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-rw-r--r--docs/markdown/Reference-manual.md3
-rw-r--r--docs/markdown/Release-notes-for-0.43.0/001-generator-capture.md4
-rw-r--r--mesonbuild/backend/ninjabackend.py15
-rw-r--r--mesonbuild/backend/vs2010backend.py10
-rw-r--r--mesonbuild/build.py6
-rw-r--r--mesonbuild/interpreter.py2
-rw-r--r--test cases/common/98 gen extra/meson.build10
-rw-r--r--test cases/common/98 gen extra/srcgen3.py16
8 files changed, 64 insertions, 2 deletions
diff --git a/docs/markdown/Reference-manual.md b/docs/markdown/Reference-manual.md
index c3636b8..f37fb34 100644
--- a/docs/markdown/Reference-manual.md
+++ b/docs/markdown/Reference-manual.md
@@ -554,6 +554,9 @@ following:
- `output` a template string (or list of template strings) defining
how an output file name is (or multiple output names are) generated
from a single source file name
+- `capture` when this argument is set to true, Meson captures `stdout`
+ of the `executable` and writes it to the target file specified as
+ `output`. Available since v0.43.0.
The returned object also has methods that are documented in the
[object methods section](#generator-object) below.
diff --git a/docs/markdown/Release-notes-for-0.43.0/001-generator-capture.md b/docs/markdown/Release-notes-for-0.43.0/001-generator-capture.md
new file mode 100644
index 0000000..4eb7fc0
--- /dev/null
+++ b/docs/markdown/Release-notes-for-0.43.0/001-generator-capture.md
@@ -0,0 +1,4 @@
+## Generator learned capture
+
+Generators can now be configured to capture the standard output. See
+`test cases/common/98 gen extra/meson.build` for an example.
diff --git a/mesonbuild/backend/ninjabackend.py b/mesonbuild/backend/ninjabackend.py
index d2ba49f..2e6e351 100644
--- a/mesonbuild/backend/ninjabackend.py
+++ b/mesonbuild/backend/ninjabackend.py
@@ -1814,6 +1814,19 @@ rule FORTRAN_DEP_HACK
relout = self.get_target_private_dir(target)
args = self.replace_paths(target, args)
cmdlist = exe_arr + self.replace_extra_args(args, genlist)
+ if generator.capture:
+ exe_data = self.serialize_executable(
+ cmdlist[0],
+ cmdlist[1:],
+ self.environment.get_build_dir(),
+ capture=outfiles[0]
+ )
+ cmd = self.environment.get_build_command() + ['--internal', 'exe', exe_data]
+ abs_pdir = os.path.join(self.environment.get_build_dir(), self.get_target_dir(target))
+ os.makedirs(abs_pdir, exist_ok=True)
+ else:
+ cmd = cmdlist
+
elem = NinjaBuildElement(self.all_outputs, outfiles, rulename, infilename)
if generator.depfile is not None:
elem.add_item('DEPFILE', depfile)
@@ -1822,7 +1835,7 @@ rule FORTRAN_DEP_HACK
elem.add_item('DESC', 'Generating {!r}.'.format(sole_output))
if isinstance(exe, build.BuildTarget):
elem.add_dep(self.get_target_filename(exe))
- elem.add_item('COMMAND', cmdlist)
+ elem.add_item('COMMAND', cmd)
elem.write(outfile)
def scan_fortran_module_outputs(self, target):
diff --git a/mesonbuild/backend/vs2010backend.py b/mesonbuild/backend/vs2010backend.py
index cb8dad6..2d18b0e 100644
--- a/mesonbuild/backend/vs2010backend.py
+++ b/mesonbuild/backend/vs2010backend.py
@@ -128,6 +128,16 @@ class Vs2010Backend(backends.Backend):
.replace("@BUILD_ROOT@", self.environment.get_build_dir())
for x in args]
cmd = exe_arr + self.replace_extra_args(args, genlist)
+ if generator.capture:
+ exe_data = self.serialize_executable(
+ cmd[0],
+ cmd[1:],
+ self.environment.get_build_dir(),
+ capture=outfiles[0]
+ )
+ cmd = self.environment.get_build_command() + ['--internal', 'exe', exe_data]
+ abs_pdir = os.path.join(self.environment.get_build_dir(), self.get_target_dir(target))
+ os.makedirs(abs_pdir, exist_ok=True)
cbs = ET.SubElement(idgroup, 'CustomBuild', Include=infilename)
ET.SubElement(cbs, 'Command').text = ' '.join(self.quote_arguments(cmd))
ET.SubElement(cbs, 'Outputs').text = ';'.join(outfiles)
diff --git a/mesonbuild/build.py b/mesonbuild/build.py
index d3c0b54..8c02d1d 100644
--- a/mesonbuild/build.py
+++ b/mesonbuild/build.py
@@ -1019,6 +1019,7 @@ class Generator:
raise InvalidArguments('First generator argument must be an executable.')
self.exe = exe
self.depfile = None
+ self.capture = False
self.process_kwargs(kwargs)
def __repr__(self):
@@ -1062,6 +1063,11 @@ class Generator:
if os.path.split(depfile)[1] != depfile:
raise InvalidArguments('Depfile must be a plain filename without a subdirectory.')
self.depfile = depfile
+ if 'capture' in kwargs:
+ capture = kwargs['capture']
+ if not isinstance(capture, bool):
+ raise InvalidArguments('Capture must be boolean.')
+ self.capture = capture
def get_base_outnames(self, inname):
plainname = os.path.split(inname)[1]
diff --git a/mesonbuild/interpreter.py b/mesonbuild/interpreter.py
index 012370d..8197b5e 100644
--- a/mesonbuild/interpreter.py
+++ b/mesonbuild/interpreter.py
@@ -1335,7 +1335,7 @@ permitted_kwargs = {'add_global_arguments': {'language'},
'declare_dependency': {'include_directories', 'link_with', 'sources', 'dependencies', 'compile_args', 'link_args', 'version'},
'executable': exe_kwargs,
'find_program': {'required', 'native'},
- 'generator': {'arguments', 'output', 'depfile'},
+ 'generator': {'arguments', 'output', 'depfile', 'capture'},
'include_directories': {'is_system'},
'install_data': {'install_dir', 'install_mode', 'sources'},
'install_headers': {'install_dir', 'subdir'},
diff --git a/test cases/common/98 gen extra/meson.build b/test cases/common/98 gen extra/meson.build
index 772f52e..cbbdceb 100644
--- a/test cases/common/98 gen extra/meson.build
+++ b/test cases/common/98 gen extra/meson.build
@@ -28,3 +28,13 @@ plainname_gen = generator(prog2,
plainname_src = plainname_gen.process('name.l')
test('plainname', executable('plainname', plainname_src))
+
+prog3 = find_program('srcgen3.py')
+capture_gen = generator(prog3,
+ output : ['@BASENAME@.yy.c'],
+ arguments : ['@INPUT@'],
+ capture : true)
+
+capture_src = capture_gen.process('name.l')
+
+test('capture', executable('capture', capture_src))
diff --git a/test cases/common/98 gen extra/srcgen3.py b/test cases/common/98 gen extra/srcgen3.py
new file mode 100644
index 0000000..ad0a5cb
--- /dev/null
+++ b/test cases/common/98 gen extra/srcgen3.py
@@ -0,0 +1,16 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import argparse
+
+parser = argparse.ArgumentParser()
+parser.add_argument('input',
+ help='the input file')
+
+options = parser.parse_args(sys.argv[1:])
+
+with open(options.input) as f:
+ content = f.read().strip()
+
+print(content)