Merge branch 'jp/string-list-api-cleanup'
[git/git.git] / t / t7006-pager.sh
1 #!/bin/sh
2
3 test_description='Test automatic use of a pager.'
4
5 . ./test-lib.sh
6
7 cleanup_fail() {
8 echo >&2 cleanup failed
9 (exit 1)
10 }
11
12 test_expect_success 'set up terminal for tests' '
13 rm -f stdout_is_tty ||
14 cleanup_fail &&
15
16 if test -t 1
17 then
18 >stdout_is_tty
19 elif
20 test_have_prereq PERL &&
21 "$PERL_PATH" "$TEST_DIRECTORY"/t7006/test-terminal.perl \
22 sh -c "test -t 1"
23 then
24 >test_terminal_works
25 fi
26 '
27
28 if test -e stdout_is_tty
29 then
30 test_terminal() { "$@"; }
31 test_set_prereq TTY
32 elif test -e test_terminal_works
33 then
34 test_terminal() {
35 "$PERL_PATH" "$TEST_DIRECTORY"/t7006/test-terminal.perl "$@"
36 }
37 test_set_prereq TTY
38 else
39 say no usable terminal, so skipping some tests
40 fi
41
42 test_expect_success 'setup' '
43 unset GIT_PAGER GIT_PAGER_IN_USE;
44 test_might_fail git config --unset core.pager &&
45
46 PAGER="cat >paginated.out" &&
47 export PAGER &&
48
49 test_commit initial
50 '
51
52 test_expect_success TTY 'some commands use a pager' '
53 rm -f paginated.out ||
54 cleanup_fail &&
55
56 test_terminal git log &&
57 test -e paginated.out
58 '
59
60 test_expect_success TTY 'some commands do not use a pager' '
61 rm -f paginated.out ||
62 cleanup_fail &&
63
64 test_terminal git rev-list HEAD &&
65 ! test -e paginated.out
66 '
67
68 test_expect_success 'no pager when stdout is a pipe' '
69 rm -f paginated.out ||
70 cleanup_fail &&
71
72 git log | cat &&
73 ! test -e paginated.out
74 '
75
76 test_expect_success 'no pager when stdout is a regular file' '
77 rm -f paginated.out ||
78 cleanup_fail &&
79
80 git log >file &&
81 ! test -e paginated.out
82 '
83
84 test_expect_success TTY 'git --paginate rev-list uses a pager' '
85 rm -f paginated.out ||
86 cleanup_fail &&
87
88 test_terminal git --paginate rev-list HEAD &&
89 test -e paginated.out
90 '
91
92 test_expect_success 'no pager even with --paginate when stdout is a pipe' '
93 rm -f file paginated.out ||
94 cleanup_fail &&
95
96 git --paginate log | cat &&
97 ! test -e paginated.out
98 '
99
100 test_expect_success TTY 'no pager with --no-pager' '
101 rm -f paginated.out ||
102 cleanup_fail &&
103
104 test_terminal git --no-pager log &&
105 ! test -e paginated.out
106 '
107
108 # A colored commit log will begin with an appropriate ANSI escape
109 # for the first color; the text "commit" comes later.
110 colorful() {
111 read firstline <$1
112 ! expr "$firstline" : "[a-zA-Z]" >/dev/null
113 }
114
115 test_expect_success 'tests can detect color' '
116 rm -f colorful.log colorless.log ||
117 cleanup_fail &&
118
119 git log --no-color >colorless.log &&
120 git log --color >colorful.log &&
121 ! colorful colorless.log &&
122 colorful colorful.log
123 '
124
125 test_expect_success 'no color when stdout is a regular file' '
126 rm -f colorless.log &&
127 git config color.ui auto ||
128 cleanup_fail &&
129
130 git log >colorless.log &&
131 ! colorful colorless.log
132 '
133
134 test_expect_success TTY 'color when writing to a pager' '
135 rm -f paginated.out &&
136 git config color.ui auto ||
137 cleanup_fail &&
138
139 (
140 TERM=vt100 &&
141 export TERM &&
142 test_terminal git log
143 ) &&
144 colorful paginated.out
145 '
146
147 test_expect_success 'color when writing to a file intended for a pager' '
148 rm -f colorful.log &&
149 git config color.ui auto ||
150 cleanup_fail &&
151
152 (
153 TERM=vt100 &&
154 GIT_PAGER_IN_USE=true &&
155 export TERM GIT_PAGER_IN_USE &&
156 git log >colorful.log
157 ) &&
158 colorful colorful.log
159 '
160
161 test_expect_success 'determine default pager' '
162 unset PAGER GIT_PAGER;
163 test_might_fail git config --unset core.pager ||
164 cleanup_fail &&
165
166 less=$(git var GIT_PAGER) &&
167 test -n "$less"
168 '
169
170 if expr "$less" : '[a-z][a-z]*$' >/dev/null && test_have_prereq TTY
171 then
172 test_set_prereq SIMPLEPAGER
173 fi
174
175 test_expect_success SIMPLEPAGER 'default pager is used by default' '
176 unset PAGER GIT_PAGER;
177 test_might_fail git config --unset core.pager &&
178 rm -f default_pager_used ||
179 cleanup_fail &&
180
181 cat >$less <<-\EOF &&
182 #!/bin/sh
183 wc >default_pager_used
184 EOF
185 chmod +x $less &&
186 (
187 PATH=.:$PATH &&
188 export PATH &&
189 test_terminal git log
190 ) &&
191 test -e default_pager_used
192 '
193
194 test_expect_success TTY 'PAGER overrides default pager' '
195 unset GIT_PAGER;
196 test_might_fail git config --unset core.pager &&
197 rm -f PAGER_used ||
198 cleanup_fail &&
199
200 PAGER="wc >PAGER_used" &&
201 export PAGER &&
202 test_terminal git log &&
203 test -e PAGER_used
204 '
205
206 test_expect_success TTY 'core.pager overrides PAGER' '
207 unset GIT_PAGER;
208 rm -f core.pager_used ||
209 cleanup_fail &&
210
211 PAGER=wc &&
212 export PAGER &&
213 git config core.pager "wc >core.pager_used" &&
214 test_terminal git log &&
215 test -e core.pager_used
216 '
217
218 test_expect_success TTY 'GIT_PAGER overrides core.pager' '
219 rm -f GIT_PAGER_used ||
220 cleanup_fail &&
221
222 git config core.pager wc &&
223 GIT_PAGER="wc >GIT_PAGER_used" &&
224 export GIT_PAGER &&
225 test_terminal git log &&
226 test -e GIT_PAGER_used
227 '
228
229 test_done