upstream/mercurial-mirror Files · tests/test-oldcgi.t

wireprotov2: implement commands as a generator of objects...

wireprotov2: implement commands as a generator of objects Previously, wire protocol version 2 inherited version 1's model of having separate types to represent the results of different wire protocol commands. As I implemented more powerful commands in future commits, I found I was using a common pattern of returning a special type to hold a generator. This meant the command function required a closure to do most of the work. That made logic flow more difficult to follow. I also noticed that many commands were effectively a sequence of objects to be CBOR encoded. I think it makes sense to define version 2 commands as generators. This way, commands can simply emit the data structures they wish to send to the client. This eliminates the need for a closure in command functions and removes encoding from the bodies of commands. As part of this commit, the handling of response objects has been moved into the serverreactor class. This puts the reactor in the driver's seat with regards to CBOR encoding and error handling. Having error handling in the function that emits frames is particularly important because exceptions in that function can lead to things getting in a bad state: I'm fairly certain that uncaught exceptions in the frame generator were causing deadlocks. I also introduced a dedicated error type for explicit error reporting in command handlers. This will be used in subsequent commits. There's still a bit of work to be done here, especially around formalizing the error handling "protocol." I've added yet another TODO to track this so we don't forget. Test output changed because we're using generators and no longer know we are at the end of the data until we hit the end of the generator. This means we can't emit the end-of-stream flag until we've exhausted the generator. Hence the introduction of 0-sized end-of-stream frames. Differential Revision: https://phab.mercurial-scm.org/D4472

Augie Fackler - - Load All Authors

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        Matt Mackall
    
tests: replace exit 80 with #require

              r22046
            
      #require no-msys # MSYS will translate web paths as if they were file paths

        Mads Kiilerich
    
tests: introduce 'hghave msys' to skip tests that would fail because of msys

              r15567
            
        Matt Mackall
    
tests: unify test-oldcgi

              r12472
            
      This tests if CGI files from before d0db3462d568 still work.

        $ hg init test

        $ cat >hgweb.cgi <<HGWEB

        Augie Fackler
    
tests: use $PYTHON in #! so we always use the right Python

              r32938
            
        > #!$PYTHON

        Matt Mackall
    
tests: unify test-oldcgi

              r12472
            
        > #

        > # An example CGI script to use hgweb, edit as necessary

        > 

        > import cgitb, os, sys

        > cgitb.enable()

        > 

        > # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install

        > from mercurial import hgweb

        > 

        > h = hgweb.hgweb("test", "Empty test repository")

        > h.run()

        > HGWEB

        $ chmod 755 hgweb.cgi

        $ cat >hgweb.config <<HGWEBDIRCONF

        > [paths]

        > test = test

        > HGWEBDIRCONF

        $ cat >hgwebdir.cgi <<HGWEBDIR

        Augie Fackler
    
tests: use $PYTHON in #! so we always use the right Python

              r32938
            
        > #!$PYTHON

        Matt Mackall
    
tests: unify test-oldcgi

              r12472
            
        > #

        > # An example CGI script to export multiple hgweb repos, edit as necessary

        > 

        > import cgitb, sys

        > cgitb.enable()

        > 

        > # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install

        > from mercurial import hgweb

        > 

        > # The config file looks like this.  You can have paths to individual

        > # repos, collections of repos in a directory tree, or both.

        > #

        > # [paths]

        > # virtual/path = /real/path

        > # virtual/path = /real/path

        > #

        > # [collections]

        > # /prefix/to/strip/off = /root/of/tree/full/of/repos

        > #

        > # collections example: say directory tree /foo contains repos /foo/bar,

        > # /foo/quux/baz.  Give this config section:

        > #   [collections]

        > #   /foo = /foo

        > # Then repos will list as bar and quux/baz.

