start) {
 			/* must have found lone prefix (" - ") or leading = ("=foo")
 			 * or end of buffer -- advance until whitespace and continue
 			 */
@@ -378,6 +425,13 @@ static int parse_assigns(
 			continue;
 		}
 
+		/* allocate permanent storage for name */
+		assign->name = git__strndup(name_start, scan - name_start);
+		if (!assign->name) {
+			error = GIT_ENOMEM;
+			break;
+		}
+
 		/* if there is an equals sign, find the value */
 		if (*scan == '=') {
 			for (value_start = ++scan; *scan && !isspace(*scan); ++scan);
@@ -394,11 +448,34 @@ static int parse_assigns(
 			}
 		}
 
-		/* allocate permanent storage for name */
-		assign->name = git__strndup(name_start, assign->name_len);
-		if (!assign->name) {
-			error = GIT_ENOMEM;
-			break;
+		/* expand macros (if given a repo) */
+		if (repo != NULL) {
+			git_attr_rule *macro =
+				git_hashtable_lookup(repo->attrcache.macros, assign->name);
+
+			if (macro != NULL) {
+				unsigned int i;
+				git_attr_assignment *massign;
+
+				/* issue warning: if assign->value != GIT_ATTR_TRUE */
+
+				git__free(assign->name);
+				assign->name = NULL;
+				if (assign->is_allocated) {
+					git__free((void *)assign->value);
+					assign->value = NULL;
+				}
+
+				git_vector_foreach(&macro->assigns, i, massign) {
+					error = git_vector_insert(assigns, massign);
+					if (error != GIT_SUCCESS)
+						break;
+					GIT_REFCOUNT_INC(&massign->rc);
+				}
+
+				/* continue to next assignment */
+				continue;
+			}
 		}
 
 		/* insert allocated assign into vector */
@@ -417,40 +494,34 @@ static int parse_assigns(
 		git_vector_sort(assigns);
 	}
 
-	if (assign != NULL) {
-		git__free(assign->name);
-		if (assign->is_allocated)
-			git__free((void *)assign->value);
-		git__free(assign);
-	}
+	if (assign != NULL)
+		free_assign(assign);
 
 	while (*scan && *scan != '\n') scan++;
+	if (*scan == '\n') scan++;
+
 	*base = scan;
 
 	return error;
 }
 
-static int free_rule(git_attr_rule *rule)
+void git_attr_rule__free(git_attr_rule *rule)
 {
 	unsigned int i;
 	git_attr_assignment *assign;
 
 	if (!rule)
-		return GIT_SUCCESS;
+		return;
 
 	git__free(rule->match.pattern);
 	rule->match.pattern = NULL;
 	rule->match.length = 0;
 
 	git_vector_foreach(&rule->assigns, i, assign) {
-		git__free(assign->name);
-		assign->name = NULL;
-
-		if (assign->is_allocated) {
-			git__free((void *)assign->value);
-			assign->value = NULL;
-		}
+		if (GIT_REFCOUNT_OWNER(assign) == rule)
+			GIT_REFCOUNT_OWN(assign, NULL);
+		GIT_REFCOUNT_DEC(assign, free_assign);
 	}
 
-	return GIT_SUCCESS;
+	git_vector_free(&rule->assigns);
 }
diff --git a/src/attr_file.h b/src/attr_file.h
index 4774f14..bed440d 100644
--- a/src/attr_file.h
+++ b/src/attr_file.h
@@ -9,36 +9,41 @@
 
 #include "git2/attr.h"
 #include "vector.h"
+#include "hashtable.h"
+
+#define GIT_ATTR_FNMATCH_NEGATIVE	(1U << 0)
+#define GIT_ATTR_FNMATCH_DIRECTORY	(1U << 1)
+#define GIT_ATTR_FNMATCH_FULLPATH	(1U << 2)
+#define GIT_ATTR_FNMATCH_MACRO		(1U << 3)
 
 typedef struct {
 	char *pattern;
 	size_t length;
-	int negative;
-	int directory;
-	int fullpath;
+	unsigned int flags;
 } git_attr_fnmatch;
 
 typedef struct {
+	git_refcount unused;
 	const char *name;
-	unsigned long name_hash;
+    unsigned long name_hash;
 } git_attr_name;
 
 typedef struct {
+	git_refcount rc;			/* for macros */
 	char *name;
     unsigned long name_hash;
-	size_t name_len;
     const char *value;
 	int is_allocated;
 } git_attr_assignment;
 
 typedef struct {
 	git_attr_fnmatch match;
-	git_vector assigns; /* <git_attr_assignment*> */
+	git_vector assigns;			/* vector of <git_attr_assignment*> */
 } git_attr_rule;
 
 typedef struct {
-	char *path;
-	git_vector rules; /* <git_attr_rule*> */
+	char *path;					/* cache the path this was loaded from */
+	git_vector rules;			/* vector of <git_attr_rule*> */
 } git_attr_file;
 
 typedef struct {
@@ -47,12 +52,20 @@ typedef struct {
 	int is_dir;
 } git_attr_path;
 
+typedef struct {
+	int initialized;
+	git_hashtable *files;	  /* hash path to git_attr_file */
+	git_hashtable *macros;	  /* hash name to vector<git_attr_assignment> */
+} git_attr_cache;
+
 /*
  * git_attr_file API
  */
 
-extern int git_attr_file__from_buffer(git_attr_file **out, const char *buf);
-extern int git_attr_file__from_file(git_attr_file **out, const char *path);
+extern int git_attr_file__from_buffer(
+	git_repository *repo, const char *buf, git_attr_file **out);
+extern int git_attr_file__from_file(
+	git_repository *repo, const char *path, git_attr_file **out);
 
 extern void git_attr_file__free(git_attr_file *file);
 
