Commit Graph

644 Commits

Author SHA1 Message Date
Vidar Holen c4cc2debb7 Improve compatibility checks 2020-09-07 21:05:49 -07:00
Vidar Holen cfd68ee0c2 Give each sh/dash compatibility warning its own SC3xxx error code 2020-09-01 16:48:14 -07:00
Vidar Holen 58783ab3cc Allow specifying ranges in disable directives 2020-09-01 16:22:15 -07:00
Vidar Holen 43191fa71d Suppress SC2035 for echo * and printf * (fixes #2036) 2020-09-01 14:19:28 -07:00
Vidar Holen c9be7ab2eb Parse assignments according to spec (fixes #2022) 2020-08-23 18:46:13 -07:00
Vidar Holen 9e59bcca91 Upgrade SC2169 (unsupported in dash) from warning to error (fixes #2013) 2020-08-23 15:49:20 -07:00
Vidar Holen a62d9f10c2 Warn when using &/| between test statements 2020-08-23 15:43:33 -07:00
Vidar Holen 50067ddf94 Consider variables in -z/-n tests to be checked 2020-08-08 12:32:20 -07:00
Vidar Holen 3fa5b7d3bd Merge branch 'supportMinusNZ' of https://github.com/donnerpeter/shellcheck into donnerpeter-supportMinusNZ 2020-08-08 11:22:00 -07:00
Vidar Holen e779aedac3 Modernize getting mapfile array name 2020-08-07 16:41:18 -07:00
Vidar Holen 3ef1175566 Merge branch 'issue_1759_mapfile_proc_substition' of https://github.com/Gandalf-/shellcheck into Gandalf--issue_1759_mapfile_proc_substition 2020-08-07 15:57:59 -07:00
Vidar Holen 3e50a2fce8 Suppress SC2216 for du --files0-from or --exclude-from (fixes #1286) 2020-08-07 14:59:34 -07:00
Vidar Holen 1ac2c31728 Warn when shell functions blatantly recurse (fixes #1994) 2020-07-27 21:50:33 -07:00
Vidar Holen cc81bdee31 Improve SC1033/SC1034 message 2020-07-27 18:44:07 -07:00
Vidar Holen 34885142e7 Handle tilde expansion in pattern matching (fixes #1769) 2020-07-27 18:34:42 -07:00
Vidar Holen 14e6806092 Handle literal linefeeds in printf format strings (fixes #2007) 2020-07-25 17:36:22 -07:00
Vidar Holen 5d753212fb Improve handling of command prefixes like exec/command (fixes #2008) 2020-07-25 13:45:05 -07:00
Vidar Holen 5b86777f9d Warn about non-POSIX case modification expansions (fixes #1977) 2020-07-22 17:32:00 -07:00
Vidar Holen 210cdcd01a Treat $x/ or $(x)/ as ./ when finding sourced files (fixes #1998) 2020-06-28 17:24:07 -07:00
Vidar Holen b52f58473d
Merge pull request #1999 from aureliojargas/patch-1
SC1102: Fix typo in error message: substition
2020-06-28 16:04:56 -07:00
Vidar Holen 739eaadbf5 Warn about extra spaces between ((s in for((;;)) 2020-06-28 16:01:15 -07:00
Aurelio Jargas a61d8a232c
SC1102: Fix typo in error message: substition 2020-06-26 02:13:33 +02:00
Vidar Holen 12d9c1b76d Clarify that SC1090 refers to ShellCheck, not sh 2020-06-24 11:50:27 -07:00
Vidar Holen 5cf2c00ff7 Warn about defining and using an alias in a single command (fixes #1807) 2020-05-25 23:24:33 -07:00
Vidar Holen a08ad3bee9 Count $# as an argument reference in SC2120 2020-05-25 23:24:33 -07:00
Vidar Holen c2a15ce8e9 Allow disabling SC1072/SC1073 with annotations (fixes #1931) 2020-05-03 21:57:16 -07:00
Vidar Holen d6adbfde78 Improve SC2259/60/61 messages 2020-05-03 21:46:16 -07:00
Vidar Holen 2030b83607 Warn about duplicate uses of stdin/out/err 2020-05-03 11:54:25 -07:00
Vidar Holen 8aa40c43ed
Merge pull request #1926 from scop/spelling
Spelling fixes
2020-05-02 18:39:44 -07:00
Ville Skyttä 60e80e4ce1 Spelling fixes 2020-04-25 08:29:38 +03:00
Joseph C. Sible e0daa936d2 Revert "Use fromRight instead of reimplementing it"
We still support GHC 8.0, which didn't have fromRight.

