diff options
Diffstat (limited to 'Tools/scripts/hackage-get-latest-version.sh')
| -rwxr-xr-x | Tools/scripts/hackage-get-latest-version.sh | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/Tools/scripts/hackage-get-latest-version.sh b/Tools/scripts/hackage-get-latest-version.sh new file mode 100755 index 000000000000..3ad21fcbd73a --- /dev/null +++ b/Tools/scripts/hackage-get-latest-version.sh @@ -0,0 +1,49 @@ +#!/bin/sh +# +# MAINTAINER: yuri@FreeBSD.org + +set -e +set -o pipefail + +export LC_ALL=C + +## +## hackage-get-latest-version.sh: retrieves the latest version of a given Haskell package as registered on https://hackage.haskell.org +## + +# args + +PACKAGE_NAME="$1" + +if [ -z "$PACKAGE_NAME" ]; then + echo "Usage: $0 <package-name>" + echo "Example: $0 cryptol" + echo "Example: $0 ShellCheck" + exit 1 +fi + +# check that packaged dependencies are installed + +for dep in curl jq version_sort; do + if ! which -s $dep; then + echo "error: the '$dep' dependency is missing" + if [ $dep = "curl" ]; then + echo "... please install the 'curl' package" + elif [ $dep = "jq" ]; then + echo "... please install the 'jq' package" + elif [ $dep = "version_sort" ]; then + echo "... please install the 'libversion' package" + fi + exit 1 + fi +done + + +# MAIN + +curl -H "Accept: application/json" https://hackage.haskell.org/package/$PACKAGE_NAME 2>/dev/null | + grep -v "Package not found: No such package in package index" | + jq -r 'keys[]' | + version_sort | + tail -1 || + ! echo "failed to find the Haskell package '$PACKAGE_NAME'" |