summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
Diffstat
-rw-r--r--blob.c14
-rw-r--r--blob.h2
-rw-r--r--commit.c40
-rw-r--r--commit.h2
-rw-r--r--object.c30
-rw-r--r--tag.c50
-rw-r--r--tag.h1
-rw-r--r--tree.c44
-rw-r--r--tree.h2
9 files changed, 115 insertions, 70 deletions
diff --git a/blob.c b/blob.c
index 625db43..280f524 100644
--- a/blob.c
+++ b/blob.c
@@ -22,21 +22,29 @@ struct blob *lookup_blob(unsigned char *sha1)
return (struct blob *) obj;
}
+int parse_blob_buffer(struct blob *item, void *buffer, unsigned long size)
+{
+ item->object.parsed = 1;
+ return 0;
+}
+
int parse_blob(struct blob *item)
{
char type[20];
void *buffer;
unsigned long size;
+ int ret;
+
if (item->object.parsed)
return 0;
- item->object.parsed = 1;
buffer = read_sha1_file(item->object.sha1, type, &size);
if (!buffer)
return error("Could not read %s",
sha1_to_hex(item->object.sha1));
- free(buffer);
if (strcmp(type, blob_type))
return error("Object %s not a blob",
sha1_to_hex(item->object.sha1));
- return 0;
+ ret = parse_blob_buffer(item, buffer, size);
+ free(buffer);
+ return ret;
}
diff --git a/blob.h b/blob.h
index 4afad0f..8004c83 100644
--- a/blob.h
+++ b/blob.h
@@ -11,6 +11,8 @@ struct blob {
struct blob *lookup_blob(unsigned char *sha1);
+int parse_blob_buffer(struct blob *item, void *buffer, unsigned long size);
+
int parse_blob(struct blob *item);
#endif /* BLOB_H */
diff --git a/commit.c b/commit.c
index b45118a..706c7cb 100644
--- a/commit.c
+++ b/commit.c
@@ -41,24 +41,14 @@ static unsigned long parse_commit_date(const char *buf)
return date;
}
-int parse_commit(struct commit *item)
+int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size)
{
- char type[20];
- void * buffer, *bufptr;
- unsigned long size;
+ void *bufptr = buffer;
unsigned char parent[20];
+
if (item->object.parsed)
return 0;
item->object.parsed = 1;
- buffer = bufptr = read_sha1_file(item->object.sha1, type, &size);
- if (!buffer)
- return error("Could not read %s",
- sha1_to_hex(item->object.sha1));
- if (strcmp(type, commit_type)) {
- free(buffer);
- return error("Object %s not a commit",
- sha1_to_hex(item->object.sha1));
- }
get_sha1_hex(bufptr + 5, parent);
item->tree = lookup_tree(parent);
if (item->tree)
@@ -74,10 +64,32 @@ int parse_commit(struct commit *item)
bufptr += 48;
}
item->date = parse_commit_date(bufptr);
- free(buffer);
return 0;
}
+int parse_commit(struct commit *item)
+{
+ char type[20];
+ void *buffer;
+ unsigned long size;
+ int ret;
+
+ if (item->object.parsed)
+ return 0;
+ buffer = read_sha1_file(item->object.sha1, type, &size);
+ if (!buffer)
+ return error("Could not read %s",
+ sha1_to_hex(item->object.sha1));
+ if (strcmp(type, commit_type)) {
+ free(buffer);
+ return error("Object %s not a commit",
+ sha1_to_hex(item->object.sha1));
+ }
+ ret = parse_commit_buffer(item, buffer, size);
+ free(buffer);
+ return ret;
+}
+
void commit_list_insert(struct commit *item, struct commit_list **list_p)
{
struct commit_list *new_list = xmalloc(sizeof(struct commit_list));
diff --git a/commit.h b/commit.h
index d61d084..ce0b436 100644
--- a/commit.h
+++ b/commit.h
@@ -20,6 +20,8 @@ extern const char *commit_type;