This reverts commit 64c31d9142.
2020-04-24 22:14:08 -04:00
Vidar Holen 75863a887e
Merge pull request #1918 from josephcsible/getsuspiciousregexwildcard
Clean up and optimize getSuspiciousRegexWildcard
2020-04-12 15:32:00 -07:00
Vidar Holen 413f0048b8
Merge pull request #1917 from josephcsible/thenskip
Simplify thenSkip, and use in another location
2020-04-12 15:26:36 -07:00
Vidar Holen e7b5fb9742
Merge pull request #1907 from josephcsible/formatters
Clean up formatters
2020-04-12 15:23:17 -07:00
Vidar Holen 30523555af
Merge pull request #1906 from josephcsible/shellsupport
Simplify ShellSupport
2020-04-12 15:22:52 -07:00
Vidar Holen 58d3e50f43
Merge pull request #1905 from josephcsible/skiprepeating
Make skipRepeating lazier and faster
2020-04-12 15:21:39 -07:00
Vidar Holen 73cc11fd0a
Merge pull request #1901 from josephcsible/bracedstring
Mostly get rid of bracedString
2020-04-12 15:14:50 -07:00
Joseph C. Sible 163c710ba7 Clean up and optimize getSuspiciousRegexWildcard 2020-04-12 16:15:45 -04:00
Vidar Holen ab1610b004
Merge pull request #1903 from josephcsible/fixer
Only perform the comparisons once
2020-04-11 17:23:51 -07:00
Vidar Holen 148468be70
Merge pull request #1904 from josephcsible/commands
Simplify Commands
2020-04-11 17:23:39 -07:00
Vidar Holen 5eac721fcf
Merge pull request #1902 from josephcsible/astlib
Clean up ASTLib
2020-04-11 17:23:08 -07:00
Joseph C. Sible b58bb4ba9d Move bracedString to be local to its last use site 2020-04-11 19:24:11 -04:00
Joseph C. Sible 999b7e2596 Get rid of bracedString everywhere it's easy to 2020-04-11 19:24:11 -04:00
Joseph C. Sible a9d564a8bc Combine bracedString into getSingleUnmodifiedVariable
Everywhere we used getSingleUnmodifiedVariable, we just called bracedString on
the result. Move this into that function instead, and rename it accordingly.
2020-04-11 19:23:13 -04:00
Joseph C. Sible 8a7497c4f0 Simplify checkVariableBraces 2020-04-11 19:23:13 -04:00
Vidar Holen 1eac0d7340
Merge pull request #1900 from josephcsible/analyzerlib
Clean up AnalyzerLib
2020-04-11 16:21:20 -07:00
Vidar Holen f8c1ffb0dc
Merge pull request #1898 from josephcsible/nameexpansion
Simplify nameExpansion
2020-04-11 16:18:54 -07:00
Joseph C. Sible 3e17a20965 Simplify thenSkip, and use in another location 2020-04-11 17:29:28 -04:00
Joseph C. Sible 1c6202dba4 Avoid some awkward parentheses with forM_ 2020-04-05 22:25:19 -04:00
Joseph C. Sible 64c31d9142 Use fromRight instead of reimplementing it 2020-04-05 22:23:22 -04:00
Joseph C. Sible 8a6679fd8a Remove unnecessary fromMaybe and when from bashism 2020-04-05 22:03:50 -04:00
Joseph C. Sible facf0d1e27 Write getLiteralArgs with foldr and without fromMaybe or monads 2020-04-05 21:59:27 -04:00
Joseph C. Sible cd38afce26 Make it slightly lazier still (and more clear) 2020-04-05 21:46:08 -04:00
Joseph C. Sible 5084ba8d7e Make skipRepeating lazier and faster 2020-04-05 21:39:14 -04:00
Joseph C. Sible ed331b816b Simplify warnRedundant 2020-04-05 20:32:39 -04:00
Joseph C. Sible cfa2a663af Simplify checkSetAssignment 2020-04-05 20:30:37 -04:00
Joseph C. Sible df4928f4e3 Use MultiWayIf instead of case-matching on () 2020-04-05 20:30:37 -04:00
Joseph C. Sible 9747b1d5c3 Simplify checkArg 2020-04-05 20:10:56 -04:00
Joseph C. Sible fa841cb270 Prefer pattern matching in undirected 2020-04-05 20:08:02 -04:00
Joseph C. Sible e8501151dd Use a guard instead of unless 2020-04-05 20:04:54 -04:00
Joseph C. Sible 9027a9239f Use pattern matching instead of snd 2020-04-05 20:03:17 -04:00
Joseph C. Sible 773e98868d Use foldr in checkFindNameGlob 2020-04-05 19:53:40 -04:00
Joseph C. Sible d45ab327b0 Only perform the comparisons once 2020-04-05 19:45:28 -04:00
Joseph C. Sible 0f9b0f18a4 Remove unnecessary cases from wordToPseudoGlob 2020-04-05 19:30:21 -04:00
Joseph C. Sible 322842b57e Remove unnecessary monadicity from wordToPseudoGlob 2020-04-05 19:29:40 -04:00
Joseph C. Sible b6cff5ea0e Simplify getAssociativeArrays 2020-04-05 19:06:30 -04:00
Joseph C. Sible 8f105074fe Simplify getCommandNameAndToken 2020-04-05 19:01:56 -04:00
Joseph C. Sible d22e0aa4a7 Simplify process
Note to self: This is a lot like foldr or traverse, and would be trivial to
implement as such if it didn't need to peek ahead when takesArg is true. I
wonder if there's a clean way to implement it in terms of one of them anyway.
2020-04-05 16:45:45 -04:00
Joseph C. Sible fb55072302 Implement supportsArrays with pattern-matching 2020-04-05 16:30:59 -04:00
