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-rwxr-xr-xt/t0000-basic.sh29
1 files changed, 29 insertions, 0 deletions
diff --git a/t/t0000-basic.sh b/t/t0000-basic.sh
index 22bdaca..bc3e711 100755
--- a/t/t0000-basic.sh
+++ b/t/t0000-basic.sh
@@ -17,8 +17,37 @@ IDs. When object ID computation changes, like in the previous case of
swapping compression and hashing order, the person who is making the
modification *should* take notice and update the test vectors here.
'
+
+################################################################
+# It appears that people are getting bitten by not installing
+# 'merge' (usually part of RCS package in binary distributions)
+# or have too old python without subprocess. Check them and error
+# out before running any tests. Also catch the bogosity of trying
+# to run tests without building while we are at it.
+
+../git >/dev/null
+if test $? != 1
+then
+ echo >&2 'You do not seem to have built git yet.'
+ exit 1
+fi
+
+merge >/dev/null 2>/dev/null
+if test $? == 127
+then
+ echo >&2 'You do not seem to have "merge" installed.
+Please check INSTALL document.'
+ exit 1
+fi
+
. ./test-lib.sh
+"$PYTHON" -c 'import subprocess' || {
+ echo >&2 'Your python seem to lack "subprocess" module.
+Please check INSTALL document.'
+ exit 1
+}
+
################################################################
# init-db has been done in an empty repository.
# make sure it is empty.