read old autosaves
This commit is contained in:
Dominik Demuth
parent
c55a983b54
commit
cbcc9308ad
@ -34,8 +34,6 @@ def do_autosave():
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backuping = BackupManager()
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files = backuping.search_unsaved()
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print(files)
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print(sys.executable, sys.argv)
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pid = os.getpid()
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bck_name = backuping.create_entry(pid)
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@ -43,12 +41,17 @@ mplQt = NMRMainWindow(bck_file=bck_name)
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do_autosave()
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for f in files:
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mplQt.management.load_files(f)
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f.unlink()
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timer = QtCore.QTimer()
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timer.timeout.connect(do_autosave)
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timer.start(3 * 1000)
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timer.start(3 * 60 * 1000)
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app.aboutToQuit.connect(backuping.close)
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mplQt.show()
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sys.exit(app.exec())
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@ -19,11 +19,11 @@ class BackupManager(QtCore.QObject):
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con = sqlite3.connect(DB_FILE)
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con.execute(
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"CREATE TABLE IF NOT EXISTS sessions "
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"(pid INTEGER NOT NULL, backup_file TEXT NOT NULL, last_save INTEGER);"
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"(pid INTEGER NOT NULL, backup_file TEXT NOT NULL, last_save TEXT);"
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)
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def create_entry(self, pid: int):
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backup_path = config_paths() / f'{datetime.now().strftime("%Y-%m-%d_%H%M%S")}.nmr'
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backup_path = config_paths() / f'autosave_{datetime.now().strftime("%Y-%m-%d_%H%M%S")}_{pid}.nmr'
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con = sqlite3.connect(DB_FILE)
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con.execute('INSERT INTO sessions VALUES(?, ?, ?);',
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@ -34,17 +34,78 @@ class BackupManager(QtCore.QObject):
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return backup_path
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def remove_entry(self, pid: int = None):
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def update_last_save(self):
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con = sqlite3.connect(DB_FILE)
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con.execute(
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'UPDATE sessions SET last_save = ? WHERE pid = ?',
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(datetime.now().strftime("%Y-%m-%d %H:%M:%S"), self._pid)
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)
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con.commit()
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con.close()
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def search_unsaved(self):
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con = sqlite3.connect(DB_FILE)
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cursor = con.cursor()
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res = cursor.execute('SELECT sessions.* FROM sessions;')
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con.commit()
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data = res.fetchall()
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con.close()
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missing_processes = []
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for pid, fname, save_date in data:
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try:
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os.kill(pid, 0)
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except ProcessLookupError:
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if Path(fname).exists():
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missing_processes.append((pid, fname, save_date))
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else:
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# remove entries without valid file
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self.remove_row(pid)
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if missing_processes:
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msg = QLonelyBackupWindow()
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msg.add_files(missing_processes)
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msg.exec()
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toberead = msg.recover
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for pid in toberead[0]:
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self.remove_file(pid)
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for pid in toberead[1]:
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self.remove_row(pid)
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return list(toberead[1].values())
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return []
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def remove_row(self, pid):
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con = sqlite3.connect(DB_FILE)
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con.execute('DELETE FROM sessions WHERE pid = ?', (pid,))
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con.commit()
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con.close()
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def remove_file(self, pid: int = None):
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if pid is None:
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pid = self._pid
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con = sqlite3.connect(DB_FILE)
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cursor = con.cursor()
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res = cursor.execute('DELETE FROM sessions WHERE pid = ?;', (pid,))
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# remove backup file
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res = cursor.execute('SELECT sessions.backup_file FROM sessions WHERE pid = ?', (pid,))
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con.commit()
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self.delete_db_if_empty()
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fname = Path(res.fetchone()[0])
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con.close()
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fname.unlink(missing_ok=True)
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# because autosave backups in a *.nmr.0 file and then moves it to *.nmr we look also for this one.
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fname.with_suffix('.nmr.0').unlink(missing_ok=True)
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# after removal of file also remove entry
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self.remove_row(pid)
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def delete_db_if_empty(self):
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con = sqlite3.connect(DB_FILE)
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@ -54,59 +115,93 @@ class BackupManager(QtCore.QObject):
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remaining_processes = res.fetchone()
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con.close()
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if remaining_processes is None:
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Path(DB_FILE).unlink()
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def close(self):
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self.remove_entry()
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self.remove_file()
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self.delete_db_if_empty()
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def search_unsaved(self):
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con = sqlite3.connect(DB_FILE)
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cursor = con.cursor()
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res = cursor.execute('SELECT sessions.pid, sessions.backup_file FROM sessions;')
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con.commit()
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data = res.fetchall()
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con.close()
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missing_processes = []
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class QLonelyBackupWindow(QtWidgets.QDialog):
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def __init__(self, parent=None):
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super().__init__(parent=parent)
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self.recover = [[], {}] # list of pid to delete, dict of files to read {pid: file}
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for pid, fname in data:
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try:
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os.kill(pid, 0)
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except ProcessLookupError:
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missing_processes.append((pid, fname))
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self.setWindowTitle('Adopt a file!')