Joseph C. Sible 0cc5ed4563 Don't bother with asks if you're just immediately binding the result anyway 2020-04-05 16:25:43 -04:00
Joseph C. Sible ca41440a67 Simplify getSpecial 2020-04-05 16:21:07 -04:00
Joseph C. Sible 1cf0aa25e9 Simplify dropPrefix 2020-04-05 16:19:18 -04:00
Joseph C. Sible 4604066c37 Use head instead of (!! 0) 2020-04-05 16:16:12 -04:00
Joseph C. Sible 2ebf522a52 Simplify isArrayFlag 2020-04-05 16:13:55 -04:00
Joseph C. Sible e4eb2d157f Remove an unnecessary operator section 2020-04-05 16:13:55 -04:00
Joseph C. Sible f109f9ab92 Remove unnecessary as-patterns 2020-04-05 16:13:55 -04:00
Joseph C. Sible 67e091674e Remove unnecessary maybeToList
The functions we use here are polymorphic enough to work in the [] monad,
so there's no point to use them in the Maybe monad and then convert.
2020-04-05 16:13:54 -04:00
Joseph C. Sible f833ee3d5a Use a list comprehension instead of a concatMap with extra lists 2020-04-05 15:54:12 -04:00
Joseph C. Sible f55d8c45e5 Simplify causesSubshell 2020-04-05 15:54:12 -04:00
Joseph C. Sible 14ee462ccd Use execState instead of reimplementing it 2020-04-05 15:50:42 -04:00
Joseph C. Sible b3c04ce3d0 Implement findFirst in terms of foldr 2020-04-05 15:50:42 -04:00
Joseph C. Sible b0dbc79f69 Remove unnecessary Maybe from isQuoteFreeElement 2020-04-05 15:07:36 -04:00
Joseph C. Sible 2a8170ba05 Use force instead of reimplementing it 2020-04-05 15:01:57 -04:00
Vidar Holen 01f4423465 Disable SC2257 about > $((i=42)) for Dash 2020-04-05 11:38:22 -07:00
Joseph C. Sible d2fa88dd91 Simplify nameExpansion 2020-04-05 14:04:23 -04:00
Vidar Holen bd717c9d1b Don't warn about [ 0 -ne $FOO ] || [ 0 -ne $BAR ] (fixes #1891) 2020-04-01 22:09:00 -07:00
Vidar Holen da0931740f
Merge pull request #1876 from fork-graveyard/master
recognize `: ${parameter=word}` as assignment
2020-04-01 18:52:53 -07:00
Vidar Holen c60323fb25
Merge pull request #1873 from josephcsible/checkwhilereadpitfalls
Simplify checkWhileReadPitfalls
2020-03-31 19:10:53 -07:00
Vidar Holen db11e2f663
Merge pull request #1872 from josephcsible/checkforinquoted
Simplify checkForInQuoted
2020-03-31 19:10:25 -07:00
Joseph C. Sible 8cf037fe5e Fix #1892: Use pattern synonyms to clean up AST 2020-03-28 18:38:07 -04:00
Vidar Holen 7963eeab9d Include shebang in AST traversal (fixes #1858) 2020-03-16 21:36:41 -07:00
girst 7a5e261d03 recognize `: ${parameter=word}` as assignment 2020-03-16 23:04:54 +01:00
Joseph C. Sible 9d5363377e Simplify checkWhileReadPitfalls
* Clean up usage of not
* Use a case match instead of sequence_ and a do block
2020-03-16 00:14:22 -04:00
Joseph C. Sible 86d470c74f Simplify checkForInQuoted
* Avoid some unnecessary fmaps
* Reuse an identical pattern-match for two guards
* Apply De Morgan's law
* Use forM_ to avoid an unnecessary where
2020-03-15 16:05:55 -04:00
Vidar Holen a57f6d2886 Improve detection of for loops with single values 2020-03-15 11:30:56 -07:00
Vidar Holen d28c8f883f
Merge pull request #1865 from josephcsible/patch-1
Use headOrDefault instead of fromMaybe and listToMaybe
2020-03-14 21:21:13 -07:00
Vidar Holen c43b19f897 Make SC2095 (ssh in while read loops) more robust and suggest fixes 2020-03-14 21:15:47 -07:00
Joseph C. Sible 45a67e7c64
Use headOrDefault instead of fromMaybe and listToMaybe 2020-03-10 13:27:52 -04:00
Austin English 741d499b3d src/ShellCheck/Analytics.hs: suggest using a shell directive for SC2148 2020-03-07 19:23:35 -06:00
Vidar Holen 7b998239af SC2257: Warn when changing arithmetic variables in redirections 2020-02-17 18:16:57 -08:00
Vidar Holen 4c9210af79 Inspect 'alias' commands for referenced variables (Fixes #1832) 2020-02-17 14:20:21 -08:00
Vidar Holen a75219e525 Remove unused instance Ord Replacement (fixes #1829) 2020-02-17 12:44:38 -08:00
Vidar Holen 99d6df8a08 Bump SC1102/SC1105 about ambiguous `$((` to Error (fixes #1836) 2020-02-17 12:27:24 -08:00
Vidar Holen 106f321cf0 Parse keywords with case sensitivity (fixes #1809) 2020-02-17 11:13:29 -08:00
Joseph C. Sible eecd003e2d Optimize patterns in checkFindNameGlob
1. Instead of pattern-matching the same list multiple times, do it only
   once and then pass the pieces separately.
2. Don't reconstruct an object equivalent to one we just deconstructed.
2020-02-11 01:04:49 -05:00
Joseph C. Sible 440d0038aa Remove a partial pattern match equivalent to fromJust from checkFindNameGlob 2020-02-11 01:03:10 -05:00
