diff options
Diffstat (limited to 't/t7601-merge-pull-config.sh')
| -rwxr-xr-x | t/t7601-merge-pull-config.sh | 266 |
1 files changed, 245 insertions, 21 deletions
diff --git a/t/t7601-merge-pull-config.sh b/t/t7601-merge-pull-config.sh index 52e8ccc933..bd238d89b0 100755 --- a/t/t7601-merge-pull-config.sh +++ b/t/t7601-merge-pull-config.sh @@ -2,7 +2,7 @@ test_description='git merge -Testing pull.* configuration parsing.' +Testing pull.* configuration parsing and other things.' . ./test-lib.sh @@ -27,120 +27,324 @@ test_expect_success 'setup' ' git tag c3 ' -test_expect_success 'pull.rebase not set' ' +test_expect_success 'pull.rebase not set, ff possible' ' git reset --hard c0 && git pull . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and pull.ff=true' ' git reset --hard c0 && test_config pull.ff true && git pull . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and pull.ff=false' ' git reset --hard c0 && test_config pull.ff false && git pull . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and pull.ff=only' ' git reset --hard c0 && test_config pull.ff only && git pull . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --rebase given' ' git reset --hard c0 && git pull --rebase . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --no-rebase given' ' git reset --hard c0 && git pull --no-rebase . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --ff given' ' git reset --hard c0 && git pull --ff . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --no-ff given' ' git reset --hard c0 && git pull --no-ff . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --ff-only given' ' git reset --hard c0 && git pull --ff-only . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set (not-fast-forward)' ' git reset --hard c2 && - git -c color.advice=always pull . c1 2>err && + test_must_fail git -c color.advice=always pull . c1 2>err && test_decode_color <err >decoded && test_i18ngrep "<YELLOW>hint: " decoded && - test_i18ngrep "Pulling without specifying how to reconcile" decoded + test_i18ngrep "You have divergent branches" decoded ' test_expect_success 'pull.rebase not set and pull.ff=true (not-fast-forward)' ' git reset --hard c2 && test_config pull.ff true && git pull . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and pull.ff=false (not-fast-forward)' ' git reset --hard c2 && test_config pull.ff false && git pull . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and pull.ff=only (not-fast-forward)' ' git reset --hard c2 && test_config pull.ff only && test_must_fail git pull . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --rebase given (not-fast-forward)' ' git reset --hard c2 && git pull --rebase . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --no-rebase given (not-fast-forward)' ' git reset --hard c2 && git pull --no-rebase . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --ff given (not-fast-forward)' ' git reset --hard c2 && git pull --ff . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --no-ff given (not-fast-forward)' ' git reset --hard c2 && git pull --no-ff . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err ' test_expect_success 'pull.rebase not set and --ff-only given (not-fast-forward)' ' git reset --hard c2 && test_must_fail git pull --ff-only . c1 2>err && - test_i18ngrep ! "Pulling without specifying how to reconcile" err + test_i18ngrep ! "You have divergent branches" err +' + +test_does_rebase () { + git reset --hard c2 && + git "$@" . c1 && + # Check that we actually did a rebase + git rev-list --count HEAD >actual && + git rev-list --merges --count HEAD >>actual && + test_write_lines 3 0 >expect && + test_cmp expect actual && + rm actual expect +} + +# Prefers merge over fast-forward +test_does_merge_when_ff_possible () { + git reset --hard c0 && + git "$@" . c1 && + # Check that we actually did a merge + git rev-list --count HEAD >actual && + git rev-list --merges --count HEAD >>actual && + test_write_lines 3 1 >expect && + test_cmp expect actual && + rm actual expect +} + +# Prefers fast-forward over merge or rebase +test_does_fast_forward () { + git reset --hard c0 && + git "$@" . c1 && + + # Check that we did not get any merges + git rev-list --count HEAD >actual && + git rev-list --merges --count HEAD >>actual && + test_write_lines 2 0 >expect && + test_cmp expect actual && + + # Check that we ended up at c1 + git rev-parse HEAD >actual && + git rev-parse c1^{commit} >expect && + test_cmp actual expect && + + # Remove temporary files + rm actual expect +} + +# Doesn't fail when fast-forward not possible; does a merge +test_falls_back_to_full_merge () { + git reset --hard c2 && + git "$@" . c1 && + # Check that we actually did a merge + git rev-list --count HEAD >actual && + git rev-list --merges --count HEAD >>actual && + test_write_lines 4 1 >expect && + test_cmp expect actual && + rm actual expect +} + +# Attempts fast forward, which is impossible, and bails +test_attempts_fast_forward () { + git reset --hard c2 && + test_must_fail git "$@" . c1 2>err && + test_i18ngrep "Not possible to fast-forward, aborting" err +} + +# +# Group 1: Interaction of --ff-only with --[no-]rebase +# (And related interaction of pull.ff=only with pull.rebase) +# +test_expect_success '--ff-only overrides --rebase' ' + test_attempts_fast_forward pull --rebase --ff-only +' + +test_expect_success '--ff-only overrides --rebase even if first' ' + test_attempts_fast_forward pull --ff-only --rebase +' + +test_expect_success '--ff-only overrides --no-rebase' ' + test_attempts_fast_forward pull --ff-only --no-rebase +' + +test_expect_success 'pull.ff=only overrides pull.rebase=true' ' + test_attempts_fast_forward -c pull.ff=only -c pull.rebase=true pull +' + +test_expect_success 'pull.ff=only overrides pull.rebase=false' ' + test_attempts_fast_forward -c pull.ff=only -c pull.rebase=false pull +' + +# Group 2: --rebase=[!false] overrides --no-ff and --ff +# (And related interaction of pull.rebase=!false and pull.ff=!only) +test_expect_success '--rebase overrides --no-ff' ' + test_does_rebase pull --rebase --no-ff +' + +test_expect_success '--rebase overrides --ff' ' + test_does_rebase pull --rebase --ff +' + +test_expect_success '--rebase fast-forwards when possible' ' + test_does_fast_forward pull --rebase --ff +' + +test_expect_success 'pull.rebase=true overrides pull.ff=false' ' + test_does_rebase -c pull.rebase=true -c pull.ff=false pull +' + +test_expect_success 'pull.rebase=true overrides pull.ff=true' ' + test_does_rebase -c pull.rebase=true -c pull.ff=true pull +' + +# Group 3: command line flags take precedence over config +test_expect_success '--ff-only takes precedence over pull.rebase=true' ' + test_attempts_fast_forward -c pull.rebase=true pull --ff-only +' + +test_expect_success '--ff-only takes precedence over pull.rebase=false' ' + test_attempts_fast_forward -c pull.rebase=false pull --ff-only +' + +test_expect_success '--no-rebase takes precedence over pull.ff=only' ' + test_falls_back_to_full_merge -c pull.ff=only pull --no-rebase +' + +test_expect_success '--rebase takes precedence over pull.ff=only' ' + test_does_rebase -c pull.ff=only pull --rebase +' + +test_expect_success '--rebase overrides pull.ff=true' ' + test_does_rebase -c pull.ff=true pull --rebase +' + +test_expect_success '--rebase overrides pull.ff=false' ' + test_does_rebase -c pull.ff=false pull --rebase +' + +test_expect_success '--rebase overrides pull.ff unset' ' + test_does_rebase pull --rebase +' + +# Group 4: --no-rebase heeds pull.ff=!only or explict --ff or --no-ff + +test_expect_success '--no-rebase works with --no-ff' ' + test_does_merge_when_ff_possible pull --no-rebase --no-ff +' + +test_expect_success '--no-rebase works with --ff' ' + test_does_fast_forward pull --no-rebase --ff +' + +test_expect_success '--no-rebase does ff if pull.ff unset' ' + test_does_fast_forward pull --no-rebase +' + +test_expect_success '--no-rebase heeds pull.ff=true' ' + test_does_fast_forward -c pull.ff=true pull --no-rebase +' + +test_expect_success '--no-rebase heeds pull.ff=false' ' + test_does_merge_when_ff_possible -c pull.ff=false pull --no-rebase +' + +# Group 5: pull.rebase=!false in combination with --no-ff or --ff +test_expect_success 'pull.rebase=true and --no-ff' ' + test_does_rebase -c pull.rebase=true pull --no-ff +' + +test_expect_success 'pull.rebase=true and --ff' ' + test_does_rebase -c pull.rebase=true pull --ff +' + +test_expect_success 'pull.rebase=false and --no-ff' ' + test_does_merge_when_ff_possible -c pull.rebase=false pull --no-ff +' + +test_expect_success 'pull.rebase=false and --ff, ff possible' ' + test_does_fast_forward -c pull.rebase=false pull --ff +' + +test_expect_success 'pull.rebase=false and --ff, ff not possible' ' + test_falls_back_to_full_merge -c pull.rebase=false pull --ff +' + +# End of groupings for conflicting merge vs. rebase flags/options + +test_expect_success 'Multiple heads warns about inability to fast forward' ' + git reset --hard c1 && + test_must_fail git pull . c2 c3 2>err && + test_i18ngrep "You have divergent branches" err +' + +test_expect_success 'Multiple can never be fast forwarded' ' + git reset --hard c0 && + test_must_fail git -c pull.ff=only pull . c1 c2 c3 2>err && + test_i18ngrep ! "You have divergent branches" err && + # In addition to calling out "cannot fast-forward", we very much + # want the "multiple branches" piece to be called out to users. + test_i18ngrep "Cannot fast-forward to multiple branches" err +' + +test_expect_success 'Cannot rebase with multiple heads' ' + git reset --hard c0 && + test_must_fail git -c pull.rebase=true pull . c1 c2 c3 2>err && + test_i18ngrep ! "You have divergent branches" err && + test_i18ngrep "Cannot rebase onto multiple branches." err ' test_expect_success 'merge c1 with c2' ' @@ -183,6 +387,26 @@ test_expect_success 'pull prevents non-fast-forward with "only" in pull.ff' ' test_must_fail git pull . c3 ' +test_expect_success 'already-up-to-date pull succeeds with unspecified pull.ff' ' + git reset --hard c1 && + git pull . c0 && + test "$(git rev-parse HEAD)" = "$(git rev-parse c1)" +' + +test_expect_success 'already-up-to-date pull succeeds with "only" in pull.ff' ' + git reset --hard c1 && + test_config pull.ff only && + git pull . c0 && + test "$(git rev-parse HEAD)" = "$(git rev-parse c1)" +' + +test_expect_success 'already-up-to-date pull/rebase succeeds with "only" in pull.ff' ' + git reset --hard c1 && + test_config pull.ff only && + git -c pull.rebase=true pull . c0 && + test "$(git rev-parse HEAD)" = "$(git rev-parse c1)" +' + test_expect_success 'merge c1 with c2 (ours in pull.twohead)' ' git reset --hard c1 && git config pull.twohead ours && |