Mercurial > hg > mercurial-crew-with-dirclash
view tests/test-diff-ignore-whitespace @ 5378:8a2915f57dfc
convert: add a mode where mercurial_sink skips empty revisions.
The getchanges function of some converter_source classes can return
some false positives. I.e. they sometimes claim that a file "foo"
was changed in some revision, even though its contents are still the
same.
convert_svn is particularly bad, but I think this can also happen with
convert_cvs and, at least in theory, with mercurial_source.
For regular conversions this is not really a problem - as long as
getfile returns the right contents, we'll get a converted revision
with the right contents. But when we use --filemap, this could lead
to superfluous revisions being converted.
Instead of fixing every converter_source, I decided to change
mercurial_sink to work around this problem.
When --filemap is used, we're interested only in revisions that touch
some specific files. If a revision doesn't change any of these files,
then we're not interested in it (at least for revisions with a single
parent; merges are special).
For mercurial_sink, we abuse this property and rollback a commit if
the manifest text hasn't changed. This avoids duplicating the logic
from localrepo.filecommit to detect unchanged files.
author | Alexis S. L. Carvalho <alexis@cecm.usp.br> |
---|---|
date | Thu, 04 Oct 2007 23:21:37 -0300 |
parents | 372d93f03d3a |
children |
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#!/bin/sh # GNU diff is the reference for all of these results. hgdiff() { echo hg diff $@ hg diff --nodates "$@" } test_added_blank_lines() { printf '\nhello world\n\ngoodbye world\n\n' >foo echo '>>> two diffs showing three added lines <<<' hgdiff hgdiff -b echo '>>> no diffs <<<' hgdiff -B hgdiff -Bb } test_added_horizontal_space_first_on_a_line() { printf '\t hello world\ngoodbye world\n' >foo echo '>>> four diffs showing added space first on the first line <<<' hgdiff hgdiff -b hgdiff -B hgdiff -Bb } test_added_horizontal_space_last_on_a_line() { printf 'hello world\t \ngoodbye world\n' >foo echo '>>> two diffs showing space appended to the first line <<<' hgdiff hgdiff -B echo '>>> no diffs <<<' hgdiff -b hgdiff -Bb } test_added_horizontal_space_in_the_middle_of_a_word() { printf 'hello world\ngood bye world\n' >foo echo '>>> four diffs showing space inserted into "goodbye" <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb } test_increased_horizontal_whitespace_amount() { printf 'hello world\ngoodbye\t\t \tworld\n' >foo echo '>>> two diffs showing changed whitespace amount in the last line <<<' hgdiff hgdiff -B echo '>>> no diffs <<<' hgdiff -b hgdiff -Bb } test_added_blank_line_with_horizontal_whitespace() { printf 'hello world\n \t\ngoodbye world\n' >foo echo '>>> four diffs showing added blank line w/horizontal space <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb } test_added_blank_line_with_other_whitespace() { printf 'hello world\n \t\ngoodbye world \n' >foo echo '>>> three diffs showing added blank line w/other space <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb } test_whitespace_changes() { printf 'helloworld\ngoodbye\tworld \n' >foo echo '>>> four diffs showing changed whitespace <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb hgdiff -w } test_whitespace_changes_and_blank_lines() { printf 'helloworld\n\n\n\ngoodbye\tworld \n' >foo echo '>>> five diffs showing changed whitespace <<<' hgdiff hgdiff -B hgdiff -b hgdiff -Bb hgdiff -w hgdiff -wB } hg init printf 'hello world\ngoodbye world\n' >foo hg ci -Amfoo -ufoo -d '0 0' test_added_blank_lines test_added_horizontal_space_first_on_a_line test_added_horizontal_space_last_on_a_line test_added_horizontal_space_in_the_middle_of_a_word test_increased_horizontal_whitespace_amount test_added_blank_line_with_horizontal_whitespace test_added_blank_line_with_other_whitespace test_whitespace_changes test_whitespace_changes_and_blank_lines