Vidar Holen c2d67c15f8
Merge pull request #1802 from szydell/master
SC2016, repair false error for M language parser
2020-02-10 18:25:28 -08:00
Vidar Holen 6043deb8f2
Merge pull request #1824 from josephcsible/patch-1
Simplify literalEquals
2020-02-10 18:20:05 -08:00
Vidar Holen d0beac6d0b
Merge pull request #1826 from josephcsible/nofromjust
Use the Identity monad to avoid unnecessary uses of fromJust
2020-02-10 18:05:36 -08:00
Vidar Holen b88b253cad
Merge pull request #1827 from josephcsible/nofromjust2
Remove more unnecessary uses of fromJust
2020-02-10 18:01:38 -08:00
Joseph C. Sible 85c49a8af9 Simplify mockedSystemInterface 2020-02-09 23:50:48 -05:00
Joseph C. Sible 42abcb7ae2 Simplify shellFromFilename 2020-02-09 23:18:09 -05:00
Joseph C. Sible d5c5128115 Use isJust instead of reimplementing it 2020-02-09 23:18:09 -05:00
Joseph C. Sible 6d06103cab Remove unnecessary uses of head 2020-02-09 23:18:09 -05:00
Joseph C. Sible c95914f9b3 Simplify determineShell 2020-02-09 23:18:09 -05:00
Joseph C. Sible ea24e25efd Use Map.member instead of isJust and Map.lookup 2020-02-09 23:18:09 -05:00
Joseph C. Sible 8f0448133c Use isNothing instead of reimplementing it 2020-02-09 23:18:08 -05:00
Joseph C. Sible 7fc9496320 Use forM_ instead of reimplementing it 2020-02-09 23:18:08 -05:00
Joseph C. Sible 962fad038c Avoid a zip that breaks fusion 2020-02-09 23:18:08 -05:00
Joseph C. Sible a223a7a5a5 Remove unnecessary fromMaybes 2020-02-09 23:18:08 -05:00
Joseph C. Sible 8e9290badb Do toLower earlier 2020-02-09 23:17:53 -05:00
Joseph C. Sible 292b0840d9 Simplify a double negative 2020-02-09 23:17:53 -05:00
Joseph C. Sible 43c24cf79c Use Map.! instead of reimplementing it 2020-02-09 23:17:53 -05:00
Joseph C. Sible 21ad4196db Simplify findFunction 2020-02-09 23:17:53 -05:00
Joseph C. Sible 172aa7c4fc Avoid unnecessary use of when and unless 2020-02-09 23:17:53 -05:00
Joseph C. Sible c290eace54 Inline an uncurry 2020-02-09 23:17:53 -05:00
Joseph C. Sible a6efd02807 Simplify <> for SpaceStatus 2020-02-09 23:17:53 -05:00
Joseph C. Sible 057cc714b3 Simplify matchToken 2020-02-09 23:17:52 -05:00
Joseph C. Sible 0e00249eae Use void instead of do and return () 2020-02-09 23:17:52 -05:00
Joseph C. Sible 0ca50159ec Use head instead of reimplementing it
Normally I wouldn't use head, but this code is partial anyway.
2020-02-09 23:17:52 -05:00
Joseph C. Sible 7e6a556ef1 Get rid of potentially
This already exists as sequence_.
2020-02-09 23:17:52 -05:00
Joseph C. Sible 4bfe6496d9 Simplify check and checkTranslatedStringVariable
Avoid the "potentially" and "Maybe" business, and just use regular guards.
2020-02-09 23:17:52 -05:00
Joseph C. Sible ffbbfcfe25 Use mapM_ and sequence_ instead of reimplementing them 2020-02-09 23:17:52 -05:00
Joseph C. Sible cc424bac11 Use find instead of take 1 and filter 2020-02-09 23:17:52 -05:00
Joseph C. Sible cb01cbf7eb Use mapM instead of implementing a slower version of it 2020-02-09 23:17:52 -05:00
Joseph C. Sible 1e32139f66 Replace mapMaybe and concatMap with list comprehensions 2020-02-09 23:17:52 -05:00
Joseph C. Sible 4d92a2e15c Add getLiteralStringDef and simplify with it 2020-02-09 21:36:38 -05:00
Joseph C. Sible f8648e5465 Switch getLiteralStringExt to Identity where it can never be Nothing 2020-02-09 21:26:42 -05:00
Joseph C. Sible 4fd8de058b Remove more unnecessary uses of fromJust 2020-02-08 23:48:36 -05:00
Joseph C. Sible aaffe38198 Use the Identity monad to avoid unnecessary uses of fromJust 2020-02-08 23:20:54 -05:00
Joseph C. Sible ef51ed3950
Simplify literalEquals 2020-02-08 14:09:17 -05:00
Vidar Holen 9d604ae732
Merge pull request #1822 from yetamrra/arrayindex
SC2191: Tighten index checks
2020-02-08 10:48:07 -08:00
Vidar Holen 1ca0b72329
Merge pull request #1816 from josephcsible/cleanups
Various cleanups and refactorings
2020-02-08 10:38:27 -08:00
Benjamin Gordon 474b23d6e7 SC2191: Tighten index checks
When adding a value containing an equals sign to an indexed array, the
left side is treated as an index if it looks like [N]=val and N is
numeric.  SC2191 currently warns about anything that looks like key=val
even though non-numeric values of key will never be treated as an index.
This causes spurious warnings for the common pattern of building up
program arguments in an array, such as:
  args=(
    --dry-run
    --in="${my_var}"
    --out=/some/path
    -f
  )
  /bin/program "${args[@]}"

