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[users/jgh/exim.git] / release-process / scripts / sign_exim_packages

diff --git a/release-process/scripts/sign_exim_packages b/release-process/scripts/sign_exim_packages
index a1d6282bb223d30be7d361d6c5b09ff008cf6f28..a504ea82637cb652013a05b3015ae55e7ab1c6cb 100755 (executable)
--- a/release-process/scripts/sign_exim_packages
+++ b/release-process/scripts/sign_exim_packages
@@ -1,15 +1,77 @@
-#!/bin/sh
+#!/bin/sh -eu
+
+# gpg signs all *.tar.* files under the release directory.
+# Invoke from that dir, or let the script try to figure it out for you.
+
+# Key used is from env var EXIM_KEY; if git config finds user.signingkey, then
+# that is the default.  You can set this per-repo with:
+#    git config --local user.signingkey SOME_IDENTIFIER

 #
 #

-# gpg signs all *.tar.* files under a given directory
-# key used set from env var EXIM_KEY, script defaults that to Nigel's.
+# If not set in git config then you _MUST_ set the env var.
+

 # woe betide the poor sod who does not use a gpg agent, so has
 # to enter their password for every file...
 # woe betide the poor sod who does not use a gpg agent, so has
 # to enter their password for every file...

+
+prog="$(basename "$0")"
+warn() { printf >&2 "%s: %s\n" "$prog" "$*" ; }
+
+: "${GPG_COMMAND:=gpg}"
+umask 022
+
+# We've always expected an explicit key for signing, instead of just using the
+# gnupg config.  It make sense to honor the git config value.  It makes sense
+# to honor env.  But git doesn't allow specifying multiple subkeys, it only
+# passes one -u option.
+# UID specs explicitly allow whitespace in several formats.
+# We have one scalar value, we're sh, we're not going to try using an array.

 #
 #

+# So if you want to sign with multiple subkeys, then set it up with multiple
+# local-user directives in ~/.gnupg/gpg.conf & set EXIM_KEY=default in environ.
+
+if repo_signing_key="$(git config user.signingkey)"; then
+       : "${EXIM_KEY:=$repo_signing_key}"
+else
+       if [ ".${EXIM_KEY:-}" = "." ]; then
+               warn "no EXIM_KEY found, trusting local gpg config"
+       fi
+fi
+
+case "${EXIM_KEY:-default}" in
+default|DEFAULT)
+       gpg_sign() { ${GPG_COMMAND} --detach-sig --armor "${1:?}" ; }
+       ;;
+*) 
+       gpg_sign() { ${GPG_COMMAND} --local-user "${EXIM_KEY}" --detach-sig --armor "${1:?}" ; }
+       ;;
+esac
+
+cd_to() { echo "Working in: $1"; cd "$1"; }

 
 

-dir=${1:?start directory}
+okay=false
+if [ -d ../../release-process ] && [ "${PWD##*/}" = "pkgs" ]; then
+       okay=true # we are in right dir
+elif [ -d release-process ]; then
+       b="$(find . -maxdepth 1 -name 'exim-packaging-*' | sort | tail -n 1)"
+       if [ ".$b" != "." ]; then
+               cd_to "$b/pkgs"
+               okay=true
+       fi
+fi
+if ! $okay; then
+       if [ -d "${1:?need a directory to look in}" ]; then
+               cd_to "$1"
+               shift
+       else
+               printf "%s: %s\n" >&2 "$(basename "$0")" "where should I be looking"
+               exit 1
+       fi
+fi

 
 

-: ${EXIM_KEY:=nigel@exim.org}
+# Assumes no whitespace (strictly, $IFS) in filenames, which we're okay with
+set $(find . -name '*.asc' -prune -o -type f -print | cut -c 3- | sort)

 
 

-find "$dir" \
-    -type f -name '*.tar.*' \
-    -exec gpg  --local-user ${EXIM_KEY} --detach-sig --armor {} \;
+for FILE
+do
+       echo "Signing: $FILE"
+       gpg_sign "$FILE"
+done