@@ -74,6 +87,8 @@ extern unsigned long git_attr_file__name_hash(const char *name);
  * other utilities
  */
 
+extern void git_attr_rule__free(git_attr_rule *rule);
+
 extern int git_attr_rule__match_path(
 	git_attr_rule *rule,
 	const git_attr_path *path);
@@ -84,4 +99,12 @@ extern git_attr_assignment *git_attr_rule__lookup_assignment(
 extern int git_attr_path__init(
 	git_attr_path *info, const char *path);
 
+extern int git_attr_assignment__parse(
+	git_repository *repo, /* needed to expand macros */
+	git_vector *assigns,
+	const char **scan);
+
+extern int git_attr_cache__insert_macro(
+	git_repository *repo, git_attr_rule *macro);
+
 #endif
diff --git a/src/config.c b/src/config.c
index ed7c947..29f1ee2 100644
--- a/src/config.c
+++ b/src/config.c
@@ -337,6 +337,11 @@ int git_config_get_string(git_config *cfg, const char *name, const char **out)
 	return git__throw(error, "Config value '%s' not found", name);
 }
 
+int git_config_find_global_r(git_buf *path)
+{
+	return git_futils_find_global_file(path, GIT_CONFIG_FILENAME);
+}
+
 int git_config_find_global(char *global_config_path)
 {
 	git_buf path  = GIT_BUF_INIT;
@@ -354,79 +359,9 @@ int git_config_find_global(char *global_config_path)
 	return error;
 }
 
-int git_config_find_global_r(git_buf *path)
+int git_config_find_system_r(git_buf *path)
 {
-	int error;
-	const char *home = getenv("HOME");
-
-#ifdef GIT_WIN32
-	if (home == NULL)
-		home = getenv("USERPROFILE");
-#endif
-
-	if (home == NULL)
-		return git__throw(GIT_EOSERR, "Failed to open global config file. Cannot locate the user's home directory");
-
-	if ((error = git_buf_joinpath(path, home, GIT_CONFIG_FILENAME)) < GIT_SUCCESS)
-		return error;
-
-	if (git_futils_exists(path->ptr) < GIT_SUCCESS) {
-		git_buf_clear(path);
-		return git__throw(GIT_EOSERR, "Failed to open global config file. The file does not exist");
-	}
-
-	return GIT_SUCCESS;
-}
-
-
-
-#if GIT_WIN32
-static int win32_find_system(git_buf *system_config_path)
-{
-	const wchar_t *query = L"%PROGRAMFILES%\\Git\\etc\\gitconfig";
-	wchar_t *apphome_utf16;
-	char *apphome_utf8;
-	DWORD size, ret;
-
-	size = ExpandEnvironmentStringsW(query, NULL, 0);
-	/* The function gave us the full size of the buffer in chars, including NUL */
-	apphome_utf16 = git__malloc(size * sizeof(wchar_t));
-	if (apphome_utf16 == NULL)
-		return GIT_ENOMEM;
-
-	ret = ExpandEnvironmentStringsW(query, apphome_utf16, size);
-	if (ret != size)
-		return git__throw(GIT_ERROR, "Failed to expand environment strings");
-
-	if (_waccess(apphome_utf16, F_OK) < 0) {
-		git__free(apphome_utf16);
-		return GIT_ENOTFOUND;
-	}
-
-	apphome_utf8 = gitwin_from_utf16(apphome_utf16);
-	git__free(apphome_utf16);
-
-	git_buf_attach(system_config_path, apphome_utf8, 0);
-
-	return GIT_SUCCESS;
-}
-#endif
-
-int git_config_find_system_r(git_buf *system_config_path)
-{
-	if (git_buf_sets(system_config_path, "/etc/gitconfig") < GIT_SUCCESS)
-		return git_buf_lasterror(system_config_path);
-
-	if (git_futils_exists(system_config_path->ptr) == GIT_SUCCESS)
-		return GIT_SUCCESS;
-
-	git_buf_clear(system_config_path);
-
-#if GIT_WIN32
-	return win32_find_system(system_config_path);
-#else
-	return GIT_ENOTFOUND;
-#endif
+	return git_futils_find_system_file(path, GIT_CONFIG_FILENAME_SYSTEM);
 }
 
 int git_config_find_system(char *system_config_path)
diff --git a/src/config.h b/src/config.h
index fc639c6..6345b0a 100644
--- a/src/config.h
+++ b/src/config.h
@@ -14,6 +14,7 @@
 
 #define GIT_CONFIG_FILENAME ".gitconfig"
 #define GIT_CONFIG_FILENAME_INREPO "config"
+#define GIT_CONFIG_FILENAME_SYSTEM "gitconfig"
 #define GIT_CONFIG_FILE_MODE 0666
 
 struct git_config {
diff --git a/src/fileops.c b/src/fileops.c
index fb2f954..5eb7bf6 100644
--- a/src/fileops.c
+++ b/src/fileops.c
@@ -403,3 +403,134 @@ int git_futils_contains_file(git_buf *base, const char *file, int append_if_exis
 	return _check_dir_contents(base, file, append_if_exists, &git_futils_isfile);
 }
 
