comparison tests/test-hgignore.t @ 21815:a4b67bf1f0a5 stable

match: make glob '**/' match the empty string

Previously, a glob pattern of the form 'foo/**/bar' would match 'foo/a/bar' but
not 'foo/bar'. That was because the '**' in 'foo/**/bar' would be translated to
'.*', making the final regex pattern 'foo/.*/bar'. That pattern doesn't match
the string 'foo/bar'.

This is a bug because the '**/' glob matches the empty string in standard Unix
shells like bash and zsh.

Fix that by making the ending '/' optional if an empty string can be matched.

21761:b2dc026a9bd2

  A dir/b.o
  ? .hgignore
  ? a.c
  ? a.o
  ? syntax

21815:a4b67bf1f0a5

  A dir/b.o
  ? .hgignore
  ? a.c
  ? a.o
  ? syntax

Check recursive glob pattern matches no directories (dir/**/c.o matches dir/c.o)

  $ echo "syntax: glob" > .hgignore
  $ echo "dir/**/c.o" >> .hgignore
  $ touch dir/c.o
  $ mkdir dir/subdir
  $ touch dir/subdir/c.o
  $ hg status
  A dir/b.o
  ? .hgignore
  ? a.c
  ? a.o
  ? syntax