System differential upgrade method, apparatus, and mobile terminal

A terminal comprising:

• a transmitter,
• a memory;
• and
• a processor coupled to the memory and the transmitter,
• wherein the processor is configured to:
• obtain an upgrade script and upgrade data, wherein the upgrade script comprises a file processing command and a file check command, wherein the file processing command comprises an identifier of a file to be upgraded, and wherein the file check command comprises a requirement of the file to be upgraded;
• save file content, a file path, and a file property of the file to be upgraded, wherein the file property comprises at least one of a user identifier (UID), a group identifier (GID), and an operation permission;
• check, according to the file check command, whether the file to be upgraded is of a specified version and meets the requirement of the file to be upgraded;
• upgrade, after saving the file content, the file path, and the file property and checking whether the file to be upgraded is of the specified version, the file to be upgraded according to the upgrade script and the upgrade data when the file to be upgraded is of the specified version and meets the requirement of the file to be upgraded, wherein the file to be upgraded corresponds to the identifier of the file to be upgraded in the file processing command;
• generate, according to the file processing command that is being executed currently in the upgrade script and the file to be upgraded corresponding to the file processing command that is being executed currently, rollback data and a rollback script corresponding to the file to be upgraded, wherein generating the rollback data and the rollback script comprises adding a patching command, the file check command, and a copy progress displaying command to the rollback script;
• and
• execute the rollback script according to the rollback data, the patching command, the file check command, and the copy progress displaying command when the upgrade fails.

A computer program product for use in conjunction with a terminal comprising a transmitter, the computer program product comprising a computer readable storage medium and a computer program mechanism embedded therein, and the computer program mechanism comprising instructions for:

• obtaining an upgrade script and upgrade data, wherein the upgrade script comprises a file processing command and a file check command, wherein the file processing command comprises an identifier of a file to be upgraded, and wherein the file check command comprises a requirement of the file to be upgraded;
• saving file content, a file path, and a file property of the file to be upgraded, wherein the file property comprises at least one of a user identifier (UID), a group identifier (GID), and an operation permission;
• checking, according to the file check command, whether the file to be upgraded is of a specified version and meets the requirement of the file to be upgraded;
• upgrading, after saving the file content, the file path, and the file property and checking whether the file to be upgraded is of the specified version, the file to be upgraded according to the upgrade script and the upgrade data when the file to be upgraded is of the specified version and meets the requirement of the file to be upgraded, wherein the file to be upgraded corresponds to the identifier of the file to be upgraded in the file processing command;
• generating, according to the file processing command that is being executed currently in the upgrade script and the file to be upgraded corresponding to the file processing command that is being executed currently, rollback data and a rollback script corresponding to the file to be upgraded, wherein generating the rollback data and the rollback script comprises adding a patching command, the file check command, and a copy progress displaying command to the rollback script;
• and
• executing the rollback script according to the rollback data, the patching command, the file check command, and the copy progress displaying command when the upgrade fails.