🧭 Introduction

Overview

PyGerber provides a linter (diagnostic tool) for analyzing Gerber code. The linter is a tool that focuses on checking the code itself, not the design of the PCB. Therefore it includes checks for deprecated features, common deviations from Gerber standard and other Gerber focused checks, but does not contain any check that verify the quality of the PCB design, like connectivity, trace width, etc.

The Gerber linter is a tool that has limited usefulness for the average user, but can be very handy for verifying the quality of generated Gerber code, especially while working on solutions that modify or generate Gerber code, to ensure compliance with latest Gerber standard.

API

Gerber linter API is available in the pygerber.gerber.linter module. Simplified interface consists of a single function lint that takes a Gerber AST as input and returns a list of rule violations detected in AST.

Here is a simple example of how to use the linter:

from pygerber.gerber.linter import lint
from pygerber.gerber.parser import parse
from pygerber.examples import ExamplesEnum, load_example

gerber_source_code = load_example(ExamplesEnum.fc_poly_b_cu)

ast = parse(gerber_source_code)

for rule in lint(ast):
    print(rule.line, rule.rule_id, rule.title)

$ python example.py

48 DEP001 Use of deprecated G54 code.
50 GRB001 Redundant G01 command.
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80 DEP001 Use of deprecated G54 code.
81 GRB001 Redundant G01 command.
82 GRB001 Redundant G01 command.
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84 DEP001 Use of deprecated G54 code.
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86 GRB001 Redundant G01 command.
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88 DEP001 Use of deprecated G54 code.
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100 DEP001 Use of deprecated G54 code.
101 DEP001 Use of deprecated G54 code.
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137 DEP001 Use of deprecated G54 code.
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144 DEP001 Use of deprecated G54 code.
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317 DEP001 Use of deprecated G54 code.
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322 GRB001 Redundant G01 command.
324 DEP001 Use of deprecated G54 code.
325 GRB001 Redundant G01 command.
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376 DEP001 Use of deprecated G54 code.
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379 GRB001 Redundant G01 command.
380 GRB001 Redundant G01 command.
381 GRB001 Redundant G01 command.
383 DEP001 Use of deprecated G54 code.
384 GRB001 Redundant G01 command.
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387 DEP001 Use of deprecated G54 code.
388 GRB001 Redundant G01 command.
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403 GRB001 Redundant G01 command.
406 DEP001 Use of deprecated G54 code.
407 GRB001 Redundant G01 command.
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480 DEP001 Use of deprecated G54 code.
481 GRB001 Redundant G01 command.
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505 DEP001 Use of deprecated G54 code.
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540 DEP001 Use of deprecated G54 code.
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555 DEP001 Use of deprecated G54 code.
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598 DEP001 Use of deprecated G54 code.
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645 DEP001 Use of deprecated G54 code.
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