changeset 40442:bd0874977a5e stable

checkexec: create destination directory if necessary Since 460733327640, a "share" use the cache of the source repository. A side effect is that no `.hg/cache` directory exists in the "share" anymore. As a result, the checkexec logic can't use it to create its temporary file and have to use the working copy for that. This is suboptimal, it pollutes the working copy and prevents them to keep the file around in cache. We do not want to use the cache directory for the share target, it might be on a different file system. So instead, we (try to) create the directory if it is missing. This is a simple change that fixes the current behavior regression on stable. On default, we should probably ensure the proper directories are created when initializing the repository. We should also introduce a 'wcache' directory to hold cache file related to the working copy. This would clarify the cache situation regarding shares. The tests catch a couple of other affected cases.
author Boris Feld <boris.feld@octobus.net>
date Thu, 15 Nov 2018 03:09:23 +0100
parents 3bc2e550f2bd
children 25b7c4cb5de1
files mercurial/posix.py tests/test-fncache.t tests/test-inherit-mode.t tests/test-share.t
diffstat 4 files changed, 33 insertions(+), 4 deletions(-) [+]
line wrap: on
line diff
--- a/mercurial/posix.py	Thu Nov 15 22:59:38 2018 +0900
+++ b/mercurial/posix.py	Thu Nov 15 03:09:23 2018 +0100
@@ -181,7 +181,22 @@
 
     try:
         EXECFLAGS = stat.S_IXUSR | stat.S_IXGRP | stat.S_IXOTH
-        cachedir = os.path.join(path, '.hg', 'cache')
+        basedir = os.path.join(path, '.hg')
+        cachedir = os.path.join(basedir, 'cache')
+        storedir = os.path.join(basedir, 'store')
+        if not os.path.exists(cachedir):
+            try:
+                # we want to create the 'cache' directory, not the '.hg' one.
+                # Automatically creating '.hg' directory could silently spawn
+                # invalid Mercurial repositories. That seems like a bad idea.
+                os.mkdir(cachedir)
+                if os.path.exists(storedir):
+                    copymode(storedir, cachedir)
+                else:
+                    copymode(basedir, cachedir)
+            except (IOError, OSError):
+                # we other fallback logic triggers
+                pass
         if os.path.isdir(cachedir):
             checkisexec = os.path.join(cachedir, 'checkisexec')
             checknoexec = os.path.join(cachedir, 'checknoexec')
--- a/tests/test-fncache.t	Thu Nov 15 22:59:38 2018 +0900
+++ b/tests/test-fncache.t	Thu Nov 15 03:09:23 2018 +0100
@@ -88,6 +88,9 @@
   .hg/00manifest.i
   .hg/cache
   .hg/cache/branch2-served
+  .hg/cache/checkisexec
+  .hg/cache/checklink
+  .hg/cache/checklink-target
   .hg/cache/manifestfulltextcache (reporevlogstore !)
   .hg/cache/rbc-names-v1
   .hg/cache/rbc-revs-v1
@@ -122,6 +125,9 @@
   .hg/00changelog.i
   .hg/cache
   .hg/cache/branch2-served
+  .hg/cache/checkisexec
+  .hg/cache/checklink
+  .hg/cache/checklink-target
   .hg/cache/manifestfulltextcache (reporevlogstore !)
   .hg/cache/rbc-names-v1
   .hg/cache/rbc-revs-v1
--- a/tests/test-inherit-mode.t	Thu Nov 15 22:59:38 2018 +0900
+++ b/tests/test-inherit-mode.t	Thu Nov 15 03:09:23 2018 +0100
@@ -69,6 +69,9 @@
   00600 ./.hg/00changelog.i
   00770 ./.hg/cache/
   00660 ./.hg/cache/branch2-served
+  00711 ./.hg/cache/checkisexec
+  00777 ./.hg/cache/checklink
+  00600 ./.hg/cache/checklink-target
   00660 ./.hg/cache/manifestfulltextcache (reporevlogstore !)
   00660 ./.hg/cache/rbc-names-v1
   00660 ./.hg/cache/rbc-revs-v1
--- a/tests/test-share.t	Thu Nov 15 22:59:38 2018 +0900
+++ b/tests/test-share.t	Thu Nov 15 03:09:23 2018 +0100
@@ -22,16 +22,21 @@
   $ test -d .hg/store
   [1]
 
-share shouldn't have a cache dir, original repo should
+share shouldn't have a full cache dir, original repo should
 
   $ hg branches
   default                        0:d3873e73d99e
   $ hg tags
   tip                                0:d3873e73d99e
-  $ test -d .hg/cache
-  [1]
+  $ ls -1 .hg/cache
+  checkisexec
+  checklink
+  checklink-target
   $ ls -1 ../repo1/.hg/cache
   branch2-served
+  checkisexec
+  checklink
+  checklink-target
   manifestfulltextcache (reporevlogstore !)
   rbc-names-v1
   rbc-revs-v1