Commit Graph

248 Commits

Author SHA1 Message Date
Vidar Holen bd3299edd3 Treat 'exec $1' like '$1' for the purpose of quoting (fixes #2068) 2020-12-17 20:31:45 -08:00
Vidar Holen cc3884cf9f Support env -S/--split-string in shebangs (fixes #2105) 2020-12-12 20:24:32 -08:00
Vidar Holen 6ba1af0898 Warn when a variable is assigned to itself 2020-12-11 20:28:36 -08:00
Vidar Holen 65044c2568 SC2095: Also warn if the command is backgrounded 2020-11-29 13:01:23 -08:00
Keith Smiley 619662adb6 Add readonly to SC2155
This adds a warning for readonly masking the return value of function.
This is mentioned in the wiki
https://github.com/koalaman/shellcheck/wiki/SC2155#problematic-code-in-the-case-of-readonly
but didn't actually produce a warning.

Fixes https://github.com/koalaman/shellcheck/issues/1336
2020-10-23 17:29:04 -07:00
Vidar Holen 28d3279ba6 Optional style warning about [ x$var = xval ] 2020-10-19 20:04:58 -07:00
Vidar Holen 256457c47a Use getopts parser to find 'read' arrays (fixes #2073) 2020-10-18 22:57:16 -07:00
Vidar Holen f100c2939e Rewrite getopts style option parser 2020-10-18 21:34:58 -07:00
Vidar Holen 8d99926554 Recognize `local -x` similarly to `export` (fixes #2069) 2020-10-18 15:15:31 -07:00
Vidar Holen 218deb6d01 Update SC2091/SC2092 message and ignore in quotes. 2020-09-08 19:30:13 -07:00
Vidar Holen 43191fa71d Suppress SC2035 for echo * and printf * (fixes #2036) 2020-09-01 14:19:28 -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 34885142e7 Handle tilde expansion in pattern matching (fixes #1769) 2020-07-27 18:34:42 -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 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 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 73cc11fd0a
Merge pull request #1901 from josephcsible/bracedstring
Mostly get rid of bracedString
2020-04-12 15:14:50 -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 8a7497c4f0 Simplify checkVariableBraces 2020-04-11 19:23:13 -04:00
Joseph C. Sible 322842b57e Remove unnecessary monadicity from wordToPseudoGlob 2020-04-05 19:29:40 -04:00
Vidar Holen 01f4423465 Disable SC2257 about > $((i=42)) for Dash 2020-04-05 11:38:22 -07:00
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
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 c43b19f897 Make SC2095 (ssh in while read loops) more robust and suggest fixes 2020-03-14 21:15:47 -07:00
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 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 6d06103cab Remove unnecessary uses of head 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 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 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 c29b6afa56 Use null instead of comparing with empty lists 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 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 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 9f578f41a1 Explicitly add 'mappend' for old GHC versions 2019-11-16 11:16:15 -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 $"foo" case, but make it separate from the
existing warning so that projects that reuse variable names as their
message ids can separately disable the new warning.
2019-11-13 16:41:16 -07:00
Vidar Holen 5962b01816 Correctly handle empty variables for SC2086 (fixes #1722) 2019-11-03 12:46:25 -08:00
Tito Sacchi 0e0de94045 Fix issue #1724
(bash: missing support for 'builtin' keyword)
Now shellcheck looks for the arguments to 'builtin' to determine
read/written variables. A change in the parser makes sure that
assignments are parsed correctly in commands that start with 'builtin'.
2019-11-01 13:49:17 +01:00
Vidar Holen f042b0ebd1 Merge branch 'iboss-ptk-read-t-0' 2019-10-12 20:55:32 -07:00
Vidar Holen 764fdcb260 Move failing test to correct check 2019-10-12 20:50:55 -07:00
Vidar Holen 7473d4a743 Make `read -t 0` test more forgiving towards other flags 2019-10-12 20:45:36 -07:00
Vidar Holen 91abd979f2 Merge branch 'read-t-0' of https://github.com/iboss-ptk/shellcheck into iboss-ptk-read-t-0 2019-10-12 20:23:13 -07:00
Vidar Holen afea62de4e Suggest using `$((..))` in `[ 2*3 -eq 6 ]` (fixes #1641) 2019-10-12 19:55:20 -07:00