add build pipeline

.dockerignore

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+target
+LICENSE
+README.md
+.env

.drone.yml

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+---
+kind: pipeline
+type: docker
+name: default
+
+steps:
+  - name: publish sha
+    image: banzaicloud/drone-kaniko
+    settings:
+      registry: registry.fromouter.space
+      repo: uchumoe/sourcehut-mirror-bridge
+      cache: true
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+      tags:
+        - latest
+        - ${DRONE_COMMIT_SHA}
+    when:
+      event:
+        - push
+
+  - name: publish tag
+    image: banzaicloud/drone-kaniko
+    settings:
+      registry: registry.fromouter.space
+      repo: uchumoe/sourcehut-mirror-bridge
+      cache: true
+      username:
+        from_secret: docker_username
+      password:
+        from_secret: docker_password
+      tags:
+        - ${DRONE_COMMIT_BRANCH}
+    when:
+      event:
+        - tag
+---
+kind: signature
+hmac: 925643c1816fd7df3823079bc98a79836e34e4641b8328ae0bc3eae37923ff84
+
+...

Dockerfile

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+FROM public.ecr.aws/docker/library/rust:1-alpine as builder
+
+RUN rustup default stable
+RUN apk add --no-cache musl-dev openssl-dev openssl-libs-static pkgconf git
+
+# Set `SYSROOT` to a dummy path (default is /usr) because pkg-config-rs *always*
+# links those located in that path dynamically but we want static linking, c.f.
+# https://github.com/rust-lang/pkg-config-rs/blob/54325785816695df031cef3b26b6a9a203bbc01b/src/lib.rs#L613
+ENV SYSROOT=/dummy
+
+WORKDIR /wd
+COPY . /wd
+RUN cargo build --release --target=x86_64-unknown-linux-musl
+
+FROM public.ecr.aws/docker/library/alpine
+ARG version=unknown
+ARG release=unreleased
+
+COPY --from=builder /wd/target/x86_64-unknown-linux-musl/release/sourcehut-mirror-bridge /usr/local/bin/
+CMD ["sourcehut-mirror-bridge"]

README.md

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+# sourcehut-mirror-bridge
+
+SourceHut to Gitea active mirror bridge. Uses Soucehut GQL APIs to set up a webhook and manually sync a downstream Gitea/Forgejo repository set as a mirror.
+
+Use case: You're running Drone CI or others linked to a Gitea instance and you want them to run as soon as possible.