Since only numeric expressions can be a valid index for an indexed
array, only emit SC2191 if the left side of a literal string containing
an equals looks numeric.  Other more complicated constructs should still
warn because shellcheck doesn't know if they may evaluate to a numeric
result.  Associative arrays still warn because a non-numeric left side
is a valid subscript.
2020-02-05 16:50:32 -07:00
Joseph C. Sible e820a5642b Adjust a pattern to get rid of a fromJust 2020-02-02 00:40:22 -05:00
Joseph C. Sible 392b57b8e8 Use maybe instead of isJust and fromJust 2020-02-02 00:27:05 -05:00
Joseph C. Sible 6595e14d25 Adjust a pattern to avoid tail 2020-02-02 00:24:24 -05:00
Joseph C. Sible 115ef29079 Use pattern matching instead of head 2020-02-02 00:16:59 -05:00
Joseph C. Sible 76b798394f Use case matching instead of null
Using null followed by a head, tail, or a partial pattern match is
an anti-pattern. Use case matching instead.
2020-02-01 23:07:16 -05:00
Joseph C. Sible 8a005526cc Use drop instead of splitAt since we only use the second half 2020-02-01 23:04:04 -05:00
Joseph C. Sible c29b6afa56 Use null instead of comparing with empty lists 2020-02-01 23:04:04 -05:00
Joseph C. Sible e6e89d68fd Use list comprehensions instead of clunky combinations of map and filter 2020-02-01 23:04:04 -05:00
Joseph C. Sible f25b8bd03a Use gets instead of fmapping the result of get 2020-02-01 22:50:20 -05:00
Joseph C. Sible d7278b95f2 Remove unnecessary "map snd" 2020-02-01 22:50:19 -05:00
Joseph C. Sible 5487b3f229 Use sortOn instead of sortBy and comparing 2020-02-01 22:50:18 -05:00
Joseph C. Sible 28978a8b65 Use maybe instead of fromMaybe and fmap 2020-02-01 22:50:17 -05:00
Joseph C. Sible f5c6771016 Use find instead of listToMaybe and filter 2020-02-01 22:50:16 -05:00
Joseph C. Sible 0f48bb78a5 Remove incorrect otherwise
You're supposed to use otherwise where you need a Boolean, not a pattern
match. This is misleadingly shadowing the real otherwise. Use _ instead.
2020-02-01 22:50:14 -05:00
Joseph C. Sible 93be86f988 Use "drop 1" instead of clumsily rewriting it 2020-02-01 22:50:14 -05:00
Joseph C. Sible 3449e6be21 Get rid of our getOpt, as it already exists as lookup 2020-02-01 22:50:13 -05:00
Joseph C. Sible 2e52c2b56a Use notElem instead of not on the result of elem 2020-02-01 22:50:11 -05:00
Vidar Holen 1696296c0a Make SC2141 trigger more broadly 2020-02-01 16:51:40 -08:00
Peter Gromov a82e606e8d Don't trigger SC2154 (unassigned var) in `-n`/`-z` expressions #1583 2020-01-31 14:49:25 +01:00
Marcin Szydelski 93486ed6ac SC2016: disable for mumps -run %XCMD and LOOP%XCMD 2020-01-21 12:43:27 +01:00
Gandalf- fdd02c94c0 Issue 1759 mapfile and process substition
https://github.com/koalaman/shellcheck/issues/1759

