wix: tell ComponentSearch that it is finding a directory (not a file)
This is to fix an issue we've noticed where fresh installations start at
`C:\Program Files\Mercurial`, and then upgrades "walk up" the tree and end up in
`C:\Program Files` and finally `C:\` (where they stay).
ComponentSearch defaults to finding files, which I think means "it produces a
string like `C:\Program Files\Mercurial`", whereas with the type being
explicitly a directory, it would return `C:\Program Files\Mercurial\` (note the
final trailing backslash). Presumably, a latter step then tries to turn that
file name into a proper directory, by removing everything after the last `\`.
This could likely also be fixed by actually searching for the component for
hg.exe itself. That seemed a lot more complicated, as the GUID for hg.exe isn't
known in this file (it's one of the "auto-derived" ones). We could also consider
adding a Condition that I think could check the Property and ensure it's either
empty or ends in a trailing slash, but that would be an installer runtime check
and I'm not convinced it'd actually be useful.
This will *not* cause existing installations that are in one of the bad
directories to fix themselves. Doing that would require a fair amount more
understanding of wix and windows installer than I have, and it *probably*
wouldn't be possible to be 100% correct about it either (there's nothing
preventing a user from intentionally installing it in C:\, though I don't know
why they would do so).
If someone wants to tackle fixing existing installations, I think that the first
installation is actually the only one that shows up in "Add or Remove Programs",
and that its registry keys still exist. You might be able to find something
under HKEY_USERS that lists both the "good" and the "bad" InstallDirs. Mine was
under `HKEY_USERS\S-1-5-18\Software\Mercurial\InstallDir` (C:\), and
`HKEY_USERS\S-1-5-21-..numbers..\Software\Mercurial\InstallDir` (C:\Program
Files\Mercurial). If you find exactly two, with one being the default path, and
the other being a prefix of it, the user almost certainly hit this bug :D
We had originally thought that this bug might be due to unattended
installations/upgrades, but I no longer think that's the case. We were able to
reproduce the issue by uninstalling all copies of Mercurial I could find,
installing one version (it chose the correct location), and then starting the
installer for a different version (higher or lower didn't matter). I did not
need to deal with an unattended or headless installation/upgrade to trigger the
issue, but it's possible that my system was "primed" for this bug to happen
because of a previous unattended installation/upgrade.
Differential Revision: https://phab.mercurial-scm.org/D9891
$ hg init ignorerepo
$ cd ignorerepo
debugignore with no hgignore should be deterministic:
$ hg debugignore
<nevermatcher>
Issue562: .hgignore requires newline at end:
$ touch foo
$ touch bar
$ touch baz
$ cat > makeignore.py <<EOF
> f = open(".hgignore", "w")
> f.write("ignore\n")
> f.write("foo\n")
> # No EOL here
> f.write("bar")
> f.close()
> EOF
$ "$PYTHON" makeignore.py
Should display baz only:
$ hg status
? baz
$ rm foo bar baz .hgignore makeignore.py
$ touch a.o
$ touch a.c
$ touch syntax
$ mkdir dir
$ touch dir/a.o
$ touch dir/b.o
$ touch dir/c.o
$ hg add dir/a.o
$ hg commit -m 0
$ hg add dir/b.o
$ hg status
A dir/b.o
? a.c
? a.o
? dir/c.o
? syntax
$ echo "*.o" > .hgignore
$ hg status
abort: $TESTTMP/ignorerepo/.hgignore: invalid pattern (relre): *.o (glob)
[255]
Ensure given files are relative to cwd
$ echo "dir/.*\.o" > .hgignore
$ hg status -i
I dir/c.o
$ hg debugignore dir/c.o dir/missing.o
dir/c.o is ignored
(ignore rule in $TESTTMP/ignorerepo/.hgignore, line 1: 'dir/.*\.o') (glob)
dir/missing.o is ignored
(ignore rule in $TESTTMP/ignorerepo/.hgignore, line 1: 'dir/.*\.o') (glob)
$ cd dir
$ hg debugignore c.o missing.o
c.o is ignored
(ignore rule in $TESTTMP/ignorerepo/.hgignore, line 1: 'dir/.*\.o') (glob)
missing.o is ignored
(ignore rule in $TESTTMP/ignorerepo/.hgignore, line 1: 'dir/.*\.o') (glob)
For icasefs, inexact matches also work, except for missing files
#if icasefs
$ hg debugignore c.O missing.O
c.o is ignored
(ignore rule in $TESTTMP/ignorerepo/.hgignore, line 1: 'dir/.*\.o') (glob)
missing.O is not ignored
#endif
$ cd ..
