Add NIx support

.github/workflows/docs-ci.yml

@@ -14,10 +14,10 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: ${{ matrix.python-version }}
 

.github/workflows/pypi-release.yml

@@ -24,9 +24,9 @@ jobs:
     runs-on: ubuntu-24.04
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: 3.13
 
@@ -37,7 +37,7 @@ jobs:
         run: python -m build --sdist --wheel --outdir dist/
 
       - name: Upload built archives
-        uses: actions/upload-artifact@v7
+        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f
         with:
           name: pypi_archives
           path: dist/*
@@ -51,7 +51,7 @@ jobs:
 
     steps:
       - name: Download built archives
-        uses: actions/download-artifact@v8
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131
         with:
           name: pypi_archives
           path: dist
@@ -75,7 +75,7 @@ jobs:
 
     steps:
       - name: Download built archives
-        uses: actions/download-artifact@v8
+        uses: actions/download-artifact@37930b1c2abaa49bbe596cd826c3c89aef350131
         with:
           name: pypi_archives
           path: dist/

.github/workflows/run-unit-tests.yml

@@ -18,10 +18,10 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd  # v6.0.2
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405  # v6.2.0
         with:
           python-version: ${{ matrix.python-version }}
 

AUTHORS.rst

@@ -7,3 +7,4 @@ The following organizations or individuals have contributed to this repo:
 - Tushar Goel @ TG1999
 - Thomas Druez @ tdruez
 - Keshav Priyadarshi @ keshav-space
+- Chin Yeung Li @ chinyeungli

README.rst

@@ -89,6 +89,7 @@ Ecosystems supported for fetching a purl from fetchcode:
 - hex
 - luarocks
 - maven
+- nix
 - npm
 - nuget
 - pub
@@ -110,19 +111,19 @@ This project is funded, supported and sponsored by:
 
 - Generous support and contributions from users like you!
 - the European Commission NGI programme
-- the NLnet Foundation 
+- the NLnet Foundation
 - the Swiss State Secretariat for Education, Research and Innovation (SERI)
 - Google, including the Google Summer of Code and the Google Seasons of Doc programmes
 - Mercedes-Benz Group
 - Microsoft and Microsoft Azure
 - AboutCode ASBL
-- nexB Inc. 
+- nexB Inc.
 
 
 
-|europa|   |dgconnect| 
+|europa|   |dgconnect|
 
-|ngi|   |nlnet|   
+|ngi|   |nlnet|
 
 |aboutcode|  |nexb|
 
@@ -136,7 +137,7 @@ Communications Networks, Content and Technology under grant agreement No 1010929
 
 This project was funded through the NGI0 Entrust Fund, a fund established by NLnet with financial
 support from the European Commission's Next Generation Internet programme, under the aegis of DG
-Communications Networks, Content and Technology under grant agreement No 101069594. 
+Communications Networks, Content and Technology under grant agreement No 101069594.
 
 |ngizeroentrust| https://nlnet.nl/project/Back2source/
 
@@ -150,7 +151,7 @@ Communications Networks, Content and Technology under grant agreement No 1010929
 
 This project was funded through the NGI0 Entrust Fund, a fund established by NLnet with financial
 support from the European Commission's Next Generation Internet programme, under the aegis of DG
-Communications Networks, Content and Technology under grant agreement No 101069594. 
+Communications Networks, Content and Technology under grant agreement No 101069594.
 
 |ngizeroentrust| https://nlnet.nl/project/purl2all/
 

src/fetchcode/download_urls.py

@@ -21,9 +21,10 @@
 from fetchcode.cpan import CPAN
 from fetchcode.cran import CRAN
 from fetchcode.huggingface import Huggingface
+from fetchcode.nix import Nix
 from fetchcode.pypi import Pypi
 
-package_registry = [Pypi, CRAN, CPAN, Huggingface, Composer]
+package_registry = [Pypi, CRAN, CPAN, Huggingface, Composer, Nix]
 
 router = Router()