cc01059d40
This is meant to be a high-velocity alternative to writing an entire FUSE filesystem to facilitate smaller checkouts of the depot. The script mostly works today, except that remote dependency detection is not set up. Change-Id: Idf9048df4f7ee39eaaedcdafcd9621f3d7479947 Reviewed-on: https://cl.tvl.fyi/c/depot/+/1644 Tested-by: BuildkiteCI Reviewed-by: edef <edef@edef.eu> Reviewed-by: tazjin <mail@tazj.in>
37 lines
1.3 KiB
Markdown
37 lines
1.3 KiB
Markdown
Below is a prototype for a script to create Git sparse checkouts of the depot.
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The script below works today with relatively recent versions of git.
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Open items:
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- Read-increment-write the checkout ID from a file in .git.
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- `NICE_CHECKOUT_ROOT` should be a git configuration value.
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- `tvl-get-depends` will be a script that contacts the build farm and asks for
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the closure of a given source directory, using [depot-scan].
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```bash
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DEPOT_ROOT="${depot.depotPath}"
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XDG_DATA_HOME="${XDG_DATA_HOME:-$HOME/.local/share}"
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CLIENT_ROOT="$XDG_DATA_HOME/tvlc/clients"
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NICE_CHECKOUT_ROOT="$HOME/tvlc"
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CHECKOUT_ID=1
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CHECKOUT_NAME=myclient # command line variables
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assertAbsolutePath "$CLIENT_ROOT"
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mkdir "$CLIENT_ROOT"/"$CHECKOUT_ID"
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ln -s "$CLIENT_ROOT"/"$CHECKOUT_ID" "$NICE_CHECKOUT_ROOT"/"$CHECKOUT_NAME"
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cd "$DEPOT_ROOT"
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git worktree add --no-checkout -b "tvlc-$CHECKOUT_ID" "$CLIENT_ROOT/$CHECKOUT_ID/" canon
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# BUG: git not creating the /info/ subdir
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mkdir "$DEPOT_ROOT"/.git/worktrees/"$CHECKOUT_ID"/info
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cd "$CLIENT_ROOT/$CHECKOUT_ID"
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git sparse-checkout init --cone
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git sparse-checkout set "$TARGET_DIR" nix/readTree overrides
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tvl-get-depends "$TARGET_DIR" | xargs git sparse-checkout add
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cd "$NICE_CHECKOUT_ROOT"/"$CHECKOUT_NAME"
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```
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[depot-scan]: ../users/edef/depot-scan.nix
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