SwiftLint
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Published
20 hours ago •
realm
realm
“swiftlint quit unexpectedly.” as Build Tool Plugin w/ custom rules
New Issue Checklist
- [X] Updated SwiftLint to the latest version
- [X] I searched for existing GitHub issues
Describe the bug
SwiftLint crashes (EXC_CRASH (SIGABRT)) when used as a Build Tool Plugin, with certain custom rules (see Environment).
macOS Problem Report dialog:
-------------------------------------
Translated Report (Full Report Below)
-------------------------------------
Process: swiftlint [21508]
Path: /Users/USER/Library/Developer/Xcode/DerivedData/MapsGL_Prototype-cvtvxgsihvkahdfubyhlchwstanh/SourcePackages/artifacts/swiftlint/SwiftLintBinary/SwiftLintBinary.artifactbundle/swiftlint-0.53.0-macos/bin/swiftlint
Identifier: swiftlint
Version: ???
Code Type: ARM-64 (Native)
Parent Process: Xcode [2757]
Responsible: Xcode [2757]
User ID: 501
Date/Time: 2023-10-17 13:30:23.5834 -0500
OS Version: macOS 13.6 (22G120)
Report Version: 12
Anonymous UUID: 48F91BEB-D548-5481-807A-49062AD093F7
Sleep/Wake UUID: 70F5F817-9D02-460F-BEDC-3844C0547FF0
Time Awake Since Boot: 80000 seconds
Time Since Wake: 271 seconds
System Integrity Protection: enabled
Crashed Thread: 1
Exception Type: EXC_CRASH (SIGABRT)
Exception Codes: 0x0000000000000000, 0x0000000000000000
Termination Reason: Namespace SIGNAL, Code 6 Abort trap: 6
Terminating Process: swiftlint [21508]
Application Specific Information:
abort() called
Thread 0:: Dispatch queue: com.apple.main-thread
0 libsystem_kernel.dylib 0x18b8fff34 mach_msg2_trap + 8
1 libsystem_kernel.dylib 0x18b912260 mach_msg2_internal + 80
2 libsystem_kernel.dylib 0x18b908b98 mach_msg_overwrite + 604
3 libsystem_kernel.dylib 0x18b9002b0 mach_msg + 24
4 CoreFoundation 0x18ba1e774 __CFRunLoopServiceMachPort + 160
5 CoreFoundation 0x18ba1d054 __CFRunLoopRun + 1208
6 CoreFoundation 0x18ba1c448 CFRunLoopRunSpecific + 612
7 CoreFoundation 0x18baa152c CFRunLoopRun + 64
8 libswift_Concurrency.dylib 0x21911685c swift_task_asyncMainDrainQueueImpl() + 40
9 libswift_Concurrency.dylib 0x219116834 swift_task_asyncMainDrainQueue + 100
10 swiftlint 0x10080f088 main + 84
11 dyld 0x18b5e7f28 start + 2236
Thread 1 Crashed:
0 libsystem_kernel.dylib 0x18b908744 __pthread_kill + 8
1 libsystem_pthread.dylib 0x18b93fc28 pthread_kill + 288
2 libsystem_c.dylib 0x18b84dae8 abort + 180
3 swiftlint 0x100b20968 0x100804000 + 3262824
4 swiftlint 0x100b1d690 0x100804000 + 3249808
5 swiftlint 0x1008431d8 0x100804000 + 258520
6 swiftlint 0x10083b760 0x100804000 + 227168
7 swiftlint 0x1008420f8 0x100804000 + 254200
8 swiftlint 0x10081a4ed 0x100804000 + 91373
9 swiftlint 0x10081a8fd 0x100804000 + 92413
10 swiftlint 0x10107050d 0x100804000 + 8832269
11 swiftlint 0x10080f105 0x100804000 + 45317
12 libswift_Concurrency.dylib 0x21911727d completeTaskAndRelease(swift::AsyncContext*, swift::SwiftError*) + 1
Thread 2:
0 libsystem_pthread.dylib 0x18b93ad8c start_wqthread + 0
Thread 3:
0 libsystem_pthread.dylib 0x18b93ad8c start_wqthread + 0
Thread 1 crashed with ARM Thread State (64-bit):
x0: 0x0000000000000000 x1: 0x0000000000000000 x2: 0x0000000000000000 x3: 0x0000000000000000
x4: 0x0000000000000016 x5: 0x0000000000000001 x6: 0x0000000000000000 x7: 0x0000000000000403
x8: 0x44f4eb77995de61d x9: 0x44f4eb76f635d61d x10: 0x0000000000000e20 x11: 0x00000000000007fb
