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Add extended-analysis directive to toggle DFA

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Vidar Holen
2024-02-03 15:45:23 -08:00
parent 1565091b1d
commit d80fdfa9e8
12 changed files with 128 additions and 22 deletions
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shellcheck.1.md
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@@ -56,6 +56,13 @@ not warn at all, as `ksh` supports decimals in arithmetic contexts.
options are cumulative, but all the codes can be specified at once,
comma-separated as a single argument.
**--extended-analysis=true/false**
: Enable/disable Dataflow Analysis to identify more issues (default true). If
ShellCheck uses too much CPU/RAM when checking scripts with several
thousand lines of code, extended analysis can be disabled with this flag
or a directive. This flag overrides directives and rc files.
**-f** *FORMAT*, **--format=***FORMAT*
: Specify the output format of shellcheck, which prints its results in the
@@ -249,6 +256,12 @@ Valid keys are:
: Enable an optional check by name, as listed with **--list-optional**.
Only file-wide `enable` directives are considered.
**extended-analysis**
: Set to true/false to enable/disable dataflow analysis. Specifying
`# shellcheck extended-analysis=false` in particularly large (2000+ line)
auto-generated scripts will reduce ShellCheck's resource usage at the
expense of certain checks. Extended analysis is enabled by default.
**external-sources**
: Set to `true` in `.shellcheckrc` to always allow ShellCheck to open
arbitrary files from 'source' statements (the way most tools do).