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build system: follow-up enhancements regarding LazyPath

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* introduce LazyPath.cwd_relative variant and use it for --zig-lib-dir. closes #12685
* move overrideZigLibDir and setMainPkgPath to options fields set once
  and then never mutated.
* avoid introducing Build/util.zig
* use doc comments for deprecation notices so that they show up in
  generated documentation.
* introduce InstallArtifact.Options, accept it as a parameter to
  addInstallArtifact, and move override_dest_dir into it. Instead of
  configuring the installation via Compile step, configure the
  installation via the InstallArtifact step. In retrospect this is
  obvious.
* remove calls to pushInstalledFile in InstallArtifact. See #14943
* rewrite InstallArtifact to not incorrectly observe whether a Compile
  step has any generated outputs. InstallArtifact is meant to trigger
  output generation.
* fix child process evaluation code handling of `-fno-emit-bin`.
* don't store out_h_filename, out_ll_filename, etc., pointlessly. these
  are all just simple extensions appended to the root name.
* make emit_directory optional. It's possible to have nothing outputted,
  for example, if you're just type-checking.
* avoid passing -femit-foo/-fno-emit-foo when it is the default
* rename ConfigHeader.getTemplate to getOutput
* deprecate addOptionArtifact
* update the random number seed of Options step caching.
* avoid using `inline for` pointlessly
* avoid using `override_Dest_dir` pointlessly
* avoid emitting an executable pointlessly in test cases

Removes forceBuild and forceEmit. Let's consider these additions separately.
Nearly all of the usage sites were suspicious.
This commit is contained in:
Andrew Kelley
2023-07-29 23:57:52 -07:00
parent f8386de7ae
commit 38840e2e58
29 changed files with 398 additions and 390 deletions
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8
lib/std/Build/Step/ConfigHeader.zig
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@@ -15,7 +15,8 @@ pub const Style = union(enum) {
/// Start with nothing, like blank, and output a nasm .asm file.
nasm,
pub const getFileSource = getPath; // DEPRECATED, use getPath
/// deprecated: use `getPath`
pub const getFileSource = getPath;
pub fn getPath(style: Style) ?std.Build.LazyPath {
switch (style) {
@@ -100,9 +101,10 @@ pub fn addValues(self: *ConfigHeader, values: anytype) void {
return addValuesInner(self, values) catch @panic("OOM");
}
pub const getFileSource = getTemplate; // DEPRECATED, use getOutput
/// deprecated: use `getOutput`
pub const getFileSource = getOutput;
pub fn getTemplate(self: *ConfigHeader) std.Build.LazyPath {
pub fn getOutput(self: *ConfigHeader) std.Build.LazyPath {
return .{ .generated = &self.output_file };
}