git-commit-vandalism/t/lib-gpg.sh
Johannes Schindelin 2b60649113 tests: increase the verbosity of the GPG-related prereqs
Especially when debugging a test failure that can only be reproduced in
the CI build (e.g. when the developer has no access to a macOS machine
other than running the tests on a macOS build agent), output should not
be suppressed.

In the instance of `hi/gpg-prefer-check-signature`, where one
GPG-related test failed for no apparent reason, the entire output of
`gpg` and `gpgsm` was suppressed, even in verbose mode, leaving
interested readers no clue what was going wrong.

Let's fix this by no longer redirecting the output not to `/dev/null`.
This is now possible because the affected prereqs were turned into lazy
ones (and are therefore evaluated via `test_eval_` which respects the
`--verbose` option).

Note that we _still_ redirect `stdout` to `/dev/null` for those commands
that sign their `stdin`, as the output would be binary (and useless
anyway, because the reader would not have anything against which to
compare the output).

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-03-26 13:36:54 -07:00

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# We always set GNUPGHOME, even if no usable GPG was found, as
#
# - It does not hurt, and
#
# - we cannot set global environment variables in lazy prereqs because they are
# executed in an eval'ed subshell that changes the working directory to a
# temporary one.
GNUPGHOME="$PWD/gpghome"
export GNUPGHOME
test_lazy_prereq GPG '
gpg_version=$(gpg --version 2>&1)
test $? != 127 || exit 1
# As said here: http://www.gnupg.org/documentation/faqs.html#q6.19
# the gpg version 1.0.6 did not parse trust packets correctly, so for
# that version, creation of signed tags using the generated key fails.
case "$gpg_version" in
"gpg (GnuPG) 1.0.6"*)
say "Your version of gpg (1.0.6) is too buggy for testing"
exit 1
;;
*)
# Available key info:
# * Type DSA and Elgamal, size 2048 bits, no expiration date,
# name and email: C O Mitter <committer@example.com>
# * Type RSA, size 2048 bits, no expiration date,
# name and email: Eris Discordia <discord@example.net>
# No password given, to enable non-interactive operation.
# To generate new key:
# gpg --homedir /tmp/gpghome --gen-key
# To write armored exported key to keyring:
# gpg --homedir /tmp/gpghome --export-secret-keys \
# --armor 0xDEADBEEF >> lib-gpg/keyring.gpg
# gpg --homedir /tmp/gpghome --export \
# --armor 0xDEADBEEF >> lib-gpg/keyring.gpg
# To export ownertrust:
# gpg --homedir /tmp/gpghome --export-ownertrust \
# > lib-gpg/ownertrust
mkdir "$GNUPGHOME" &&
chmod 0700 "$GNUPGHOME" &&
(gpgconf --kill gpg-agent || : ) &&
gpg --homedir "${GNUPGHOME}" --import \
"$TEST_DIRECTORY"/lib-gpg/keyring.gpg &&
gpg --homedir "${GNUPGHOME}" --import-ownertrust \
"$TEST_DIRECTORY"/lib-gpg/ownertrust &&
gpg --homedir "${GNUPGHOME}" </dev/null >/dev/null \
--sign -u committer@example.com
;;
esac
'
test_lazy_prereq GPGSM '
test_have_prereq GPG &&
# Available key info:
# * see t/lib-gpg/gpgsm-gen-key.in
# To generate new certificate:
# * no passphrase
# gpgsm --homedir /tmp/gpghome/ \
# -o /tmp/gpgsm.crt.user \
# --generate-key \
# --batch t/lib-gpg/gpgsm-gen-key.in
# To import certificate:
# gpgsm --homedir /tmp/gpghome/ \
# --import /tmp/gpgsm.crt.user
# To export into a .p12 we can later import:
# gpgsm --homedir /tmp/gpghome/ \
# -o t/lib-gpg/gpgsm_cert.p12 \
# --export-secret-key-p12 "committer@example.com"
echo | gpgsm --homedir "${GNUPGHOME}" \
--passphrase-fd 0 --pinentry-mode loopback \
--import "$TEST_DIRECTORY"/lib-gpg/gpgsm_cert.p12 &&
gpgsm --homedir "${GNUPGHOME}" -K |
grep fingerprint: |
cut -d" " -f4 |
tr -d "\\n" >"${GNUPGHOME}/trustlist.txt" &&
echo " S relax" >>"${GNUPGHOME}/trustlist.txt" &&
echo hello | gpgsm --homedir "${GNUPGHOME}" >/dev/null \
-u committer@example.com -o /dev/null --sign -
'
test_lazy_prereq RFC1991 '
test_have_prereq GPG &&
echo | gpg --homedir "${GNUPGHOME}" -b --rfc1991 >/dev/null
'
sanitize_pgp() {
perl -ne '
/^-----END PGP/ and $in_pgp = 0;
print unless $in_pgp;
/^-----BEGIN PGP/ and $in_pgp = 1;
'
}