Use file DEPENDS.txt to produce minimal image in CI for pull requests

Dockerfile

@@ -24,7 +24,6 @@ ARG DEPENDENCIES="\
     python3-pygments \
     python3-venv \
     retry \
-    ruby \
     unzip \
     wget \
     zip \
@@ -35,6 +34,13 @@ ARG DEV_DEPENDENCIES="\
     vim \
 "
 
+ARG TEXLIVE_DEPENDENCIES="\
+    l3kernel \
+    latex \
+    latexmk \
+    luatex \
+"
+
 ARG BINARY_DIR=/usr/local/bin
 ARG BUILD_DIR=/git-repo
 ARG INSTALL_DIR=/usr/local/texlive/texmf-local
@@ -47,6 +53,7 @@ ARG DEV_IMAGE=false
 FROM $FROM_IMAGE:$TEXLIVE_TAG as build
 
 ARG DEPENDENCIES
+ARG TEXLIVE_DEPENDENCIES
 
 ARG BUILD_DIR
 ARG INSTALL_DIR
@@ -67,7 +74,7 @@ set -o errexit
 set -o nounset
 set -o xtrace
 
-# Install dependencies
+# Install OS dependencies
 apt-get -qy update
 apt-get -qy install --no-install-recommends ${DEPENDENCIES}
 
@@ -80,8 +87,12 @@ then
   retry -t 30 -d 60 tlmgr update --self --all --repository ftp://ftp.cstug.cz/pub/tex/local/tlpretest/
 fi
 
-# Generate the ConTeXt file database
-mtxrun --generate
+# Install basic TeX Live dependencies
+if echo ${TEXLIVE_TAG} | grep -q latest-minimal
+then
+  retry -t 30 -d 60 tlmgr install ${TEXLIVE_DEPENDENCIES}
+  tlmgr path add
+fi
 
 # Uninstall the distribution Markdown package
 rm -rfv ${PREINSTALLED_DIR}/tex/luatex/markdown/
@@ -112,7 +123,13 @@ cp ${BUILD_DIR}/t-markdown.tex                               ${INSTALL_DIR}/tex/
 cp ${BUILD_DIR}/t-markdownthemewitiko_markdown_defaults.tex  ${INSTALL_DIR}/tex/context/third/markdown/
 
 # Generate the ConTeXt file database
-mtxrun --generate
+if test ${DEV_IMAGE} != true
+then
+  mtxrun --generate
+  texlua /usr/bin/mtxrun.lua --luatex --generate
+  context --make
+  context --luatex --make
+fi
 
 # Reindex the TeX directory structure
 texhash
@@ -145,6 +162,9 @@ ENV DEBIAN_FRONTEND=noninteractive
 ENV TERM=xterm
 ENV TEXMFLOCAL=${INSTALL_DIR}
 
+COPY --from=build ${BUILD_DIR}/DEPENDS.txt ${BUILD_DIR}/DEPENDS.txt
+COPY --from=build ${BUILD_DIR}/tests/DEPENDS.txt ${BUILD_DIR}/tests/DEPENDS.txt
+
 RUN <<EOF
 
 set -o errexit
@@ -172,6 +192,13 @@ then
   retry -t 30 -d 60 tlmgr update --self --all --repository ftp://ftp.cstug.cz/pub/tex/local/tlpretest/
 fi
 
+# Install TeX Live dependencies
+if echo ${TEXLIVE_TAG} | grep -q latest-minimal
+then
+  retry -t 30 -d 60 tlmgr install $(awk '{ print $2 }' ${BUILD_DIR}/DEPENDS.txt ${BUILD_DIR}/tests/DEPENDS.txt | sort -u)
+  tlmgr path add
+fi
+
 # Uninstall the distribution Markdown package
 rm -rfv ${PREINSTALLED_DIR}/tex/luatex/markdown/
 rm -rfv ${PREINSTALLED_DIR}/scripts/markdown/
@@ -200,9 +227,20 @@ set -o xtrace
 chmod +x ${BINARY_DIR}/markdown-cli
 