+int git_futils_find_global_file(git_buf *path, const char *filename)
+{
+	int error;
+	const char *home = getenv("HOME");
+
+#ifdef GIT_WIN32
+	if (home == NULL)
+		home = getenv("USERPROFILE");
+#endif
+
+	if (home == NULL)
+		return git__throw(GIT_EOSERR, "Failed to open global %s file. "
+			"Cannot locate the user's home directory.", filename);
+
+	if ((error = git_buf_joinpath(path, home, filename)) < GIT_SUCCESS)
+		return error;
+
+	if (git_futils_exists(path->ptr) < GIT_SUCCESS) {
+		git_buf_clear(path);
+		return GIT_ENOTFOUND;
+	}
+
+	return GIT_SUCCESS;
+}
+
+#ifdef GIT_WIN32
+typedef struct {
+	wchar_t *path;
+	DWORD len;
+} win32_path;
+
+static const win32_path *win32_system_root(void)
+{
+	static win32_path s_root = { 0, 0 };
+
+	if (s_root.path == NULL) {
+		const wchar_t *root_tmpl = L"%PROGRAMFILES%\\Git\\etc\\";
+
+		s_root.len = ExpandEnvironmentStringsW(root_tmpl, NULL, 0);
+
+		if (s_root.len <= 0) {
+			git__throw(GIT_EOSERR, "Failed to expand environment strings");
+			return NULL;
+		}
+
+		s_root.path = git__calloc(s_root.len, sizeof(wchar_t));
+		if (s_root.path == NULL)
+			return NULL;
+
+		if (ExpandEnvironmentStringsW(root_tmpl, s_root.path, s_root.len) != s_root.len) {
+			git__throw(GIT_EOSERR, "Failed to expand environment strings");
+			git__free(s_root.path);
+			s_root.path = NULL;
+			return NULL;
+		}
+	}
+
+	return &s_root;
+}
+
+static int win32_find_system_file(git_buf *path, const char *filename)
+{
+	int error = GIT_SUCCESS;
+	const win32_path *root = win32_system_root();
+	size_t len;
+	wchar_t *file_utf16 = NULL, *scan;
+	char *file_utf8 = NULL;
+
+	if (!root || !filename || (len = strlen(filename)) == 0)
+		return GIT_ENOTFOUND;
+
+	/* allocate space for wchar_t path to file */
+	file_utf16 = git__calloc(root->len + len + 2, sizeof(wchar_t));
+	if (!file_utf16)
+		return GIT_ENOMEM;
+
+	/* append root + '\\' + filename as wchar_t */
+	memcpy(file_utf16, root->path, root->len * sizeof(wchar_t));
+
+	if (*filename == '/' || *filename == '\\')
+		filename++;
+
+	if (gitwin_append_utf16(file_utf16 + root->len - 1, filename, len + 1) !=
+		(int)len) {
+		error = git__throw(GIT_EOSERR, "Failed to build file path");
+		goto cleanup;
+	}
+
+	for (scan = file_utf16; *scan; scan++)
+		if (*scan == L'/')
+			*scan = L'\\';
+
+	/* check access */
+	if (_waccess(file_utf16, F_OK) < 0) {
+		error = GIT_ENOTFOUND;
+		goto cleanup;
+	}
+
+	/* convert to utf8 */
+	if ((file_utf8 = gitwin_from_utf16(file_utf16)) == NULL)
+		error = GIT_ENOMEM;
+
+	if (file_utf8) {
+		git_path_mkposix(file_utf8);
+		git_buf_attach(path, file_utf8, 0);
+	}
+
+cleanup:
+	git__free(file_utf16);
+
+	return error;
+}
+#endif
+
+int git_futils_find_system_file(git_buf *path, const char *filename)
+{
+	if (git_buf_joinpath(path, "/etc", filename) < GIT_SUCCESS)
+		return git_buf_lasterror(path);
+
+	if (git_futils_exists(path->ptr) == GIT_SUCCESS)
+		return GIT_SUCCESS;
+
+	git_buf_clear(path);
+
+#ifdef GIT_WIN32
+	return win32_find_system_file(path, filename);
+#else
+	return GIT_ENOTFOUND;
+#endif
+}
+
diff --git a/src/fileops.h b/src/fileops.h
index df135d0..31f3e6a 100644
--- a/src/fileops.h
+++ b/src/fileops.h
@@ -165,4 +165,28 @@ extern int git_futils_direach(
 extern int git_futils_cmp_path(const char *name1, int len1, int isdir1,
 		const char *name2, int len2, int isdir2);
 
+/**
+ * Find a "global" file (i.e. one in a user's home directory).
+ *
+ * @param pathbuf buffer to write the full path into
+ * @param filename name of file to find in the home directory
+ * @return
+ * - GIT_SUCCESS if found;
+ * - GIT_ENOTFOUND if not found;
+ * - GIT_EOSERR on an unspecified OS related error.
+ */
+extern int git_futils_find_global_file(git_buf *path, const char *filename);
+
+/**
+ * Find a "system" file (i.e. one shared for all users of the system).
+ *
+ * @param pathbuf buffer to write the full path into
+ * @param filename name of file to find in the home directory
+ * @return
+ * - GIT_SUCCESS if found;
+ * - GIT_ENOTFOUND if not found;
+ * - GIT_EOSERR on an unspecified OS related error.
+ */
+extern int git_futils_find_system_file(git_buf *path, const char *filename);
+
 #endif /* INCLUDE_fileops_h__ */
diff --git a/src/repository.c b/src/repository.c
index e0d4c63..a94ecce 100644
--- a/src/repository.c
+++ b/src/repository.c
@@ -59,7 +59,7 @@ void git_repository_free(git_repository *repo)
 
 	git_cache_free(&repo->objects);
 	git_repository__refcache_free(&repo->references);
-	git_repository__attr_cache_free(&repo->attrcache);
+	git_attr_cache_flush(repo);
 
 	git__free(repo->path_repository);
 	git__free(repo->workdir);
diff --git a/src/repository.h b/src/repository.h
index 5274fc1..8205215 100644
--- a/src/repository.h
+++ b/src/repository.h
@@ -19,7 +19,7 @@
 #include "refs.h"
 #include "buffer.h"
 #include "odb.h"
-#include "attr.h"
+#include "attr_file.h"
 
