[CT] Operate V8 checkout in detached HEAD and no longer retry gclient sync.

The V8 checkout was always giving problems which is why it was the only
one that used to do "git reset --hard origin/master". I found
https://bugs.chromium.org/p/chromium/issues/detail?id=584742#c8
which explains some of the V8 problems. Trying it out in detached HEAD
mode.

Also, stop deleting checkouts and retrying gclient sync. It is very time
consuming and ends up masking some problems that could be solved in a
better way. Eg: V8.

Bug: skia:5761
Change-Id: I15395fce1041d1b01fd23f350ce0d3a083685487
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/235202
Reviewed-by: Ravi Mistry <rmistry@google.com>
Commit-Queue: Ravi Mistry <rmistry@google.com>
3 files changed
tree: 772c2f3429c0a1e58332061171b4198a7c513890
  1. am/
  2. android_compile/
  3. android_ingest/
  4. android_stats/
  5. api/
  6. appengine_scripts/
  7. autoroll/
  8. bash/
  9. blamer/
  10. chromeextensions/
  11. cmd/
  12. comments/
  13. common-sk/
  14. contestk/
  15. cq_watcher/
  16. ct/
  17. datahopper/
  18. debugger/
  19. debugger-assets/
  20. docker/
  21. docserverk/
  22. ds/
  23. fiddlek/
  24. firestore/
  25. fuzzer/
  26. get_service_account/
  27. git_cookie_authdaemon/
  28. gitsync/
  29. go/
  30. gold-client/
  31. golden/
  32. grafana/
  33. html-template-minifier/
  34. infra/
  35. infra-sk/
  36. jsdoc/
  37. jsfiddle/
  38. k8s_checker/
  39. kube/
  40. leasing/
  41. licenses/
  42. logmetrics/
  43. make/
  44. monitoring/
  45. named-fiddles/
  46. notifier/
  47. particles/
  48. perdiff/
  49. perf/
  50. periodic-trigger/
  51. power/
  52. prober/
  53. proberk/
  54. prometheus/
  55. promk/
  56. proxy/
  57. pulld/
  58. push/
  59. res/
  60. scripts/
  61. sheriff_emails/
  62. skfe/
  63. skolo/
  64. skottie/
  65. status/
  66. task_driver/
  67. task_scheduler/
  68. tools/
  69. velero/
  70. webtools/
  71. .gitattributes
  72. .gitignore
  73. build_infra_prod.sh
  74. codereview.settings
  75. DATASTORE.md
  76. DEPS
  77. go.mod
  78. go.sum
  79. launch.md
  80. LICENSE
  81. Makefile
  82. PRESUBMIT.py
  83. PRIVACY_POLICY.md
  84. README.md
  85. run_unittests
  86. run_unittests.go
  87. STYLEGUIDE.md
  88. whitespace.txt
README.md

Skia-Buildbot Repository

This repo contains infrastructure code for Skia.

Getting the Source Code

The main source code repository is a Git repository hosted at https://skia.googlesource.com/buildbot.git. It is possible to check out this repository directly with git clone or via go get.

Using git clone allows you to work in whatever directory you want. You will still need to set GOPATH in order to build some apps (recommended to put this in a cache dir). E.g.:

$ cd ${WORKDIR}
$ git clone https://skia.googlesource.com/buildbot.git
$ export GOPATH=${HOME}/.cache/gopath/$(basename ${WORKDIR})
$ mkdir $GOPATH
$ cd buildbot

Using go get will fetch the repository into your GOPATH directory along with all the Go dependencies. You will need to set GOPATH and GO111MODULE=on. E.g.:

$ export GOPATH=${WORKDIR}
$ export GO111MODULE=on
$ go get -u -t go.skia.org/infra/...
$ cd ${GOPATH}/src/go.skia.org/infra/

Note: go.skia.org is a custom import path and will only work if used like the examples here.

Install Node.js (not as root) and add the bin dir to your path. Optionally run npm install npm -g, as suggested by the npm getting started doc.

Install other dependencies:

$ sudo apt-get install python-django
$ go get -u github.com/kisielk/errcheck \
  golang.org/x/tools/cmd/goimports \
  go.chromium.org/luci/client/cmd/isolate
$ npm install -g polylint bower

Build ~everything:

$ make all

Generated Code

Some code is generated using go generate with external binaries. First, install the version of protoc referenced in the asset creation script and ensure it is on your PATH before other versions of protoc.

Install the necessary go packages:

$ go get -u \
  github.com/golang/protobuf/protoc-gen-go \
  golang.org/x/tools/cmd/stringer \
  google.golang.org/grpc \
  github.com/vektra/mockery/...

To generate code run in this directory:

$ go generate ./...

Running unit tests

Install Cloud SDK.

Use this command to run the presubmit tests:

$ ./run_unittests --small