When a simple process substition is used, this tripped up
the getMapfileArray function by making the last argument
not a variable
2019-12-22 23:19:03 -08:00
Vidar Holen cbcca528ae Merge branch 'iss1724-builtin-support' of https://github.com/jabberabbe/shellcheck into jabberabbe-iss1724-builtin-support 2019-12-21 18:13:07 -08:00
Vidar Holen 83187dafd7 Added a unit test for parsing shell keyword case branches 2019-12-21 17:59:09 -08:00
Gandalf- 3f296a08c1 Issue 1731 Literals in case patterns
https://github.com/koalaman/shellcheck/issues/1731

Any literal except esac is valid pattern in a case statement
2019-12-18 20:23:48 -08:00
Vidar Holen 0f15fa49ba Make SC2230 optional 2019-12-07 16:11:49 -08:00
Vidar Holen 9f578f41a1 Explicitly add 'mappend' for old GHC versions 2019-11-16 11:16:15 -08:00
Vidar Holen 989ac32625
Merge pull request #1734 from gabrielelana/braced-regular-for
Parse regular `for` with body in curly braces
2019-11-15 20:59:51 -08:00
Vidar Holen 2bbfd0570d
Merge pull request #1735 from gabrielelana/quoted-heredoc
Support for heredoc quoted token like `'"FOO"`
2019-11-15 20:27:10 -08:00
Vidar Holen f44624a9c0 Hide <> from Writer to not conflict with Semigroup 2019-11-14 20:02:25 -08:00
Vidar Holen c75bbcbd60 Include missing Semigroup import 2019-11-13 22:10:27 -08:00
Vidar Holen 4a63a3a8bd For SC2256, make sure the complete string is a variable name 2019-11-13 21:48:01 -08:00
Benjamin Gordon 2341a4c683 SC2256: Check for translated strings matching known variables
SC2247 already warns about translated strings that look like $"(foo)" or
$"{foo}".  Since typical use of translated strings is to translate whole
messages, a string like $"foo" is likely to be a similar mistake if foo
is the name of an existing variable.  Conversely, a string like
$"foo bar" is potentially meant to be a message id even if foo is a
known variable.

