upstream/mercurial-mirror Files · rust/hg-core/build.rs

templater: add subsetparents(rev, revset) function...

templater: add subsetparents(rev, revset) function Naming suggestions are welcome. And this could be flagged as an (ADVANCED) function since the primary use case is to draw a graph. This provides all data needed for drawing revisions graph filtered by revset, and allows us to implement a GUI graph viewer in some languages better than Python. A frontend grapher will be quite similar to our graphmod since subsetparents() just returns parent-child relations in the filtered sub graph. Frontend example: https://hg.sr.ht/~yuja/hgv/browse/default/core/hgchangesetgrapher.cpp However, the resulting graph will be simpler than the one "hg log -G" would generate because redundant edges are eliminated. This should be the same graph rendering strategy as TortoiseHg. This function could be implemented as a revset predicate, but that would mean the scanning state couldn't be cached and thus slow. Test cases are split to new file since test-template-functions.t is quite big and we'll need a new branchy repository anyway.

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             build.rs
        
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                | application/rls-services+xml
            
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      // build.rs

      //

      // Copyright 2020 Raphaël Gomès <rgomes@octobus.net>

      //

      // This software may be used and distributed according to the terms of the

      // GNU General Public License version 2 or any later version.

      #[cfg(feature = "with-re2")]

      use cc;

      #[cfg(feature = "with-re2")]

      fn compile_re2() {

          cc::Build::new()

              .cpp(true)

              .flag("-std=c++11")

              .file("src/re2/rust_re2.cpp")

              .compile("librustre.a");

          println!("cargo:rustc-link-lib=re2");

      }

      fn main() {

          #[cfg(feature = "with-re2")]

          compile_re2();

      }

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				// build.rs
				//
				// Copyright 2020 Raphaël Gomès <rgomes@octobus.net>
				//
				// This software may be used and distributed according to the terms of the
				// GNU General Public License version 2 or any later version.

				#[cfg(feature = "with-re2")]
				use cc;

				#[cfg(feature = "with-re2")]
				fn compile_re2() {
				cc::Build::new()
				.cpp(true)
				.flag("-std=c++11")
				.file("src/re2/rust_re2.cpp")
				.compile("librustre.a");

				println!("cargo:rustc-link-lib=re2");
				}

				fn main() {
				#[cfg(feature = "with-re2")]
				compile_re2();
				}