Add repo server to keep stuff up to date

Author: DolceTriade

reposerver/Cargo.toml

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+[package]
+name = "reposerver"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+anyhow = "1"
+chrono = { version = "0.4", features = ["serde"] }
+clap = { version = "4.5", features = ["derive"] }
+glob = "0.3"
+humantime = "2.1"
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+tokio = { version = "1", features = ["macros", "process", "rt-multi-thread", "signal", "sync", "time"] }
+toml = "0.8"
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter", "fmt"] }

reposerver/README.md

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+# reposerver
+
+`reposerver` polls configured Git repositories, fetches only configured branches at depth 1,
+and runs `pointer-indexer` only when branch head commits change.
+
+Logging is emitted to stderr via `tracing` (configure verbosity with `RUST_LOG`).
+
+## Run
+
+```bash
+cargo run -p reposerver -- --config reposerver/example.reposerver.toml --validate-config
+cargo run -p reposerver -- --config reposerver/example.reposerver.toml --once
+cargo run -p reposerver -- --config reposerver/example.reposerver.toml
+```
+
+## Config
+
+See `reposerver/example.reposerver.toml` for a complete example.
+
+`global.indexer_args` are applied first for every invocation, then `repo.indexer_args` are appended.
+Per-branch args can be set with `[[repo.per_branch]]`; those args are appended last.

reposerver/example.reposerver.toml

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+[global]
+state_dir = ".reposerver-state"
+default_interval = "5m"
+max_repo_concurrency = 1
+git_bin = "git"
+indexer_bin = "pointer-indexer"
+indexer_args = ["--upload-url", "http://127.0.0.1:8080/api/v1/index"]
+
+[[repo]]
+name = "pointer"
+url = "git@github.com:org/pointer.git"
+interval = "2m"
+branches = ["main", "release/*"]
+indexer_args = ["--keep-latest", "3"]
+
+[[repo.per_branch]]
+branch = "main"
+indexer_args = ["--live"]
+
+[[repo.pre_index_hooks]]
+command = "scripts/pre-index.sh"
+timeout = "2m"
+
+[[repo.post_upload_hooks]]
+command = "scripts/post-upload.sh"
+timeout = "2m"