test-hardlinks: add testcase for repo copied with 'cp -al'
This patch adds a case to test-hardlinks.t which demonstrates that
hardlinks in the working directory are broken up (using 'hg update').
Motivation for this patch:
'hg help clone' shows copying repositories *and* the working directory
using 'cp -al', creating hardlinks in the *working directory* too (not
just in the store).
Note that we can't use 'cp -al' since for example MacOS X doesn't
support these options on cp. I'm thus using the same trick as in
test-hardlinks-safety.t for creating hardlinks in the working dir.
--- a/tests/test-hardlinks.t Thu Nov 18 23:15:13 2010 +0100
+++ b/tests/test-hardlinks.t Wed Nov 17 16:54:30 2010 +0100
@@ -10,6 +10,19 @@
> find $1 -type f | python $TESTTMP/nlinks.py
> }
+Some implementations of cp can't create hardlinks (replaces 'cp -al' on Linux):
+
+ $ cat > linkcp.py <<EOF
+ > from mercurial import util
+ > import sys
+ > util.copyfiles(sys.argv[1], sys.argv[2], hardlink=True)
+ > EOF
+
+ $ linkcp()
+ > {
+ > python $TESTTMP/linkcp.py $1 $2
+ > }
+
Prepare repo r1:
$ mkdir r1
@@ -152,3 +165,68 @@
1 r2/.hg/store/data/f1.i
1 r2/.hg/store/fncache
+
+ $ cd r3
+ $ hg tip --template '{rev}:{node|short}\n'
+ 11:a6451b6bc41f
+ $ echo bla > f1
+ $ hg ci -m1
+ $ cd ..
+
+Create hardlinked copy r4 of r3 (on Linux, we would call 'cp -al'):
+
+ $ linkcp r3 r4
+
+r4 has hardlinks in the working dir (not just inside .hg):
+
+ $ nlinksdir r4
+ 2 r4/.hg/00changelog.i
+ 2 r4/.hg/branch
+ 2 r4/.hg/branchheads.cache
+ 2 r4/.hg/dirstate
+ 2 r4/.hg/hgrc
+ 2 r4/.hg/last-message.txt
+ 2 r4/.hg/requires
+ 2 r4/.hg/store/00changelog.i
+ 2 r4/.hg/store/00manifest.i
+ 2 r4/.hg/store/data/d1/f2.d
+ 2 r4/.hg/store/data/d1/f2.i
+ 2 r4/.hg/store/data/f1.i
+ 2 r4/.hg/store/fncache
+ 2 r4/.hg/store/undo
+ 2 r4/.hg/tags.cache
+ 2 r4/.hg/undo.branch
+ 2 r4/.hg/undo.desc
+ 2 r4/.hg/undo.dirstate
+ 2 r4/d1/data1
+ 2 r4/d1/f2
+ 2 r4/f1
+
+Update back to revision 11 in r4 should break hardlink of file f1:
+
+ $ hg -R r4 up 11
+ 1 files updated, 0 files merged, 0 files removed, 0 files unresolved
+
+ $ nlinksdir r4
+ 2 r4/.hg/00changelog.i
+ 1 r4/.hg/branch
+ 2 r4/.hg/branchheads.cache
+ 1 r4/.hg/dirstate
+ 2 r4/.hg/hgrc
+ 2 r4/.hg/last-message.txt
+ 2 r4/.hg/requires
+ 2 r4/.hg/store/00changelog.i
+ 2 r4/.hg/store/00manifest.i
+ 2 r4/.hg/store/data/d1/f2.d
+ 2 r4/.hg/store/data/d1/f2.i
+ 2 r4/.hg/store/data/f1.i
+ 2 r4/.hg/store/fncache
+ 2 r4/.hg/store/undo
+ 2 r4/.hg/tags.cache
+ 2 r4/.hg/undo.branch
+ 2 r4/.hg/undo.desc
+ 2 r4/.hg/undo.dirstate
+ 2 r4/d1/data1
+ 2 r4/d1/f2
+ 1 r4/f1
+