This change automates one of the best practices for
custom tools. The best practice says "Prefer to list
input files on the command line, otherwise we may not
know to re-run your command when a new input file is
added." [1]
Normally you'd reference these inputs with $(in) or
one of the forms of the $(location*) substituions on
the command line for the custom tool. However, if the
custom tool does not accept the list of inputs on the
command line, the build system could fail to re-run
the custom tool if the list changes.
This change adds a hash of the list of input names to
the sbox command that wraps the custom tool. If the
list of inputs change, the hash will change, and
therefore the sbox command will change, causing ninja
to re-run the custom tool. The hash is visible to
(but ignored by) the sbox command, and hidden from
your custom tool.
[1] https://android.googlesource.com/platform/build/soong/+/refs/heads/master/docs/best_practices.md#custom-build-tools
Test: TestGenruleHashInputs
Bug: 149397658
Change-Id: I18b547ea3c4296ee15bd6150a4778a8f376d80b7
sbox will generate a random directory for the output root, and most
tools will encode that directory name in the output target of the
depfile.
So embed the library from dep_fixer into sbox so that it can rewrite the
output filename to a static (reproducible) value. Ninja doesn't care
what that value is, so it's just "outputfile".
Also fix up rule_builder to actually tell sbox about the depfile.
Test: mmma system/iorap; check the contents of:
out/soong/.intermediates/system/iorap/libiorap-binder/android_arm_armv7-a-neon_core_static/gen/aidl/system/iorap/binder/com/google/android/startop/iorap/IIorap.cpp.d
Change-Id: I3640a2e8b0c034f143a35e398a8418a6d621b265
This essentially allows you to declare that everything in a directory
will be created by the rule, and we'll ensure that your command actually
writes out all of the claimed outputs, and remove any other files that
previously existed in that directory.
Test: built-in tests
Change-Id: I990dce2b3a0d89ebd2736ac1a0cadfb5864c6e73
Some tools used by genrules set the timestamp of the generated file
to an old value. For example, when using tar to extract files it
will set the timestamp of the extracted file to the value stored in
the tar file. This can cause unnecessary rebuilds due to output files
that are older than their inputs. Touch output files in sbox before
moving them into the output location.
Test: m checkbuild && m checkbuild
Change-Id: Idb0e71d2bf0ac3618338371132cc71be74bf9d9d
The path to the output directory may be arbitrarily long, use
__SBOX_OUT_DIR__ in the list of output files passed to sbox
to avoid expanding it multiple times in the command line.
Fixes:
ninja: fatal: posix_spawn: Argument list too long
09:40:14 ninja failed with: exit status 1
when building libchrome with a long OUT or OUT_DIR_COMMON_BASE.
Bug: 73726635
Test: m checkbuild
Change-Id: I59024b2164287c8e531711afd9273b692ce9c28a
which should make debugging faster.
Bug: 66921582
Test: ./out/soong/host/linux-x86/bin/sbox --output-root outs --sandbox-path out/.temp/sbox-work -c "cd __SBOX_OUT_DIR__ && mkdir asubdir && mkdir b && touch asubdir/child a b c d e f g h i j k l m n o p" outs/a outs/b outs/z # and observe the below output:
mismatch between declared and actual outputs
in sbox command(cd out/.temp/sbox-work/sbox343858828 && mkdir asubdir && mkdir b && touch asubdir/child a b c d e f g h i j k l m n o p)
in sandbox out/.temp/sbox-work/sbox343858828,
failed to create 2 files:
b: not a file
z: does not exist
did create 16 files:
a
asubdir/child
c
d
e
f
g
h
i
j
...6 more
Change-Id: I75e37834c44d4279dec874701d67ce8bb01b872c
Also removeTempDir -> !keepOutDir
Also shorten the help comment
Bug: 68336760
Test: rm out -rf && m -j
Test: sbox -c # and observe that the output does not have a stacktrace
Change-Id: I6fbb385132128ab1273c8398ff2425191049751e
Most notably, the sandbox depfile path should be passed into the tool.
Bug: 68336760
Test: m -j checkbuild
Change-Id: I22f944a3f57d613fda26de0ea777a915cafcd020
Cleanup of some failure messages
Also, this leaves the temp directory untouched if a declared output was not created
Bug: 35562758
Test: make
Change-Id: I8ef1315af80eb327752501f12a331dbdf52ba3e9
This causes Soong to put the outputs of each genrule into a temporary
location and copy the declared outputs back to the output directory.
This gets the process closer to having an actual sandbox.
Bug: 35562758
Test: make
Change-Id: I8048fbf1a3899a86fb99d71b60669b6633b07b3e
Bill Peckham