git/t/t5612-clone-refspec.sh
Junio C Hamano d39cab3989 Merge branch 'ab/fetch-tags-noclobber'
The rules used by "git push" and "git fetch" to determine if a ref
can or cannot be updated were inconsistent; specifically, fetching
to update existing tags were allowed even though tags are supposed
to be unmoving anchoring points.  "git fetch" was taught to forbid
updates to existing tags without the "--force" option.

* ab/fetch-tags-noclobber:
  fetch: stop clobbering existing tags without --force
  fetch: document local ref updates with/without --force
  push doc: correct lies about how push refspecs work
  push doc: move mention of "tag <tag>" later in the prose
  push doc: remove confusing mention of remote merger
  fetch tests: add a test for clobbering tag behavior
  push tests: use spaces in interpolated string
  push tests: make use of unused $1 in test description
  fetch: change "branch" to "reference" in --force -h output
2018-09-17 13:54:00 -07:00

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#!/bin/sh
test_description='test refspec written by clone-command'
. ./test-lib.sh
test_expect_success 'setup' '
# Make two branches, "master" and "side"
echo one >file &&
git add file &&
git commit -m one &&
echo two >file &&
git commit -a -m two &&
git tag two &&
echo three >file &&
git commit -a -m three &&
git checkout -b side &&
echo four >file &&
git commit -a -m four &&
git checkout master &&
git tag five &&
# default clone
git clone . dir_all &&
# default clone --no-tags
git clone --no-tags . dir_all_no_tags &&
# default --single that follows HEAD=master
git clone --single-branch . dir_master &&
# default --single that follows HEAD=master with no tags
git clone --single-branch --no-tags . dir_master_no_tags &&
# default --single that follows HEAD=side
git checkout side &&
git clone --single-branch . dir_side &&
# explicit --single that follows side
git checkout master &&
git clone --single-branch --branch side . dir_side2 &&
# default --single with --mirror
git clone --single-branch --mirror . dir_mirror &&
# default --single with --branch and --mirror
git clone --single-branch --mirror --branch side . dir_mirror_side &&
# --single that does not know what branch to follow
git checkout two^ &&
git clone --single-branch . dir_detached &&
# explicit --single with tag
git clone --single-branch --branch two . dir_tag &&
# explicit --single with tag and --no-tags
git clone --single-branch --no-tags --branch two . dir_tag_no_tags &&
# advance both "master" and "side" branches
git checkout side &&
echo five >file &&
git commit -a -m five &&
git checkout master &&
echo six >file &&
git commit -a -m six &&
# update tag
git tag -d two && git tag two
'
test_expect_success 'by default all branches will be kept updated' '
(
cd dir_all &&
git fetch &&
git for-each-ref refs/remotes/origin |
sed -e "/HEAD$/d" \
-e "s|/remotes/origin/|/heads/|" >../actual
) &&
# follow both master and side
git for-each-ref refs/heads >expect &&
test_cmp expect actual
'
test_expect_success 'by default no tags will be kept updated' '
(
cd dir_all &&
git fetch &&
git for-each-ref refs/tags >../actual
) &&
git for-each-ref refs/tags >expect &&
test_must_fail test_cmp expect actual &&
test_line_count = 2 actual
'
test_expect_success 'clone with --no-tags' '
(
cd dir_all_no_tags &&
git fetch &&
git for-each-ref refs/tags >../actual
) &&
test_must_be_empty actual
'
test_expect_success '--single-branch while HEAD pointing at master' '
(
cd dir_master &&
git fetch --force &&
git for-each-ref refs/remotes/origin |
sed -e "/HEAD$/d" \
-e "s|/remotes/origin/|/heads/|" >../actual
) &&
# only follow master
git for-each-ref refs/heads/master >expect &&
# get & check latest tags
test_cmp expect actual &&
(
cd dir_master &&
git fetch --tags --force &&
git for-each-ref refs/tags >../actual
) &&
git for-each-ref refs/tags >expect &&
test_cmp expect actual &&
test_line_count = 2 actual
'
test_expect_success '--single-branch while HEAD pointing at master and --no-tags' '
(
cd dir_master_no_tags &&
git fetch &&
git for-each-ref refs/remotes/origin |
sed -e "/HEAD$/d" \
-e "s|/remotes/origin/|/heads/|" >../actual
) &&
# only follow master
git for-each-ref refs/heads/master >expect &&
test_cmp expect actual &&
# get tags (noop)
(
cd dir_master_no_tags &&
git fetch &&
git for-each-ref refs/tags >../actual
) &&
test_must_be_empty actual &&
test_line_count = 0 actual &&
# get tags with --tags overrides tagOpt
(
cd dir_master_no_tags &&
git fetch --tags &&
git for-each-ref refs/tags >../actual
) &&
git for-each-ref refs/tags >expect &&
test_cmp expect actual &&
test_line_count = 2 actual
'
test_expect_success '--single-branch while HEAD pointing at side' '
(
cd dir_side &&
git fetch &&
git for-each-ref refs/remotes/origin |
sed -e "/HEAD$/d" \
-e "s|/remotes/origin/|/heads/|" >../actual
) &&
# only follow side
git for-each-ref refs/heads/side >expect &&
test_cmp expect actual
'
test_expect_success '--single-branch with explicit --branch side' '
(
cd dir_side2 &&
git fetch &&
git for-each-ref refs/remotes/origin |
sed -e "/HEAD$/d" \
-e "s|/remotes/origin/|/heads/|" >../actual
) &&
# only follow side
git for-each-ref refs/heads/side >expect &&
test_cmp expect actual
'
test_expect_success '--single-branch with explicit --branch with tag fetches updated tag' '
(
cd dir_tag &&
git fetch &&
git for-each-ref refs/tags >../actual
) &&
git for-each-ref refs/tags >expect &&
test_cmp expect actual
'
test_expect_success '--single-branch with explicit --branch with tag fetches updated tag despite --no-tags' '
(
cd dir_tag_no_tags &&
git fetch &&
git for-each-ref refs/tags >../actual
) &&
git for-each-ref refs/tags/two >expect &&
test_cmp expect actual &&
test_line_count = 1 actual
'
test_expect_success '--single-branch with --mirror' '
(
cd dir_mirror &&
git fetch &&
git for-each-ref refs > ../actual
) &&
git for-each-ref refs >expect &&
test_cmp expect actual
'
test_expect_success '--single-branch with explicit --branch and --mirror' '
(
cd dir_mirror_side &&
git fetch &&
git for-each-ref refs > ../actual
) &&
git for-each-ref refs >expect &&
test_cmp expect actual
'
test_expect_success '--single-branch with detached' '
(
cd dir_detached &&
git fetch &&
git for-each-ref refs/remotes/origin |
sed -e "/HEAD$/d" \
-e "s|/remotes/origin/|/heads/|" >../actual
) &&
# nothing
test_must_be_empty actual
'
test_done