Add a warning for the $"foo" case, but make it separate from the
existing warning so that projects that reuse variable names as their
message ids can separately disable the new warning.
2019-11-13 16:41:16 -07:00
Vidar Holen 93eca1cb8e Only trigger SC1014 when command is a complete word (fixes #1737) 2019-11-03 13:26:23 -08:00
Vidar Holen e701cf6fad Warn about [ x -ot y ] in POSIX mode 2019-11-03 13:25:35 -08:00
Vidar Holen 5962b01816 Correctly handle empty variables for SC2086 (fixes #1722) 2019-11-03 12:46:25 -08:00
Tito Sacchi 84ca7711c4 Make command-specific checks act on `builtin ...`
Now if shellchecks encounters a command like `builtin cmd ...`
it applies the same check that would be applied to `cmd ...`.
2019-11-01 14:28:00 +01:00
Tito Sacchi 0e0de94045 Fix issue #1724
(bash: missing support for 'builtin' keyword)
Now shellcheck looks for the arguments to 'builtin' to determine
read/written variables. A change in the parser makes sure that
assignments are parsed correctly in commands that start with 'builtin'.
2019-11-01 13:49:17 +01:00
gabriele.lana 699aac589a Support for heredoc quoted token like `'"FOO"`
Fixes #1650
2019-10-26 17:36:32 +02:00
gabriele.lana 30c75340e6 Parse regular `for` with body in curly braces
Fixes #1694
2019-10-26 15:41:46 +02:00
Vidar Holen 4dfd7eb1cf Use single quotes for the format string example in SC2059 2019-10-24 10:33:17 -07:00
Vidar Holen 60f75e5b8a Warn about unexpected characters after ]/]] (fixes #1680) 2019-10-13 20:26:40 -07:00
Vidar Holen f042b0ebd1 Merge branch 'iboss-ptk-read-t-0' 2019-10-12 20:55:32 -07:00
Vidar Holen 764fdcb260 Move failing test to correct check 2019-10-12 20:50:55 -07:00
Vidar Holen 7473d4a743 Make `read -t 0` test more forgiving towards other flags 2019-10-12 20:45:36 -07:00
Vidar Holen 91abd979f2 Merge branch 'read-t-0' of https://github.com/iboss-ptk/shellcheck into iboss-ptk-read-t-0 2019-10-12 20:23:13 -07:00
Vidar Holen afea62de4e Suggest using `$((..))` in `[ 2*3 -eq 6 ]` (fixes #1641) 2019-10-12 19:55:20 -07:00
Supanat Pothivarakorn 7fb399528c Allow `read -t 0` to not require -r flag
since it has specific purpose for checking only
2019-10-02 22:34:43 +07:00
Vidar Holen de9ab4e6ef Fix glob range duplicate warning in [!!] (fixes #1706) 2019-09-28 14:03:11 -07:00
Vidar Holen e01c470598 Suggest quoting case patterns, as for SC2053 (fixes #1682) 2019-09-08 20:08:43 -07:00
Vidar Holen c175971bf0 Make `-f diff` stop saying it found more issues when it didn't. 2019-07-28 20:50:50 -07:00
Vidar Holen 38bb156a1c Warn about $_ in POSIX sh (fixes #1647) 2019-07-21 21:22:16 -07:00
Vidar Holen 023ae5dfda Don't warn about printf '%()T' without corresponding argument 2019-07-20 15:10:41 -07:00
Vidar Holen 788cf17076 Fix bad advice for SC2251 (fixes #1588) 2019-07-04 19:10:14 -07:00
Vidar Holen 78b8e76066 Also mention globbing in SC2206 (fixes #1626) 2019-07-04 17:43:18 -07:00
Vidar Holen 914974bd4f Don't consider `.*` a glob-like regex (fixes #1214) 2019-07-04 17:41:23 -07:00
Vidar Holen c0d3a98fcd Add warning for chmod -r (fixes #1321) 2019-07-04 16:54:42 -07:00
Vidar Holen 380221a02c Recognize `read -ra foo` as arrays (fixes #1636) 2019-07-03 20:40:41 -07:00
Vidar Holen ba2c20a08a Improve message for SC1067 2019-07-03 20:02:14 -07:00
Vidar Holen be1f1c1ab7 Don't count 'readonly x' as a reference to x (fixes #1573) 2019-07-02 20:58:08 -07:00
Vidar Holen bee4303c32 Add an empty Custom.hs to simplify site-specific patching 2019-07-02 20:07:05 -07:00
Vidar Holen ef764b60ca Fix botched variable usage 2019-07-01 23:47:13 -07:00
Vidar Holen 3e3e4fd0cd Avoid defining flags for non-literal parameters 2019-07-01 23:22:09 -07:00
Vidar Holen 561075ea79 Merge branch 'shflags' of https://github.com/yetamrra/shellcheck into yetamrra-shflags 2019-07-01 20:00:28 -07:00
Vidar Holen 9702f1ff9c Handle diffs for files without trailing linefeed 2019-06-30 20:19:10 -07:00
Vidar Holen 544047c5af Warn about ending double quotes just to make $ literal 2019-06-30 18:43:42 -07:00
Vidar Holen 321afa427e Remove unused parse-time AST warnings 2019-06-30 17:38:17 -07:00
Vidar Holen c381c5746f Remove unnecessary lookahead in readDollarLonely 2019-06-30 17:28:15 -07:00
Vidar Holen eeb7ea01c9 Allow SC2103 to be silenced (fixes #1591) 2019-06-30 16:36:45 -07:00
Vidar Holen 3116ed3ae5 Filter warnings by annotations in unit tests 2019-06-30 16:36:03 -07:00
Benjamin Gordon f6ba500d6b Add support for basic shflags semantics
The shflags command-line flags library creates variables at runtime
with a few well-defined functions.  This causes shellcheck to spit out
lots of warnings about unassigned variables, as well as miss warnings
about unused flag variables.

