thodg/libgit2

diff --git a/CONVENTIONS b/CONVENTIONS
index 4b09c08..e3c6728 100644
--- a/CONVENTIONS
+++ b/CONVENTIONS
@@ -12,7 +12,15 @@ All #define macros start with 'GIT_'.
 Type Definitions
 ----------------
 
-All types end in '_t'; for example git_oid_t or git_odb_t.
+Most types should be opaque, e.g.:
+
+----
+	typedef struct git_odb git_odb;
+----
+
+with allocation functions returning an "instance" created within
+the library, and not within the application.  This allows the type
+to grow (or shrink) in size without rebuilding client code.
 
 
 Public Exported Function Definitions
diff --git a/src/git_commit.c b/src/git_commit.c
index ed6e85b..5e98d79 100644
--- a/src/git_commit.c
+++ b/src/git_commit.c
@@ -35,7 +35,7 @@
 
 #include "git_commit.h"
 
-const git_oid_t *git_commit_id(git_commit_t *c)
+const git_oid *git_commit_id(git_commit *c)
 {
 	return &c->id;
 }
diff --git a/src/git_commit.h b/src/git_commit.h
index 05bf671..8c7833b 100644
--- a/src/git_commit.h
+++ b/src/git_commit.h
@@ -50,10 +50,10 @@
 GIT_BEGIN_DECL
 
 /** Parsed representation of a commit object. */
-typedef struct git_commit_t git_commit_t;
+typedef struct git_commit git_commit;
 #ifdef GIT__PRIVATE
-struct git_commit_t {
-	git_oid_t id;
+struct git_commit {
+	git_oid id;
 	time_t commit_time;
 	unsigned parsed:1,
 	         flags:26;
@@ -66,17 +66,17 @@ struct git_commit_t {
  * @param id identity of the commit to locate.  If the object is
  *        an annotated tag it will be peeled back to the commit.
  * @return the commit; NULL if the commit does not exist in the
- *         pool's git_odb_t, or if the commit is present but is
+ *         pool's git_odb, or if the commit is present but is
  *         too malformed to be parsed successfully.
  */
-GIT_EXTERN(git_commit_t*) git_commit_parse(git_revp_t *pool, const git_oid_t *id);
+GIT_EXTERN(git_commit*) git_commit_parse(git_revp *pool, const git_oid *id);
 
 /**
  * Get the id of a commit.
  * @param commit a previously parsed commit.
  * @return object identity for the commit.
  */
-GIT_EXTERN(const git_oid_t*) git_commit_id(git_commit_t *commit);
+GIT_EXTERN(const git_oid*) git_commit_id(git_commit *commit);
 
 /**
  * Get the application data address.
@@ -85,7 +85,7 @@ GIT_EXTERN(const git_oid_t*) git_commit_id(git_commit_t *commit);
  *         Applications should cast to something like
  *         'struct mydata*' in order to access fields.
  */
-GIT_EXTERN(void*) git_commit_appdata(git_commit_t *commit);
+GIT_EXTERN(void*) git_commit_appdata(git_commit *commit);
 
 /** @} */
 GIT_END_DECL
diff --git a/src/git_common.h b/src/git_common.h
index 791826c..c9c7b0e 100644
--- a/src/git_common.h
+++ b/src/git_common.h
@@ -80,7 +80,7 @@ GIT_BEGIN_DECL
 #define GIT_ENOTFOUND (GIT_ERROR - 2)
 
 /** A revision traversal pool. */
-typedef struct git_revp_t git_revp_t;
+typedef struct git_revp git_revp;
 
 /** @} */
 GIT_END_DECL
diff --git a/src/git_odb.c b/src/git_odb.c
index d7ae061..a920633 100644
--- a/src/git_odb.c
+++ b/src/git_odb.c
@@ -35,21 +35,21 @@
 
 #include "git_odb.h"
 
-struct git_odb_t {
+struct git_odb {
 	/** Path to the "objects" directory. */
 	const char *path;
 
 	/** Alternate databases to search. */
-	git_odb_t **alternates;
+	git_odb **alternates;
 
 	/** Number of alternates available. */
 	unsigned n_alternates;
 };
 
 int git_odb_read(
-	git_sobj_t *out,
-	git_odb_t *db,
-	const git_oid_t *id)
+	git_sobj *out,
+	git_odb *db,
+	const git_oid *id)
 {
 	if (!git_odb__read_packed(out, db, id))
 		return GIT_SUCCESS;
diff --git a/src/git_odb.h b/src/git_odb.h
index 8e0a161..5069c19 100644
--- a/src/git_odb.h
+++ b/src/git_odb.h
@@ -50,7 +50,7 @@
 GIT_BEGIN_DECL
 
 /** An open object database handle. */
-typedef struct git_odb_t git_odb_t;
+typedef struct git_odb git_odb;
 
 /**
  * Open an object database for read/write access.
@@ -60,14 +60,14 @@ typedef struct git_odb_t git_odb_t;
  * @return GIT_SUCCESS if the database opened; otherwise an error
  *         code describing why the open was not possible.
  */
-GIT_EXTERN(int) git_odb_open(git_odb_t **out, const char *objects_dir);
+GIT_EXTERN(int) git_odb_open(git_odb **out, const char *objects_dir);
 
 /**
  * Close an open object database.
  * @param db database pointer to close.  If NULL no action is taken.
  *           The pointer is set to NULL when the close is completed.
  */
-GIT_EXTERN(void) git_odb_close(git_odb_t **db);
+GIT_EXTERN(void) git_odb_close(git_odb **db);
 
 /** Basic type (loose or packed) of any Git object. */
 typedef enum {
@@ -80,14 +80,14 @@ typedef enum {
 	GIT_OBJ__EXT2 = 5,      /**< Reserved for future use. */
 	GIT_OBJ_OFS_DELTA = 6,  /**< A delta, base is given by an offset. */
 	GIT_OBJ_REF_DELTA = 7,  /**< A delta, base is given by object id. */
-} git_otype_t;
+} git_otype;
 
 /** A small object read from the database. */
 typedef struct {
 	void *data;            /**< Raw, decompressed object data. */
 	size_t len  ;          /**< Total number of bytes in data. */
-	git_otype_t type;      /**< Type of this object. */
-} git_sobj_t;
+	git_otype type;      /**< Type of this object. */
+} git_sobj;
 
 /**
  * Read a small object from the database.
@@ -101,7 +101,7 @@ typedef struct {
  * - GIT_SUCCESS if the object was read;
  * - GIT_ENOTFOUND if the object is not in the database.
  */
-GIT_EXTERN(int) git_odb_read(git_sobj_t *out, git_odb_t *db, const git_oid_t *id);
+GIT_EXTERN(int) git_odb_read(git_sobj *out, git_odb *db, const git_oid *id);
 
 /**
  * Read a small object from the database using only pack files.
@@ -115,7 +115,7 @@ GIT_EXTERN(int) git_odb_read(git_sobj_t *out, git_odb_t *db, const git_oid_t *id
  * - GIT_SUCCESS if the object was read.
  * - GIT_ENOTFOUND if the object is not in the database.
  */
-GIT_EXTERN(int) git_odb__read_packed(git_sobj_t *out, git_odb_t *db, const git_oid_t *id);
+GIT_EXTERN(int) git_odb__read_packed(git_sobj *out, git_odb *db, const git_oid *id);
 
 /**
  * Read a small object from the database using only loose object files.
@@ -129,7 +129,7 @@ GIT_EXTERN(int) git_odb__read_packed(git_sobj_t *out, git_odb_t *db, const git_o
  * - GIT_SUCCESS if the object was read.
  * - GIT_ENOTFOUND if the object is not in the database.
  */
-GIT_EXTERN(int) git_odb__read_loose(git_sobj_t *out, git_odb_t *db, const git_oid_t *id);
+GIT_EXTERN(int) git_odb__read_loose(git_sobj *out, git_odb *db, const git_oid *id);
 
 /**
  * Release all memory used by the sobj structure.
@@ -140,7 +140,7 @@ GIT_EXTERN(int) git_odb__read_loose(git_sobj_t *out, git_odb_t *db, const git_oi
  *
  * @param obj object descriptor to free.
  */
-GIT_EXTERN(void) git_sobj_close(git_sobj_t *obj);
+GIT_EXTERN(void) git_sobj_close(git_sobj *obj);
 
 /** @} */
 GIT_END_DECL
diff --git a/src/git_oid.c b/src/git_oid.c
index b20f1d8..20d191c 100644
--- a/src/git_oid.c
+++ b/src/git_oid.c
@@ -55,7 +55,7 @@ static signed char from_hex[] = {
 -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* f0 */
 };
 
-int git_oid_mkstr(git_oid_t *out, const char *str)
+int git_oid_mkstr(git_oid *out, const char *str)
 {
 	int p;
 	for (p = 0; p < sizeof(out->id); p++, str += 2) {
@@ -67,7 +67,7 @@ int git_oid_mkstr(git_oid_t *out, const char *str)
 	return GIT_SUCCESS;
 }
 
-void git_oid_mkraw(git_oid_t *out, const unsigned char *raw)
+void git_oid_mkraw(git_oid *out, const unsigned char *raw)
 {
 	memcpy(out->id, raw, sizeof(out->id));
 }
diff --git a/src/git_oid.h b/src/git_oid.h
index 9a9e5ab..a24f1bb 100644
--- a/src/git_oid.h
+++ b/src/git_oid.h
@@ -52,7 +52,7 @@ typedef struct
 {
 	/** raw binary formatted id */
 	unsigned char id[20];
-} git_oid_t;
+} git_oid;
 
 /**
  * Parse a hex formatted object id into a git_oid.
@@ -62,14 +62,14 @@ typedef struct
  *        needed for an oid encoded in hex (40 bytes).
  * @return GIT_SUCCESS if valid; GIT_ENOTOID on failure.
  */
-GIT_EXTERN(int) git_oid_mkstr(git_oid_t *out, const char *str);
+GIT_EXTERN(int) git_oid_mkstr(git_oid *out, const char *str);
 
 /**
  * Copy an already raw oid into a git_oid structure.
  * @param out oid structure the result is written into.
  * @param raw the raw input bytes to be copied.
  */
-GIT_EXTERN(void) git_oid_mkraw(git_oid_t *out, const unsigned char *raw);
+GIT_EXTERN(void) git_oid_mkraw(git_oid *out, const unsigned char *raw);
 
 /** @} */
 GIT_END_DECL
diff --git a/src/git_revwalk.c b/src/git_revwalk.c
index 5e9e1f2..1088490 100644
--- a/src/git_revwalk.c
+++ b/src/git_revwalk.c
@@ -37,22 +37,22 @@
 #include <stdlib.h>
 #include <string.h>
 
-struct git_revp_attr_t {
+struct git_revp_attr {
 	size_t app_size;
-	int (*app_init)(git_commit_t *, void *);
+	int (*app_init)(git_commit *, void *);
 };
 
-struct git_revp_t {
-	git_odb_t *db;
-	git_revp_attr_t attr;
+struct git_revp {
+	git_odb *db;
+	git_revp_attr attr;
 };
 
 
-git_revp_t *git_revp_alloc(
-	git_odb_t *db,
-	const git_revp_attr_t *attr)
+git_revp *git_revp_alloc(
+	git_odb *db,
+	const git_revp_attr *attr)
 {
-	git_revp_t *walk = malloc(sizeof(*walk));
+	git_revp *walk = malloc(sizeof(*walk));
 	if (!walk)
 		return NULL;
 
@@ -65,7 +65,7 @@ git_revp_t *git_revp_alloc(
 	return walk;
 }
 
-void git_revp_free(git_revp_t *walk)
+void git_revp_free(git_revp *walk)
 {
 	free(walk);
 }
diff --git a/src/git_revwalk.h b/src/git_revwalk.h
index e7ed799..5ad6372 100644
--- a/src/git_revwalk.h
+++ b/src/git_revwalk.h
@@ -50,7 +50,7 @@
 GIT_BEGIN_DECL
 
 /** Configuration of a revision pool. */
-typedef struct git_revp_attr_t git_revp_attr_t;
+typedef struct git_revp_attr git_revp_attr;
 