x12: 0x00000000af0c8862 x13: 0x00000000000007fd x14: 0x00000000af2c9072 x15: 0x00000000af0c8862
x16: 0x0000000000000148 x17: 0x00000001eb4ef3f8 x18: 0x0000000000000000 x19: 0x0000000000000006
x20: 0x000000016f683000 x21: 0x0000000000000c0b x22: 0x000000016f6830e0 x23: 0x000060000220ce20
x24: 0x0000000000000000 x25: 0x0000000000000000 x26: 0x0000600001d0c0f0 x27: 0x0000000000000000
x28: 0x0000000000000000 fp: 0x000000016f6825a0 lr: 0x000000018b93fc28
sp: 0x000000016f682580 pc: 0x000000018b908744 cpsr: 0x40001000
far: 0x00000001e6f7bff8 esr: 0x56000080 Address size fault
Binary Images:
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0x18b8ff000 - 0x18b938fe7 libsystem_kernel.dylib (*) <1adb8ddc-762b-3b9f-a290-ca1e5ee7b419> /usr/lib/system/libsystem_kernel.dylib
0x18b99f000 - 0x18be78fff com.apple.CoreFoundation (6.9) <77747d94-2513-3133-a53b-e032d73058d7> /System/Library/Frameworks/CoreFoundation.framework/Versions/A/CoreFoundation
0x2190cf000 - 0x219129ffb libswift_Concurrency.dylib (*) <6b78ae7c-22cc-3dae-b8a6-bf669887afc8> /usr/lib/swift/libswift_Concurrency.dylib
0x18b5e2000 - 0x18b670587 dyld (*) <49204446-242b-3d1e-9704-32f8ac99723e> /usr/lib/dyld
0x18b939000 - 0x18b945fff libsystem_pthread.dylib (*) <1f30fb9a-bdf9-32db-a709-8417666a7e45> /usr/lib/system/libsystem_pthread.dylib
0x18b7d7000 - 0x18b855ff7 libsystem_c.dylib (*) <949943e2-52cb-3c95-ab08-7ed984333d03> /usr/lib/system/libsystem_c.dylib
External Modification Summary:
Calls made by other processes targeting this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by this process:
task_for_pid: 0
thread_create: 0
thread_set_state: 0
Calls made by all processes on this machine:
task_for_pid: 8
thread_create: 0
thread_set_state: 44
VM Region Summary:
ReadOnly portion of Libraries: Total=925.9M resident=0K(0%) swapped_out_or_unallocated=925.9M(100%)
Writable regions: Total=686.0M written=0K(0%) resident=0K(0%) swapped_out=0K(0%) unallocated=686.0M(100%)
VIRTUAL REGION
REGION TYPE SIZE COUNT (non-coalesced)
=========== ======= =======
Activity Tracing 256K 1
Kernel Alloc Once 32K 1
MALLOC 171.2M 17
MALLOC guard page 96K 5
MALLOC_MEDIUM (reserved) 120.0M 1 reserved VM address space (unallocated)
MALLOC_NANO (reserved) 384.0M 1 reserved VM address space (unallocated)
STACK GUARD 56.1M 4
Stack 9808K 4
__AUTH 315K 60
__AUTH_CONST 3741K 145
__DATA 4002K 141
__DATA_CONST 4523K 147
__DATA_DIRTY 361K 58
__LINKEDIT 804.3M 2
__OBJC_RO 66.4M 1
__OBJC_RW 2012K 1
__TEXT 121.6M 155
dyld private memory 272K 2
mapped file 29.2M 3
shared memory 64K 4
=========== ======= =======
TOTAL 1.7G 753
TOTAL, minus reserved VM space 1.2G 753
-----------
Full Report
-----------
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Running swiftlint lint on the CLI works displays the following warning:
warning: Cannot parse YAML file: 95:21: error: scanner: while parsing a quoted scalar in line 95, column 12
found unknown escape character:
regex: "(?-s)(\n\s*){3,}\n(\t| )"
^ – Falling back to default configuration
but then continues on with:
Linting Swift files in current working directory
Linting 'AerisCustomLayerHost.swift' (1/98)
Linting 'MapsGL_PrototypeApp.swift' (2/98)
…
Done linting! Found 2384 violations, 53 serious in 98 files.
and does not crash.
(This is issue is not about the bad config itself; I'm aware and I'll fix it; this issue about about the plugin EXC_CRASH-ing.)
