pw_env_setup: Skip unset on some vars in deactivate

Skip unsetting some variables in deactivate, like PW_ROOT,
PW_PROJECT_ROOT, and the project-defined root variable.

Change-Id: I3e84fa3e50b2abc8f417aca8785ae0683fccd91d
Reviewed-on: https://pigweed-review.googlesource.com/c/pigweed/pigweed/+/51760
Reviewed-by: Keir Mierle <keir@google.com>
Commit-Queue: Rob Mohr <mohrr@google.com>
3 files changed
tree: 58291dc9a87511a642cc39341eaed71b91afeb4b
  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_console/
  24. pw_containers/
  25. pw_cpu_exception/
  26. pw_cpu_exception_cortex_m/
  27. pw_docgen/
  28. pw_doctor/
  29. pw_env_setup/
  30. pw_function/
  31. pw_fuzzer/
  32. pw_hdlc/
  33. pw_hex_dump/
  34. pw_i2c/
  35. pw_interrupt/
  36. pw_interrupt_cortex_m/
  37. pw_kvs/
  38. pw_libc/
  39. pw_log/
  40. pw_log_basic/
  41. pw_log_multisink/
  42. pw_log_null/
  43. pw_log_rpc/
  44. pw_log_sink/
  45. pw_log_tokenized/
  46. pw_malloc/
  47. pw_malloc_freelist/
  48. pw_metric/
  49. pw_minimal_cpp_stdlib/
  50. pw_module/
  51. pw_multisink/
  52. pw_package/
  53. pw_persistent_ram/
  54. pw_polyfill/
  55. pw_preprocessor/
  56. pw_presubmit/
  57. pw_protobuf/
  58. pw_protobuf_compiler/
  59. pw_random/
  60. pw_result/
  61. pw_ring_buffer/
  62. pw_router/
  63. pw_rpc/
  64. pw_snapshot/
  65. pw_span/
  66. pw_status/
  67. pw_stm32cube_build/
  68. pw_stream/
  69. pw_string/
  70. pw_sync/
  71. pw_sync_baremetal/
  72. pw_sync_embos/
  73. pw_sync_freertos/
  74. pw_sync_stl/
  75. pw_sync_threadx/
  76. pw_sys_io/
  77. pw_sys_io_arduino/
  78. pw_sys_io_baremetal_lm3s6965evb/
  79. pw_sys_io_baremetal_stm32f429/
  80. pw_sys_io_stdio/
  81. pw_target_runner/
  82. pw_thread/
  83. pw_thread_embos/
  84. pw_thread_freertos/
  85. pw_thread_stl/
  86. pw_thread_threadx/
  87. pw_tls_client/
  88. pw_tls_client_mbedtls/
  89. pw_tokenizer/
  90. pw_tool/
  91. pw_toolchain/
  92. pw_trace/
  93. pw_trace_tokenized/
  94. pw_transfer/
  95. pw_unit_test/
  96. pw_varint/
  97. pw_watch/
  98. pw_web_ui/
  99. targets/
  100. third_party/
  101. .bazelignore
  102. .bazelrc
  103. .clang-format
  104. .eslintrc.json
  105. .gitattributes
  106. .gitignore
  107. .gn
  108. .prettierrc.js
  109. .pylintrc
  110. activate.bat
  111. AUTHORS
  112. bootstrap.bat
  113. bootstrap.sh
  114. BUILD
  115. BUILD.gn
  116. BUILDCONFIG.gn
  117. CMakeLists.txt
  118. LICENSE
  119. modules.gni
  120. OWNERS
  121. package.json
  122. PW_PLUGINS
  123. README.md
  124. tsconfig.json
  125. WORKSPACE
  126. yarn.lock
README.md

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