 /**
  * Allocate an empty pool configuration.
@@ -61,13 +61,13 @@ typedef struct git_revp_attr_t git_revp_attr_t;
  * @return a new configuration block.
  *         NULL if there is insufficient memory.
  */
-GIT_EXTERN(git_revp_attr_t*) git_revp_attr_alloc(void);
+GIT_EXTERN(git_revp_attr*) git_revp_attr_alloc(void);
 
 /**
  * Setup the application's per-commit data allocation.
  *
  * If size is non-zero the requested number of bytes is allocated
- * alongside every git_commit_t used by the revision pool, allowing
+ * alongside every git_commit used by the revision pool, allowing
  * constant-time access to per-commit application data.
  *
  * If init is not NULL the function is invoked with the commit and
@@ -81,22 +81,22 @@ GIT_EXTERN(git_revp_attr_t*) git_revp_attr_alloc(void);
  *
  * @param attr the pool configuration to adjust.
  * @param size number of bytes required by the application on
- *        each rev_commit_t instance within the pool.
+ *        each rev_commit instance within the pool.
  * @param init optional callback function to initialize the
  *        application data space.  If NULL the application
  *        space will be zeroed.  If supplied the application
  *        space may contain random garbage.
  */
 GIT_EXTERN(void) git_revp_attr_appdata(
-	git_revp_attr_t *attr,
+	git_revp_attr *attr,
 	size_t size,
-	int (*init)(git_commit_t *, void *));
+	int (*init)(git_commit *, void *));
 
 /**
  * Free a pool configuration.
  * @param attr the configuration to free.  No-op if NULL.
  */
-GIT_EXTERN(void) git_revp_attr_free(git_revp_attr_t *attr);
+GIT_EXTERN(void) git_revp_attr_free(git_revp_attr *attr);
 
 /**
  * Allocate a new revision traversal pool.
@@ -111,42 +111,42 @@ GIT_EXTERN(void) git_revp_attr_free(git_revp_attr_t *attr);
  *        NULL to use a default configuration.
  * @return the new traversal handle; NULL if memory is exhausted.
  */
-GIT_EXTERN(git_revp_t*) git_revp_alloc(
-	git_odb_t *db,
-	const git_revp_attr_t *attr);
+GIT_EXTERN(git_revp*) git_revp_alloc(
+	git_odb *db,
+	const git_revp_attr *attr);
 
 /**
  * Reset the traversal machinary for reuse.
  * @param pool traversal handle to reset.
  */
-GIT_EXTERN(void) git_revp_reset(git_revp_t *pool);
+GIT_EXTERN(void) git_revp_reset(git_revp *pool);
 
 /**
  * Mark an object to start traversal from.
  * @param pool the pool being used for the traversal.
  * @param commit the commit the commit to start from.
  */
-GIT_EXTERN(void) git_revp_pushc(git_revp_t *pool, git_commit_t *commit);
+GIT_EXTERN(void) git_revp_pushc(git_revp *pool, git_commit *commit);
 
 /**
  * Mark a commit (and its ancestors) uninteresting for the output.
  * @param pool the pool being used for the traversal.
  * @param commit the commit the commit to start from.
  */
-GIT_EXTERN(void) git_revp_hidec(git_revp_t *pool, git_commit_t *commit);
+GIT_EXTERN(void) git_revp_hidec(git_revp *pool, git_commit *commit);
 
 /**
  * Get the next commit from the revision traversal.
  * @param pool the pool to pop the commit from.
  * @return next commit; NULL if there is no more output.
  */
-GIT_EXTERN(git_commit_t*) git_revp_nextc(git_revp_t *pool);
+GIT_EXTERN(git_commit*) git_revp_nextc(git_revp *pool);
 
 /**
  * Free a revwalk previously allocated.
  * @param pool traversal handle to close.  If NULL nothing occurs.
  */
-GIT_EXTERN(void) git_revp_free(git_revp_t *pool);
+GIT_EXTERN(void) git_revp_free(git_revp *pool);
 
 /** @} */
 GIT_END_DECL