Only compile changed files when using grunt-contrib-watch about grunt-ts HOT 14 CLOSED

see the details at https://github.com/gruntjs/grunt-contrib-watch#compiling-files-as-needed

you need to set spawn : false in watch options too.

also, not sure how to do this with grunt-ts watch functionality.

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not sure how to do this with grunt-ts watch functionality.

grunt-ts runs in parallel now thanks to work by @Bartvds so simply using the passed file in https://github.com/grunt-ts/grunt-ts/blob/master/tasks/ts.ts#L984-L1002 would work.

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um, I have an issue. When use partial compilation, say if it detects one file changed, reference.ts is maintained wrongly. It always remove previous entries between

//grunt-start
//grunt-end

and enters currently changed file. If I change another file, it again clears previous and enter current. Is there a way to prevent removing previous reference, and do so only if physically remove a file?

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@bsr203 I didn't know you were going to start working on this :) . Here was my plan:

add a new flag fastcompile to the target options (not the task options). If it is truthy we :

1. compile only the changed files (either local watch or grunt watch)
2. do not do any custom code generation. If a custom code generation option is specified in the target we warn the user.

To disable code generation we need to flag out https://github.com/grunt-ts/grunt-ts/blob/master/tasks/ts.ts#L907-L924 and https://github.com/grunt-ts/grunt-ts/blob/master/tasks/ts.ts#L946-L953

This was going to the the increment towards : #34

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@bsr203 I was going to work on this after I sorted #69 out over the weekend

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I misunderstood the feature:

//Only recompile the ts files that have actually changed.
    var onChange = grunt.util._.debounce(function () {
        grunt.config('ts.base.src', Object.keys(changedFiles));
        changedFiles = Object.create(null);
    }, 200);
    grunt.event.on('watch', function (action, filepath) {
        changedFiles[filepath] = action;
        onChange();
    });

Belongs in your gruntfile. I thought it was going to be a part of grunt-ts. We need a way inside grunt-ts to find out if base target src i.e. base.src has been tampered with by grunt-watch. If so we should disable code generation.

I don't know how we can detect this, any ideas @bsr203 ?

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@bsr203 you might want to see : #76

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thanks for the feature. I am not an expert on grunt and not sure how you detect the changes. cant wait to try this out. thanks.

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@bsr203 if you update to grunt-ts 1.8.0 all you need to do is specify fast:true https://github.com/basarat/demo-fullstack/blob/fe562a9378a240765b0dafa4b5d696416fc9a108/src/Gruntfile.js#L29

And it will work with grunt-contrib-watch or any other tool you want to use for watching :)

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thanks basarat. I have been using it from [email protected], but didn't test it thoroughly. still converting stuff from js -> ts. thanks for this feature and your hard work.

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@basarat can you please add info about the file which has been compiled.

Running "ts:app" (ts) task
Compiling...
Using tsc v1.0.0

Success: 4.99s for 1 typescript files

Done, without errors.

I always get the message, 1 typescript files, even if I change multiple files. I use out option so it compiles to one file. Is it because of that?.

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I use out option

fast compile will not work with --out since tsc will need to compile all the files. I should have shown you this message : https://github.com/grunt-ts/grunt-ts/blob/master/tasks/modules/compile.ts#L68

I always get the message, 1 typescript files

I'd like to see the repo if possible to see what's happening.

an you please add info about the file which has been compiled.

You should have seen this message : https://github.com/grunt-ts/grunt-ts/blob/master/tasks/modules/compile.ts#L195 for all of the files that changed.

Again : I'd like to see the repo to reproduce. Thanks for your time :)

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I think myissue here , http://stackoverflow.com/questions/33080502/grunt-ts-watch-not-working-when-file-changed, is related to this. The problem for me with the build in watch could be that my needed type definitions, "typings/vendors.d.ts","typings/tsd.d.ts", "!libs/*/.ts" in .src is not included when it compiles the changed filse (from reading this issue i concluded that the src of the task is updated to only changed files)

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my problem (using external watch) was that i missed:

options: {
                    spawn: false,
                },

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