build: ensure wrapper config is picked up

`cargo build` and `cargo install` pick up different config files, by symlinking
the wrapper config into a place with higher precedence than the one in the
top-level git repo dir, we ensure the package build actually picks up the
desired config instead of the one intended for quick dev builds.

Signed-off-by: Fabian Grünbichler <f.gruenbichler@proxmox.com>

diff --git a/debian/rules b/debian/rules
index a82c3e12fd3bcb7f223fb234c7ca271e19e93690..a03fe11ba0545452ace32455003dcee8bbc00762 100755 (executable)
--- a/debian/rules
+++ b/debian/rules
@@ -28,6 +28,11 @@ override_dh_auto_configure:
        @perl -ne 'if (/^version\s*=\s*"(\d+(?:\.\d+)+)"/) { my $$v_cargo = $$1; my $$v_deb = "$(DEB_VERSION_UPSTREAM)"; \
            die "ERROR: d/changelog <-> Cargo.toml version mismatch: $$v_cargo != $$v_deb\n" if $$v_cargo ne $$v_deb; exit(0); }' Cargo.toml
        $(CARGO) prepare-debian $(CURDIR)/debian/cargo_registry --link-from-system
+       # `cargo build` and `cargo install` have different config precedence, symlink
+       # the wrapper config into a place where `build` picks it up as well..
+       # https://doc.rust-lang.org/cargo/commands/cargo-install.html#configuration-discovery
+       mkdir -p .cargo
+       ln -s $(CARGO_HOME)/config.toml $(CURDIR)/.cargo/config.toml
        dh_auto_configure
 
 override_dh_auto_build: