[PATCH 1/5] t7004: factor out gpg setup

[Jeff King <peff@peff.net>]

Other test scripts may want to look at or verify signed
tags, and the setup is non-trivial. Let's factor this out
into lib-gpg.sh for other tests to use.

Signed-off-by: Jeff King <peff@peff.net>
---
Similar to the one I sent out earlier, but in that one I accidentally
did:

  . ../lib-gpg.sh

which is not right. If --root is used for the test script, then ".." is
not necessarily the right place to find the lib-gpg script. This fixes
it to use $TEST_DIRECTORY.

 t/lib-gpg.sh                     |   26 ++++++++++++++++++++++++++
 t/{t7004 => lib-gpg}/pubring.gpg |  Bin 1164 -> 1164 bytes
 t/{t7004 => lib-gpg}/random_seed |  Bin 600 -> 600 bytes
 t/{t7004 => lib-gpg}/secring.gpg |  Bin 1237 -> 1237 bytes
 t/{t7004 => lib-gpg}/trustdb.gpg |  Bin 1280 -> 1280 bytes
 t/t7004-tag.sh                   |   29 +----------------------------
 6 files changed, 27 insertions(+), 28 deletions(-)
 create mode 100755 t/lib-gpg.sh
 rename t/{t7004 => lib-gpg}/pubring.gpg (100%)
 rename t/{t7004 => lib-gpg}/random_seed (100%)
 rename t/{t7004 => lib-gpg}/secring.gpg (100%)
 rename t/{t7004 => lib-gpg}/trustdb.gpg (100%)

diff --git a/t/lib-gpg.sh b/t/lib-gpg.sh
new file mode 100755
index 0000000..28463fb
--- /dev/null
+++ b/t/lib-gpg.sh
@@ -0,0 +1,26 @@
+#!/bin/sh
+
+gpg_version=`gpg --version 2>&1`
+if test $? = 127; then
+	say "You do not seem to have gpg installed"
+else
+	# As said here: http://www.gnupg.org/documentation/faqs.html#q6.19
+	# the gpg version 1.0.6 didn't parse trust packets correctly, so for
+	# that version, creation of signed tags using the generated key fails.
+	case "$gpg_version" in
+	'gpg (GnuPG) 1.0.6'*)
+		say "Your version of gpg (1.0.6) is too buggy for testing"
+		;;
+	*)
+		# key generation info: gpg --homedir t/lib-gpg --gen-key
+		# Type DSA and Elgamal, size 2048 bits, no expiration date.
+		# Name and email: C O Mitter <committer@example.com>
+		# No password given, to enable non-interactive operation.
+		cp -R "$TEST_DIRECTORY"/lib-gpg ./gpghome
+		chmod 0700 gpghome
+		GNUPGHOME="$(pwd)/gpghome"
+		export GNUPGHOME
+		test_set_prereq GPG
+		;;
+	esac
+fi
diff --git a/t/t7004/pubring.gpg b/t/lib-gpg/pubring.gpg
similarity index 100%
rename from t/t7004/pubring.gpg
rename to t/lib-gpg/pubring.gpg
diff --git a/t/t7004/random_seed b/t/lib-gpg/random_seed
similarity index 100%
rename from t/t7004/random_seed
rename to t/lib-gpg/random_seed
diff --git a/t/t7004/secring.gpg b/t/lib-gpg/secring.gpg
similarity index 100%
rename from t/t7004/secring.gpg
rename to t/lib-gpg/secring.gpg
diff --git a/t/t7004/trustdb.gpg b/t/lib-gpg/trustdb.gpg
similarity index 100%
rename from t/t7004/trustdb.gpg
rename to t/lib-gpg/trustdb.gpg
diff --git a/t/t7004-tag.sh b/t/t7004-tag.sh
index 097ce2b..e93ac73 100755
--- a/t/t7004-tag.sh
+++ b/t/t7004-tag.sh
@@ -8,6 +8,7 @@ test_description='git tag
 Tests for operations with tags.'
 
 . ./test-lib.sh
+. "$TEST_DIRECTORY"/lib-gpg.sh
 
 # creating and listing lightweight tags:
 
@@ -585,24 +586,6 @@ test_expect_success \
 	test_cmp expect actual
 '
 
-# subsequent tests require gpg; check if it is available
-gpg --version >/dev/null 2>/dev/null
-if [ $? -eq 127 ]; then
-	say "# gpg not found - skipping tag signing and verification tests"
-else
-	# As said here: http://www.gnupg.org/documentation/faqs.html#q6.19
-	# the gpg version 1.0.6 didn't parse trust packets correctly, so for
-	# that version, creation of signed tags using the generated key fails.
-	case "$(gpg --version)" in
-	'gpg (GnuPG) 1.0.6'*)
-		say "Skipping signed tag tests, because a bug in 1.0.6 version"
-		;;
-	*)
-		test_set_prereq GPG
-		;;
-	esac
-fi
-
 # trying to verify annotated non-signed tags:
 
 test_expect_success GPG \
@@ -625,16 +608,6 @@ test_expect_success GPG \
 
 # creating and verifying signed tags:
 
-# key generation info: gpg --homedir t/t7004 --gen-key
-# Type DSA and Elgamal, size 2048 bits, no expiration date.
-# Name and email: C O Mitter <committer@example.com>
-# No password given, to enable non-interactive operation.
-
-cp -R "$TEST_DIRECTORY"/t7004 ./gpghome
-chmod 0700 gpghome
-GNUPGHOME="$(pwd)/gpghome"
-export GNUPGHOME
-
 get_tag_header signed-tag $commit commit $time >expect
 echo 'A signed tag message' >>expect
 echo '-----BEGIN PGP SIGNATURE-----' >>expect
-- 
1.7.6.10.g62f04