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-rwxr-xr-xt/t2026-prune-linked-checkouts.sh96
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diff --git a/t/t2026-prune-linked-checkouts.sh b/t/t2026-prune-linked-checkouts.sh
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+#!/bin/sh
+
+test_description='prune $GIT_DIR/worktrees'
+
+. ./test-lib.sh
+
+test_expect_success initialize '
+ git commit --allow-empty -m init
+'
+
+test_expect_success 'prune --worktrees on normal repo' '
+ git prune --worktrees &&
+ test_must_fail git prune --worktrees abc
+'
+
+test_expect_success 'prune files inside $GIT_DIR/worktrees' '
+ mkdir .git/worktrees &&
+ : >.git/worktrees/abc &&
+ git prune --worktrees --verbose >actual &&
+ cat >expect <<EOF &&
+Removing worktrees/abc: not a valid directory
+EOF
+ test_i18ncmp expect actual &&
+ ! test -f .git/worktrees/abc &&
+ ! test -d .git/worktrees
+'
+
+test_expect_success 'prune directories without gitdir' '
+ mkdir -p .git/worktrees/def/abc &&
+ : >.git/worktrees/def/def &&
+ cat >expect <<EOF &&
+Removing worktrees/def: gitdir file does not exist
+EOF
+ git prune --worktrees --verbose >actual &&
+ test_i18ncmp expect actual &&
+ ! test -d .git/worktrees/def &&
+ ! test -d .git/worktrees
+'
+
+test_expect_success SANITY 'prune directories with unreadable gitdir' '
+ mkdir -p .git/worktrees/def/abc &&
+ : >.git/worktrees/def/def &&
+ : >.git/worktrees/def/gitdir &&
+ chmod u-r .git/worktrees/def/gitdir &&
+ git prune --worktrees --verbose >actual &&
+ test_i18ngrep "Removing worktrees/def: unable to read gitdir file" actual &&
+ ! test -d .git/worktrees/def &&
+ ! test -d .git/worktrees
+'
+
+test_expect_success 'prune directories with invalid gitdir' '
+ mkdir -p .git/worktrees/def/abc &&
+ : >.git/worktrees/def/def &&
+ : >.git/worktrees/def/gitdir &&
+ git prune --worktrees --verbose >actual &&
+ test_i18ngrep "Removing worktrees/def: invalid gitdir file" actual &&
+ ! test -d .git/worktrees/def &&
+ ! test -d .git/worktrees
+'
+
+test_expect_success 'prune directories with gitdir pointing to nowhere' '
+ mkdir -p .git/worktrees/def/abc &&
+ : >.git/worktrees/def/def &&
+ echo "$(pwd)"/nowhere >.git/worktrees/def/gitdir &&
+ git prune --worktrees --verbose >actual &&
+ test_i18ngrep "Removing worktrees/def: gitdir file points to non-existent location" actual &&
+ ! test -d .git/worktrees/def &&
+ ! test -d .git/worktrees
+'
+
+test_expect_success 'not prune locked checkout' '
+ test_when_finished rm -r .git/worktrees &&
+ mkdir -p .git/worktrees/ghi &&
+ : >.git/worktrees/ghi/locked &&
+ git prune --worktrees &&
+ test -d .git/worktrees/ghi
+'
+
+test_expect_success 'not prune recent checkouts' '
+ test_when_finished rm -r .git/worktrees &&
+ mkdir zz &&
+ mkdir -p .git/worktrees/jlm &&
+ echo "$(pwd)"/zz >.git/worktrees/jlm/gitdir &&
+ rmdir zz &&
+ git prune --worktrees --verbose --expire=2.days.ago &&
+ test -d .git/worktrees/jlm
+'
+
+test_expect_success 'not prune proper checkouts' '
+ test_when_finished rm -r .git/worktrees &&
+ git checkout "--to=$PWD/nop" --detach master &&
+ git prune --worktrees &&
+ test -d .git/worktrees/nop
+'
+
+test_done