build/bin/sage-spkg-info: Use inline tabs for system package commands

Author: Matthias Koeppe

build/bin/sage-print-system-package-command

@@ -7,7 +7,7 @@ SUDO=
 PROMPT=
 SPKG=no
 if [ -n "$OUTPUT_RST" ]; then
-    COMMENT=""
+    COMMENT="$RST_INDENT"
 else
     COMMENT="# "
 fi
@@ -86,7 +86,7 @@ function print_shell_command()
 {
     if [ -n "$OUTPUT_RST" ]; then
         echo
-        echo ".. CODE-BLOCK:: bash"
+        echo "$RST_INDENT.. CODE-BLOCK:: bash"
         echo
     fi
     # shell-quote arguments if necessary

build/bin/sage-spkg-info

@@ -12,12 +12,16 @@ if [ -n "$OUTPUT_RST" ]; then
     echo ".. _spkg_$PKG_BASE:"
     echo
     ref ()   { echo ":ref:\`$1\`"; }
+    spkg ()  { ref spkg_$1; }
     issue () { echo ":issue:\`$1\`"; }
     code ()  { echo "\`\`$*\`\`"; }
+    tab ()   { echo ".. tab:: $1"; }
 else
     ref ()   { echo "$1"; }
+    spkg ()  { echo "$1"; }
     issue () { echo "https://github.com/sagemath/sage/issues/$1"; }
     code ()  { echo "$1"; }
+    tab ()   { echo "$1:"; }
 fi
 PKG_SCRIPTS="$SAGE_ROOT/build/pkgs/$PKG_BASE"
 for ext in rst txt; do
@@ -56,7 +60,7 @@ for dep_file in dependencies dependencies_order_only; do
                 # Looks like a package
                 *)          if [ -r "$SAGE_ROOT/build/pkgs/$dep/SPKG.rst" ]; then
                                 # This RST label is set in src/doc/bootstrap
-                                echo "- $(ref spkg_$dep)"
+                                echo "- $(spkg $dep)"
                             else
                                 echo "- $dep"
                             fi;;
@@ -96,31 +100,38 @@ for system_package_file in "$PKG_DISTROS"/*.txt; do
         esac
     fi
 done
-if [ $have_repology = yes ]; then
-    systems="$systems repology"
-fi
 system=
+# Show using inline tabs
+export RST_INDENT="   "
 for system in $systems; do
         system_package_file="$PKG_DISTROS"/$system.txt
         system_packages="$(echo $(sed 's/#.*//;' $system_package_file))"
         case $system in
             debian)
                 # Generic
-                echo "Debian/Ubuntu:"
+                tab "Debian/Ubuntu"
                 ;;
             fedora)
                 # Generic
-                echo "Fedora/Redhat/CentOS:"
+                tab "Fedora/Redhat/CentOS"
                 ;;
             repology)
                 ;;
             *)
-                echo "$system:"
+                tab "$system"
                 ;;
         esac
-        sage-print-system-package-command $system --wrap --prompt='    $ ' --continuation='          ' --sudo install $system_packages
+        sage-print-system-package-command $system --wrap --prompt="$RST_INDENT"'    $ ' --continuation="$RST_INDENT"'          ' --sudo install $system_packages
         echo
 done
+unset RST_INDENT
+if [ $have_repology = yes ]; then
+    # Show below the inline tabs
+    system=repology
+    system_package_file="$PKG_DISTROS"/$system.txt
+    system_packages="$(echo $(sed 's/#.*//;' $system_package_file))"
+    sage-print-system-package-command $system --wrap --prompt='    $ ' --continuation='          ' --sudo install $system_packages
+fi
 if [ -z "$system" ]; then
     echo "(none known)"
 else