 #define DOT_GIT ".git"
 #define GIT_DIR DOT_GIT "/"
diff --git a/src/util.h b/src/util.h
index be978a6..4b1104b 100644
--- a/src/util.h
+++ b/src/util.h
@@ -109,7 +109,6 @@ extern void **git__bsearch(const void *key, void **base, size_t nmemb,
 	int (*compar)(const void *, const void *));
 
 extern int git__strcmp_cb(const void *a, const void *b);
-extern uint32_t git__strhash_cb(const void *key, int hash_id);
 
 typedef struct {
 	short refcount;
diff --git a/src/win32/utf-conv.c b/src/win32/utf-conv.c
index b41c78f..b1b838e 100644
--- a/src/win32/utf-conv.c
+++ b/src/win32/utf-conv.c
@@ -57,6 +57,11 @@ wchar_t* gitwin_to_utf16(const char* str)
 	return ret;
 }
 
+int gitwin_append_utf16(wchar_t *buffer, const char *str, size_t len)
+{
+	return MultiByteToWideChar(_active_codepage, 0, str, -1, buffer, len);
+}
+
 char* gitwin_from_utf16(const wchar_t* str)
 {
 	char* ret;
diff --git a/src/win32/utf-conv.h b/src/win32/utf-conv.h
index da03e33..bbb5c4f 100644
--- a/src/win32/utf-conv.h
+++ b/src/win32/utf-conv.h
@@ -11,6 +11,7 @@
 #define INCLUDE_git_utfconv_h__
 
 wchar_t* gitwin_to_utf16(const char* str);
+int gitwin_append_utf16(wchar_t *buffer, const char *str, size_t len)
 char* gitwin_from_utf16(const wchar_t* str);
 
 #endif
diff --git a/tests-clay/attr/file.c b/tests-clay/attr/file.c
index 0a5bff5..d9e2d57 100644
--- a/tests-clay/attr/file.c
+++ b/tests-clay/attr/file.c
@@ -8,7 +8,7 @@ void test_attr_file__simple_read(void)
 {
 	git_attr_file *file = NULL;
 
-	cl_git_pass(git_attr_file__from_file(&file, cl_fixture("attr/attr0")));
+	cl_git_pass(git_attr_file__from_file(NULL, cl_fixture("attr/attr0"), &file));
 	cl_assert_strequal(cl_fixture("attr/attr0"), file->path);
 	cl_assert(file->rules.length == 1);
 
@@ -16,15 +16,12 @@ void test_attr_file__simple_read(void)
 	cl_assert(rule != NULL);
 	cl_assert_strequal("*", rule->match.pattern);
 	cl_assert(rule->match.length == 1);
-	cl_assert(!rule->match.negative);
-	cl_assert(!rule->match.directory);
-	cl_assert(!rule->match.fullpath);
+	cl_assert(rule->match.flags == 0);
 
 	cl_assert(rule->assigns.length == 1);
 	git_attr_assignment *assign = get_assign(rule, 0);
 	cl_assert(assign != NULL);
 	cl_assert_strequal("binary", assign->name);
-	cl_assert(assign->name_len == 6);
 	cl_assert(assign->value == GIT_ATTR_TRUE);
 	cl_assert(!assign->is_allocated);
 
@@ -37,7 +34,7 @@ void test_attr_file__match_variants(void)
 	git_attr_rule *rule;
 	git_attr_assignment *assign;
 
-	cl_git_pass(git_attr_file__from_file(&file, cl_fixture("attr/attr1")));
+	cl_git_pass(git_attr_file__from_file(NULL, cl_fixture("attr/attr1"), &file));
 	cl_assert_strequal(cl_fixture("attr/attr1"), file->path);
 	cl_assert(file->rules.length == 10);
 
@@ -48,38 +45,31 @@ void test_attr_file__match_variants(void)
 	cl_assert(rule);
 	cl_assert_strequal("pat0", rule->match.pattern);
 	cl_assert(rule->match.length == strlen("pat0"));
-	cl_assert(!rule->match.negative);
-	cl_assert(!rule->match.directory);
-	cl_assert(!rule->match.fullpath);
+	cl_assert(rule->match.flags == 0);
 	cl_assert(rule->assigns.length == 1);
 	assign = get_assign(rule,0);
 	cl_assert_strequal("attr0", assign->name);
 	cl_assert(assign->name_hash == git_attr_file__name_hash(assign->name));
-	cl_assert(assign->name_len == strlen("attr0"));
 	cl_assert(assign->value == GIT_ATTR_TRUE);
 	cl_assert(!assign->is_allocated);
 
 	rule = get_rule(1);
 	cl_assert_strequal("pat1", rule->match.pattern);
 	cl_assert(rule->match.length == strlen("pat1"));
-	cl_assert(rule->match.negative);
+	cl_assert(rule->match.flags == GIT_ATTR_FNMATCH_NEGATIVE);
 
 	rule = get_rule(2);
 	cl_assert_strequal("pat2", rule->match.pattern);
 	cl_assert(rule->match.length == strlen("pat2"));
-	cl_assert(rule->match.directory);
-	cl_assert(!rule->match.fullpath);
+	cl_assert(rule->match.flags == GIT_ATTR_FNMATCH_DIRECTORY);
 
 	rule = get_rule(3);
 	cl_assert_strequal("pat3dir/pat3file", rule->match.pattern);
-	cl_assert(!rule->match.directory);
-	cl_assert(rule->match.fullpath);
+	cl_assert(rule->match.flags == GIT_ATTR_FNMATCH_FULLPATH);
 
