static void handle_node(void)
{
if (node_ctx.propLength != LENGTH_UNKNOWN && node_ctx.propLength)
read_props();
if (node_ctx.srcRev)
node_ctx.srcMode = repo_copy(node_ctx.srcRev, node_ctx.src, node_ctx.dst);
if (node_ctx.textLength != LENGTH_UNKNOWN &&
node_ctx.type != REPO_MODE_DIR)
node_ctx.mark = next_blob_mark();
if (node_ctx.action == NODEACT_DELETE) {
repo_delete(node_ctx.dst);
} else if (node_ctx.action == NODEACT_CHANGE ||
node_ctx.action == NODEACT_REPLACE) {
if (node_ctx.action == NODEACT_REPLACE &&
node_ctx.type == REPO_MODE_DIR)
repo_replace(node_ctx.dst, node_ctx.mark);
else if (node_ctx.propLength != LENGTH_UNKNOWN)
repo_modify(node_ctx.dst, node_ctx.type, node_ctx.mark);
else if (node_ctx.textLength != LENGTH_UNKNOWN)
node_ctx.srcMode = repo_replace(node_ctx.dst, node_ctx.mark);
} else if (node_ctx.action == NODEACT_ADD) {
if (node_ctx.srcRev && node_ctx.propLength != LENGTH_UNKNOWN)
repo_modify(node_ctx.dst, node_ctx.type, node_ctx.mark);
else if (node_ctx.srcRev && node_ctx.textLength != LENGTH_UNKNOWN)
node_ctx.srcMode = repo_replace(node_ctx.dst, node_ctx.mark);
else if ((node_ctx.type == REPO_MODE_DIR && !node_ctx.srcRev) ||
node_ctx.textLength != LENGTH_UNKNOWN)
repo_add(node_ctx.dst, node_ctx.type, node_ctx.mark);
}
if (node_ctx.propLength == LENGTH_UNKNOWN && node_ctx.srcMode)
node_ctx.type = node_ctx.srcMode;
if (node_ctx.mark)
fast_export_blob(node_ctx.type, node_ctx.mark, node_ctx.textLength);
else if (node_ctx.textLength != LENGTH_UNKNOWN)
buffer_skip_bytes(node_ctx.textLength);
}
static void handle_node(void)
{
const uint32_t type = node_ctx.type;
const int have_props = node_ctx.propLength != LENGTH_UNKNOWN;
const int have_text = node_ctx.text_length != -1;
/*
* Old text for this node:
* NULL - directory or bug
* empty_blob - empty
* "<dataref>" - data retrievable from fast-import
*/
static const char *const empty_blob = "::empty::";
const char *old_data = NULL;
uint32_t old_mode = REPO_MODE_BLB;
if (node_ctx.action == NODEACT_DELETE) {
if (have_text || have_props || node_ctx.srcRev)
die("invalid dump: deletion node has "
"copyfrom info, text, or properties");
repo_delete(node_ctx.dst.buf);
return;
}
if (node_ctx.action == NODEACT_REPLACE) {
repo_delete(node_ctx.dst.buf);
node_ctx.action = NODEACT_ADD;
}
if (node_ctx.srcRev) {
repo_copy(node_ctx.srcRev, node_ctx.src.buf, node_ctx.dst.buf);
if (node_ctx.action == NODEACT_ADD)
node_ctx.action = NODEACT_CHANGE;
}
if (have_text && type == REPO_MODE_DIR)
die("invalid dump: directories cannot have text attached");
/*
* Find old content (old_data) and decide on the new mode.
*/
if (node_ctx.action == NODEACT_CHANGE && !*node_ctx.dst.buf) {
if (type != REPO_MODE_DIR)
die("invalid dump: root of tree is not a regular file");
old_data = NULL;
} else if (node_ctx.action == NODEACT_CHANGE) {
uint32_t mode;
old_data = repo_read_path(node_ctx.dst.buf, &mode);
if (mode == REPO_MODE_DIR && type != REPO_MODE_DIR)
die("invalid dump: cannot modify a directory into a file");
if (mode != REPO_MODE_DIR && type == REPO_MODE_DIR)
die("invalid dump: cannot modify a file into a directory");
node_ctx.type = mode;
old_mode = mode;
} else if (node_ctx.action == NODEACT_ADD) {
if (type == REPO_MODE_DIR)
old_data = NULL;
else if (have_text)
old_data = empty_blob;
else
die("invalid dump: adds node without text");
} else {
die("invalid dump: Node-path block lacks Node-action");
}
/*
* Adjust mode to reflect properties.
*/
if (have_props) {
if (!node_ctx.prop_delta)
node_ctx.type = type;
if (node_ctx.propLength)
read_props();
}
/*
* Save the result.
*/
if (type == REPO_MODE_DIR) /* directories are not tracked. */
return;
assert(old_data);
if (old_data == empty_blob)
/* For the fast_export_* functions, NULL means empty. */
old_data = NULL;
if (!have_text) {
fast_export_modify(node_ctx.dst.buf, node_ctx.type, old_data);
return;
}
if (!node_ctx.text_delta) {
fast_export_modify(node_ctx.dst.buf, node_ctx.type, "inline");
fast_export_data(node_ctx.type, node_ctx.text_length, &input);
return;
}
fast_export_modify(node_ctx.dst.buf, node_ctx.type, "inline");
fast_export_blob_delta(node_ctx.type, old_mode, old_data,
node_ctx.text_length, &input);
}
