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build: turn warnings into errors for node sources #32685

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5e3988d
build: turn warnings into errors for node sources
danbev Apr 6, 2020
2379516
tools: fix redundant-move warning in inspector
danbev Apr 6, 2020
b9fa8f3
build: add --error-on-warn configure flag
danbev Apr 17, 2020
1d0456c
squash: remove -Werror when error_on_warn is false
danbev Apr 24, 2020
9890e67
squash: set error_on_warn to false instead of 0
danbev Apr 24, 2020
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build: add --error-on-warn configure flag 
This commit adds a configuration time flag named error-on-warn:
$ ./configure --help | grep -A1 error-on-warn
  --error-on-warn       Turn compiler warnings into errors for node core
                        sources.

The motivation for this is that CI jobs can use this flag to turn
warnings into errors.
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@danbev
danbev committed Apr 17, 2020
commit b9fa8f3cade7c45fd8091142b8e55711a369c89d
6 changes: 4 additions & 2 deletions common.gypi
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@
'uv_library%': 'static_library',

'clang%': 0,
'error_on_warn%': '0',

'openssl_fips%': '',
'openssl_no_asm%': 0,
Expand Down Expand Up @@ -219,8 +220,9 @@
# simply not feasible to squelch all warnings, never mind that the
# libraries in deps/ are not under our control.
'conditions': [
['_target_name!="<(node_lib_target_name)" or '
'_target_name!="<(node_core_target_name)"', {
[ 'error_on_warn=="true" and '
'(_target_name!="<(node_lib_target_name)" or '
'_target_name!="<(node_core_target_name)")', {
'cflags!': ['-Werror'],
}],
],
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6 changes: 6 additions & 0 deletions configure.py
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Expand Up @@ -117,6 +117,11 @@
choices=valid_os,
help='operating system to build for ({0})'.format(', '.join(valid_os)))

parser.add_option('--error-on-warn',
action='store_true',
dest='error_on_warn',
help='Turn compiler warnings into errors for node core sources.')
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@jasnell jasnell Apr 24, 2020

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Would be great to have this in the Windows vcbuild.bat also.

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@danbev danbev Apr 27, 2020

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Yeah, I agree. The problem for me is that I don't have a windows testing environment anymore. At least if this got merged we could enable this for pull requests.


parser.add_option('--gdb',
action='store_true',
dest='gdb',
Expand Down Expand Up @@ -1018,6 +1023,7 @@ def configure_node(o):
o['variables']['node_install_npm'] = b(not options.without_npm)
o['variables']['debug_node'] = b(options.debug_node)
o['default_configuration'] = 'Debug' if options.debug else 'Release'
o['variables']['error_on_warn'] = b(options.error_on_warn)

host_arch = host_arch_win() if os.name == 'nt' else host_arch_cc()
target_arch = options.dest_cpu or host_arch
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10 changes: 6 additions & 4 deletions node.gyp
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Expand Up @@ -346,8 +346,6 @@
'node.gypi'
],

'cflags': [ '-Werror', ],

'include_dirs': [
'src',
'deps/v8/include'
Expand Down Expand Up @@ -377,6 +375,9 @@
'msvs_disabled_warnings!': [4244],

'conditions': [
[ 'error_on_warn=="true"', {
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'cflags': ['-Werror'],
}],
[ 'node_intermediate_lib_type=="static_library" and '
'node_shared=="true" and OS=="aix"', {
# For AIX, shared lib is linked by static lib and .exp. In the
Expand Down Expand Up @@ -530,8 +531,6 @@
'node.gypi',
],

'cflags': [ '-Werror', ],

'include_dirs': [
'src',
'<(SHARED_INTERMEDIATE_DIR)' # for node_natives.h
Expand Down Expand Up @@ -753,6 +752,9 @@
'msvs_disabled_warnings!': [4244],

'conditions': [
[ 'error_on_warn=="true"', {
'cflags': ['-Werror'],
}],
[ 'node_builtin_modules_path!=""', {
'defines': [ 'NODE_BUILTIN_MODULES_PATH="<(node_builtin_modules_path)"' ]
}],
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