 	rule = get_rule(4);
 	cl_assert_strequal("pat4.*", rule->match.pattern);
-	cl_assert(!rule->match.negative);
-	cl_assert(!rule->match.directory);
-	cl_assert(!rule->match.fullpath);
+	cl_assert(rule->match.flags == 0);
 
 	rule = get_rule(5);
 	cl_assert_strequal("*.pat5", rule->match.pattern);
@@ -94,9 +84,7 @@ void test_attr_file__match_variants(void)
 	rule = get_rule(8);
 	cl_assert_strequal("pat8 with spaces", rule->match.pattern);
 	cl_assert(rule->match.length == strlen("pat8 with spaces"));
-	cl_assert(!rule->match.negative);
-	cl_assert(!rule->match.directory);
-	cl_assert(!rule->match.fullpath);
+	cl_assert(rule->match.flags == 0);
 
 	rule = get_rule(9);
 	cl_assert_strequal("pat9", rule->match.pattern);
@@ -120,7 +108,6 @@ static void check_one_assign(
 	cl_assert(rule->assigns.length == 1);
 	cl_assert_strequal(name, assign->name);
 	cl_assert(assign->name_hash == git_attr_file__name_hash(assign->name));
-	cl_assert(assign->name_len == strlen(name));
 	cl_assert(assign->is_allocated == is_allocated);
 	if (is_allocated)
 		cl_assert_strequal(value, assign->value);
@@ -134,7 +121,7 @@ void test_attr_file__assign_variants(void)
 	git_attr_rule *rule;
 	git_attr_assignment *assign;
 
-	cl_git_pass(git_attr_file__from_file(&file, cl_fixture("attr/attr2")));
+	cl_git_pass(git_attr_file__from_file(NULL, cl_fixture("attr/attr2"), &file));
 	cl_assert_strequal(cl_fixture("attr/attr2"), file->path);
 	cl_assert(file->rules.length == 11);
 
@@ -199,7 +186,7 @@ void test_attr_file__check_attr_examples(void)
 	git_attr_rule *rule;
 	git_attr_assignment *assign;
 
-	cl_git_pass(git_attr_file__from_file(&file, cl_fixture("attr/attr3")));
+	cl_git_pass(git_attr_file__from_file(NULL, cl_fixture("attr/attr3"), &file));
 	cl_assert_strequal(cl_fixture("attr/attr3"), file->path);
 	cl_assert(file->rules.length == 3);
 
diff --git a/tests-clay/attr/lookup.c b/tests-clay/attr/lookup.c
index 870dcd3..fcade52 100644
--- a/tests-clay/attr/lookup.c
+++ b/tests-clay/attr/lookup.c
@@ -1,5 +1,5 @@
 #include "clay_libgit2.h"
-#include "attr.h"
+#include "attr_file.h"
 
 void test_attr_lookup__simple(void)
 {
@@ -7,7 +7,7 @@ void test_attr_lookup__simple(void)
 	git_attr_path path;
 	const char *value = NULL;
 
-	cl_git_pass(git_attr_file__from_file(&file, cl_fixture("attr/attr0")));
+	cl_git_pass(git_attr_file__from_file(NULL, cl_fixture("attr/attr0"), &file));
 	cl_assert_strequal(cl_fixture("attr/attr0"), file->path);
 	cl_assert(file->rules.length == 1);
 
@@ -41,10 +41,6 @@ static void run_test_cases(git_attr_file *file, test_case *cases)
 	int error;
 
 	for (c = cases; c->path != NULL; c++) {
-		/* Put this in because I was surprised that all the tests passed */
-		/* fprintf(stderr, "checking '%s' attr %s == %s\n", */
-		/* 		c->path, c->attr, c->expected); */
-
 		cl_git_pass(git_attr_path__init(&path, c->path));
 
 		if (c->force_dir)
@@ -136,7 +132,7 @@ void test_attr_lookup__match_variants(void)
 		{ NULL, NULL, NULL, 0, 0 }
 	};
 
-	cl_git_pass(git_attr_file__from_file(&file, cl_fixture("attr/attr1")));
+	cl_git_pass(git_attr_file__from_file(NULL, cl_fixture("attr/attr1"), &file));
 	cl_assert_strequal(cl_fixture("attr/attr1"), file->path);
 	cl_assert(file->rules.length == 10);
 
@@ -194,7 +190,7 @@ void test_attr_lookup__assign_variants(void)
 		{ NULL, NULL, NULL, 0, 0 }
 	};
 
-	cl_git_pass(git_attr_file__from_file(&file, cl_fixture("attr/attr2")));
+	cl_git_pass(git_attr_file__from_file(NULL, cl_fixture("attr/attr2"), &file));
 	cl_assert(file->rules.length == 11);
 
 	run_test_cases(file, cases);
@@ -228,7 +224,31 @@ void test_attr_lookup__check_attr_examples(void)
 		{ NULL, NULL, NULL, 0, 0 }
 	};
 
