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fd680bc558
If the user asks for a pretty-printed commit to be converted (either
explicitly with --encoding=foo, or implicitly because the commit is
non-utf8 and we want to convert it), we pass it through iconv(). If that
fails, we fall back to showing the input verbatim, but don't tell the
user that the output may be bogus.
Let's add a warning to do so, along with a mention in the documentation
for --encoding. Two things to note about the implementation:
- we could produce the warning closer to the call to iconv() in
reencode_string_len(), which would let us relay the value of errno.
But this is not actually very helpful. reencode_string_len() does
not know we are operating on a commit, and indeed does not know that
the caller won't produce an error of its own. And the errno values
from iconv() are seldom helpful (iconv_open() only ever produces
EINVAL; perhaps EILSEQ from iconv() might be illuminating, but it
can also return EINVAL for incomplete sequences).
- if the reason for the failure is that the output charset is not
supported, then the user will see this warning for every commit we
try to display. That might be ugly and overwhelming, but on the
other hand it is making it clear that every one of them has not been
converted (and the likely outcome anyway is to re-try the command
with a supported output encoding).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
141 lines
3.1 KiB
Bash
Executable file
141 lines
3.1 KiB
Bash
Executable file
#!/bin/sh
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test_description='test log with i18n features'
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. ./lib-gettext.sh
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# two forms of é
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utf8_e=$(printf '\303\251')
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latin1_e=$(printf '\351')
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# invalid UTF-8
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invalid_e=$(printf '\303\50)') # ")" at end to close opening "("
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have_reg_illseq=
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if test_have_prereq GETTEXT_LOCALE &&
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! LC_ALL=$is_IS_locale test-tool regex --silent $latin1_e
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then
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have_reg_illseq=1
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fi
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test_expect_success 'create commits in different encodings' '
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test_tick &&
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cat >msg <<-EOF &&
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utf8
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t${utf8_e}st
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EOF
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git add msg &&
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git -c i18n.commitencoding=utf8 commit -F msg &&
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cat >msg <<-EOF &&
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latin1
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t${latin1_e}st
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EOF
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git add msg &&
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git -c i18n.commitencoding=ISO-8859-1 commit -F msg
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'
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test_expect_success 'log --grep searches in log output encoding (utf8)' '
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cat >expect <<-\EOF &&
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latin1
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utf8
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EOF
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git log --encoding=utf8 --format=%s --grep=$utf8_e >actual &&
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test_cmp expect actual
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'
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test_expect_success !MINGW 'log --grep searches in log output encoding (latin1)' '
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cat >expect <<-\EOF &&
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latin1
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utf8
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EOF
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git log --encoding=ISO-8859-1 --format=%s --grep=$latin1_e >actual &&
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test_cmp expect actual
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'
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test_expect_success !MINGW 'log --grep does not find non-reencoded values (utf8)' '
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git log --encoding=utf8 --format=%s --grep=$latin1_e >actual &&
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test_must_be_empty actual
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'
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test_expect_success 'log --grep does not find non-reencoded values (latin1)' '
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git log --encoding=ISO-8859-1 --format=%s --grep=$utf8_e >actual &&
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test_must_be_empty actual
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'
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triggers_undefined_behaviour () {
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local engine=$1
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case $engine in
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fixed)
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if test -n "$have_reg_illseq" &&
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! test_have_prereq LIBPCRE2
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then
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return 0
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fi
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;;
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basic|extended)
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if test -n "$have_reg_illseq"
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then
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return 0
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fi
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;;
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esac
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return 1
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}
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mismatched_git_log () {
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local pattern=$1
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LC_ALL=$is_IS_locale git log --encoding=ISO-8859-1 --format=%s \
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--grep=$pattern
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}
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for engine in fixed basic extended perl
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do
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prereq=
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if test $engine = "perl"
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then
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prereq=PCRE
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fi
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force_regex=
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if test $engine != "fixed"
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then
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force_regex='.*'
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fi
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test_expect_success $prereq "config grep.patternType=$engine" "
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git config grep.patternType $engine
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"
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test_expect_success GETTEXT_LOCALE,$prereq "log --grep does not find non-reencoded values (latin1 + locale)" "
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mismatched_git_log '$force_regex$utf8_e' >actual &&
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test_must_be_empty actual
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"
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if ! triggers_undefined_behaviour $engine
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then
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test_expect_success !MINGW,GETTEXT_LOCALE,$prereq "log --grep searches in log output encoding (latin1 + locale)" "
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cat >expect <<-\EOF &&
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latin1
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utf8
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EOF
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mismatched_git_log '$force_regex$latin1_e' >actual &&
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test_cmp expect actual
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"
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test_expect_success GETTEXT_LOCALE,$prereq "log --grep does not die on invalid UTF-8 value (latin1 + locale + invalid needle)" "
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mismatched_git_log '$force_regex$invalid_e' >actual &&
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test_must_be_empty actual
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"
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fi
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done
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test_expect_success 'log shows warning when conversion fails' '
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enc=this-encoding-does-not-exist &&
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git log -1 --encoding=$enc 2>err &&
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echo "warning: unable to reencode commit to ${SQ}${enc}${SQ}" >expect &&
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test_cmp expect err
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'
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test_done
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