        > 

        > # Alternatively you can pass a list of ('virtual/path', '/real/path') tuples

        > # or use a dictionary with entries like 'virtual/path': '/real/path'

        > 

        > h = hgweb.hgwebdir("hgweb.config")

        > h.run()

        > HGWEBDIR

        $ chmod 755 hgwebdir.cgi

        StevenGBrown
    
tests: remove duplication of the CGI environment variables

              r13269
            
        $ . "$TESTDIR/cgienv"

        Augie Fackler
    
tests: replace yet more calls to `python` with $PYTHON...

              r33262
            
        $ $PYTHON hgweb.cgi > page1

        $ $PYTHON hgwebdir.cgi > page2

        Matt Mackall
    
tests: unify test-oldcgi

              r12472
            
        $ PATH_INFO="/test/"

        $ PATH_TRANSLATED="/var/something/test.cgi"

        $ REQUEST_URI="/test/test/"

        $ SCRIPT_URI="http://hg.omnifarious.org/test/test/"

        $ SCRIPT_URL="/test/test/"

        Augie Fackler
    
tests: replace yet more calls to `python` with $PYTHON...

              r33262
            
        $ $PYTHON hgwebdir.cgi > page3

        Matt Mackall
    
tests: unify test-oldcgi

              r12472
            
        $ grep -i error page1 page2 page3

        [1]

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Matt Mackall tests: replace exit 80 with #require	r22046	#require no-msys # MSYS will translate web paths as if they were file paths
Mads Kiilerich tests: introduce 'hghave msys' to skip tests that would fail because of msys	r15567
Matt Mackall tests: unify test-oldcgi	r12472	This tests if CGI files from before d0db3462d568 still work.

		$ hg init test
		$ cat >hgweb.cgi <<HGWEB
Augie Fackler tests: use $PYTHON in #! so we always use the right Python	r32938	> #!$PYTHON
Matt Mackall tests: unify test-oldcgi	r12472	> #
		> # An example CGI script to use hgweb, edit as necessary
		>
		> import cgitb, os, sys
		> cgitb.enable()
		>
		> # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install
		> from mercurial import hgweb
		>
		> h = hgweb.hgweb("test", "Empty test repository")
		> h.run()
		> HGWEB

		$ chmod 755 hgweb.cgi

		$ cat >hgweb.config <<HGWEBDIRCONF
		> [paths]
		> test = test
		> HGWEBDIRCONF

		$ cat >hgwebdir.cgi <<HGWEBDIR
Augie Fackler tests: use $PYTHON in #! so we always use the right Python	r32938	> #!$PYTHON
Matt Mackall tests: unify test-oldcgi	r12472	> #
		> # An example CGI script to export multiple hgweb repos, edit as necessary
		>
		> import cgitb, sys
		> cgitb.enable()
		>
		> # sys.path.insert(0, "/path/to/python/lib") # if not a system-wide install
		> from mercurial import hgweb
		>
		> # The config file looks like this. You can have paths to individual
		> # repos, collections of repos in a directory tree, or both.
		> #
		> # [paths]
		> # virtual/path = /real/path
		> # virtual/path = /real/path
		> #
		> # [collections]
		> # /prefix/to/strip/off = /root/of/tree/full/of/repos
		> #
		> # collections example: say directory tree /foo contains repos /foo/bar,
		> # /foo/quux/baz. Give this config section:
		> # [collections]
		> # /foo = /foo
		> # Then repos will list as bar and quux/baz.
		>
		> # Alternatively you can pass a list of ('virtual/path', '/real/path') tuples
		> # or use a dictionary with entries like 'virtual/path': '/real/path'
		>
		> h = hgweb.hgwebdir("hgweb.config")
		> h.run()
		> HGWEBDIR

		$ chmod 755 hgwebdir.cgi

StevenGBrown tests: remove duplication of the CGI environment variables	r13269	$ . "$TESTDIR/cgienv"
Augie Fackler tests: replace yet more calls to `python` with $PYTHON...	r33262	$ $PYTHON hgweb.cgi > page1
		$ $PYTHON hgwebdir.cgi > page2
Matt Mackall tests: unify test-oldcgi	r12472
		$ PATH_INFO="/test/"
		$ PATH_TRANSLATED="/var/something/test.cgi"
		$ REQUEST_URI="/test/test/"
		$ SCRIPT_URI="http://hg.omnifarious.org/test/test/"
		$ SCRIPT_URL="/test/test/"
Augie Fackler tests: replace yet more calls to `python` with $PYTHON...	r33262	$ $PYTHON hgwebdir.cgi > page3
Matt Mackall tests: unify test-oldcgi	r12472
		$ grep -i error page1 page2 page3
		[1]