Re: [PATCH] contrib/test-hg*.sh: Do not use PYTHON_PATH
From: Junio C Hamano <hidden>
Date: 2016-06-15 22:56:53
Torsten Bögershausen [off-list ref] writes:
The test cases in contrib/remote-helpers use mercurial and python. Before the tests are run, we check if python can import "mercurial" and "hggit". To run this check, python pointed out by PYTHON_PATH is used. This may not work when different python binaries exist, and PYTHON_PATH is not set: Makefile sets it to the default /usr/bin/python The PATH may point out e.g. /sw/bin/python. When /sw/bin/python has the mercurial module installed, but /usr/bin/python has not, the test will not be run. Git respects PYTHON_PATH, hg does not.
The above problem analysis looks sensible.
Use python instead of $PYTHON_PATH to check for installed modules.
But I am not sure if I agree with the solution. Going back to the analysis, I find this:
This may not work when different python binaries exist, and PYTHON_PATH is not set:
Isn't the real problem that PYTHON_PATH is not set to point at the instance of a python with mercurial module for it? Why not make sure it is set and can be seen by tests correctly? I do not offhand know where in the contrib/remote-helpers/ part the user is expected to tweak PYTHON_PATH variable, and if the variable is correctly arranged to be exported to the environment when running the tests, but your problem analysis tells me that that is the part you would want to fix. If a default-fallback value for PYTHON_PATH is the easiest solution to the problem, you could even solve that in the "export it while running the tests" logic. Perhaps adding PYTHON_PATH ?= python export PYTHON_PATH to contrib/remote-helpers/Makefile and changing nothing else would be a starting point for a more reasonable fix to the issue?
While at it, split exportX=Y into 2 lines
That is an important portability fix, but as you said "while at it", it is orthogonal.
quoted hunk
Signed-off-by: Torsten Bögershausen <redacted> --- contrib/remote-helpers/test-hg-bidi.sh | 14 +++++++++----- contrib/remote-helpers/test-hg-hg-git.sh | 12 +++++++----- contrib/remote-helpers/test-hg.sh | 2 +- 3 files changed, 17 insertions(+), 11 deletions(-)diff --git a/contrib/remote-helpers/test-hg-bidi.sh b/contrib/remote-helpers/test-hg-bidi.sh index f368953..9f4a430 100755 --- a/contrib/remote-helpers/test-hg-bidi.sh +++ b/contrib/remote-helpers/test-hg-bidi.sh@@ -15,7 +15,7 @@ if ! test_have_prereq PYTHON; then test_done fi -if ! "$PYTHON_PATH" -c 'import mercurial'; then +if ! python -c 'import mercurial'; then skip_all='skipping remote-hg tests; mercurial not available' test_done fi@@ -68,10 +68,13 @@ setup () { ) >> "$HOME"/.hgrc && git config --global remote-hg.hg-git-compat true - export HGEDITOR=/usr/bin/true + HGEDITOR=/usr/bin/true + export HGEDITOR - export GIT_AUTHOR_DATE="2007-01-01 00:00:00 +0230" - export GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE" + GIT_AUTHOR_DATE="2007-01-01 00:00:00 +0230" + GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE" + + export GIT_AUTHOR_DATE GIT_COMMITTER_DATE } setup@@ -88,7 +91,8 @@ test_expect_success 'encoding' ' git add alpha && git commit -m "add älphà" && - export GIT_AUTHOR_NAME="tést èncödîng" && + GIT_AUTHOR_NAME="tést èncödîng" && + export GIT_AUTHOR_NAME && echo beta > beta && git add beta && git commit -m "add beta" &&diff --git a/contrib/remote-helpers/test-hg-hg-git.sh b/contrib/remote-helpers/test-hg-hg-git.sh index 253e65a..5414f81 100755 --- a/contrib/remote-helpers/test-hg-hg-git.sh +++ b/contrib/remote-helpers/test-hg-hg-git.sh@@ -15,12 +15,12 @@ if ! test_have_prereq PYTHON; then test_done fi -if ! "$PYTHON_PATH" -c 'import mercurial'; then +if ! python -c 'import mercurial'; then skip_all='skipping remote-hg tests; mercurial not available' test_done fi -if ! "$PYTHON_PATH" -c 'import hggit'; then +if ! python -c 'import hggit'; then skip_all='skipping remote-hg tests; hg-git not available' test_done fi@@ -103,10 +103,12 @@ setup () { git config --global receive.denycurrentbranch warn git config --global remote-hg.hg-git-compat true - export HGEDITOR=/usr/bin/true + HGEDITOR=/usr/bin/true + export HGEDITOR - export GIT_AUTHOR_DATE="2007-01-01 00:00:00 +0230" - export GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE" + GIT_AUTHOR_DATE="2007-01-01 00:00:00 +0230" + GIT_COMMITTER_DATE="$GIT_AUTHOR_DATE" + export GIT_AUTHOR_DATE GIT_COMMITTER_DATE } setupdiff --git a/contrib/remote-helpers/test-hg.sh b/contrib/remote-helpers/test-hg.sh index d5b8730..8614fa1 100755 --- a/contrib/remote-helpers/test-hg.sh +++ b/contrib/remote-helpers/test-hg.sh@@ -15,7 +15,7 @@ if ! test_have_prereq PYTHON; then test_done fi -if ! "$PYTHON_PATH" -c 'import mercurial'; then +if ! python -c 'import mercurial'; then skip_all='skipping remote-hg tests; mercurial not available' test_done fi