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bidichk checks for dangerous unicode character sequences (https://github.com/golangci/golangci-lint/pull/2330) |
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README.md | ||
revgrep.go |
Overview
revgrep
is a CLI tool used to filter static analysis tools to only lines changed based on a commit reference.
Install
go get -u github.com/bradleyfalzon/revgrep/...
Usage
In the scenario below, a change was made causing a warning in go vet
on line 5, but go vet
will show all warnings.
Using revgrep
, you can show only warnings for lines of code that have been changed (in this case, hiding line 6).
[user@host dir (master)]$ go vet
main.go:5: missing argument for Sprintf("%s"): format reads arg 1, have only 0 args
main.go:6: missing argument for Sprintf("%s"): format reads arg 1, have only 0 args
[user@host dir (master)]$ go vet |& revgrep
main.go:5: missing argument for Sprintf("%s"): format reads arg 1, have only 0 args
|&
is shown above as many static analysis programs write to stderr
, not stdout
, |&
combines both stderr
and
stdout
. It could also be achieved with go vet 2>&1 | revgrep
.
revgrep
CLI tool will return an exit status of 1 if any issues match, else it will return 0. Consider using
${PIPESTATUS[0]}
for the exit status of the go vet
command in the above example.
Usage: revgrep [options] [from-rev] [to-rev]
from-rev filters issues to lines changed since (and including) this revision
to-rev filters issues to lines changed since (and including) this revision, requires <from-rev>
If no revisions are given, and there are unstaged changes or untracked files, only those changes are shown
If no revisions are given, and there are no unstaged changes or untracked files, only changes in HEAD~ are shown
If from-rev is given and to-rev is not, only changes between from-rev and HEAD are shown.
-d Show debug output
-regexp string
Regexp to match path, line number, optional column number, and message
Other Examples
Issues between branches:
[user@host dir (feature/branch)]$ go vet |& revgrep master
Issues since last push:
[user@host dir (master)]$ go vet |& revgrep origin/master