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psy
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.tangled/workflows/build.yml
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.tangled/workflows/build.yml
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- skopeo
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- nix
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- postgresql_15
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- postgresql_15.pg_config # pg_config is a separate output in nixpkgs 25.05+ / unstable
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- libffi
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- openjpeg
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- pango
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# -----------------------------------------------------------------
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# psycopg_c build fix
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#
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# pip's PEP 517 build-isolation spawns an isolated subprocess with
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# its own PATH overlay (/tmp/pip-build-env-*/overlay/…) that
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# shadows /usr/bin, /usr/local/bin, and any PATH we export here.
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# The metadata-generation phase calls `pg_config` as a bare command
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# via subprocess.run(["pg_config", ...]) using the ambient PATH —
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# NOT the PG_CONFIG env var — so symlinks and exports alone fail.
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# In nixpkgs 25.05+ / unstable, pg_config was split into a separate
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# output (postgresql_15.pg_config). We list it explicitly in the
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# dependencies so it's on PATH automatically via the Nix profile.
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#
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# Fix: use --no-build-isolation for psycopg[c] so the build runs
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# directly in our environment where pg_config is on PATH and
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# PG_CONFIG is exported. We pre-install the build deps (setuptools,
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# wheel) so the non-isolated build succeeds.
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# We still use --no-build-isolation for psycopg[c] because pip's
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# PEP 517 build-isolation spawns an isolated subprocess with its
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# own PATH overlay that can shadow the profile PATH. Building
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# without isolation ensures our env vars (PG_CONFIG, PATH,
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# LDFLAGS, CPPFLAGS) are visible to the build backend.
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# -----------------------------------------------------------------
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echo "=== Locating pg_config ==="
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PG_CONFIG_BIN=""
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# Try 1: already on PATH
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# Try 1: already on PATH (expected — postgresql_15.pg_config is in dependencies)
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PG_CONFIG_BIN="$(command -v pg_config 2>/dev/null || true)"
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# Try 2: common Nix profile locations