-	cl_git_pass(git_attr_file__from_file(&file, cl_fixture("attr/attr3")));
+	cl_git_pass(git_attr_file__from_file(NULL, cl_fixture("attr/attr3"), &file));
+	cl_assert(file->rules.length == 3);
+
+	run_test_cases(file, cases);
+
+	git_attr_file__free(file);
+}
+
+void test_attr_lookup__from_buffer(void)
+{
+	git_attr_file *file = NULL;
+	test_case cases[] = {
+		{ "abc", "foo", GIT_ATTR_TRUE, 0, 0 },
+		{ "abc", "bar", GIT_ATTR_TRUE, 0, 0 },
+		{ "abc", "baz", GIT_ATTR_TRUE, 0, 0 },
+		{ "aaa", "foo", GIT_ATTR_TRUE, 0, 0 },
+		{ "aaa", "bar", NULL, 0, 0 },
+		{ "aaa", "baz", GIT_ATTR_TRUE, 0, 0 },
+		{ "qqq", "foo", NULL, 0, 0 },
+		{ "qqq", "bar", NULL, 0, 0 },
+		{ "qqq", "baz", GIT_ATTR_TRUE, 0, 0 },
+		{ NULL, NULL, NULL, 0, 0 }
+	};
+
+	cl_git_pass(git_attr_file__from_buffer(NULL, "a* foo\nabc bar\n* baz", &file));
 	cl_assert(file->rules.length == 3);
 
 	run_test_cases(file, cases);
diff --git a/tests-clay/attr/repo.c b/tests-clay/attr/repo.c
index b6815f3..e80e24d 100644
--- a/tests-clay/attr/repo.c
+++ b/tests-clay/attr/repo.c
@@ -6,11 +6,14 @@ static git_repository *g_repo = NULL;
 
 void test_attr_repo__initialize(void)
 {
-	/* before each test, instantiate the attr repo from the fixtures and
+	/* Before each test, instantiate the attr repo from the fixtures and
 	 * rename the .gitted to .git so it is a repo with a working dir.
+	 * Also rename gitattributes to .gitattributes, because it contains
+	 * macro definitions which are only allowed in the root.
 	 */
 	cl_fixture_sandbox("attr");
 	cl_git_pass(p_rename("attr/.gitted", "attr/.git"));
+	cl_git_pass(p_rename("attr/gitattributes", "attr/.gitattributes"));
 	cl_git_pass(git_repository_open(&g_repo, "attr/.git"));
 }
 
@@ -138,3 +141,46 @@ void test_attr_repo__foreach(void)
 		&count_attrs, &count));
 	cl_assert(count == 5); /* repoattr, rootattr, subattr, negattr, another */
 }
+
+void test_attr_repo__manpage_example(void)
+{
+	const char *value;
+
+	cl_git_pass(git_attr_get(g_repo, "subdir/abc", "foo", &value));
+	cl_assert(value == GIT_ATTR_TRUE);
+
+	cl_git_pass(git_attr_get(g_repo, "subdir/abc", "bar", &value));
+	cl_assert(value == NULL);
+
+	cl_git_pass(git_attr_get(g_repo, "subdir/abc", "baz", &value));
+	cl_assert(value == GIT_ATTR_FALSE);
+
+	cl_git_pass(git_attr_get(g_repo, "subdir/abc", "merge", &value));
+	cl_assert_strequal("filfre", value);
+
+	cl_git_pass(git_attr_get(g_repo, "subdir/abc", "frotz", &value));
+	cl_assert(value == NULL);
+}
+
+void test_attr_repo__macros(void)
+{
+	const char *names[5] = { "rootattr", "binary", "diff", "crlf", "frotz" };
+	const char *names2[5] = { "mymacro", "positive", "negative", "rootattr", "another" };
+	const char *values[5];
+
+	cl_git_pass(git_attr_get_many(g_repo, "binfile", 5, names, values));
+
+	cl_assert(values[0] == GIT_ATTR_TRUE);
+	cl_assert(values[1] == NULL);
+	cl_assert(values[2] == GIT_ATTR_FALSE);
+	cl_assert(values[3] == GIT_ATTR_FALSE);
+	cl_assert(values[4] == NULL);
+
+	cl_git_pass(git_attr_get_many(g_repo, "macro_test", 5, names2, values));
+
+	cl_assert(values[0] == NULL);
+	cl_assert(values[1] == GIT_ATTR_TRUE);
+	cl_assert(values[2] == GIT_ATTR_FALSE);
+	cl_assert(values[3] == NULL);
+	cl_assert_strequal("77", values[4]);
+}
diff --git a/tests-clay/clay.h b/tests-clay/clay.h
index 8237991..4a57926 100644
--- a/tests-clay/clay.h
+++ b/tests-clay/clay.h
@@ -65,6 +65,7 @@ extern void test_attr_file__match_variants(void);
 extern void test_attr_file__simple_read(void);
 extern void test_attr_lookup__assign_variants(void);
 extern void test_attr_lookup__check_attr_examples(void);
+extern void test_attr_lookup__from_buffer(void);
 extern void test_attr_lookup__match_variants(void);
 extern void test_attr_lookup__simple(void);
 extern void test_attr_repo__cleanup(void);
@@ -72,6 +73,8 @@ extern void test_attr_repo__foreach(void);
 extern void test_attr_repo__get_many(void);
 extern void test_attr_repo__get_one(void);
 extern void test_attr_repo__initialize(void);
+extern void test_attr_repo__macros(void);
+extern void test_attr_repo__manpage_example(void);
 extern void test_buf_basic__printf(void);
 extern void test_buf_basic__resize(void);
 extern void test_config_add__cleanup(void);
diff --git a/tests-clay/clay_main.c b/tests-clay/clay_main.c
index 49a8676..ce881e4 100644
--- a/tests-clay/clay_main.c
+++ b/tests-clay/clay_main.c
@@ -117,13 +117,16 @@ static const struct clay_func _clay_cb_attr_file[] = {
 static const struct clay_func _clay_cb_attr_lookup[] = {
     {"assign_variants", &test_attr_lookup__assign_variants},
 	{"check_attr_examples", &test_attr_lookup__check_attr_examples},
+	{"from_buffer", &test_attr_lookup__from_buffer},
 	{"match_variants", &test_attr_lookup__match_variants},
 	{"simple", &test_attr_lookup__simple}
 };
 static const struct clay_func _clay_cb_attr_repo[] = {
     {"foreach", &test_attr_repo__foreach},
 	{"get_many", &test_attr_repo__get_many},
-	{"get_one", &test_attr_repo__get_one}
+	{"get_one", &test_attr_repo__get_one},
+	{"macros", &test_attr_repo__macros},
+	{"manpage_example", &test_attr_repo__manpage_example}
 };
 static const struct clay_func _clay_cb_buf_basic[] = {
     {"printf", &test_buf_basic__printf},
@@ -329,13 +332,13 @@ static const struct clay_suite _clay_suites[] = {
         "attr::lookup",
         {NULL, NULL},
         {NULL, NULL},
-        _clay_cb_attr_lookup, 4
+        _clay_cb_attr_lookup, 5
     },
 	{
         "attr::repo",
         {"initialize", &test_attr_repo__initialize},
         {"cleanup", &test_attr_repo__cleanup},
-        _clay_cb_attr_repo, 3
+        _clay_cb_attr_repo, 5
     },
 	{
         "buf::basic",
@@ -556,7 +559,7 @@ static const struct clay_suite _clay_suites[] = {
 };
 
