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debug: respect configured build tags/flags #1790

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debug: respect configured build tags/flags #1790

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59 changes: 0 additions & 59 deletions src/goDebugConfiguration.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -220,28 +220,6 @@ export class GoDebugConfigurationProvider implements vscode.DebugConfigurationPr
debugConfiguration['cwd'] = resolveHomeDir(debugConfiguration['cwd']);
}

// Remove any '--gcflags' entries and show a warning
if (debugConfiguration['buildFlags']) {
const resp = this.removeGcflags(debugConfiguration['buildFlags']);
if (resp.removed) {
debugConfiguration['buildFlags'] = resp.args;
this.showWarning(
'ignoreDebugGCFlagsWarning',
"User specified build flag '--gcflags' in 'buildFlags' is being ignored (see [debugging with build flags](https://github.com/golang/vscode-go/blob/master/docs/debugging.md#specifying-other-build-flags) documentation)"
);
}
}
if (debugConfiguration['env'] && debugConfiguration['env']['GOFLAGS']) {
const resp = this.removeGcflags(debugConfiguration['env']['GOFLAGS']);
if (resp.removed) {
debugConfiguration['env']['GOFLAGS'] = resp.args;
this.showWarning(
'ignoreDebugGCFlagsWarning',
"User specified build flag '--gcflags' in 'GOFLAGS' is being ignored (see [debugging with build flags](https://github.com/golang/vscode-go/blob/master/docs/debugging.md#specifying-other-build-flags) documentation)"
);
}
}

const dlvToolPath = getBinPath(debugAdapter);
if (!path.isAbsolute(dlvToolPath)) {
// If user has not already declined to install this tool,
Expand Down Expand Up @@ -324,43 +302,6 @@ export class GoDebugConfigurationProvider implements vscode.DebugConfigurationPr
return debugConfiguration;
}

public removeGcflags(args: string): { args: string; removed: boolean } {
// From `go help build`
// ...
// -gcflags '[pattern=]arg list'
// arguments to pass on each go tool compile invocation.
//
// The -asmflags, -gccgoflags, -gcflags, and -ldflags flags accept a
// space-separated list of arguments to pass to an underlying tool
// during the build. To embed spaces in an element in the list, surround
// it with either single or double quotes. The argument list may be
// preceded by a package pattern and an equal sign, which restricts
// the use of that argument list to the building of packages matching
// that pattern (see 'go help packages' for a description of package
// patterns). Without a pattern, the argument list applies only to the
// packages named on the command line. The flags may be repeated
// with different patterns in order to specify different arguments for
// different sets of packages. If a package matches patterns given in
// multiple flags, the latest match on the command line wins.
// For example, 'go build -gcflags=-S fmt' prints the disassembly
// only for package fmt, while 'go build -gcflags=all=-S fmt'
// prints the disassembly for fmt and all its dependencies.

// Regexp Explanation:
// 1. (^|\s): the flag is preceded by a white space or is at the start of the line.
// 2. -gcflags: the name of the flag.
// 3. (=| ): the name of the flag is followed by = or a space.
// 4. ('[^']*'|"[^"]*"|[^'"\s]+)+: the value of the flag is a combination of nonwhitespace
// characters and quoted strings which may contain white space.
const gcflagsRegexp = /(^|\s)(-gcflags)(=| )('[^']*'|"[^"]*"|[^'"\s]+)+/;
let removed = false;
while (args.search(gcflagsRegexp) >= 0) {
args = args.replace(gcflagsRegexp, '');
removed = true;
}
return { args, removed };
}

public resolveDebugConfigurationWithSubstitutedVariables(
folder: vscode.WorkspaceFolder | undefined,
debugConfiguration: vscode.DebugConfiguration,
Expand Down
59 changes: 0 additions & 59 deletions test/integration/goDebugConfiguration.test.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -369,65 +369,6 @@ suite('Debug Configuration Modify User Config', () => {
const debugConfigProvider = new GoDebugConfigurationProvider();

suite('remove gcflags', () => {
test('remove gcflags from string args', () => {
const tt = [
{
input: '-gcflags=all=-l',
want: { args: '', removed: true }
},
{
input: '-gcflags all=-l',
want: { args: '', removed: true }
},
// Preserve other flags
{
input: '-race -gcflags=all=-l -mod=mod',
want: { args: '-race -mod=mod', removed: true }
},
{
input: '-race -gcflags all=-l -mod=mod',
want: { args: '-race -mod=mod', removed: true }
},
// Test with quoted value
{
input: "-mod=mod -gcflags=test/...='hello goodbye' -race",
want: { args: '-mod=mod -race', removed: true }
},
{
input: '-mod=mod -gcflags test/...="hello goodbye" -race',
want: { args: '-mod=mod -race', removed: true }
},
{
input: "-mod=mod -gcflags='test/...=hello goodbye' -race",
want: { args: '-mod=mod -race', removed: true }
},
{
input: '-mod=mod -gcflags "test/...=hello goodbye" -race',
want: { args: '-mod=mod -race', removed: true }
},
// Multiple -gcflags present
{
input: '-mod=mod -gcflags "test/...=hello goodbye" -race -gcflags=all="hello goodbye"',
want: { args: '-mod=mod -race', removed: true }
},
// No gcflags are present
{
input: '',
want: { args: '', removed: false }
},
{
input: '-race -mod=gcflags',
want: { args: '-race -mod=gcflags', removed: false }
}
];

tt.forEach((tc) => {
const got = debugConfigProvider.removeGcflags(tc.input);

assert.strictEqual(got.args, tc.want.args, `args for ${tc.input} do not match expected`);
assert.strictEqual(got.removed, tc.want.removed, `removed for ${tc.input} does not match expected`);
});
});
test('remove user set -gcflags in buildFlags', () => {
const config = {
name: 'Launch',
Expand Down