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1#!/bin/sh
2
3test_description='git command aliasing'
4
5. ./test-lib.sh
6
7test_expect_success 'nested aliases - internal execution' '
8 git config alias.nested-internal-1 nested-internal-2 &&
9 git config alias.nested-internal-2 status &&
10 git nested-internal-1 >output &&
11 test_grep "^On branch " output
12'
13
14test_expect_success 'nested aliases - mixed execution' '
15 git config alias.nested-external-1 nested-external-2 &&
16 git config alias.nested-external-2 "!git nested-external-3" &&
17 git config alias.nested-external-3 status &&
18 git nested-external-1 >output &&
19 test_grep "^On branch " output
20'
21
22test_expect_success 'looping aliases - internal execution' '
23 git config alias.loop-internal-1 loop-internal-2 &&
24 git config alias.loop-internal-2 loop-internal-3 &&
25 git config alias.loop-internal-3 loop-internal-2 &&
26 test_must_fail git loop-internal-1 2>output &&
27 test_grep "^fatal: alias loop detected: expansion of" output
28'
29
30test_expect_success 'looping aliases - deprecated builtins' '
31 test_config alias.whatchanged pack-redundant &&
32 test_config alias.pack-redundant whatchanged &&
33 cat >expect <<-EOF &&
34 ${SQ}whatchanged${SQ} is aliased to ${SQ}pack-redundant${SQ}
35 ${SQ}pack-redundant${SQ} is aliased to ${SQ}whatchanged${SQ}
36 fatal: alias loop detected: expansion of ${SQ}whatchanged${SQ} does not terminate:
37 whatchanged <==
38 pack-redundant ==>
39 EOF
40 test_must_fail git whatchanged -h 2>actual &&
41 test_cmp expect actual
42'
43
44# This test is disabled until external loops are fixed, because would block
45# the test suite for a full minute.
46#
47#test_expect_failure 'looping aliases - mixed execution' '
48# git config alias.loop-mixed-1 loop-mixed-2 &&
49# git config alias.loop-mixed-2 "!git loop-mixed-1" &&
50# test_must_fail git loop-mixed-1 2>output &&
51# test_grep "^fatal: alias loop detected: expansion of" output
52#'
53
54test_expect_success 'run-command formats empty args properly' '
55 test_must_fail env GIT_TRACE=1 git frotz a "" b " " c 2>actual.raw &&
56 sed -ne "/run_command:/s/.*trace: run_command: //p" actual.raw >actual &&
57 echo "git-frotz a '\'''\'' b '\'' '\'' c" >expect &&
58 test_cmp expect actual
59'
60
61test_expect_success 'tracing a shell alias with arguments shows trace of prepared command' '
62 cat >expect <<-EOF &&
63 trace: start_command: SHELL -c ${SQ}echo \$* "\$@"${SQ} ${SQ}echo \$*${SQ} arg
64 EOF
65 git config alias.echo "!echo \$*" &&
66 env GIT_TRACE=1 git echo arg 2>output &&
67 # redact platform differences
68 sed -n -e "s/^\(trace: start_command:\) .* -c /\1 SHELL -c /p" output >actual &&
69 test_cmp expect actual
70'
71
72can_alias_deprecated_builtin () {
73 cmd="$1" &&
74 # some git(1) commands will fail for `-h` (the case for
75 # git-status as of 2025-09-07)
76 test_might_fail git status -h >expect &&
77 test_file_not_empty expect &&
78 test_might_fail git -c alias."$cmd"=status "$cmd" -h >actual &&
79 test_cmp expect actual
80}
81
82test_expect_success 'can alias-shadow deprecated builtins' '
83 for cmd in $(git --list-cmds=deprecated)
84 do
85 can_alias_deprecated_builtin "$cmd" || return 1
86 done
87'
88
89test_expect_success 'can alias-shadow via two deprecated builtins' '
90 # some git(1) commands will fail... (see above)
91 test_might_fail git status -h >expect &&
92 test_file_not_empty expect &&
93 test_might_fail git -c alias.whatchanged=pack-redundant \
94 -c alias.pack-redundant=status whatchanged -h >actual &&
95 test_cmp expect actual
96'
97
98cannot_alias_regular_builtin () {
99 cmd="$1" &&
100 # some git(1) commands will fail... (see above)
101 test_might_fail git "$cmd" -h >expect &&
102 test_file_not_empty expect &&
103 test_might_fail git -c alias."$cmd"=status "$cmd" -h >actual &&
104 test_cmp expect actual
105}
106
107test_expect_success 'cannot alias-shadow a sample of regular builtins' '
108 for cmd in grep check-ref-format interpret-trailers \
109 checkout-index fast-import diagnose rev-list prune
110 do
111 cannot_alias_regular_builtin "$cmd" || return 1
112 done
113'
114
115test_done