 # Generate the ConTeXt file database
+if echo ${TEXLIVE_TAG} | grep -q latest-minimal
+then
+  # A temporary fix for ConTeXt, see <https://gitlab.com/islandoftex/images/texlive/-/issues/30>.
+  sed -i '/package.loaded\["data-ini"\]/a if os.selfpath then environment.ownbin=lfs.symlinktarget(os.selfpath..io.fileseparator..os.selfname);environment.ownpath=environment.ownbin:match("^.*"..io.fileseparator) else environment.ownpath=kpse.new("luatex"):var_value("SELFAUTOLOC");environment.ownbin=environment.ownpath..io.fileseparator..(arg[-2] or arg[-1] or arg[0] or "luatex"):match("[^"..io.fileseparator.."]*$") end' /usr/bin/mtxrun.lua || true
+fi
 mtxrun --generate
+texlua /usr/bin/mtxrun.lua --luatex --generate
+context --make
+context --luatex --make
 
 # Reindex the TeX directory structure
 texhash
 
+# Remove the build directory
+rm -rfv ${BUILD_DIR}
+
 EOF

Makefile

@@ -50,7 +50,7 @@ INSTALLABLES=markdown.lua markdown-cli.lua markdown.tex markdown.sty t-markdown.
   markdownthemewitiko_markdown_defaults.sty t-markdownthemewitiko_markdown_defaults.tex
 EXTRACTABLES=$(INSTALLABLES) $(MARKDOWN_USER_MANUAL) $(TECHNICAL_DOCUMENTATION_RESOURCES) \
   $(DEPENDENCIES)
-MAKEABLES=$(TECHNICAL_DOCUMENTATION) $(USER_MANUAL) $(INSTALLABLES) $(EXAMPLES)
+MAKEABLES=$(TECHNICAL_DOCUMENTATION) $(USER_MANUAL) $(INSTALLABLES) $(EXAMPLES) $(DEPENDENCIES)
 RESOURCES=$(DOCUMENTATION) $(EXAMPLES_RESOURCES) $(EXAMPLES_SOURCES) $(EXAMPLES) \
   $(MAKES) $(READMES) $(INSTALLER) $(DTXARCHIVE) $(TESTS) $(DEPENDENCIES)
 EVERYTHING=$(RESOURCES) $(INSTALLABLES) $(LIBRARIES)
@@ -70,6 +70,9 @@ ifndef DOCKER_TEXLIVE_TAG
 endif
 ifeq ($(DOCKER_DEV_IMAGE), true)
 	DOCKER_TAG_POSTFIX=-no_docs
+ifeq ($(DOCKER_TEXLIVE_TAG), latest)
+	DOCKER_TEXLIVE_TAG=latest-minimal
+endif
 endif
 DOCKER_TEMPORARY_IMAGE=ghcr.io/witiko/markdown
 DOCKER_TEMPORARY_TAG=$(VERSION)-$(DOCKER_TEXLIVE_TAG)$(DOCKER_TAG_POSTFIX)
@@ -131,9 +134,11 @@ $(EXTRACTABLES): $(INSTALLER) $(DTXARCHIVE)
 	    -e 's#(((LASTMODIFIED)))#$(LASTMODIFIED)#g' \
 	    $(INSTALLABLES)
 	sed -i \
-	    -e '/\\ExplSyntaxOff/{N;/\\ExplSyntaxOn/d;}' \
+	    -e '/\\ExplSyntaxOff/ { N; /\\ExplSyntaxOn/d; }' \
 	    $(INSTALLABLES)
-	grep -v '^#' $(DEPENDENCIES) | sort -u -o $(DEPENDENCIES)
+	( \
+	  sed -n '/^#/ ! { s/\s*#.*//; p }' $(DEPENDENCIES); \
+	) | sort -u -o $(DEPENDENCIES)
 
 # This target produces the version file.
 $(VERSION_FILE): force

examples/DEPENDS.txt

@@ -0,0 +1,10 @@
+soft babel-english
+soft collection-context
+soft collection-latex
+soft collection-latexrecommended
+soft collection-luatex
+soft dvipng
+soft latex-bin
+soft make4ht
+soft optex
+soft xetex

markdown.dtx

@@ -1359,6 +1359,7 @@ soft paralist
 % \end{markdown}
 %  \begin{macrocode}
 soft latex
+soft epstopdf-pkg  # required by `latex`
 %    \end{macrocode}
 % \begin{markdown}
 %
@@ -1382,6 +1383,8 @@ soft fancyvrb
 % \end{markdown}
 %  \begin{macrocode}
 soft csvsimple
+soft pgf  # required by `csvsimple`, which loads `pgfkeys.sty`
+soft tools  # required by `csvsimple`, which loads `shellesc.sty`
 %    \end{macrocode}
 % \begin{markdown}
 %

tests/DEPENDS.txt

@@ -0,0 +1,3 @@
+soft context
+soft latex-bin
+soft xetex