int diff_sl(const char *lower_path, const char* upper_path, const size_t lower_root_len, const struct stat *lower_status, const struct stat *upper_status, bool verbose, FILE* script_stream, int *fts_instr,void *extra) {
bool identical;
if (lower_status != NULL) {
switch (file_type(lower_status)) {
case S_IFDIR:
if (list_deleted_files(lower_path, lower_root_len, verbose) < 0) { return -1; }
break;
case S_IFREG:
printf("Removed: %s\n", &lower_path[lower_root_len]);
break;
case S_IFLNK:
if (symbolic_link_identical(lower_path, upper_path, &identical) < 0) {
return -1;
}
if (!(identical && permission_identical(lower_status, upper_status))) {
printf("Modified: %s\n", &lower_path[lower_root_len]);
}
return 0;
default:
fprintf(stderr, "File %s is a special file (device or pipe). We cannot handle that.\n", lower_path);
return -1;
}
}
printf("Added: %s\n", &lower_path[lower_root_len]);
return 0;
}
int vacuum_sl(const char *lower_path, const char* upper_path, const size_t lower_root_len, const struct stat *lower_status, const struct stat *upper_status, bool verbose, FILE* script_stream, int *fts_instr,void *extra) {
if (lower_status == NULL) { return 0; } // lower does not exist
if (file_type(lower_status) != S_IFLNK) { return 0; }
if (!permission_identical(lower_status, upper_status)) { return 0; }
bool identical;
if (symbolic_link_identical(lower_path, upper_path, &identical) < 0) {
return -1;
}
if (!identical) { return 0; }
return command(script_stream, "rm %", upper_path);
}
int vacuum_f(const char *lower_path, const char* upper_path, const size_t lower_root_len, const struct stat *lower_status, const struct stat *upper_status, bool verbose, FILE* script_stream, int *fts_instr) {
if (lower_status == NULL) { return 0; } // lower does not exist
if (file_type(lower_status) != S_IFREG) { return 0; }
if (!permission_identical(lower_status, upper_status)) { return 0; }
bool identical;
if (regular_file_identical(lower_path, lower_status, upper_path, upper_status, &identical) < 0) {
return -1;
}
if (!identical) { return 0; }
return command(script_stream, "rm %", upper_path);
}
int vacuum_dp(const char *lower_path, const char* upper_path, const size_t lower_root_len, const struct stat *lower_status, const struct stat *upper_status, bool verbose, FILE* script_stream, int *fts_instr,void *extra) {
if (lower_status == NULL) { return 0; } // lower does not exist
if (file_type(lower_status) != S_IFDIR) { return 0; }
if (!permission_identical(lower_status, upper_status)) { return 0; }
bool opaque;
if (is_opaquedir(upper_path, &opaque) < 0) {
return -1;
}
if (opaque) { return 0; }
// this directory might be empty if all children are deleted in previous commands. but we simply don't test whether it's that case
return command(script_stream, "rmdir --ignore-fail-on-non-empty %", upper_path);
}
int merge_d(const char *lower_path, const char* upper_path, const size_t lower_root_len, const struct stat *lower_status, const struct stat *upper_status, bool verbose, FILE* script_stream, int *fts_instr,void *extra) {
if (lower_status != NULL) {
if (file_type(lower_status) == S_IFDIR) {
bool opaque = false;
if (is_opaquedir(upper_path, &opaque) < 0) { return -1; }
if (opaque) {
if (command(script_stream, "rm -r %", lower_path) < 0) { return -1; };
} else {
if (!permission_identical(lower_status, upper_status)) {
command(script_stream, "chmod --reference % %", upper_path, lower_path);
}
return 0; // children must be recursed, and directory itself does not need to be printed
}
} else {
command(script_stream, "rm %", lower_path);
}
}
*fts_instr = FTS_SKIP;
return command(script_stream, "mv -T % %", upper_path, lower_path);
}
int diff_d(const char *lower_path, const char* upper_path, const size_t lower_root_len, const struct stat *lower_status, const struct stat *upper_status, bool verbose, FILE* script_stream, int *fts_instr,void *extra) {
if (lower_status != NULL) {
if (file_type(lower_status) == S_IFDIR) {
bool opaque = false;
if (is_opaquedir(upper_path, &opaque) < 0) { return -1; }
if (opaque) {
if (list_deleted_files(lower_path, lower_root_len, verbose) < 0) { return -1; }
} else {
if (!permission_identical(lower_status, upper_status)) {
printf("Modified: %s/\n", &lower_path[lower_root_len]);
}
return 0; // children must be recursed, and directory itself does not need to be printed
}
} else { // other types of files
printf("Removed: %s\n", &lower_path[lower_root_len]);
}
}
if (!verbose) {
*fts_instr = FTS_SKIP;
}
printf("Added: %s/\n", &lower_path[lower_root_len]);
return 0;
}
