Attempt uploading to CTAN in CI

Author: hmenke

.github/workflows/main.yml

@@ -42,15 +42,18 @@ jobs:
         name: pgfmanual
         path: doc/generic/pgf/version-for-${{ matrix.engine }}/en/pgfmanual.pdf
 
-    - name: Build and sign zips
+    - name: "ZIP: Build"
       if: matrix.engine == 'luatex'
+      run: |
+        texlua build.lua tds
+        texlua build.lua ctan
+
+    - name: "ZIP: Sign"
+      if: matrix.engine == 'luatex' && github.event_name != 'pull_request'
       env:
         GPG_SECRET_KEY: ${{ secrets.GPG_SECRET_KEY }}
         GPG_PUBLIC_KEY: ${{ secrets.GPG_PUBLIC_KEY }}
       run: |
-        # build zips
-        texlua build.lua tds
-        texlua build.lua ctan
         # get the keys
         printenv GPG_SECRET_KEY > "pgf-${GIT_TAG}.sec"
         printenv GPG_PUBLIC_KEY > "pgf-${GIT_TAG}.pub"
@@ -101,6 +104,17 @@ jobs:
         asset_name: pgfmanual-${{ env.GIT_TAG }}.pdf
         asset_content_type: application/pdf
 
+    - name: "Release: upload public key"
+      uses: actions/upload-release-asset@v1
+      if: matrix.engine == 'luatex' && startsWith(github.ref, 'refs/tags/')
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      with:
+        upload_url: ${{ steps.create_release.outputs.upload_url }}
+        asset_path: ./pgf-${{ env.GIT_TAG }}.pub
+        asset_name: pgf-${{ env.GIT_TAG }}.pub
+        asset_content_type: text/plain
+
     - name: "Release: upload TDS zip"
       uses: actions/upload-release-asset@v1
       if: matrix.engine == 'luatex' && startsWith(github.ref, 'refs/tags/')
@@ -144,3 +158,13 @@ jobs:
         asset_path: ./pgf_${{ env.GIT_TAG }}.ctan.flatdir.zip.sig
         asset_name: pgf_${{ env.GIT_TAG }}.ctan.flatdir.zip.sig
         asset_content_type: text/plain
+
+    - name: "CTAN: Validate"
+      if: matrix.engine == 'luatex'
+      run: |
+        bash ci/ctan_upload.sh validate
+
+    - name: "CTAN: Upload"
+      if: matrix.engine == 'luatex' && startsWith(github.ref, 'refs/tags/') && github.repository == 'pgf-tikz/pgf'
+      run: |
+        bash ci/ctan_upload.sh upload

ci/ctan_upload.sh

@@ -0,0 +1,47 @@
+#!/usr/bin/env bash
+
+die() {
+	>&2 echo "$@"
+	exit 1
+}
+
+[[ -n ${GIT_TAG+x} ]] || die "The GIT_TAG variable is unset"
+
+case "$1" in
+	validate|upload) ;;
+	*) die "Unsupported action: $1" ;;
+esac
+
+CTAN_NOTES=$(mktemp)
+cat > "$CTAN_NOTES" <<EOF
+The release files are signed using a detached signature.  You can obtain the
+signature from the GitHub release page
+
+    https://github.com/pgf-tikz/pgf/releases/download/${GIT_TAG}/pgf_${GIT_TAG}.ctan.flatdir.zip.sig
+
+$(cat doc/generic/pgf/CTAN_NOTES.md)
+EOF
+
+curl \
+	-F "update=true" \
+	-F "pkg=pgf" \
+	-F "version=${GIT_TAG}" \
+	-F "author=Christian Feuersänger" \
+	-F "author=Henri Menke" \
+	-F "author=The PGF/TikZ Team" \
+	-F "author=Till Tantau" \
+	-F "uploader=github-actions" \
+	-F "email=pgf-tikz@tug.org" \
+	-F "summary=Create PostScript and PDF graphics in TeX" \
+	-F "description=<doc/generic/pgf/description.html" \
+	-F "ctanPath=/graphics/pgf/base" \
+	-F "announcement=<doc/generic/pgf/RELEASE_NOTES.md" \
+	-F "note=<$CTAN_NOTES" \
+	-F "license=fdl" \
+	-F "license=gpl2" \
+	-F "license=lppl1.3c" \
+	-F "file=@pgf_${GIT_TAG}.ctan.flatdir.zip" \
+	-F "bugs=https://github.com/pgf-tikz/pgf/issues" \
+	-F "support=https://tug.org/mailman/listinfo/pgf-tikz" \
+	-F "repository=https://github.com/pgf-tikz/pgf" \
+	"https://www.ctan.org/submit/$1"

doc/generic/pgf/CTAN_NOTES.md

@@ -0,0 +1 @@
+

doc/generic/pgf/description.html

@@ -0,0 +1 @@
+<p>PGF is a macro package for creating graphics. It is platform- and format-independent and works together with the most important TeX backend drivers, including pdfTeX and dvips. It comes with a user-friendly syntax layer called TikZ.<br></p><p>Its usage is similar to <a data-cke-saved-href="/pkg/pstricks-base" href="/pkg/pstricks-base">pstricks</a> and the standard picture environment. PGF works with plain (pdf-)TeX, (pdf-)LaTeX, and ConTeXt. Unlike <a data-cke-saved-href="/pkg/pstricks-base" href="/pkg/pstricks-base">pstricks</a>, it can produce either PostScript or PDF output.<br></p>