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largefiles: automatically load largefiles extension when required (BC)
authorGregory Szorc <gregory.szorc@gmail.com>
Thu, 20 Sep 2018 15:30:00 -0700
changeset 39854 823a580448d7
parent 39853 bcf72d7b1524
child 39855 62a532045e71
largefiles: automatically load largefiles extension when required (BC) This is very similar to what we just did for LFS but for largefiles. See recent commit messages for the rationale here. Differential Revision: https://phab.mercurial-scm.org/D4713
hgext/largefiles/overrides.py file | annotate | diff | comparison | revisions
hgext/largefiles/uisetup.py file | annotate | diff | comparison | revisions
mercurial/localrepo.py file | annotate | diff | comparison | revisions
tests/test-largefiles-misc.t file | annotate | diff | comparison | revisions
tests/test-largefiles.t file | annotate | diff | comparison | revisions
tests/test-subrepo-deep-nested-change.t file | annotate | diff | comparison | revisions 
--- a/hgext/largefiles/overrides.py	Thu Sep 20 15:18:13 2018 -0700
+++ b/hgext/largefiles/overrides.py	Thu Sep 20 15:30:00 2018 -0700
@@ -889,11 +889,6 @@
         if not repo:
             return result
 
-        # If largefiles is required for this repo, permanently enable it locally
-        if 'largefiles' in repo.requirements:
-            repo.vfs.append('hgrc',
-                            util.tonativeeol('\n[extensions]\nlargefiles=\n'))
-
         # Caching is implicitly limited to 'rev' option, since the dest repo was
         # truncated at that point.  The user may expect a download count with
         # this option, so attempt whether or not this is a largefile repo.
@@ -905,14 +900,6 @@
 
     return result
 
-def hgpostshare(orig, sourcerepo, destrepo, defaultpath=None):
-    orig(sourcerepo, destrepo, defaultpath=defaultpath)
-
-    # If largefiles is required for this repo, permanently enable it locally
-    if 'largefiles' in destrepo.requirements:
-        destrepo.vfs.append('hgrc',
-                            util.tonativeeol('\n[extensions]\nlargefiles=\n'))
-
 def overriderebase(orig, ui, repo, **opts):
     if not util.safehasattr(repo, '_largefilesenabled'):
         return orig(ui, repo, **opts)
--- a/hgext/largefiles/uisetup.py	Thu Sep 20 15:18:13 2018 -0700
+++ b/hgext/largefiles/uisetup.py	Thu Sep 20 15:30:00 2018 -0700
@@ -126,7 +126,6 @@
                  _('download all versions of all largefiles'))]
     entry[1].extend(cloneopt)
     extensions.wrapfunction(hg, 'clone', overrides.hgclone)
-    extensions.wrapfunction(hg, 'postshare', overrides.hgpostshare)
 
     entry = extensions.wrapcommand(commands.table, 'cat',
                                    overrides.overridecat)
--- a/mercurial/localrepo.py	Thu Sep 20 15:18:13 2018 -0700
+++ b/mercurial/localrepo.py	Thu Sep 20 15:30:00 2018 -0700
@@ -588,6 +588,7 @@
     # Map of requirements to list of extensions to load automatically when
     # requirement is present.
     autoextensions = {
+        b'largefiles': [b'largefiles'],
         b'lfs': [b'lfs'],
     }
 
--- a/tests/test-largefiles-misc.t	Thu Sep 20 15:18:13 2018 -0700
+++ b/tests/test-largefiles-misc.t	Thu Sep 20 15:30:00 2018 -0700
@@ -1,6 +1,53 @@
 This file contains testcases that tend to be related to special cases or less
 common commands affecting largefile.
 
+  $ hg init requirements
+  $ cd requirements
+
+# largefiles not loaded by default.
+
+  $ hg config extensions
+  [1]
+
+# Adding largefiles to requires file will auto-load largefiles extension.
+
+  $ echo largefiles >> .hg/requires
+  $ hg config extensions
+  extensions.largefiles=
+
+# But only if there is no config entry for the extension already.
+
+  $ cat > .hg/hgrc << EOF
+  > [extensions]
+  > largefiles=!
+  > EOF
+
+  $ hg config extensions
+  abort: repository requires features unknown to this Mercurial: largefiles!
+  (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
+  [255]
+
+  $ cat > .hg/hgrc << EOF
+  > [extensions]
+  > largefiles=
+  > EOF
+
+  $ hg config extensions
+  extensions.largefiles=
+
+  $ cat > .hg/hgrc << EOF
+  > [extensions]
+  > largefiles = missing.py
+  > EOF
+
+  $ hg config extensions
+  *** failed to import extension largefiles from missing.py: [Errno 2] $ENOENT$: 'missing.py'
+  abort: repository requires features unknown to this Mercurial: largefiles!
+  (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
+  [255]
+
+  $ cd ..
+
 Each sections should be independent of each others.
 
