ci,azure-pipelines: download artifacts from libiio's pipeline

With this, the libad9361-iio build will download artifacts from the libiio
pipeline, and use them.

Signed-off-by: Alexandru Ardelean <alexandru.ardelean@analog.com>

azure-pipelines.yml

@@ -1,5 +1,10 @@
 variables:
+  libiioPipelineId: 9
   branchName: $[ variables['Build.SourceBranchName'] ]
+  ${{ if eq(variables['Build.Reason'], 'PullRequest') }}:
+    targetBranch: $[ variables['System.PullRequest.TargetBranch'] ]
+  ${{ if ne(variables['Build.Reason'], 'PullRequest') }}:
+    targetBranch: $(branchName)
 
 trigger:
 - main
@@ -21,26 +26,42 @@ jobs:
         OS_TYPE: 'centos_docker'
         OS_VERSION: 7
         artifactName: 'libiio-Linux-CentOS-7'
+        PACKAGE_TO_INSTALL: 'build/*.rpm'
       centos_8_x86_64:
         imageName: 'ubuntu-latest'
         OS_TYPE: 'centos_docker'
         OS_VERSION: 8
         artifactName: 'libiio-Linux-CentOS-8'
+        PACKAGE_TO_INSTALL: 'build/*.rpm'
       ubuntu_16_04_x86_64:
         imageName: 'ubuntu-16.04'
         artifactName: 'libiio-Linux-Ubuntu-16.04'
+        PACKAGE_TO_INSTALL: 'build/*.deb'
       ubuntu_18_04_x86_64:
         imageName: 'ubuntu-18.04'
         artifactName: 'libiio-Linux-Ubuntu-18.04'
+        PACKAGE_TO_INSTALL: 'build/*.deb'
       ubuntu_20_04_x86_64:
         imageName: 'ubuntu-20.04'
         artifactName: 'libiio-Linux-Ubuntu-20.04'
+        PACKAGE_TO_INSTALL: 'build/*.deb'
   pool:
     vmImage: $(imageName)
   steps:
   - checkout: self
     fetchDepth: 1
     clean: true
+  - task: DownloadPipelineArtifact@2
+    inputs:
+      source: 'specific'
+      project: '$(System.TeamProjectId)'
+      pipeline: $(libiioPipelineId)
+      # FIXME: we may want to un-comment this at some point to make sure that
+      #        release artifacts don't get used for master artifacts and vice-versa
+      #runVersion: 'latestFromBranch'
+      #runBranch: 'refs/heads/$(targetBranch)'
+      artifact: '$(artifactName)-$(targetBranch)'
+      path: '$(Agent.BuildDirectory)/s/build/'
   - script: ./CI/travis/before_install_linux
     displayName: "Install Dependencies"
   - script: ./CI/travis/make_linux
@@ -74,10 +95,21 @@ jobs:
 #        artifactName: 'libiio-macOS-11.0'
   pool:
     vmImage: $(imageName)
+  variables:
+    PACKAGE_TO_INSTALL: 'build/*.pkg'
   steps:
   - checkout: self
     fetchDepth: 1
     clean: true
+  - task: DownloadPipelineArtifact@2
+    inputs:
+      source: 'specific'
+      project: '$(System.TeamProjectId)'
+      pipeline: $(libiioPipelineId)
+      #runVersion: 'latestFromBranch'
+      #runBranch: 'refs/heads/$(targetBranch)'
+      artifact: '$(artifactName)-$(branchName)'
+      path: '$(Agent.BuildDirectory)/s/build/'
   - script: ./CI/travis/before_install_darwin
     displayName: "Install Dependencies"
   - script: ./CI/travis/make_darwin