pw_build: Add support for --constraint options to pip

Using this with exact versions of all dependencies should result in a
deterministic python setup.

Unlike --requirement, this option does not install any packages. This
means we can ensure the desired versions will be installed without
installing everything immediately, and also means that dependencies of
conditionally installed packages do not get unconditionally installed.

Change-Id: I649ced04f46b92ed2d63a0fb664c8b9f0742db07
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/48522
Reviewed-by: Keir Mierle <keir@google.com>
Reviewed-by: Wyatt Hepler <hepler@google.com>
Commit-Queue: Michael Spang <spang@google.com>
2 files changed
tree: bfe2334b42758acb80a774405db1ec70ab28d9b2
  1. build_overrides/
  2. docker/
  3. docs/
  4. pw_allocator/
  5. pw_analog/
  6. pw_arduino_build/
  7. pw_assert/
  8. pw_assert_basic/
  9. pw_assert_log/
  10. pw_base64/
  11. pw_bloat/
  12. pw_blob_store/
  13. pw_boot_armv7m/
  14. pw_build/
  15. pw_bytes/
  16. pw_checksum/
  17. pw_chrono/
  18. pw_chrono_embos/
  19. pw_chrono_freertos/
  20. pw_chrono_stl/
  21. pw_chrono_threadx/
  22. pw_cli/
  23. pw_containers/
  24. pw_cpu_exception/
  25. pw_cpu_exception_cortex_m/
  26. pw_docgen/
  27. pw_doctor/
  28. pw_env_setup/
  29. pw_function/
  30. pw_fuzzer/
  31. pw_hdlc/
  32. pw_hex_dump/
  33. pw_i2c/
  34. pw_interrupt/
  35. pw_interrupt_cortex_m/
  36. pw_kvs/
  37. pw_libc/
  38. pw_log/
  39. pw_log_basic/
  40. pw_log_multisink/
  41. pw_log_null/
  42. pw_log_rpc/
  43. pw_log_sink/
  44. pw_log_tokenized/
  45. pw_malloc/
  46. pw_malloc_freelist/
  47. pw_metric/
  48. pw_minimal_cpp_stdlib/
  49. pw_module/
  50. pw_multisink/
  51. pw_package/
  52. pw_persistent_ram/
  53. pw_polyfill/
  54. pw_preprocessor/
  55. pw_presubmit/
  56. pw_protobuf/
  57. pw_protobuf_compiler/
  58. pw_random/
  59. pw_result/
  60. pw_ring_buffer/
  61. pw_router/
  62. pw_rpc/
  63. pw_snapshot/
  64. pw_span/
  65. pw_status/
  66. pw_stm32cube_build/
  67. pw_stream/
  68. pw_string/
  69. pw_sync/
  70. pw_sync_baremetal/
  71. pw_sync_embos/
  72. pw_sync_freertos/
  73. pw_sync_stl/
  74. pw_sync_threadx/
  75. pw_sys_io/
  76. pw_sys_io_arduino/
  77. pw_sys_io_baremetal_lm3s6965evb/
  78. pw_sys_io_baremetal_stm32f429/
  79. pw_sys_io_stdio/
  80. pw_target_runner/
  81. pw_thread/
  82. pw_thread_embos/
  83. pw_thread_freertos/
  84. pw_thread_stl/
  85. pw_thread_threadx/
  86. pw_tokenizer/
  87. pw_tool/
  88. pw_toolchain/
  89. pw_trace/
  90. pw_trace_tokenized/
  91. pw_unit_test/
  92. pw_varint/
  93. pw_watch/
  94. pw_web_ui/
  95. targets/
  96. third_party/
  97. .bazelignore
  98. .bazelrc
  99. .clang-format
  100. .eslintrc.json
  101. .gitattributes
  102. .gitignore
  103. .gn
  104. .prettierrc.js
  105. .pylintrc
  106. activate.bat
  107. AUTHORS
  108. bootstrap.bat
  109. bootstrap.sh
  110. BUILD
  111. BUILD.gn
  112. BUILDCONFIG.gn
  113. CMakeLists.txt
  114. LICENSE
  115. modules.gni
  116. OWNERS
  117. package.json
  118. PW_PLUGINS
  119. README.md
  120. tsconfig.json
  121. WORKSPACE
  122. yarn.lock
README.md

See our website: http://pigweed.dev