simplify CI script and drop versions

Author: videlec

.github/workflows/main.yml

@@ -14,8 +14,8 @@ jobs:
             fail-fast: false
             matrix:
                 os: [ubuntu-latest]
-                python-version: ['3.6', '3.7', '3.8', '3.9', '3.10', '3.11.0-rc.2']
-                pari-version: ['pari-2.9.4', 'pari-2.9.5', 'pari-2.11.0', 'pari-2.11.0', 'pari-2.11.2', 'pari-2.11.3', 'pari-2.11.4', 'pari-2.13.0', 'pari-2.15.1', 'snapshot']
+                python-version: ['3.6', '3.10', '3.11']
+                pari-version: ['pari-2.9.5', 'pari-2.11.4', 'pari-2.13.0', 'pari-2.15.1']
         env:
           LC_ALL: C
           PARI_VERSION: ${{ matrix.pari-version }}
@@ -30,7 +30,7 @@ jobs:
           run: |
               ccache -M 256M && ccache -s
               export PATH="/usr/lib/ccache:$PATH"
-              bash -x .travis-install-pari.sh
+              bash -x .install-pari.sh
         - name: Local build
           run: |
             pip install sphinx cython cysignals

.travis-install-pari.sh renamed to .install-pari.sh

@@ -1,12 +1,8 @@
-# Helper script to install PARI for Travis CI
+# Helper script to install PARI for github workflows
 
 # Exit on error
 set -e
 
-if [ "$PARI_VERSION" = snapshot ]; then
-    URLDIR=snapshots
-fi
-
 if [ "$URLDIR" = "" ]; then
     PURE_VERSION=${PARI_VERSION/pari-}
     URLDIR=OLD/${PURE_VERSION%.*}
@@ -15,22 +11,13 @@ fi
 PARI_URL="http://pari.math.u-bordeaux.fr/pub/pari/$URLDIR"
 PARI_URL1="http://pari.math.u-bordeaux.fr/pub/pari/unix"
 PARI_URL2="http://pari.math.u-bordeaux.fr/pub/pari/unstable"
-PARI_URL3="http://pari.math.u-bordeaux.fr/pub/pari/snapshot"
-
-# Figure out PARI version and download location
-# Note that we support giving a list of URLs
-if [ "$PARI_VERSION" = snapshot ]; then
-    # The C=M;O=D request means: sort by date, most recent first.
-    # Then the first tarball is the one we want.
-    PARI_VERSION=$(wget -qO- "$PARI_URL/?C=M;O=D" | sed -n 's/.*href="\(pari-.*-g.*\)[.]tar[.]gz".*/\1/; T; p; q')
-fi
 
 # Download PARI sources
 wget --no-verbose "$PARI_URL/$PARI_VERSION.tar.gz" || wget --no-verbose "$PARI_URL1/$PARI_VERSION.tar.gz" || wget --no-verbose "$PARI_URL2/$PARI_VERSION.tar.gz" || wget --no-verbose "$PARI_URL3/$PARI_VERSION.tar.gz"
 
 # Install
 tar xzf "$PARI_VERSION.tar.gz"
 cd "$PARI_VERSION"
-./Configure --prefix=/usr --datadir=/usr/paridata
+./Configure --prefix=/usr
 make gp
 sudo make install