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eb643d034f
Rather than "mounting" the store inside an empty virtual filesystem, just return the store as a virtual filesystem. This is more modular. (FWIW, it also supports two long term hopes of mind: 1. More capability-based Nix language mode. I dream of a "super pure eval" where you can only use relative path literals (See #8738), and any `fetchTree`-fetched stuff + the store are all disjoint (none is mounted in another) file systems. 2. Windows, where the store dir may include drive letters, etc., and is thus unsuitable to be the prefix of any `CanonPath`s. ) Co-authored-by: Eelco Dolstra <edolstra@gmail.com>
74 lines
2.8 KiB
Bash
Executable file
74 lines
2.8 KiB
Bash
Executable file
#!/usr/bin/env bash
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source common.sh
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TODO_NixOS
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clearStore
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clearCache
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# nix shell is an alias for nix env shell. We'll use the shorter form in the rest of the test.
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nix env shell -f shell-hello.nix hello -c hello | grep 'Hello World'
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nix shell -f shell-hello.nix hello -c hello | grep 'Hello World'
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nix shell -f shell-hello.nix hello -c hello NixOS | grep 'Hello NixOS'
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# Test output selection.
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nix shell -f shell-hello.nix hello^dev -c hello2 | grep 'Hello2'
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nix shell -f shell-hello.nix 'hello^*' -c hello2 | grep 'Hello2'
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# Test output paths that are a symlink.
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nix shell -f shell-hello.nix hello-symlink -c hello | grep 'Hello World'
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# Test that symlinks outside of the store don't work.
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expect 1 nix shell -f shell-hello.nix forbidden-symlink -c hello 2>&1 | grepQuiet "points outside source tree"
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# Test that we're not setting any more environment variables than necessary.
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# For instance, we might set an environment variable temporarily to affect some
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# initialization or whatnot, but this must not leak into the environment of the
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# command being run.
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env > "$TEST_ROOT/expected-env"
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nix shell -f shell-hello.nix hello -c env > "$TEST_ROOT/actual-env"
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# Remove/reset variables we expect to be different.
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# - PATH is modified by nix shell
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# - we unset TMPDIR on macOS if it contains /var/folders
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# - _ is set by bash and is expectedf to differ because it contains the original command
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# - __CF_USER_TEXT_ENCODING is set by macOS and is beyond our control
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sed -i \
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-e 's/PATH=.*/PATH=.../' \
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-e 's/_=.*/_=.../' \
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-e '/^TMPDIR=\/var\/folders\/.*/d' \
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-e '/^__CF_USER_TEXT_ENCODING=.*$/d' \
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"$TEST_ROOT/expected-env" "$TEST_ROOT/actual-env"
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sort "$TEST_ROOT/expected-env" > "$TEST_ROOT/expected-env.sorted"
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sort "$TEST_ROOT/actual-env" > "$TEST_ROOT/actual-env.sorted"
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diff "$TEST_ROOT/expected-env.sorted" "$TEST_ROOT/actual-env.sorted"
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if isDaemonNewer "2.20.0pre20231220"; then
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# Test that command line attribute ordering is reflected in the PATH
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# https://github.com/NixOS/nix/issues/7905
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nix shell -f shell-hello.nix hello salve-mundi -c hello | grep 'Hello World'
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nix shell -f shell-hello.nix salve-mundi hello -c hello | grep 'Salve Mundi'
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fi
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requireSandboxSupport
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requiresUnprivilegedUserNamespaces
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chmod -R u+w "$TEST_ROOT/store0" || true
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rm -rf "$TEST_ROOT/store0"
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clearStore
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path=$(nix eval --raw -f shell-hello.nix hello)
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# Note: we need the sandbox paths to ensure that the shell is
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# visible in the sandbox.
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nix shell --sandbox-build-dir /build-tmp \
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--sandbox-paths '/nix? /bin? /lib? /lib64? /usr?' \
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--store "$TEST_ROOT/store0" -f shell-hello.nix hello -c hello | grep 'Hello World'
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path2=$(nix shell --sandbox-paths '/nix? /bin? /lib? /lib64? /usr?' --store "$TEST_ROOT/store0" -f shell-hello.nix hello -c "$SHELL" -c 'type -p hello')
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[[ "$path/bin/hello" = "$path2" ]]
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[[ -e $TEST_ROOT/store0/nix/store/$(basename "$path")/bin/hello ]]
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