Environment
- SwiftLint version: 0.53.0 package version (also 0.53.0 for the also-installed CLI standalone version)
- Installation method used: SPM via Xcode project's Package Dependencies, and also via Package.swift (but also installed on the CLI with brew)
- Paste your configuration file:
# By default, SwiftLint uses a set of sensible default rules you can adjust:
disabled_rules: # rule identifiers turned on by default to exclude from running
- colon
- comment_spacing
- empty_enum_arguments
- identifier_name
- opening_brace
- private_over_fileprivate
- redundant_optional_initialization
- statement_position
- trailing_whitespace
opt_in_rules: # some rules are turned off by default, so you need to opt-in
- indentation_width
- vertical_whitespace_closing_braces
- vertical_whitespace_opening_braces
- yoda_condition
#- empty_count # find all the available rules by running: `swiftlint rules`
# Alternatively, specify all rules explicitly by uncommenting this option:
# only_rules: # delete `disabled_rules` & `opt_in_rules` if using this
# - empty_parameters
# - vertical_whitespace
analyzer_rules: # rules run by `swiftlint analyze`
- explicit_self
included: # case-sensitive paths to include during linting. `--path` is ignored if present
#- Sources
excluded: # case-sensitive paths to ignore during linting. Takes precedence over `included`
- Carthage
- Pods
- Sources/ExcludedFolder
- Sources/ExcludedFile.swift
- Sources/*/ExcludedFile.swift # exclude files with a wildcard
# If true, SwiftLint will not fail if no lintable files are found.
allow_zero_lintable_files: false
# If true, SwiftLint will treat all warnings as errors.
strict: false
# configurable rules can be customized from this configuration file
# binary rules can set their severity level
cyclomatic_complexity:
ignores_case_statements: true
force_cast: warning
force_try: warning
identifier_name:
min_length:
warning: 2
error: 1
large_tuple:
warning: 3
error: 999
line_length:
warning: 200
error: 999
ignores_urls: true
ignores_comments: true
ignores_interpolated_strings: true
switch_case_alignment:
indented_cases: true
trailing_comma:
mandatory_comma: true
type_name:
min_lenth:
warning: 2
error: 1
allowed_symbols: ["_"]
vertical_whitespace:
max_empty_lines: 3
reporter: "xcode" # reporter type (xcode, json, csv, checkstyle, codeclimate, junit, html, emoji, sonarqube, markdown, github-actions-logging, summary)
custom_rules:
stub:
included:
- ".*\\.swift"
name: "Stub Violation"
regex: "STUB"
match_kinds:
- comment
message: "STUB code should be resolved"
severity: warning
# This custom rule seems to be causing the crashes— comment it out and there's no issues.
max_double_blank_lines_in_indented_code:
included:
- ".*\\.swift"
name: "Maximum of Double Blank Lines In Indented Code"
regex: "(?-s)(\n\s*){3,}\n(\t| )"
message: "Maximum of Double Blank Lines In Indented Code"
severity: warning
triple_blank_lines_before_sectional_mark:
included:
- ".*\\.swift"
name: "Triple Blank Lines Before Sectional Mark"
regex: "(?<!\n\n\n)\n// MARK: -"
match_kinds:
- comment
message: "`MARK -` comments should be preceded by 3 blank lines"
severity: warning
triple_blank_lines_after_imports:
included:
- ".*\\.swift"
name: "Triple Blank Lines After Imports"
regex: "(?-s)import .+\n(?!\n\n\n|\n?(@testable )?import|\n?\/\/.+\nimport)"
message: "The last import should be followed by 3 blank lines. (Up to 1 blank line and comments are allowed between imports.)"
severity: warning
- Are you using nested configurations? Nope If so, paste their relative paths and respective contents.
- Which Xcode version are you using (check
xcodebuild -version)? Xcode 15.0 Build version 15A240d - Do you have a sample that shows the issue? Crash dialog pops up as soon as you run Product > Build (⌘B) in Xcode. Shouldn't require any specific source code.
So this has been bothering me for a while. SwiftLint is a bit over-enthusiastic about calling its equivalent of fatalError in a few cases - maybe even just this one, and that function calls abort().
Your config will do the same on the command line - this is not Build Tool Plugin related.
% swiftlint --config /tmp/t.yml
The operation couldn’t be completed. (SwiftLintCore.Issue error 6.)
Could not read configuration: file Configuration.swift, line 236
zsh: abort swiftlint --config /tmp/t.yml
https://github.com/realm/SwiftLint/blob/7d09c6b6279d9b6a2c366aae560d75ee6085c3f9/Source/SwiftLintCore/Models/Configuration.swift#L245
We should probably just exit(2) or something in this particular case.
My expectation as a user is that Xcode's build process should abort, with a single error in the Issues Navigator explaining the .swiftlint.yml formatting error (or whatever other reason SwiftLint couldn't continue).
I'm not sure if that's as simple as reporting a single error line through the normal mechanisms (a stdout line with error: …, right?) before exit()ing, or it's more involved than that.