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self.resize(720, 320)
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if missing_processes:
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msg = QtWidgets.QMessageBox()
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msg.exec()
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layout = QtWidgets.QVBoxLayout(self)
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self.label = QtWidgets.QLabel(self)
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self.label.setText('Abandoned backup file(s) looking for a loving home!\n'
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'(Files will all be loaded to same instance)')
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layout.addWidget(self.label)
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def update_last_save(self):
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con = sqlite3.connect(DB_FILE)
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con.execute(
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'UPDATE sessions SET last_save = ? WHERE pid = ?',
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(datetime.now(), self._pid)
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)
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con.commit()
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con.close()
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#
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# def check_for_backup(self):
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# backup_by_date = sorted(backups, key=lambda x: x[1])
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# msg = (QtWidgets.QMessageBox()
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# , 'Backup found',)
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# f'{len(backups)} backup files in directory {backup_by_date[-1][0].parent} found.\n\n'
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# f'Latest backup date: {backup_by_date[-1][1]}\n\n'
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# f'Press Ok to load, Cancel to delete backup, Close to do nothing.',
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# QtWidgets.QMessageBox.Ok | QtWidgets.QMessageBox.Cancel | QtWidgets.QMessageBox.Close
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# )
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#
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# if msg == QtWidgets.QMessageBox.Ok:
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# self.management.load_files([str(backup_by_date[-1][0])])
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# backup_by_date[-1][0].unlink()
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# elif msg == QtWidgets.QMessageBox.Cancel:
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# backup_by_date[-1][0].unlink()
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# else:
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# pass
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#
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self.table = QtWidgets.QTableWidget(self)
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self.table.setColumnCount(4)
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self.table.setHorizontalHeaderLabels(['File name', 'Last saved', 'File size', 'Action'])
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self.table.setGridStyle(QtCore.Qt.PenStyle.DashLine)
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# self.table.horizontalHeader().setStretchLastSection(True)
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self.table.verticalHeader().setVisible(False)
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self.table.horizontalHeader().setSectionResizeMode(0, QtWidgets.QHeaderView.Stretch)
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layout.addWidget(self.table)
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self.buttons = QtWidgets.QDialogButtonBox(self)
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self.buttons.setOrientation(QtCore.Qt.Orientation.Horizontal)
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self.buttons.setStandardButtons(QtWidgets.QDialogButtonBox.Ok)
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layout.addWidget(self.buttons)
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self.buttons.accepted.connect(self.accept)
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def add_files(self, entries):
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self.table.setRowCount(len(entries))
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for i, (pid, path, date) in enumerate(entries):
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path = Path(path)
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item1 = QtWidgets.QTableWidgetItem(path.name)
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item1.setFlags(QtCore.Qt.ItemFlag.ItemIsEnabled)
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item1.setData(QtCore.Qt.ItemDataRole.UserRole, pid)
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item1.setData(QtCore.Qt.ItemDataRole.UserRole+1, path)
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self.table.setItem(i, 0, item1)
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item2 = QtWidgets.QTableWidgetItem(date)
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item2.setFlags(QtCore.Qt.ItemFlag.ItemIsEnabled)
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self.table.setItem(i, 1, item2)
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size = path.stat().st_size
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size_cnt = 0
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while size > 1024:
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# make file size human-readable
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size /= 1024
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size_cnt += 1
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if size_cnt == 5:
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break
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byte = ['bytes', 'kB', 'MiB', 'GiB', 'TiB', 'PiB'][size_cnt]
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item3 = QtWidgets.QTableWidgetItem(f'{size:.2f} {byte}')
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item3.setFlags(QtCore.Qt.ItemFlag.ItemIsEnabled)
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self.table.setItem(i, 2, item3)
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cw = QtWidgets.QComboBox(self)
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cw.addItems(['Load', 'Delete', 'Keep for later'])
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self.table.setCellWidget(i, 3, cw)
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self.table.resizeColumnsToContents()
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def accept(self):
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for i in range(self.table.rowCount()):
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decision = self.table.cellWidget(i, 3).currentIndex()
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item = self.table.item(i, 0)
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pid = item.data(QtCore.Qt.ItemDataRole.UserRole)
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if decision == 0:
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# load file
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self.recover[1][pid] = item.data(QtCore.Qt.ItemDataRole.UserRole+1)
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elif decision == 1:
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# delete
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self.recover[0].append(pid)
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else:
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# do nothing
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pass
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super().accept()
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@ -1,4 +1,3 @@
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import sys
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from pathlib import Path
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from .codeeditor import _make_textformats
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@ -6,12 +5,14 @@ from ..Qt import QtWidgets, QtCore, QtGui
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from nmreval.configs import config_paths
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STYLES = {'INFO': _make_textformats('black'),
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STYLES = {
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'INFO': _make_textformats('black'),
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'WARNING': _make_textformats('blue'),
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'ERROR': _make_textformats('red', 'bold'),
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'DEBUG': _make_textformats('black', 'italic'),
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'file': _make_textformats('red', 'italic'),
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'PyError': _make_textformats('red', 'bold-italic')}
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'PyError': _make_textformats('red', 'bold-italic'),
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}
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class LogHighlighter(QtGui.QSyntaxHighlighter):
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@ -1,9 +1,8 @@
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from __future__ import annotations
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import datetime
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import os
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import pathlib
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import re
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import time
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from pathlib import Path
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from numpy import geomspace, linspace
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@ -34,7 +33,7 @@ from ..math.smooth import QSmooth
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from ..nmr.coupling_calc import QCoupCalcDialog
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from ..nmr.t1_from_tau import QRelaxCalc
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from .._py.basewindow import Ui_BaseWindow
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from ..lib.utils import UpdateDialog, Updater
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from ..lib.utils import UpdateDialog
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class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
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@ -1110,6 +1109,7 @@ class NMRMainWindow(QtWidgets.QMainWindow, Ui_BaseWindow):
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# TODO better separate thread may it takes some time to save
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self.status.setText('Autosave...')
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success = NMRWriter(self.management.graphs, self.management.data).export(self.__backup_path.with_suffix('.nmr.0'))
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if success:
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self.__backup_path.with_suffix('.nmr.0').rename(self.__backup_path)
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