struct commit *lookup_commit(unsigned char *sha1);
+int parse_commit_buffer(struct commit *item, void *buffer, unsigned long size);
+
int parse_commit(struct commit *item);
void commit_list_insert(struct commit *item, struct commit_list **list_p);
diff --git a/object.c b/object.c
index c1f2291..b5a62e7 100644
--- a/object.c
+++ b/object.c
@@ -104,6 +104,7 @@ struct object *parse_object(unsigned char *sha1)
unsigned long mapsize;
void *map = map_sha1_file(sha1, &mapsize);
if (map) {
+ struct object *obj;
char type[100];
unsigned long size;
void *buffer = unpack_sha1_file(map, mapsize, type, &size);
@@ -112,26 +113,27 @@ struct object *parse_object(unsigned char *sha1)
return NULL;
if (check_sha1_signature(sha1, buffer, size, type) < 0)
printf("sha1 mismatch %s\n", sha1_to_hex(sha1));
- free(buffer);
if (!strcmp(type, "blob")) {
- struct blob *ret = lookup_blob(sha1);
- parse_blob(ret);
- return &ret->object;
+ struct blob *blob = lookup_blob(sha1);
+ parse_blob_buffer(blob, buffer, size);
+ obj = &blob->object;
} else if (!strcmp(type, "tree")) {
- struct tree *ret = lookup_tree(sha1);
- parse_tree(ret);
- return &ret->object;
+ struct tree *tree = lookup_tree(sha1);
+ parse_tree_buffer(tree, buffer, size);
+ obj = &tree->object;
} else if (!strcmp(type, "commit")) {
- struct commit *ret = lookup_commit(sha1);
- parse_commit(ret);
- return &ret->object;
+ struct commit *commit = lookup_commit(sha1);
+ parse_commit_buffer(commit, buffer, size);
+ obj = &commit->object;
} else if (!strcmp(type, "tag")) {
- struct tag *ret = lookup_tag(sha1);
- parse_tag(ret);
- return &ret->object;
+ struct tag *tag = lookup_tag(sha1);
+ parse_tag_buffer(tag, buffer, size);
+ obj = &tag->object;
} else {
- return NULL;
+ obj = NULL;
}
+ free(buffer);
+ return obj;
}
return NULL;
}
diff --git a/tag.c b/tag.c
index 3a71dd4..22deb24 100644
--- a/tag.c
+++ b/tag.c
@@ -21,11 +21,8 @@ struct tag *lookup_tag(unsigned char *sha1)
return (struct tag *) obj;
}
-int parse_tag(struct tag *item)
+int parse_tag_buffer(struct tag *item, void *data, unsigned long size)
{
- char type[20];
- void *data, *bufptr;
- unsigned long size;
int typelen, taglen;
unsigned char object[20];
const char *type_line, *tag_line, *sig_line;
@@ -33,20 +30,11 @@ int parse_tag(struct tag *item)
if (item->object.parsed)
return 0;
item->object.parsed = 1;
- data = bufptr = read_sha1_file(item->object.sha1, type, &size);
- if (!data)
- return error("Could not read %s",
- sha1_to_hex(item->object.sha1));
- if (strcmp(type, tag_type)) {
- free(data);
- return error("Object %s not a tag",
- sha1_to_hex(item->object.sha1));
- }
if (size < 64)
- goto err;
+ return -1;
if (memcmp("object ", data, 7) || get_sha1_hex(data + 7, object))
- goto err;
+ return -1;
item->tagged = parse_object(object);
if (item->tagged)
@@ -54,29 +42,47 @@ int parse_tag(struct tag *item)
type_line = data + 48;
if (memcmp("\ntype ", type_line-1, 6))
- goto err;
+ return -1;
tag_line = strchr(type_line, '\n');
if (!tag_line || memcmp("tag ", ++tag_line, 4))
- goto err;
+ return -1;
sig_line = strchr(tag_line, '\n');
if (!sig_line)
- goto err;
+ return -1;
sig_line++;
typelen = tag_line - type_line - strlen("type \n");