   $ USERCACHE="$TESTTMP/cache"; export USERCACHE
@@ -220,10 +267,8 @@
   getting changed largefiles
   1 largefiles updated, 0 removed
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
-  $ cat ../shared_lfrepo/.hg/hgrc
-  
-  [extensions]
-  largefiles=
+  $ grep largefiles ../shared_lfrepo/.hg/requires
+  largefiles
 
 verify that large files in subrepos handled properly
   $ hg init subrepo
--- a/tests/test-largefiles.t	Thu Sep 20 15:18:13 2018 -0700
+++ b/tests/test-largefiles.t	Thu Sep 20 15:30:00 2018 -0700
@@ -1206,12 +1206,12 @@
   adding file changes
   added 1 changesets with 2 changes to 2 files (+1 heads)
   new changesets a381d2c8c80e (1 drafts)
+  0 largefiles cached
   rebasing 8:f574fb32bb45 "modify normal file largefile in repo d"
   Invoking status precommit hook
   M sub/normal4
   M sub2/large6
   saved backup bundle to $TESTTMP/d/.hg/strip-backup/f574fb32bb45-dd1d9f80-rebase.hg
-  0 largefiles cached
   $ [ -f .hg/largefiles/e166e74c7303192238d60af5a9c4ce9bef0b7928 ]
   $ hg log --template '{rev}:{node|short}  {desc|firstline}\n'
   9:598410d3eb9a  modify normal file largefile in repo d
--- a/tests/test-subrepo-deep-nested-change.t	Thu Sep 20 15:18:13 2018 -0700
+++ b/tests/test-subrepo-deep-nested-change.t	Thu Sep 20 15:30:00 2018 -0700
@@ -203,21 +203,8 @@
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
 
 Largefiles is NOT enabled in the clone if the source repo doesn't require it
-  $ cat cloned/.hg/hgrc
-  # example repository config (see 'hg help config' for more info)
-  [paths]
-  default = $TESTTMP/main
-  
-  # path aliases to other clones of this repo in URLs or filesystem paths
-  # (see 'hg help config.paths' for more info)
-  #
-  # default:pushurl = ssh://jdoe@example.net/hg/jdoes-fork
-  # my-fork         = ssh://jdoe@example.net/hg/jdoes-fork
-  # my-clone        = /home/jdoe/jdoes-clone
-  
-  [ui]
-  # name and email (local to this repository, optional), e.g.
-  # username = Jane Doe <jdoe@example.com>
+  $ grep largefiles cloned/.hg/hgrc
+  [1]
 
 Checking cloned repo ids
 
@@ -790,29 +777,13 @@
   $ rm -rf ../archive_lf
 
 The local repo enables largefiles if a largefiles repo is cloned
+
   $ hg showconfig extensions
-  abort: repository requires features unknown to this Mercurial: largefiles!
-  (see https://mercurial-scm.org/wiki/MissingRequirement for more information)
-  [255]
+  extensions.largefiles=
+
   $ hg --config extensions.largefiles= clone -qU . ../lfclone
-  $ cat ../lfclone/.hg/hgrc
-  # example repository config (see 'hg help config' for more info)
-  [paths]
-  default = $TESTTMP/cloned
-  
-  # path aliases to other clones of this repo in URLs or filesystem paths
-  # (see 'hg help config.paths' for more info)
-  #
-  # default:pushurl = ssh://jdoe@example.net/hg/jdoes-fork
-  # my-fork         = ssh://jdoe@example.net/hg/jdoes-fork
-  # my-clone        = /home/jdoe/jdoes-clone
-  
-  [ui]
-  # name and email (local to this repository, optional), e.g.
-  # username = Jane Doe <jdoe@example.com>
-  
-  [extensions]
-  largefiles=
+  $ grep largefiles ../lfclone/.hg/requires
+  largefiles
 
 Find an exact match to a standin (should archive nothing)
   $ hg --config extensions.largefiles= archive -S -I 'sub/sub2/.hglf/large.bin' ../archive_lf
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