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show undo diff (#3213)

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Exposes undo operations via the C API, and uses those to show a (new, differently formatted) diff before committing the undo.
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ryneeverett 2024-02-09 22:11:14 -05:00 • committed by GitHub
parent 89df80c9f0
commit 34c0e67469
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GPG key ID: B5690EEEBB952194
18 changed files with 646 additions and 66 deletions
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51
src/TDB2.cpp
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@ -42,6 +42,7 @@
#include <main.h>
#include <util.h>
#include "tc/Server.h"
#include "tc/util.h"
bool TDB2::debug_mode = false;
static void dependency_scan (std::vector<Task> &);
@ -207,10 +208,58 @@ void TDB2::get_changes (std::vector <Task>& changes)
////////////////////////////////////////////////////////////////////////////////
void TDB2::revert ()
{
replica.undo (NULL);
auto undo_ops = replica.get_undo_ops();
if (undo_ops.len == 0) {
std::cout << "No operations to undo.";
return;
}
if (confirm_revert(undo_ops)) {
// Has the side-effect of freeing undo_ops.
replica.commit_undo_ops(undo_ops, NULL);
} else {
replica.free_replica_ops(undo_ops);
}
replica.rebuild_working_set (false);
}
////////////////////////////////////////////////////////////////////////////////
bool TDB2::confirm_revert (struct tc::ffi::TCReplicaOpList undo_ops)
{
// TODO Use show_diff rather than this basic listing of operations, though
// this might be a worthy undo.style itself.
std::cout << "The following " << undo_ops.len << " operations would be reverted:\n";
for (size_t i = 0; i < undo_ops.len; i++) {
std::cout << "- ";
tc::ffi::TCReplicaOp op = undo_ops.items[i];
switch(op.operation_type) {
case tc::ffi::TCReplicaOpType::Create:
std::cout << "Create " << replica.get_op_uuid(op);
break;
case tc::ffi::TCReplicaOpType::Delete:
std::cout << "Delete " << replica.get_op_old_task_description(op);
break;
case tc::ffi::TCReplicaOpType::Update:
std::cout << "Update " << replica.get_op_uuid(op) << "\n";
std::cout << " " << replica.get_op_property(op) << ": " << option_string(replica.get_op_old_value(op)) << " -> " << option_string(replica.get_op_value(op));
break;
case tc::ffi::TCReplicaOpType::UndoPoint:
throw std::string ("Can't undo UndoPoint.");
break;
default:
throw std::string ("Can't undo non-operation.");
break;
}
std::cout << "\n";
}
return ! Context::getContext ().config.getBoolean ("confirmation") ||
confirm ("The undo command is not reversible. Are you sure you want to revert to the previous state?");
}
////////////////////////////////////////////////////////////////////////////////
std::string TDB2::option_string(std::string input) {
return input == "" ? "<empty>" : input;
}
////////////////////////////////////////////////////////////////////////////////
void TDB2::show_diff (
const std::string& current,