We can address this with two parts:

1. Pretend that the shflags global variables are predefined like other
   shell variables so that shellcheck doesn't expect users to set them.
2. Treat DEFINE_string, DEFINE_int, etc. as new commands that create
   variables, similar to the existing read, local, mapfile, etc.

Part 1 can theoretically be addresssed without this by following sourced
files, but that doesn't help if people are otherwise not following
external sources.

The new behavior is on by default, similar to automatic bats test
behavior.

Addresses #1597
2019-06-25 12:14:54 -06:00
Vidar Holen c5aa171a5f Use mappend over <> for compatibility 2019-06-24 09:02:35 -07:00
Vidar Holen b1aeee564c Add a Diff output format 2019-06-23 20:02:01 -07:00
Vidar Holen e099625e7d Remove unused ioref 2019-06-23 15:50:48 -07:00
Vidar Holen 5242e384a1 Fix error spans for shebang warnings (fixes #1620) 2019-06-23 13:49:08 -07:00
Vidar Holen 7e77bfae49 Improve message for SC2055 2019-06-23 13:48:43 -07:00
Vidar Holen 9059024de6
Merge pull request #1592 from hugopeixoto/fix/SC2016-false-positive
SC2016: Don't trigger when using empty backticks
2019-06-19 19:55:34 -07:00
Vidar Holen 61d2112e71 Add missing JSON1.hs 2019-06-02 13:00:38 -07:00
Vidar Holen 9f0ef5983a Optionally check for unassigned uppercase variables 2019-06-02 10:29:04 -07:00
Vidar Holen 1297ef46d7 Add JSON1 as a separate format, wrap result in an object 2019-06-02 10:28:37 -07:00
Vidar Holen f4be53eb19 Warn about [ -v var ] for POSIX sh 2019-06-02 10:28:20 -07:00
Vidar Holen 3e7c2bfec0 Warn about [ $a != x ] || [ $a != y ] 2019-06-02 09:26:54 -07:00
Hugo Peixoto 07ffcb626e SC2016: Don't trigger when using empty backticks
When using '``' or '```', it should not suggest using double quotes.
2019-05-27 11:03:24 +01:00
Vidar Holen 95b1185882 Inform about ineffectual ! on commands (fixes #1531) 2019-05-22 17:14:28 -07:00
Vidar Holen 8efbecd64a Don't suggest removing braces from $((${x+1})) (fixes #1533) 2019-05-19 15:29:47 -07:00
Vidar Holen 52a9d90e1a
Merge pull request #1580 from virgilwashere/copyright
Update Copyright to year 2019; README linting
2019-05-19 12:03:15 -07:00
Vidar Holen 861b63aa77 Specify 'variable' in require-braces 2019-05-14 18:48:41 -07:00
Benjamin Gordon 64c9c83cc8 SC2250: New optional check for braces around variable references
Always using braces makes it harder to accidentally change a variable by
pasting other text next to it, but the warning is off by default because
it's definitely a style preference.  Omit special and positional
variables from the check because appending additional characters to them
already doesn't change parsing.
2019-05-14 11:01:38 -06:00
Benjamin Gordon aa3b709b5d Track whether braces were present in T_DollarBraced
References of the form $var and ${var} both map to the same structure in
the AST, which prevents any later analysis functions from distinguishing
them.  In preparation for adding checks that need this info, add a Bool
to T_DollarBraced that tracks whether the braces were seen at parsing
time and update all references so that this change is a no-op.
2019-05-14 11:01:38 -06:00
Benjamin Gordon 0358090b3c Refactor definition of special variables.
This ensures that the parser and other places that refer to special
variables can use the same list.
2019-05-14 08:57:56 -06:00
Virgil ea05271fa3 📝 Update Copyright to year 2019 and Markdown linting
- [x] 📝 Update Copyright to year 2019

- [x] 📝 MD009/no-trailing-spaces: Trailing spaces [Expected: 0 or 2; Actual: 1]
- [x] 📝 MD034/no-bare-urls: Bare URL used

- [ ] 📝 ~MD004/ul-style: Unordered list style [Expected: dash; Actual: asterisk]~
- [ ] ~add missing TOC entries~
2019-05-14 20:12:34 +10:00
Vidar Holen 50116e8aee Don't suggest [[..]] for sh in SC2081 (fixes #1562) 2019-05-13 20:45:53 -07:00
Benjamin Gordon 50af8aba29 Add json1 format that ignores tabs
The new json1 format works just like json except that it treats tabs as
single characters instead of 8-character tabstops.

The main use case is to allow editors to pass -fjson1 so that they can
consume the json output in a character-oriented way without breaking
backwards compatibility.

Also addresses #1048.
2019-05-13 10:55:16 -06:00
Vidar Holen 5fb1da6814 Replace verbose checks with optional checks 2019-05-12 19:14:04 -07:00
Vidar Holen 58205a3573 Emit resolved rather than apparent filename for 'source' (fixes #1579) 2019-05-12 15:55:37 -07:00
Vidar Holen d9e419d60f Add support for source-path directives (fixes #1577) 2019-05-09 19:54:41 -07:00
Vidar Holen a3cd5979a2 Update message for SC2171 2019-05-04 12:54:59 -07:00
Vidar Holen 37b24cc129 Don't warn about "a"b"c" in =~ regex (fixes #1565) 2019-05-04 12:18:45 -07:00
Vidar Holen e2e65e1350 Warn about arithmetic base conversation in sh (fixes #1547) 2019-04-29 18:02:44 -07:00
Vidar Holen 9470b9dc31 Don't mention arrays in SC2089 in sh/dash (fixes #1014) 2019-04-27 16:22:01 -07:00
Vidar Holen bf1003eae3 Auto-disable SC2119 when disabling SC2120 (fixes #703) 2019-04-27 15:20:07 -07:00
Vidar Holen c6c12f52bd Expand root paths into source paths 2019-04-24 18:51:24 -07:00
Pontus Andersson af46758ff1 Add option to look for sources in alternate root paths
Add a new optional flag "-r|--root ROOTPATHS", where ROOTPATHS is a
colon separated list of paths, that will look for external sources in
alternate roots.

This is particular useful when the run-time environment does not fully
match the development environment. The #shellcheck source=file directive
is useful, but has its limitations in certain scenarios. Also, in many
cases the directive could be removed from scripts when the root flag is
used.

Script example.bash:
  #!/bin/bash
  source /etc/foo/config

Example usage where etc/foo/config exists in skel/foo:
  # shellcheck -x -r skel/foo:skel/core example.bash
2019-04-22 17:54:42 +02:00
Vidar Holen b824294961 Limit SC2032 to likely command args (fixes #1537) 2019-04-14 20:58:01 -07:00
Vidar Holen 5b7354918f SC2249: When verbose, warn about missing default case (fixes #997) 2019-04-14 16:58:17 -07:00
Vidar Holen b76c0a8221 SC2248: Warn about unquoted variables without special chars 2019-04-13 20:19:13 -07:00
Vidar Holen c860b74505 Set SC2243/SC2244 level to "verbose" 2019-04-13 13:40:18 -07:00