azure: move build scripts into "azure-pipelines" directory

Since we have migrated to Azure Pipelines, we have deprecated and
subsequentally removed all infrastructure for AppVeyor and
Travis. Thus it doesn't make a lot of sense to have the split
between "ci/" and "azure-pipelines/" directories anymoer, as
"azure-pipelines/" is essentially our only CI.

Move all CI scripts into the "azure-pipelines/" directory to have
everything centrally located and to remove clutter in the
top-level directory.

azure-pipelines.yml

@@ -59,7 +59,7 @@ jobs:
   pool:
     vmImage: 'macOS 10.13'
   steps:
-  - bash: . '$(Build.SourcesDirectory)/ci/setup-osx.sh'
+  - bash: . '$(Build.SourcesDirectory)/azure-pipelines/setup-osx.sh'
     displayName: Setup
   - template: azure-pipelines/bash.yml
     parameters:
@@ -91,7 +91,7 @@ jobs:
   displayName: 'Windows (amd64; MinGW)'
   pool: Hosted
   steps:
-  - powershell: . '$(Build.SourcesDirectory)\ci\setup-mingw.ps1'
+  - powershell: . '$(Build.SourcesDirectory)\azure-pipelines\setup-mingw.ps1'
     displayName: Setup
     env:
       TEMP: $(Agent.TempDirectory)
@@ -106,7 +106,7 @@ jobs:
   displayName: 'Windows (x86; MinGW)'
   pool: Hosted
   steps:
-  - powershell: . '$(Build.SourcesDirectory)\ci\setup-mingw.ps1'
+  - powershell: . '$(Build.SourcesDirectory)\azure-pipelines\setup-mingw.ps1'
     displayName: Setup
     workingDirectory: '$(Build.BinariesDirectory)'
     env:

azure-pipelines/bash.yml

 # These are the steps used for building on machines with bash.
 steps:
-- bash: . '$(Build.SourcesDirectory)/ci/build.sh'
+- bash: . '$(Build.SourcesDirectory)/azure-pipelines/build.sh'
   displayName: Build
   workingDirectory: '$(Build.BinariesDirectory)'
   env: ${{ parameters.environmentVariables }}
-- bash: . '$(Build.SourcesDirectory)/ci/test.sh'
+- bash: . '$(Build.SourcesDirectory)/azure-pipelines/test.sh'
   displayName: Test
   workingDirectory: '$(Build.BinariesDirectory)'
   env: ${{ parameters.environmentVariables }}

azure-pipelines/coverity.yml

@@ -18,7 +18,7 @@ jobs:
       envVars: |
        COVERITY_TOKEN=$(COVERITY_TOKEN)
       workDir: '/build'
-      containerCommand: '/src/ci/coverity-build.sh'
+      containerCommand: '/src/azure-pipelines/coverity-build.sh'
       detached: false
   - task: Docker@0
     displayName: Publish
@@ -31,6 +31,6 @@ jobs:
       envVars: |
        COVERITY_TOKEN=$(COVERITY_TOKEN)
       workDir: '/build'
-      containerCommand: '/src/ci/coverity-publish.sh'
+      containerCommand: '/src/azure-pipelines/coverity-publish.sh'
       detached: false
     continueOnError: true

azure-pipelines/docker.yml

@@ -14,7 +14,7 @@ steps:
      $(Build.BinariesDirectory):/build
     envVars: ${{ parameters.environmentVariables }}
     workDir: '/build'
-    containerCommand: '/src/ci/build.sh'
+    containerCommand: '/src/azure-pipelines/build.sh'
     detached: false
 - task: docker@0
   displayName: Test
@@ -26,7 +26,7 @@ steps:
      $(Build.BinariesDirectory):/build
     envVars: ${{ parameters.environmentVariables }}
     workDir: '/build'
-    containerCommand: '/src/ci/test.sh'
+    containerCommand: '/src/azure-pipelines/test.sh'
     detached: false
 - task: publishtestresults@2
   displayName: Publish Test Results

azure-pipelines/nightly.yml

@@ -59,7 +59,7 @@ jobs:
   pool:
     vmImage: 'macOS 10.13'
   steps:
-  - bash: . '$(Build.SourcesDirectory)/ci/setup-osx.sh'
+  - bash: . '$(Build.SourcesDirectory)/azure-pipelines/setup-osx.sh'
     displayName: Setup
   - template: bash.yml
     parameters:
@@ -94,7 +94,7 @@ jobs:
   displayName: 'Windows (amd64; MinGW)'
   pool: Hosted
   steps:
-  - powershell: . '$(Build.SourcesDirectory)\ci\setup-mingw.ps1'
+  - powershell: . '$(Build.SourcesDirectory)\azure-pipelines\setup-mingw.ps1'
     displayName: Setup
     env:
       TEMP: $(Agent.TempDirectory)
@@ -110,7 +110,7 @@ jobs:
   displayName: 'Windows (x86; MinGW)'
   pool: Hosted
   steps:
-  - powershell: . '$(Build.SourcesDirectory)\ci\setup-mingw.ps1'
+  - powershell: . '$(Build.SourcesDirectory)\azure-pipelines\setup-mingw.ps1'
     displayName: Setup
     workingDirectory: '$(Build.BinariesDirectory)'
     env:

azure-pipelines/powershell.yml

 # These are the steps used for building on machines with PowerShell.
 steps:
-- powershell: . '$(Build.SourcesDirectory)\ci\build.ps1'
+- powershell: . '$(Build.SourcesDirectory)\azure-pipelines\build.ps1'
   displayName: Build
   workingDirectory: '$(Build.BinariesDirectory)'
   env: ${{ parameters.environmentVariables }}
-- powershell: . '$(Build.SourcesDirectory)\ci\test.ps1'
+- powershell: . '$(Build.SourcesDirectory)\azure-pipelines\test.ps1'
   displayName: Test
   workingDirectory: '$(Build.BinariesDirectory)'
   env: ${{ parameters.environmentVariables }}