Add scripts/port-checksums.sh

Add a script to generate the `checksums` line in Portfiles.

1 files changed, 27 insertions, 0 deletions

diff --git a/scripts/port-checksums.sh b/scripts/port-checksums.sh
new file mode 100755
index 0000000..9338cb7
--- /dev/null
+++ b/scripts/port-checksums.sh
@@ -0,0 +1,27 @@
+#!/bin/sh
+
+# port-checksums.sh
+#
+# Output MacPorts Portfile checksums for a file.
+#
+# Example:
+# checksums           rmd160  c799daf7113027e02eb2e931d61a1936323ec044 \
+#                     sha256  f28dbeef1de974fa6c9e07ba78179a1dcf75fe5c1342cabde135e7d928045aee \
+#                     size    23341
+
+# TODO: --append argument for `checksums-append`
+# TODO: Help output
+# TODO: Allow reading from standard input
+# TODO: support multiple file inputs
+
+file="$1"
+
+rmd160="$(openssl dgst -sha256 "$file" | cut -d ' ' -f 2)"
+sha256="$(shasum -a 256 "$file" | cut -d ' ' -f 1)"
+size="$(wc -c "$file" | awk '{ print $1 }')"
+
+cat <<EOF
+checksums           rmd160  ${rmd160} \\
+                    sha256  ${sha256} \\
+                    size    ${size}
+EOF