Mercurial > hg
view tests/test-obsolete-checkheads.t @ 46415:8deab876fb59 stable
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
author | Kyle Lippincott <spectral@google.com> |
---|---|
date | Wed, 27 Jan 2021 10:29:21 -0800 |
parents | 9261f6c1d39b |
children |
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Check that obsolete properly strip heads $ cat >> $HGRCPATH << EOF > [phases] > # public changeset are not obsolete > publish=false > [command-templates] > log='{node|short} ({phase}) {desc|firstline}\n' > [experimental] > evolution.createmarkers=True > EOF $ mkcommit() { > echo "$1" > "$1" > hg add "$1" > hg ci -m "add $1" > } $ getid() { > hg id --debug -ir "desc('$1')" > } $ hg init remote $ cd remote $ mkcommit base $ hg phase --public . $ cd .. $ cp -R remote base $ hg clone remote local updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd local New head replaces old head ========================== setup (we add the 1 flags to prevent bumped error during the test) $ mkcommit old $ hg push pushing to $TESTTMP/remote searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files $ hg up -q '.^' $ mkcommit new created new head $ hg debugobsolete --flags 1 `getid old` `getid new` 1 new obsolescence markers obsoleted 1 changesets $ hg log -G --hidden @ 71e3228bffe1 (draft) add new | | x c70b08862e08 (draft) add old |/ o b4952fcf48cf (public) add base $ cp -R ../remote ../backup1 old exists remotely as draft. It is obsoleted by new that we now push. Push should not warn about creating new head $ hg push pushing to $TESTTMP/remote searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) old head is now public (public local version) ============================================= setup $ rm -fr ../remote $ cp -R ../backup1 ../remote $ hg -R ../remote phase --public c70b08862e08 $ hg pull -v pulling from $TESTTMP/remote searching for changes no changes found 1 local changesets published $ hg log -G --hidden @ 71e3228bffe1 (draft) add new | | o c70b08862e08 (public) add old |/ o b4952fcf48cf (public) add base Abort: old will still be an head because it's public. $ hg push pushing to $TESTTMP/remote searching for changes abort: push creates new remote head 71e3228bffe1 (merge or see 'hg help push' for details about pushing new heads) [20] old head is now public (public remote version) ============================================== TODO: Not implemented yet. # setup # # $ rm -fr ../remote # $ cp -R ../backup1 ../remote # $ hg -R ../remote phase --public c70b08862e08 # $ hg phase --draft --force c70b08862e08 # $ hg log -G --hidden # @ 71e3228bffe1 (draft) add new # | # | x c70b08862e08 (draft) add old # |/ # o b4952fcf48cf (public) add base # # # # Abort: old will still be an head because it's public. # # $ hg push # pushing to $TESTTMP/remote # searching for changes # abort: push creates new remote head 71e3228bffe1! # (merge or see 'hg help push' for details about pushing new heads) # [255] old head is obsolete but replacement is not pushed ================================================== setup $ rm -fr ../remote $ cp -R ../backup1 ../remote $ hg phase --draft --force '(0::) - 0' $ hg up -q '.^' $ mkcommit other created new head $ hg log -G --hidden @ d7d41ccbd4de (draft) add other | | o 71e3228bffe1 (draft) add new |/ | x c70b08862e08 (draft) add old |/ o b4952fcf48cf (public) add base old exists remotely as draft. It is obsoleted by new but we don't push new. Push should abort on new head $ hg push -r 'desc("other")' pushing to $TESTTMP/remote searching for changes abort: push creates new remote head d7d41ccbd4de (merge or see 'hg help push' for details about pushing new heads) [20] Both precursors and successors are already know remotely. Descendant adds heads =============================================================================== setup. (The obsolete marker is known locally only $ cd .. $ rm -rf local $ hg clone remote local updating to branch default 2 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd local $ mkcommit old old already tracked! nothing changed [1] $ hg up -q '.^' $ mkcommit new created new head $ hg push -f pushing to $TESTTMP/remote searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) $ mkcommit desc1 $ hg up -q '.^' $ mkcommit desc2 created new head $ hg debugobsolete `getid old` `getid new` 1 new obsolescence markers obsoleted 1 changesets $ hg log -G --hidden @ 5fe37041cc2b (draft) add desc2 | | o a3ef1d111c5f (draft) add desc1 |/ o 71e3228bffe1 (draft) add new | | x c70b08862e08 (draft) add old |/ o b4952fcf48cf (public) add base $ hg log -G --hidden -R ../remote o 71e3228bffe1 (draft) add new | | o c70b08862e08 (draft) add old |/ @ b4952fcf48cf (public) add base $ cp -R ../remote ../backup2 Push should not warn about adding new heads. We create one, but we'll delete one anyway. $ hg push pushing to $TESTTMP/remote searching for changes adding changesets adding manifests adding file changes added 2 changesets with 2 changes to 2 files (+1 heads) Remote head is unknown but obsoleted by a local changeset ========================================================= setup $ rm -fr ../remote $ cp -R ../backup1 ../remote $ cd .. $ rm -rf local $ hg clone remote local -r 0 adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets b4952fcf48cf updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd local $ mkcommit new $ hg -R ../remote id --debug -r tip c70b08862e0838ea6d7c59c85da2f1ed6c8d67da tip $ hg id --debug -r tip 71e3228bffe1886550777233d6c97bb5a6b2a650 tip $ hg debugobsolete c70b08862e0838ea6d7c59c85da2f1ed6c8d67da 71e3228bffe1886550777233d6c97bb5a6b2a650 1 new obsolescence markers $ hg log -G --hidden @ 71e3228bffe1 (draft) add new | o b4952fcf48cf (public) add base $ hg log -G --hidden -R ../remote o c70b08862e08 (draft) add old | @ b4952fcf48cf (public) add base We do not have enought data to take the right decision, we should fail $ hg push pushing to $TESTTMP/remote searching for changes remote has heads on branch 'default' that are not known locally: c70b08862e08 abort: push creates new remote head 71e3228bffe1 (pull and merge or see 'hg help push' for details about pushing new heads) [20] Pulling the missing data makes it work $ hg pull pulling from $TESTTMP/remote searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) (1 other changesets obsolete on arrival) (run 'hg heads' to see heads) $ hg push pushing to $TESTTMP/remote searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) Old head is pruned without parent data and new unrelated head added =================================================================== setup $ cd .. $ rm -R remote local $ cp -R backup1 remote $ hg clone remote local -qr c70b08862e08 $ cd local $ hg up -q '.^' $ mkcommit new-unrelated created new head $ hg debugobsolete `getid old` 1 new obsolescence markers obsoleted 1 changesets $ hg log -G --hidden @ 350a93b716be (draft) add new-unrelated | | x c70b08862e08 (draft) add old |/ o b4952fcf48cf (public) add base $ hg push pushing to $TESTTMP/remote searching for changes abort: push creates new remote head 350a93b716be (merge or see 'hg help push' for details about pushing new heads) [20]