view tests/test-commit-multiple.t @ 37153:f51c2780db3a

test-lfs-test-server: add a testcase for `hg serve`

I haven't figured out yet how to make the authentication checks work for a
specific list of users, so the 'web.allow-push' list is wildcarded.  (It appears
that the client doesn't react to a 401 by sending authentication data, which may
be caused in part by not having all of the headers in httpbasicauthhandler's
http_error_auth_reqed(), compared to a run of test-http.t.  But in any case, we
should probably have a separate set of tests for various authentication
scenarios.  As it is, without the wildcard, no push access is granted.)

There are several deviations from the `lfs-test-server` case:

 - `hg serve` emits a Server header.  I think Gregory indicated that this isn't
   easily suppressed.

 - `hg serve` names the "basic" transfer handler in the Batch API response.  Not
   having to specify it was for backwards compatability, so this seems like the
   right thing to do.  (`lfs-test-server` doesn't name it, whether it was
   explicitly requested by the client or not.)

 - PUT status for a newly created file is 201, per RFC-2616 [1].  The Basic
   Transfer API [2] shows an example upload transcript with a 200 response.  It
   doesn't make much sense to re-upload a file (unless it is corrupt) in an
   example, but I wouldn't be surprised if some other implementations also
   expect 200 because of this.  But the RFC says MUST use 201 for creation.

 - The Content-Type for the file transfers is "application/octet-stream", like
   the sample transcript (though I don't see it explicitly called out in the
   text elsewhere).  Using "text/plain" seems clearly wrong.

 - `lfs-test-server` isn't removing the action property and sending back an
   error code like the spec calls out when a file is missing or corrupt.  Doing
   so on the `hg serve` side reveals a bug in our client code when handling the
   response- it indicates the remote file is missing instead of corrupt around
   line 452.

I'll probably glob over the Content-Length differences once this settles down.
Prior to the recent hgweb refactoring, the Batch API response was using chunked
encodings instead.

Back to the RFC, I have no idea if the python framework handles the "MUST NOT
ignore any Content-* (e.g. Content-Range) headers that it does not understand or
implement and MUST return a 501" for a PUT request.

[1] https://www.w3.org/Protocols/rfc2616/rfc2616-sec9.html#sec9.6
[2] https://github.com/git-lfs/git-lfs/blob/master/docs/api/basic-transfers.md#uploads

# reproduce issue2264, issue2516

create test repo
  $ cat <<EOF >> $HGRCPATH
  > [extensions]
  > transplant =
  > EOF
  $ hg init repo
  $ cd repo
  $ template="{rev}  {desc|firstline}  [{branch}]\n"

# we need to start out with two changesets on the default branch
# in order to avoid the cute little optimization where transplant
# pulls rather than transplants
add initial changesets
  $ echo feature1 > file1
  $ hg ci -Am"feature 1"
  adding file1
  $ echo feature2 >> file2
  $ hg ci -Am"feature 2"
  adding file2

# The changes to 'bugfix' are enough to show the bug: in fact, with only
# those changes, it's a very noisy crash ("RuntimeError: nothing
# committed after transplant").  But if we modify a second file in the
# transplanted changesets, the bug is much more subtle: transplant
# silently drops the second change to 'bugfix' on the floor, and we only
# see it when we run 'hg status' after transplanting.  Subtle data loss
# bugs are worse than crashes, so reproduce the subtle case here.
commit bug fixes on bug fix branch
  $ hg branch fixes
  marked working directory as branch fixes
  (branches are permanent and global, did you want a bookmark?)
  $ echo fix1 > bugfix
  $ echo fix1 >> file1
  $ hg ci -Am"fix 1"
  adding bugfix
  $ echo fix2 > bugfix
  $ echo fix2 >> file1
  $ hg ci -Am"fix 2"
  $ hg log -G --template="$template"
  @  3  fix 2  [fixes]
  |
  o  2  fix 1  [fixes]
  |
  o  1  feature 2  [default]
  |
  o  0  feature 1  [default]
  
transplant bug fixes onto release branch
  $ hg update 0
  1 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ hg branch release
  marked working directory as branch release
  $ hg transplant 2 3
  applying [0-9a-f]{12} (re)
  [0-9a-f]{12} transplanted to [0-9a-f]{12} (re)
  applying [0-9a-f]{12} (re)
  [0-9a-f]{12} transplanted to [0-9a-f]{12} (re)
  $ hg log -G --template="$template"
  @  5  fix 2  [release]
  |
  o  4  fix 1  [release]
  |
  | o  3  fix 2  [fixes]
  | |
  | o  2  fix 1  [fixes]
  | |
  | o  1  feature 2  [default]
  |/
  o  0  feature 1  [default]
  
  $ hg status
  $ hg status --rev 0:4
  M file1
  A bugfix
  $ hg status --rev 4:5
  M bugfix
  M file1

now test that we fixed the bug for all scripts/extensions
  $ cat > $TESTTMP/committwice.py <<__EOF__
  > from mercurial import ui, hg, match, node
  > from time import sleep
  > 
  > def replacebyte(fn, b):
  >     f = open(fn, "rb+")
  >     f.seek(0, 0)
  >     f.write(b)
  >     f.close()
  > 
  > def printfiles(repo, rev):
  >     repo.ui.status(b"revision %d files: [%s]\n"
  >                    % (rev, b', '.join(b"'%s'" % f
  >                                       for f in repo[rev].files())))
  > 
  > repo = hg.repository(ui.ui.load(), b'.')
  > assert len(repo) == 6, \
  >        "initial: len(repo): %d, expected: 6" % len(repo)
  > 
  > replacebyte(b"bugfix", b"u")
  > sleep(2)
  > try:
  >     repo.ui.status(b"PRE: len(repo): %d\n" % len(repo))
  >     wlock = repo.wlock()
  >     lock = repo.lock()
  >     replacebyte(b"file1", b"x")
  >     repo.commit(text=b"x", user=b"test", date=(0, 0))
  >     replacebyte(b"file1", b"y")
  >     repo.commit(text=b"y", user=b"test", date=(0, 0))
  >     repo.ui.status(b"POST: len(repo): %d\n" % len(repo))
  > finally:
  >     lock.release()
  >     wlock.release()
  > printfiles(repo, 6)
  > printfiles(repo, 7)
  > __EOF__
  $ $PYTHON $TESTTMP/committwice.py
  PRE: len(repo): 6
  POST: len(repo): 8
  revision 6 files: ['bugfix', 'file1']
  revision 7 files: ['file1']

Do a size-preserving modification outside of that process
  $ echo abcd > bugfix
  $ hg status
  M bugfix
  $ hg log --template "{rev}  {desc}  {files}\n" -r5:
  5  fix 2  bugfix file1
  6  x  bugfix file1
  7  y  file1

  $ cd ..