$ echo ".*\.o" > .hgignore
$ hg status
A dir/b.o
? .hgignore
? a.c
? syntax
Ensure that comments work:
$ touch 'foo#bar' 'quux#' 'quu0#'
#if no-windows
$ touch 'baz\' 'baz\wat' 'ba0\#wat' 'ba1\\' 'ba1\\wat' 'quu0\'
#endif
$ cat <<'EOF' >> .hgignore
> # full-line comment
> # whitespace-only comment line
> syntax# pattern, no whitespace, then comment
> a.c # pattern, then whitespace, then comment
> baz\\# # (escaped) backslash, then comment
> ba0\\\#w # (escaped) backslash, escaped comment character, then comment
> ba1\\\\# # (escaped) backslashes, then comment
> foo\#b # escaped comment character
> quux\## escaped comment character at end of name
> EOF
$ hg status
A dir/b.o
? .hgignore
? quu0#
? quu0\ (no-windows !)
$ cat <<'EOF' > .hgignore
> .*\.o
> syntax: glob
> syntax# pattern, no whitespace, then comment
> a.c # pattern, then whitespace, then comment
> baz\\#* # (escaped) backslash, then comment
> ba0\\\#w* # (escaped) backslash, escaped comment character, then comment
> ba1\\\\#* # (escaped) backslashes, then comment
> foo\#b* # escaped comment character
> quux\## escaped comment character at end of name
> quu0[\#]# escaped comment character inside [...]
> EOF
$ hg status
A dir/b.o
? .hgignore
? ba1\\wat (no-windows !)
? baz\wat (no-windows !)
? quu0\ (no-windows !)
$ rm 'foo#bar' 'quux#' 'quu0#'
#if no-windows
$ rm 'baz\' 'baz\wat' 'ba0\#wat' 'ba1\\' 'ba1\\wat' 'quu0\'
#endif
Check that '^\.' does not ignore the root directory:
$ echo "^\." > .hgignore
$ hg status
A dir/b.o
? a.c
? a.o
? dir/c.o
? syntax
Test that patterns from ui.ignore options are read:
$ echo > .hgignore
$ cat >> $HGRCPATH << EOF
> [ui]
> ignore.other = $TESTTMP/ignorerepo/.hg/testhgignore
> EOF
$ echo "glob:**.o" > .hg/testhgignore
$ hg status
A dir/b.o
? .hgignore
? a.c
? syntax
empty out testhgignore
$ echo > .hg/testhgignore
Test relative ignore path (issue4473):
$ cat >> $HGRCPATH << EOF
> [ui]
> ignore.relative = .hg/testhgignorerel
> EOF
$ echo "glob:*.o" > .hg/testhgignorerel
$ cd dir
$ hg status
A dir/b.o
? .hgignore
? a.c
? syntax
$ hg debugignore
<includematcher includes='.*\\.o(?:/|$)'>
$ cd ..
$ echo > .hg/testhgignorerel
$ echo "syntax: glob" > .hgignore
$ echo "re:.*\.o" >> .hgignore
$ hg status
A dir/b.o
? .hgignore
? a.c
? syntax
$ echo "syntax: invalid" > .hgignore
$ hg status
$TESTTMP/ignorerepo/.hgignore: ignoring invalid syntax 'invalid'
A dir/b.o
? .hgignore
? a.c
? a.o
? dir/c.o
? syntax
$ echo "syntax: glob" > .hgignore
$ echo "*.o" >> .hgignore
$ hg status
A dir/b.o
? .hgignore
? a.c
? syntax
$ echo "relglob:syntax*" > .hgignore
$ hg status
A dir/b.o
? .hgignore
? a.c
? a.o
? dir/c.o
$ echo "relglob:*" > .hgignore
$ hg status
A dir/b.o
$ cd dir
$ hg status .
A b.o
$ hg debugignore
<includematcher includes='.*(?:/|$)'>
$ hg debugignore b.o
b.o is ignored
(ignore rule in $TESTTMP/ignorerepo/.hgignore, line 1: '*') (glob)
$ cd ..