 static size_t _clay_suite_count = 39;
-static size_t _clay_callback_count = 131;
+static size_t _clay_callback_count = 134;
 
 /* Core test functions */
 static void
diff --git a/tests/resources/attr/.gitattributes b/tests/resources/attr/.gitattributes
deleted file mode 100644
index f2c6d71..0000000
--- a/tests/resources/attr/.gitattributes
+++ /dev/null
@@ -1,4 +0,0 @@
-* rootattr
-root_test2 -rootattr
-root_test3 !rootattr
-
diff --git a/tests/resources/attr/.gitted/index b/tests/resources/attr/.gitted/index
index 6841fb2..9c59073 100644
Binary files a/tests/resources/attr/.gitted/index and b/tests/resources/attr/.gitted/index differ
diff --git a/tests/resources/attr/.gitted/info/attributes b/tests/resources/attr/.gitted/info/attributes
index 93efc0c..2e9643a 100644
--- a/tests/resources/attr/.gitted/info/attributes
+++ b/tests/resources/attr/.gitted/info/attributes
@@ -1,2 +1,2 @@
 * repoattr
-
+a*	foo !bar -baz
diff --git a/tests/resources/attr/.gitted/logs/HEAD b/tests/resources/attr/.gitted/logs/HEAD
index cfd1f95..3c40451 100644
--- a/tests/resources/attr/.gitted/logs/HEAD
+++ b/tests/resources/attr/.gitted/logs/HEAD
@@ -1 +1,2 @@
 0000000000000000000000000000000000000000 6bab5c79cd5140d0f800917f550eb2a3dc32b0da Russell Belfer <arrbee@arrbee.com> 1324416995 -0800	commit (initial): initial test data
+6bab5c79cd5140d0f800917f550eb2a3dc32b0da 605812ab7fe421fdd325a935d35cb06a9234a7d7 Russell Belfer <arrbee@arrbee.com> 1325143098 -0800	commit: latest test updates
diff --git a/tests/resources/attr/.gitted/logs/refs/heads/master b/tests/resources/attr/.gitted/logs/refs/heads/master
index cfd1f95..3c40451 100644
--- a/tests/resources/attr/.gitted/logs/refs/heads/master
+++ b/tests/resources/attr/.gitted/logs/refs/heads/master
@@ -1 +1,2 @@
 0000000000000000000000000000000000000000 6bab5c79cd5140d0f800917f550eb2a3dc32b0da Russell Belfer <arrbee@arrbee.com> 1324416995 -0800	commit (initial): initial test data
+6bab5c79cd5140d0f800917f550eb2a3dc32b0da 605812ab7fe421fdd325a935d35cb06a9234a7d7 Russell Belfer <arrbee@arrbee.com> 1325143098 -0800	commit: latest test updates
diff --git a/tests/resources/attr/.gitted/objects/3e/42ffc54a663f9401cc25843d6c0e71a33e4249 b/tests/resources/attr/.gitted/objects/3e/42ffc54a663f9401cc25843d6c0e71a33e4249
new file mode 100644
index 0000000..091d79b
Binary files /dev/null and b/tests/resources/attr/.gitted/objects/3e/42ffc54a663f9401cc25843d6c0e71a33e4249 differ
diff --git a/tests/resources/attr/.gitted/objects/60/5812ab7fe421fdd325a935d35cb06a9234a7d7 b/tests/resources/attr/.gitted/objects/60/5812ab7fe421fdd325a935d35cb06a9234a7d7
new file mode 100644
index 0000000..b0cc51e
--- /dev/null
+++ b/tests/resources/attr/.gitted/objects/60/5812ab7fe421fdd325a935d35cb06a9234a7d7
@@ -0,0 +1,2 @@
+x
�N�
�0�;S��˻�B����U ��J��	�
?�lٖy��gcáU Rba���cG;�l�㠝Dq֠Z�ʫAH�<Ǒ��3N���=J2d3[�0���=�
+�}ۤ�I��™jM"��x�/���[�
���Tw������U�&[�/�k�(�tJL
\ No newline at end of file
diff --git a/tests/resources/attr/.gitted/objects/94/da4faa0a6bfb8ee6ccf7153801a69202b31857 b/tests/resources/attr/.gitted/objects/94/da4faa0a6bfb8ee6ccf7153801a69202b31857
new file mode 100644
index 0000000..a9ddf5d
Binary files /dev/null and b/tests/resources/attr/.gitted/objects/94/da4faa0a6bfb8ee6ccf7153801a69202b31857 differ
diff --git a/tests/resources/attr/.gitted/objects/99/eae476896f4907224978b88e5ecaa6c5bb67a9 b/tests/resources/attr/.gitted/objects/99/eae476896f4907224978b88e5ecaa6c5bb67a9
new file mode 100644
index 0000000..8f5acc7
Binary files /dev/null and b/tests/resources/attr/.gitted/objects/99/eae476896f4907224978b88e5ecaa6c5bb67a9 differ
diff --git a/tests/resources/attr/.gitted/objects/9f/b40b6675dde60b5697afceae91b66d908c02d9 b/tests/resources/attr/.gitted/objects/9f/b40b6675dde60b5697afceae91b66d908c02d9
new file mode 100644
index 0000000..7663ad0
Binary files /dev/null and b/tests/resources/attr/.gitted/objects/9f/b40b6675dde60b5697afceae91b66d908c02d9 differ
