pw_watch: Don't search for build dirs; run gn gen if needed

- No longer search for a build.ninja file because sometimes this finds a
  random build.ninja in a presubmit directory. Instead, default to out/
  for the build directory if none is specified.
- Automatically run `gn gen` if a build directory is missing a
  build.ninja file.

Change-Id: Ib53c5f20464b9782f48ebf6ab0d01f035678d34f
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/60560
Pigweed-Auto-Submit: Wyatt Hepler <hepler@google.com>
Commit-Queue: Auto-Submit <auto-submit@pigweed.google.com.iam.gserviceaccount.com>
Reviewed-by: Keir Mierle <keir@google.com>
2 files changed
tree: 93d87c27ed383ac741d253e8e3d4776281be73e5
  1. build_overrides/
  2. docker/
  3. docs/
  4. pw_allocator/
  5. pw_analog/
  6. pw_android_toolchain/
  7. pw_arduino_build/
  8. pw_assert/
  9. pw_assert_basic/
  10. pw_assert_log/
  11. pw_base64/
  12. pw_bloat/
  13. pw_blob_store/
  14. pw_bluetooth_hci/
  15. pw_boot/
  16. pw_boot_cortex_m/
  17. pw_build/
  18. pw_build_info/
  19. pw_bytes/
  20. pw_checksum/
  21. pw_chrono/
  22. pw_chrono_embos/
  23. pw_chrono_freertos/
  24. pw_chrono_stl/
  25. pw_chrono_threadx/
  26. pw_cli/
  27. pw_console/
  28. pw_containers/
  29. pw_cpu_exception/
  30. pw_cpu_exception_cortex_m/
  31. pw_crypto/
  32. pw_docgen/
  33. pw_doctor/
  34. pw_env_setup/
  35. pw_file/
  36. pw_function/
  37. pw_fuzzer/
  38. pw_hdlc/
  39. pw_hex_dump/
  40. pw_i2c/
  41. pw_interrupt/
  42. pw_interrupt_cortex_m/
  43. pw_kvs/
  44. pw_libc/
  45. pw_log/
  46. pw_log_basic/
  47. pw_log_null/
  48. pw_log_rpc/
  49. pw_log_tokenized/
  50. pw_malloc/
  51. pw_malloc_freelist/
  52. pw_metric/
  53. pw_minimal_cpp_stdlib/
  54. pw_module/
  55. pw_multisink/
  56. pw_package/
  57. pw_persistent_ram/
  58. pw_polyfill/
  59. pw_preprocessor/
  60. pw_presubmit/
  61. pw_protobuf/
  62. pw_protobuf_compiler/
  63. pw_random/
  64. pw_result/
  65. pw_ring_buffer/
  66. pw_router/
  67. pw_rpc/
  68. pw_snapshot/
  69. pw_software_update/
  70. pw_span/
  71. pw_status/
  72. pw_stm32cube_build/
  73. pw_stream/
  74. pw_string/
  75. pw_symbolizer/
  76. pw_sync/
  77. pw_sync_baremetal/
  78. pw_sync_embos/
  79. pw_sync_freertos/
  80. pw_sync_stl/
  81. pw_sync_threadx/
  82. pw_sys_io/
  83. pw_sys_io_arduino/
  84. pw_sys_io_baremetal_lm3s6965evb/
  85. pw_sys_io_baremetal_stm32f429/
  86. pw_sys_io_stdio/
  87. pw_target_runner/
  88. pw_thread/
  89. pw_thread_embos/
  90. pw_thread_freertos/
  91. pw_thread_stl/
  92. pw_thread_threadx/
  93. pw_tls_client/
  94. pw_tls_client_boringssl/
  95. pw_tls_client_mbedtls/
  96. pw_tokenizer/
  97. pw_tool/
  98. pw_toolchain/
  99. pw_trace/
  100. pw_trace_tokenized/
  101. pw_transfer/
  102. pw_unit_test/
  103. pw_varint/
  104. pw_watch/
  105. pw_web_ui/
  106. pw_work_queue/
  107. targets/
  108. third_party/
  109. .bazelignore
  110. .bazelrc
  111. .clang-format
  112. .clang-tidy
  113. .eslintrc.json
  114. .gitattributes
  115. .gitignore
  116. .gn
  117. .prettierrc.js
  118. .pylintrc
  119. activate.bat
  120. AUTHORS
  121. bootstrap.bat
  122. bootstrap.sh
  123. BUILD.bazel
  124. BUILD.gn
  125. BUILDCONFIG.gn
  126. CMakeLists.txt
  127. LICENSE
  128. modules.gni
  129. OWNERS
  130. package.json
  131. PW_PLUGINS
  132. README.md
  133. tsconfig.json
  134. WORKSPACE
  135. yarn.lock
README.md

See our website: http://pigweed.dev