Check patterns that match only the directory
"(fsmonitor !)" below assumes that fsmonitor is enabled with
"walk_on_invalidate = false" (default), which doesn't involve
re-walking whole repository at detection of .hgignore change.
$ echo "^dir\$" > .hgignore
$ hg status
A dir/b.o
? .hgignore
? a.c
? a.o
? dir/c.o (fsmonitor !)
? 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
$ hg debugignore a.c
a.c is not ignored
$ hg debugignore dir/c.o
dir/c.o is ignored
(ignore rule in $TESTTMP/ignorerepo/.hgignore, line 2: 'dir/**/c.o') (glob)
Check rooted globs
$ hg purge --all --config extensions.purge=
$ echo "syntax: rootglob" > .hgignore
$ echo "a/*.ext" >> .hgignore
$ for p in a b/a aa; do mkdir -p $p; touch $p/b.ext; done
$ hg status -A 'set:**.ext'
? aa/b.ext
? b/a/b.ext
I a/b.ext
Check using 'include:' in ignore file
$ hg purge --all --config extensions.purge=
$ touch foo.included
$ echo ".*.included" > otherignore
$ hg status -I "include:otherignore"
? foo.included
$ echo "include:otherignore" >> .hgignore
$ hg status
A dir/b.o
? .hgignore
? otherignore
Check recursive uses of 'include:'
$ echo "include:nested/ignore" >> otherignore
$ mkdir nested nested/more
$ echo "glob:*ignore" > nested/ignore
$ echo "rootglob:a" >> nested/ignore
$ touch a nested/a nested/more/a
$ hg status
A dir/b.o
? nested/a
? nested/more/a
$ rm a nested/a nested/more/a
$ cp otherignore goodignore
$ echo "include:badignore" >> otherignore
$ hg status
skipping unreadable pattern file 'badignore': $ENOENT$
A dir/b.o
$ mv goodignore otherignore
Check using 'include:' while in a non-root directory
$ cd ..
$ hg -R ignorerepo status
A dir/b.o
$ cd ignorerepo
Check including subincludes
$ hg revert -q --all
$ hg purge --all --config extensions.purge=
$ echo ".hgignore" > .hgignore
$ mkdir dir1 dir2
$ touch dir1/file1 dir1/file2 dir2/file1 dir2/file2
$ echo "subinclude:dir2/.hgignore" >> .hgignore
$ echo "glob:file*2" > dir2/.hgignore
$ hg status
? dir1/file1
? dir1/file2
? dir2/file1
Check including subincludes with other patterns
$ echo "subinclude:dir1/.hgignore" >> .hgignore
$ mkdir dir1/subdir
$ touch dir1/subdir/file1
$ echo "rootglob:f?le1" > dir1/.hgignore
$ hg status
? dir1/file2
? dir1/subdir/file1
? dir2/file1
$ rm dir1/subdir/file1
$ echo "regexp:f.le1" > dir1/.hgignore
$ hg status
? dir1/file2
? dir2/file1
Check multiple levels of sub-ignores
$ touch dir1/subdir/subfile1 dir1/subdir/subfile3 dir1/subdir/subfile4
$ echo "subinclude:subdir/.hgignore" >> dir1/.hgignore
$ echo "glob:subfil*3" >> dir1/subdir/.hgignore
$ hg status
? dir1/file2
? dir1/subdir/subfile4
? dir2/file1
Check include subignore at the same level
$ mv dir1/subdir/.hgignore dir1/.hgignoretwo
$ echo "regexp:f.le1" > dir1/.hgignore
$ echo "subinclude:.hgignoretwo" >> dir1/.hgignore
$ echo "glob:file*2" > dir1/.hgignoretwo
$ hg status | grep file2
[1]
$ hg debugignore dir1/file2
dir1/file2 is ignored
(ignore rule in dir2/.hgignore, line 1: 'file*2')
#if windows
Windows paths are accepted on input
$ rm dir1/.hgignore
$ echo "dir1/file*" >> .hgignore
$ hg debugignore "dir1\file2"
dir1/file2 is ignored
(ignore rule in $TESTTMP\ignorerepo\.hgignore, line 4: 'dir1/file*')
$ hg up -qC .
#endif