diff --git a/tests/resources/attr/.gitted/objects/a5/6bbcecaeac760cc26239384d2d4c614e7e4320 b/tests/resources/attr/.gitted/objects/a5/6bbcecaeac760cc26239384d2d4c614e7e4320
new file mode 100644
index 0000000..d898ae9
Binary files /dev/null and b/tests/resources/attr/.gitted/objects/a5/6bbcecaeac760cc26239384d2d4c614e7e4320 differ
diff --git a/tests/resources/attr/.gitted/objects/d8/00886d9c86731ae5c4a62b0b77c437015e00d2 b/tests/resources/attr/.gitted/objects/d8/00886d9c86731ae5c4a62b0b77c437015e00d2
new file mode 100644
index 0000000..83f3b72
Binary files /dev/null and b/tests/resources/attr/.gitted/objects/d8/00886d9c86731ae5c4a62b0b77c437015e00d2 differ
diff --git a/tests/resources/attr/.gitted/objects/ff/69f8639ce2e6010b3f33a74160aad98b48da2b b/tests/resources/attr/.gitted/objects/ff/69f8639ce2e6010b3f33a74160aad98b48da2b
new file mode 100644
index 0000000..b736c0b
Binary files /dev/null and b/tests/resources/attr/.gitted/objects/ff/69f8639ce2e6010b3f33a74160aad98b48da2b differ
diff --git a/tests/resources/attr/.gitted/refs/heads/master b/tests/resources/attr/.gitted/refs/heads/master
index 279272e..1049fe4 100644
--- a/tests/resources/attr/.gitted/refs/heads/master
+++ b/tests/resources/attr/.gitted/refs/heads/master
@@ -1 +1 @@
-6bab5c79cd5140d0f800917f550eb2a3dc32b0da
+605812ab7fe421fdd325a935d35cb06a9234a7d7
diff --git a/tests/resources/attr/binfile b/tests/resources/attr/binfile
new file mode 100644
index 0000000..d800886
--- /dev/null
+++ b/tests/resources/attr/binfile
@@ -0,0 +1 @@
+123
\ No newline at end of file
diff --git a/tests/resources/attr/gitattributes b/tests/resources/attr/gitattributes
new file mode 100644
index 0000000..94da4fa
--- /dev/null
+++ b/tests/resources/attr/gitattributes
@@ -0,0 +1,7 @@
+* rootattr
+root_test2 -rootattr
+root_test3 !rootattr
+binfile	   		   binary
+abc		foo bar baz
+[attr]mymacro positive -negative !rootattr
+macro* mymacro another=77
diff --git a/tests/resources/attr/macro_test b/tests/resources/attr/macro_test
new file mode 100644
index 0000000..ff69f86
--- /dev/null
+++ b/tests/resources/attr/macro_test
@@ -0,0 +1 @@
+Yo
diff --git a/tests/resources/attr/subdir/.gitattributes b/tests/resources/attr/subdir/.gitattributes
index 210f3a8..99eae47 100644
--- a/tests/resources/attr/subdir/.gitattributes
+++ b/tests/resources/attr/subdir/.gitattributes
@@ -1,3 +1,5 @@
 * subattr=yes -negattr
 subdir/*.txt another=one
-
+ab*			 merge=filfre
+abc			 -foo -bar
+*.c			 frotz
diff --git a/tests/resources/attr/subdir/abc b/tests/resources/attr/subdir/abc
new file mode 100644
index 0000000..3e42ffc
--- /dev/null
+++ b/tests/resources/attr/subdir/abc
@@ -0,0 +1,37 @@
+# Test file from gitattributes(5) example:
+
+If you have these three gitattributes file:
+
+   (in $GIT_DIR/info/attributes)
+
+	a*      foo !bar -baz
+
+	(in .gitattributes)
+	abc     foo bar baz
+
+	(in t/.gitattributes)
+	ab*     merge=filfre
+	abc     -foo -bar
+	*.c     frotz
+
+the attributes given to path t/abc are computed as follows:
+
+1. By examining t/.gitattributes (which is in the same directory as the path
+   in question), git finds that the first line matches. merge attribute is
+   set. It also finds that the second line matches, and attributes foo and
+   bar are unset.
+2. Then it examines .gitattributes (which is in the parent directory), and
+   finds that the first line matches, but t/.gitattributes file already
+   decided how merge, foo and bar attributes should be given to this path,
+   so it leaves foo and bar unset. Attribute baz is set.
+3. Finally it examines $GIT_DIR/info/attributes. This file is used to
+   override the in-tree settings. The first line is a match, and foo is set,
+   bar is reverted to unspecified state, and baz is unset.
+
+As the result, the attributes assignment to t/abc becomes:
+
+	foo     set to true
+	bar     unspecified
+	baz     set to false
+	merge   set to string value "filfre"
+	frotz   unspecified