[PATCH 2 of 2] revsets: more informative syntax error message
Martin von Zweigbergk
martinvonz at google.com
Tue Apr 14 00:56:30 CDT 2015
On Mon, Apr 13, 2015 at 9:34 PM Ryan McElroy <rmcelroy at fb.com> wrote:
> # HG changeset patch
> # User Ryan McElroy <rmcelroy at fb.com>
> # Date 1428983585 25200
> # Mon Apr 13 20:53:05 2015 -0700
> # Node ID e2e2371e3b2e343224bf44b9571904eb8a88ee44
> # Parent e92f07c0e06691df67b06488c37b8b742b667809
> revsets: more informative syntax error message
>
> I came across a case where an internal command was using a revset that I
> didn't
> immediately pass in and it was difficult to debug what was going wrong
> with the
> revset. This prints out the revset and informs the user that the error is
> with
> a rebset so it should be more obvious what and where the error is.
>
> diff --git a/mercurial/revset.py b/mercurial/revset.py
> --- a/mercurial/revset.py
> +++ b/mercurial/revset.py
> @@ -241,7 +241,8 @@ def tokenize(program, lookup=None, symin
> yield ('symbol', sym, s)
> pos -= 1
> else:
> - raise error.ParseError(_("syntax error"), pos)
> + raise error.ParseError(_("syntax error in revset '%s'") %
> + program, pos)
>
Looks like an improvement to me, thanks. Pushing to the clowncopter.
> pos += 1
> yield ('end', None, pos)
>
> diff --git a/tests/test-revset.t b/tests/test-revset.t
> --- a/tests/test-revset.t
> +++ b/tests/test-revset.t
> @@ -1535,7 +1535,7 @@ test in problematic encoding
>
> test error message of bad revset
> $ hg log -r 'foo\\'
> - hg: parse error at 3: syntax error
> + hg: parse error at 3: syntax error in revset 'foo\\'
> [255]
>
> $ cd ..
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