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womax
2024-06-03 19:28:08 +02:00
parent a5bbd3f86d
commit 0fb0039b7d
7 changed files with 535 additions and 84 deletions
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207
src/fs.c
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@@ -194,6 +194,20 @@ defer:
return result;
}
int remove_object(char *checksum)
{
if(!local_repo_exist())
{
return REPO_NOT_INITIALIZED;
}
int result = FS_OK;
char path[strlen(OBJECTS_DIR) + strlen(checksum) + 2];
sprintf(path, "%s/%s", OBJECTS_DIR, checksum);
remove(path);
}
int create_dir(char *dir)
{
struct stat buffer = {0};
@@ -361,7 +375,7 @@ int get_head_commit_checksum(char* checksum)
return REPO_NOT_INITIALIZED;
}
if(head_size == 0) return 0;
if(head_size == 0) return NO_CURRENT_HEAD;
FILE *head_file = NULL;
head_file = fopen(HEAD_FILE, "r");
@@ -383,7 +397,8 @@ int get_head_commit_checksum(char* checksum)
int get_last_commit(struct object *commit)
{
char commit_checksum[DIGEST_LENGTH * 2 + 1];
get_head_commit_checksum(commit_checksum);
if (get_head_commit_checksum(commit_checksum) == NO_CURRENT_HEAD)
return FS_OK;
int res = read_object(commit_checksum, commit);
if (res != 0) return FS_ERROR;
@@ -465,24 +480,15 @@ int new_branch(char* branch_name)
return FS_OK;
}
int revert_to(char* commit_checksum)
int reset_to(char* commit_checksum)
{
struct object obj = {0};
read_object(commit_checksum, &obj);
if(obj.object_type != COMMIT)
return WRONG_OBJECT_TYPE;
struct commit commit = {0};
commit_from_object(&commit, &obj);
diff_commit_with_working_tree(&commit, 0);
int res = diff_commit_with_working_tree(commit_checksum, 0);
if(res != FS_OK)
return res;
FILE *p = popen("patch -p0 -R < "LOCAL_REPO"/last.diff > /dev/null", "w");
pclose(p);
free_commit(&commit);
free_object(&obj);
return FS_OK;
}
@@ -501,15 +507,178 @@ int checkout_branch(char *branch)
fread(commit_checksum, DIGEST_LENGTH * 2 + 1, 1, branch_head);
fclose(branch_head);
revert_to(commit_checksum);
reset_to(commit_checksum);
FILE *head_file = fopen(HEAD_FILE, "w");
fwrite(branch_path, DIGEST_LENGTH * 2 + 1, 1, head_file);
fclose(head_file);
}
void print_diff()
int is_file_ignored(char *filename)
{
FILE *p = popen("cat "LOCAL_REPO"/last.diff | less -R", "w");
pclose(p);
struct stat buffer = {0};
if (stat(IGNORE_FILE, &buffer) != 0)
{
return 0;
}
char content[buffer.st_size + 1];
memset(content, 0, buffer.st_size + 1);
FILE *ignore_file = fopen(IGNORE_FILE, "r");
fread(content, buffer.st_size, 1, ignore_file);
fclose(ignore_file);
char *current_line = strtok(content, "\n");
while(current_line != NULL)
{
if(strncmp(current_line, filename, strlen(current_line)) == 0)
{
return 1;
}
char alt[strlen(current_line) + 3];
sprintf(alt, "./%s", current_line);
if(strncmp(alt, filename, strlen(alt)) == 0)
return 1;
current_line = strtok(NULL, "\n");
}
return 0;
}
int add_file_to_index(struct tree *index, char *filename)
{
if (is_file_ignored(filename)) {
return 0;
}
struct stat st = {0};
if (stat(filename, &st) != 0)
{
return FILE_NOT_FOUND;
}
if (!S_ISREG(st.st_mode))
{
DIR *dp;
struct dirent *ep;
dp = opendir(filename);
if (dp != NULL)
{
while ((ep = readdir(dp)) != NULL)
{
if (strcmp(ep->d_name, "..") != 0 && strcmp(ep->d_name, ".") != 0)
{
char path[strlen(ep->d_name) + strlen(filename) + 2];
if (strcmp(filename, "./") == 0)
sprintf(path, "%s", ep->d_name);
else if (strcmp(filename, ".") == 0)
sprintf(path, "%s", ep->d_name);
else if(filename[strlen(filename) - 1] == '/')
sprintf(path, "%s%s", filename, ep->d_name);
else
sprintf(path, "%s/%s", filename, ep->d_name);
add_file_to_index(index, path);
}
}
closedir(dp);
return 0;
}
} else {
if (add_to_index(index, filename) == FILE_NOT_FOUND)
return FILE_NOT_FOUND;
}
}
int remove_file_from_index(struct tree *index, char *filename)
{
if (is_file_ignored(filename))
return 0;
struct stat st = {0};
if (stat(filename, &st) != 0)
return FILE_NOT_FOUND;
if (!S_ISREG(st.st_mode))
{
DIR *dp;
struct dirent *ep;
dp = opendir(filename);
if (dp != NULL)
{
while ((ep = readdir(dp)) != NULL)
{
if (strcmp(ep->d_name, "..") != 0 && strcmp(ep->d_name, ".") != 0)
{
char path[strlen(ep->d_name) + strlen(filename) + 2];
if (strcmp(filename, "./") == 0)
sprintf(path, "%s", ep->d_name);
else if(filename[strlen(filename) - 1] == '/')
sprintf(path, "%s%s", filename, ep->d_name);
else
sprintf(path, "%s/%s", filename, ep->d_name);
remove_file_from_index(index, path);
}
}
closedir(dp);
return 0;
}
} else {
remove_from_index(index, filename, 1);
}
}
int dump_log()
{
struct object current_obj = {0};
get_last_commit(&current_obj);
struct commit current = {0};
commit_from_object(&current, &current_obj);
FILE *log_file = fopen(LOG_FILE, "w");
char checksum[DIGEST_LENGTH * 2 + 1];
hash_object(&current_obj, checksum);
fprintf(log_file, "commit %s\n", checksum);
fprintf(log_file, "Author: %s\n", current.author);
fprintf(log_file, "Tree: %s\n", current.tree);
fprintf(log_file, "\n");
while (strcmp(current.parent, " ") != 0)
{
free_object(&current_obj);
read_object(current.parent, &current_obj);
free_commit(&current);
commit_from_object(&current, &current_obj);
checksum[DIGEST_LENGTH * 2 + 1];
hash_object(&current_obj, checksum);
fprintf(log_file, "commit %s\n", checksum);
fprintf(log_file, "Author: %s\n", current.author);
fprintf(log_file, "Tree: %s\n", current.tree);
fprintf(log_file, "\n");
}
fclose(log_file);
return 0;
}
int dump_branches()
{
if(!heads_dir_exist())
{
return REPO_NOT_INITIALIZED;
}
DIR *heads_dir = opendir(HEADS_DIR);
struct dirent *ep;
FILE *dump = fopen(TMP"/branches", "w");
if (heads_dir != NULL)
{
while ((ep = readdir(heads_dir)) != NULL)
{
if (strcmp(ep->d_name, "..") != 0 && strcmp(ep->d_name, ".") != 0)
fprintf(dump, "%s\n", ep->d_name);
}
fclose(dump);
closedir(heads_dir);
return 0;
} else
return FS_ERROR;
}