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I have a build flow that gets triggered by an SCMTRIGGER (ie "Polling per change"). It creates a downstream build job where the expectation is that it would use the SCMTRIGGER changelist to sync on. This is not the case, however, if a checkin has occured after the initial job was triggered. It will pick up all changes and sync to the latest for the downstream build.
When I look at the env vars for the downstream job, I see both a CHANGELIST and a P4_CHANGELIST. The first one is the correct CL, the other is the wrong CL for this job. An easy fix would be to use the CHANGELIST instead of the P4_CHANGELIST to sync on. (Can I override the P4_CHANGELIST as a build parameter being passed in??)
Here is a breakdown of the initial SCMTRIGGER postcheckin job and the subsequent DOWNSTREAM build job it spawned (Perforce changes followed by pertinent env vars for each):
////////////////////////////////////////////////////////////////////////////////////////////
// Build #809 (SCMTRIGGER)
////////////////////////////////////////////////////////////////////////////////////////////
POLLING LOG:
------------
View as plain text
This page captures the polling log that triggered this build.
Started on Jul 7, 2015 6:09:47 PM
Polling SCM changes on master
P4: Polling on: master with:jenkins_XXX_postcheckin
... p4 client -o jenkins_XXX_postcheckin
+
P4 Task: establishing connection.
... server: perforce.XXX.com:3666
... node: XXX001
... p4 cstat //jenkins_XXX_postcheckin/...
+
P4: Polling with label/change: 441291,now
... p4 changes -m100 //jenkins_XXX_postcheckin/...@441291,now
+
... p4 change -o 441300
+
... p4 describe -s 441300
+
... found change: 441300
next change: 441300
Done. Took 1.6 sec
Changes found
ENVIRONMENT VARIABLES:
----------------------
...
BUILD_CAUSE SCMTRIGGER,SCMTRIGGER
BUILD_CAUSE_SCMTRIGGER true
BUILD_DISPLAY_NAME #809
BUILD_ID 809
BUILD_NUMBER 809
...
EXECUTOR_NUMBER -1
...
JOB_NAME postcheckin_XXX
...
NODE_LABELS master
...
ROOT_BUILD_CAUSE SCMTRIGGER
ROOT_BUILD_CAUSE_SCMTRIGGER true
...
////////////////////////////////////////////////////////////////////////////////////////////
// Build #5649 (UPSTREAMTRIGGER)
////////////////////////////////////////////////////////////////////////////////////////////
CHANGES:
--------
441304 by XXX on Jul 7, 2015 6:23:17 AM
...
441300 by XXX on Jul 7, 2015 6:08:44 AM
ENVIRONMENT VARIABLES:
----------------------
...
BUILD_CAUSE UPSTREAMTRIGGER
BUILD_CAUSE_UPSTREAMTRIGGER true
BUILD_DISPLAY_NAME #5649
BUILD_ID 5649
BUILD_NUMBER 5649
...
CHANGELIST 441300 <=============== This is the CORRECT upstream CL
...
EXECUTOR_NUMBER 0
...
JOB_NAME build_XXX
...
NODE_LABELS build_pool
...
P4_CHANGELIST 441304 <=============== This is the INCORRECT latest CL
P4_CLIENT jenkins_XXX_build
...
ROOT_BUILD_CAUSE SCMTRIGGER
ROOT_BUILD_CAUSE_SCMTRIGGER true
...
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