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cafefed421
"content-address*ed*" derivation is misleading because all derivations are *themselves* content-addressed. What may or may not be content-addressed is not derivation itself, but the *output* of the derivation. The outputs are not *part* of the derivation (for then the derivation wouldn't be complete before we built it) but rather separate entities produced by the derivation. "content-adddress*ed*" is not correctly because it can only describe what the derivation *is*, and that is not what we are trying to do. "content-address*ing*" is correct because it describes what the derivation *does* --- it produces content-addressed data.
31 lines
1.1 KiB
Bash
31 lines
1.1 KiB
Bash
#!/usr/bin/env bash
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source common.sh
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export NIX_TESTS_CA_BY_DEFAULT=1
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drvPath=$(nix-instantiate ../simple.nix)
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nix derivation show "$drvPath" | jq .[] > "$TEST_HOME"/simple.json
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drvPath2=$(nix derivation add < "$TEST_HOME"/simple.json)
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[[ "$drvPath" = "$drvPath2" ]]
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# Content-addressing derivations can be renamed.
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jq '.name = "foo"' < "$TEST_HOME"/simple.json > "$TEST_HOME"/foo.json
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drvPath3=$(nix derivation add --dry-run < "$TEST_HOME"/foo.json)
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# With --dry-run nothing is actually written
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[[ ! -e "$drvPath3" ]]
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# But the JSON is rejected without the experimental feature
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expectStderr 1 nix derivation add < "$TEST_HOME"/foo.json --experimental-features nix-command | grepQuiet "experimental Nix feature 'ca-derivations' is disabled"
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# Without --dry-run it is actually written
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drvPath4=$(nix derivation add < "$TEST_HOME"/foo.json)
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[[ "$drvPath4" = "$drvPath3" ]]
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[[ -e "$drvPath3" ]]
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# The modified derivation read back as JSON matches
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nix derivation show "$drvPath3" | jq .[] > "$TEST_HOME"/foo-read.json
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diff "$TEST_HOME"/foo.json "$TEST_HOME"/foo-read.json
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