Be more resilient to directories disappearing during startup

In multiproduct_build, we run a lot of kati instances in the same source
tree, but pointing to different out folders. I'm removing the out
folders of successful runs so that too much disk space isn't used
(unless the user requests it). But I often see a kati PERROR about
opendir failing, since it's trying to set up the find emulator while a
different configuration's output directory is being removed.

This was also hit by #109 in similar circumstances.
1 file changed
tree: cb02733522afc9287d01242fe93bdfc30e9fa423
  1. cmd/
  2. make-c/
  3. testcase/
  4. .gitignore
  5. .travis.yml
  6. affinity.cc
  7. affinity.h
  8. Android.bp
  9. ast.go
  10. AUTHORS
  11. bootstrap.go
  12. buf.go
  13. buf_test.go
  14. command.cc
  15. command.h
  16. CONTRIBUTING.md
  17. CONTRIBUTORS
  18. dep.cc
  19. dep.go
  20. dep.h
  21. depgraph.go
  22. doc.go
  23. eval.cc
  24. eval.go
  25. eval.h
  26. evalcmd.go
  27. exec.cc
  28. exec.go
  29. exec.h
  30. expr.cc
  31. expr.go
  32. expr.h
  33. expr_test.go
  34. file.cc
  35. file.h
  36. file_cache.cc
  37. file_cache.h
  38. fileutil.cc
  39. fileutil.go
  40. fileutil.h
  41. fileutil_bench.cc
  42. find.cc
  43. find.h
  44. find_test.cc
  45. flags.cc
  46. flags.go
  47. flags.h
  48. func.cc
  49. func.go
  50. func.h
  51. func_test.go
  52. INTERNALS.md
  53. io.cc
  54. io.h
  55. LICENSE
  56. loc.h
  57. log.cc
  58. log.go
  59. log.h
  60. m2n
  61. main.cc
  62. make-c.sh
  63. Makefile
  64. Makefile.ckati
  65. Makefile.kati
  66. ninja.cc
  67. ninja.go
  68. ninja.h
  69. ninja_test.cc
  70. ninja_test.go
  71. pack.sh
  72. parser.cc
  73. parser.go
  74. parser.h
  75. pathutil.go
  76. pathutil_test.go
  77. query.go
  78. README.md
  79. regen.cc
  80. regen.h
  81. regen_dump.cc
  82. rule.cc
  83. rule.h
  84. rule_parser.go
  85. rule_parser_test.go
  86. runtest.rb
  87. serialize.go
  88. shellutil.go
  89. shellutil_test.go
  90. stats.cc
  91. stats.go
  92. stats.h
  93. stmt.cc
  94. stmt.h
  95. string_piece.cc
  96. string_piece.h
  97. string_piece_test.cc
  98. stringprintf.cc
  99. stringprintf.h
  100. strutil.cc
  101. strutil.go
  102. strutil.h
  103. strutil_bench.cc
  104. strutil_test.cc
  105. strutil_test.go
  106. symtab.cc
  107. symtab.go
  108. symtab.h
  109. testutil.h
  110. thread_local.h
  111. thread_pool.cc
  112. thread_pool.h
  113. timeutil.cc
  114. timeutil.h
  115. var.cc
  116. var.go
  117. var.h
  118. version.go
  119. version.h
  120. version_unknown.cc
  121. worker.go
README.md

kati

Build Status

kati is an experimental GNU make clone. The main goal of this tool is to speed-up incremental build of Android.

Currently, kati does not offer a faster build by itself. It instead converts your Makefile to a ninja file.

How to use for Android

Now AOSP has kati and ninja, so all you have to do is

% export USE_NINJA=true

All Android's build commands (m, mmm, mmma, etc.) should just work.

How to use for Android (deprecated way)

Set up kati:

% cd ~/src
% git clone https://github.com/google/kati
% cd kati
% make

Build Android:

% cd <android-directory>
% source build/envsetup.sh
% lunch <your-choice>
% ~/src/kati/m2n --kati_stats  # Use --goma if you are a Googler.
% ./ninja.sh

You need ninja in your $PATH.

More usage examples (deprecated way)

"make clean"

% ./ninja.sh -t clean

Note ./ninja.sh passes all parameters to ninja.

Build a specific target

For example, the following is equivalent to "make cts":

% ./ninja.sh cts

Or, if you know the path you want, you can do:

% ./ninja.sh out/host/linux-x86/bin/adb