upstream/mercurial-mirror Files · tests/test-sparse-verbose-json.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

Gregory Szorc - - Load All Authors

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        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
      test sparse with --verbose and -T json

        $ hg init myrepo

        $ cd myrepo

        $ cat > .hg/hgrc <<EOF

        > [extensions]

        > sparse=

        > strip=

        > EOF

        $ echo a > show

        $ echo x > hide

        $ hg ci -Aqm 'initial'

        $ echo b > show

        $ echo y > hide

        $ echo aa > show2

        $ echo xx > hide2

        $ hg ci -Aqm 'two'

      Verify basic --include and --reset

        $ hg up -q 0

        Gregory Szorc
    
sparse: rename command to debugsparse...

              r33293
            
        $ hg debugsparse --include 'hide' -Tjson

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        [

         {

          "exclude_rules_added": 0,

          "files_added": 0,

          "files_conflicting": 0,

          "files_dropped": 1,

          "include_rules_added": 1,

          "profiles_added": 0

         }

        ]

        Gregory Szorc
    
sparse: rename command to debugsparse...

              r33293
            
        $ hg debugsparse --clear-rules

        $ hg debugsparse --include 'hide' --verbose

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        removing show

        Gregory Szorc
    
sparse: move printing of sparse config changes function into core...

              r33355
            
        Profiles changed: 0

        Include rules changed: 1

        Exclude rules changed: 0

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        Gregory Szorc
    
sparse: rename command to debugsparse...

              r33293
            
        $ hg debugsparse --reset -Tjson

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        [

         {

          "exclude_rules_added": 0,

          "files_added": 1,

          "files_conflicting": 0,

          "files_dropped": 0,

          "include_rules_added": -1,

          "profiles_added": 0

         }

        ]

        Gregory Szorc
    
sparse: rename command to debugsparse...

              r33293
            
        $ hg debugsparse --include 'hide'

        $ hg debugsparse --reset --verbose

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        getting show

        Gregory Szorc
    
sparse: move printing of sparse config changes function into core...

              r33355
            
        Profiles changed: 0

        Include rules changed: -1

        Exclude rules changed: 0

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
      Verifying that problematic files still allow us to see the deltas when forcing:

        Gregory Szorc
    
sparse: rename command to debugsparse...

              r33293
            
        $ hg debugsparse --include 'show*'

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        $ touch hide

        Gregory Szorc
    
sparse: rename command to debugsparse...

              r33293
            
        $ hg debugsparse --delete 'show*' --force -Tjson

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        pending changes to 'hide'

        [

         {

          "exclude_rules_added": 0,

          "files_added": 0,

          "files_conflicting": 1,

          "files_dropped": 0,

          "include_rules_added": -1,

          "profiles_added": 0

         }

        ]

        Gregory Szorc
    
sparse: rename command to debugsparse...

              r33293
            
        $ hg debugsparse --include 'show*' --force

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        pending changes to 'hide'

        Gregory Szorc
    
sparse: rename command to debugsparse...

              r33293
            
        $ hg debugsparse --delete 'show*' --force --verbose

        Gregory Szorc
    
sparse: vendor Facebook-developed extension...

              r33289
            
        pending changes to 'hide'

        Gregory Szorc
    
sparse: move printing of sparse config changes function into core...

              r33355
            
        Profiles changed: 0

        Include rules changed: -1

        Exclude rules changed: 0

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Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	test sparse with --verbose and -T json

		$ hg init myrepo
		$ cd myrepo
		$ cat > .hg/hgrc <<EOF
		> [extensions]
		> sparse=
		> strip=
		> EOF

		$ echo a > show
		$ echo x > hide
		$ hg ci -Aqm 'initial'

		$ echo b > show
		$ echo y > hide
		$ echo aa > show2
		$ echo xx > hide2
		$ hg ci -Aqm 'two'

		Verify basic --include and --reset

		$ hg up -q 0
Gregory Szorc sparse: rename command to debugsparse...	r33293	$ hg debugsparse --include 'hide' -Tjson
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	[
		{
		"exclude_rules_added": 0,
		"files_added": 0,
		"files_conflicting": 0,
		"files_dropped": 1,
		"include_rules_added": 1,
		"profiles_added": 0
		}
		]
Gregory Szorc sparse: rename command to debugsparse...	r33293	$ hg debugsparse --clear-rules
		$ hg debugsparse --include 'hide' --verbose
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	removing show
Gregory Szorc sparse: move printing of sparse config changes function into core...	r33355	Profiles changed: 0
		Include rules changed: 1
		Exclude rules changed: 0
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289
Gregory Szorc sparse: rename command to debugsparse...	r33293	$ hg debugsparse --reset -Tjson
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	[
		{
		"exclude_rules_added": 0,
		"files_added": 1,
		"files_conflicting": 0,
		"files_dropped": 0,
		"include_rules_added": -1,
		"profiles_added": 0
		}
		]
Gregory Szorc sparse: rename command to debugsparse...	r33293	$ hg debugsparse --include 'hide'
		$ hg debugsparse --reset --verbose
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	getting show
Gregory Szorc sparse: move printing of sparse config changes function into core...	r33355	Profiles changed: 0
		Include rules changed: -1
		Exclude rules changed: 0
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289
		Verifying that problematic files still allow us to see the deltas when forcing:

Gregory Szorc sparse: rename command to debugsparse...	r33293	$ hg debugsparse --include 'show*'
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	$ touch hide
Gregory Szorc sparse: rename command to debugsparse...	r33293	$ hg debugsparse --delete 'show*' --force -Tjson
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	pending changes to 'hide'
		[
		{
		"exclude_rules_added": 0,
		"files_added": 0,
		"files_conflicting": 1,
		"files_dropped": 0,
		"include_rules_added": -1,
		"profiles_added": 0
		}
		]
Gregory Szorc sparse: rename command to debugsparse...	r33293	$ hg debugsparse --include 'show*' --force
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	pending changes to 'hide'
Gregory Szorc sparse: rename command to debugsparse...	r33293	$ hg debugsparse --delete 'show*' --force --verbose
Gregory Szorc sparse: vendor Facebook-developed extension...	r33289	pending changes to 'hide'
Gregory Szorc sparse: move printing of sparse config changes function into core...	r33355	Profiles changed: 0
		Include rules changed: -1
		Exclude rules changed: 0