feat: support to set piece length for preheat

[gaius-qi]

Description

This pull request introduces the PieceLength parameter to various job management and scheduling functions, allowing for more granular control over piece lengths during file download tasks. This change affects multiple files and functions across the codebase, ensuring that the PieceLength parameter is properly handled and propagated through the system.

Key changes include:

Introduction of PieceLength Parameter:

• internal/job/types.go: Added PieceLength to the PreheatRequest struct.
• manager/types/job.go: Added PieceLength to PreheatArgs, GetTaskArgs, and DeleteTaskArgs. [1] [2] [3]

Modification of TaskID Generation:

• pkg/idgen/task_id.go: Updated TaskIDV2 to include PieceLength in the task ID generation process.
• pkg/idgen/task_id_test.go: Added tests for TaskIDV2 to handle PieceLength. [1] [2] [3] [4]

Job Management Updates:

• manager/job/preheat.go: Incorporated PieceLength in CreatePreheat and parseLayers functions. [1] [2]
• manager/job/task.go: Updated CreateGetTask and CreateDeleteTask to include PieceLength in the task ID generation. [1] [2]

Scheduler and Resource Updates:

• scheduler/job/job.go: Updated preheat, preheatAllSeedPeers, preheatAllPeers, and preheatV2 to handle PieceLength. [1] [2] [3] [4]
• scheduler/resource/standard/task.go: Changed PieceLength type in Task struct and related functions. [1] [2]

Test and Utility Updates:

• scheduler/resource/standard/task_test.go: Updated mock task ID generation to include PieceLength.
• scheduler/scheduling/evaluator/evaluator_base_test.go: Updated mock task ID generation to include PieceLength.
• scheduler/scheduling/scheduling_test.go: Updated mock task ID generation to include PieceLength.
• scheduler/service/service_v1_test.go: Updated mock task ID generation to include PieceLength.
• scheduler/service/service_v2.go: Updated task options to handle PieceLength. [1] [2]
• test/e2e/v2/util/file.go: Updated GetTaskID to include PieceLength.
• test/e2e/v2/util/task.go: Added PieceLength to task ID struct and related functions. [1] [2]

Related Issue

Motivation and Context

Screenshots (if appropriate)

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation Update (if none of the other choices apply)

Checklist

• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.

[codecov]

Codecov Report

Attention: Patch coverage is 50.00000% with 8 lines in your changes missing coverage. Please review.

Project coverage is 35.12%. Comparing base (3d2eee6) to head (70b1ace).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
scheduler/job/job.go	0.00%	5 Missing ⚠️
manager/job/task.go	0.00%	2 Missing ⚠️
manager/job/preheat.go	50.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3848      +/-   ##
==========================================
- Coverage   35.15%   35.12%   -0.04%     
==========================================
  Files         337      337              
  Lines       39282    39284       +2     
==========================================
- Hits        13811    13798      -13     
- Misses      24571    24582      +11     
- Partials      900      904       +4     

Flag	Coverage Δ
unittests	35.12% <50.00%> (-0.04%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Files with missing lines	Coverage Δ
pkg/idgen/task_id.go	80.85% <100.00%> (+1.78%)	⬆️
scheduler/resource/standard/task.go	78.48% <ø> (-0.36%)	⬇️
scheduler/scheduling/scheduling.go	63.34% <ø> (-0.06%)	⬇️
scheduler/service/service_v1.go	85.33% <ø> (ø)
scheduler/service/service_v2.go	46.49% <100.00%> (-0.05%)	⬇️
manager/job/preheat.go	46.09% <50.00%> (+0.02%)	⬆️
manager/job/task.go	69.69% <0.00%> (ø)
scheduler/job/job.go	0.00% <0.00%> (ø)

... and 3 files with indirect coverage changes

[chlins]

lgtm