The problem is, right now I'm not getting it to the build... but the idea 
is that the diff is generated locally and a build started by a local 
command line script, along the lines of this...

https://codeascraft.com/2011/10/11/did-you-try-it-before-you-committed/

It looks like one possibility is to escape the diff and then send it as a 
string parameter, is there a limit to the size one parameter can be, or is 
it just for the total POST?


On Thursday, May 19, 2016 at 7:30:40 PM UTC+1, Brian Ray wrote:
>
> Gotcha, did not follow how you were getting it across to the build.
>
> On Thursday, May 19, 2016 at 4:15:06 AM UTC-7, Jonathan Hodgson wrote:
>>
>> The remote machine currently isn't sharing the file, that's part of the 
>> point of uploading it in the http POST, sorting out a share seems like it 
>> would be an issue, it needs to be dynamic.
>>
>> On Thursday, May 19, 2016 at 2:25:47 AM UTC+1, Brian Ray wrote:
>>>
>>> Sorry, the API was URL#withInputStream, not #withReader.
>>>
>>> On Wednesday, May 18, 2016 at 6:24:11 PM UTC-7, Brian Ray wrote:
>>>>
>>>> Aha. Pipeline's under heavy development so unfortunately, there are 
>>>> gaps like this.
>>>>
>>>> How's the remote machine sharing the file? Windows directory share, 
>>>> e.g.?
>>>>
>>>> Depending on the type of file and how it's shared will likely determine 
>>>> the strategy. I had no success getting a pipeline script to use the Groovy 
>>>> GDK URL#withReader API to slurp a file from a URL and plop it into the 
>>>> workspace with the *writeFile *step but that was several revisions 
>>>> back with Pipeline. Instead I do the same with a Groovy script executed 
>>>> via 
>>>> a *sh/bat* step, inside a *node* block. But that fit my use case.
>>>>
>>>> On Wednesday, May 18, 2016 at 9:39:10 AM UTC-7, Jonathan Hodgson wrote:
>>>>>
>>>>> Thanks,
>>>>>
>>>>> What I've found so far also seems to indicate there is an issue with 
>>>>> File Parameters in Pipeline plugins. If that's the case then it really 
>>>>> begs 
>>>>> the question as to why they're an option on the pipeline project setup 
>>>>> page.
>>>>>
>>>>> I'm having trouble seeing how I'm going to do what I need to do 
>>>>> though, because the file has to be provided from a remote machine in the 
>>>>> build call.. it's a diff file, I need to achieve a "try before commit".
>>>>>
>>>>> As I said, I'm rather new to Jenkins.
>>>>>
>>>>> On Wednesday, May 18, 2016 at 5:14:37 PM UTC+1, Brian Ray wrote:
>>>>>>
>>>>>> Not 100% sure but I suspect that Pipeline job params can only be 
>>>>>> "regular" String parameters and perhaps param types whose values easily 
>>>>>> resolve to strings. My gut instinct is that more exotic param types that 
>>>>>> have side effects--like the File type--will not work.
>>>>>>
>>>>>> So in the current use case the straightforward workaround would be to 
>>>>>> use a String parameter to specify a filesystem path or URI, and then 
>>>>>> have 
>>>>>> the Pipeline script place it in the workspace. There may be 
>>>>>> Pipeline-friendly plugins that could do this for you as well, though 
>>>>>> they 
>>>>>> are not coming to mind. (In our use cases all resources needed in the 
>>>>>> workspace come from *checkout* steps against a source repo and some 
>>>>>> custom scripting to grab binary artifacts from Artifactory.)
>>>>>>
>>>>>> On Wednesday, May 18, 2016 at 12:53:13 AM UTC-7, Jonathan Hodgson 
>>>>>> wrote:
>>>>>>>
>>>>>>> Ok, I tried creating two projects, one a freestyle job, the other a 
>>>>>>> pipeline.
>>>>>>>
>>>>>>> The only thing I set up in each was a file as parameter. I ran a 
>>>>>>>  "Build using parameters" selecting the same file to upload.
>>>>>>>
>>>>>>> When I tried to view the file in the freestyle job, it worked, but 
>>>>>>> in the pipeline job I got the same error as above.
>>>>>>>
>>>>>>> On Wednesday, May 18, 2016 at 2:21:11 AM UTC+1, Jonathan Hodgson 
>>>>>>> wrote:
>>>>>>>>
>>>>>>>> I've been experimenting, and if I do what appears to be exactly the 
>>>>>>>> same thing with a Freestyle project, file upload is successful.
>>>>>>>>
>>>>>>>> I can't state yet whether the freestyle/pipeline job difference 
>>>>>>>> coinciding with a failure to upload the file is a coincidence, or the 
>>>>>>>> deciding factor.
>>>>>>>>
>>>>>>>

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