if (typelen >= 20)
- goto err;
+ return -1;
taglen = sig_line - tag_line - strlen("tag \n");
item->tag = xmalloc(taglen + 1);
memcpy(item->tag, tag_line + 4, taglen);
item->tag[taglen] = '\0';
- free(data);
return 0;
+}
-err:
+int parse_tag(struct tag *item)
+{
+ char type[20];
+ void *data;
+ unsigned long size;
+ int ret;
+
+ if (item->object.parsed)
+ return 0;
+ data = read_sha1_file(item->object.sha1, type, &size);
+ if (!data)
+ return error("Could not read %s",
+ sha1_to_hex(item->object.sha1));
+ if (strcmp(type, tag_type)) {
+ free(data);
+ return error("Object %s not a tag",
+ sha1_to_hex(item->object.sha1));
+ }
+ ret = parse_tag_buffer(item, data, size);
free(data);
- return -1;
+ return ret;
}
diff --git a/tag.h b/tag.h
index eddfed6..4182687 100644
--- a/tag.h
+++ b/tag.h
@@ -13,6 +13,7 @@ struct tag {
};
extern struct tag *lookup_tag(unsigned char *sha1);
+extern int parse_tag_buffer(struct tag *item, void *data, unsigned long size);
extern int parse_tag(struct tag *item);
#endif /* TAG_H */
diff --git a/tree.c b/tree.c
index 468f99e..d9777bf 100644
--- a/tree.c
+++ b/tree.c
@@ -88,24 +88,14 @@ struct tree *lookup_tree(unsigned char *sha1)
return (struct tree *) obj;
}
-int parse_tree(struct tree *item)
+int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size)
{
- char type[20];
- void *buffer, *bufptr;
- unsigned long size;
+ void *bufptr = buffer;
struct tree_entry_list **list_p;
+
if (item->object.parsed)
return 0;
item->object.parsed = 1;
- buffer = bufptr = read_sha1_file(item->object.sha1, type, &size);
- if (!buffer)
- return error("Could not read %s",
- sha1_to_hex(item->object.sha1));
- if (strcmp(type, tree_type)) {
- free(buffer);
- return error("Object %s not a tree",
- sha1_to_hex(item->object.sha1));
- }
list_p = &item->entries;
while (size) {
struct object *obj;
@@ -115,10 +105,8 @@ int parse_tree(struct tree *item)
char *path = strchr(bufptr, ' ');
unsigned int mode;
if (size < len + 20 || !path ||
- sscanf(bufptr, "%o", &mode) != 1) {
- free(buffer);
+ sscanf(bufptr, "%o", &mode) != 1)
return -1;
- }
entry = xmalloc(sizeof(struct tree_entry_list));
entry->name = strdup(path + 1);
@@ -144,6 +132,28 @@ int parse_tree(struct tree *item)
*list_p = entry;
list_p = &entry->next;
}
- free(buffer);
return 0;
}
+
+int parse_tree(struct tree *item)
+{
+ char type[20];
+ void *buffer;
+ unsigned long size;
+ int ret;
+
+ if (item->object.parsed)
+ return 0;
+ buffer = read_sha1_file(item->object.sha1, type, &size);
+ if (!buffer)
+ return error("Could not read %s",
+ sha1_to_hex(item->object.sha1));
+ if (strcmp(type, tree_type)) {
+ free(buffer);
+ return error("Object %s not a tree",
+ sha1_to_hex(item->object.sha1));
+ }
+ ret = parse_tree_buffer(item, buffer, size);
+ free(buffer);
+ return ret;
+}
diff --git a/tree.h b/tree.h
index e1c94c0..1383beb 100644
--- a/tree.h
+++ b/tree.h
@@ -25,6 +25,8 @@ struct tree {
struct tree *lookup_tree(unsigned char *sha1);
+int parse_tree_buffer(struct tree *item, void *buffer, unsigned long size);
+
int parse_tree(struct tree *tree);
#endif /* TREE_H */
generated by cgit v0.10.2-6-g49f6 at 2024-04-27 03:40:33 (GMT)