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Merge branch 'ds/config-internal-whitespace-fix' into next
"git config" corrupted literal HT characters written in the configuration file as part of a value, which has been corrected. * ds/config-internal-whitespace-fix: config.txt: describe handling of whitespace further t1300: add more tests for whitespace and inline comments config: really keep value-internal whitespace verbatim config: minor addition of whitespace
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f3393cabe5
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@ -22,9 +22,10 @@ multivalued.
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Syntax
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~~~~~~
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The syntax is fairly flexible and permissive; whitespaces are mostly
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ignored. The '#' and ';' characters begin comments to the end of line,
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blank lines are ignored.
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The syntax is fairly flexible and permissive. Whitespace characters,
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which in this context are the space character (SP) and the horizontal
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tabulation (HT), are mostly ignored. The '#' and ';' characters begin
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comments to the end of line. Blank lines are ignored.
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The file consists of sections and variables. A section begins with
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the name of the section in square brackets and continues until the next
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@ -63,16 +64,17 @@ the variable is the boolean "true").
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The variable names are case-insensitive, allow only alphanumeric characters
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and `-`, and must start with an alphabetic character.
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A line that defines a value can be continued to the next line by
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ending it with a `\`; the backslash and the end-of-line are
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stripped. Leading whitespaces after 'name =', the remainder of the
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line after the first comment character '#' or ';', and trailing
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whitespaces of the line are discarded unless they are enclosed in
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double quotes. Internal whitespaces within the value are retained
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verbatim.
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Whitespace characters surrounding `name`, `=` and `value` are discarded.
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Internal whitespace characters within 'value' are retained verbatim.
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Comments starting with either `#` or `;` and extending to the end of line
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are discarded. A line that defines a value can be continued to the next
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line by ending it with a backslash (`\`); the backslash and the end-of-line
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characters are discarded.
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Inside double quotes, double quote `"` and backslash `\` characters
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must be escaped: use `\"` for `"` and `\\` for `\`.
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If `value` needs to contain leading or trailing whitespace characters,
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it must be enclosed in double quotation marks (`"`). Inside double quotation
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marks, double quote (`"`) and backslash (`\`) characters must be escaped:
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use `\"` for `"` and `\\` for `\`.
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The following escape sequences (beside `\"` and `\\`) are recognized:
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`\n` for newline character (NL), `\t` for horizontal tabulation (HT, TAB)
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15
config.c
15
config.c
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@ -817,7 +817,8 @@ static int get_next_char(struct config_source *cs)
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static char *parse_value(struct config_source *cs)
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{
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int quote = 0, comment = 0, space = 0;
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int quote = 0, comment = 0;
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size_t trim_len = 0;
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strbuf_reset(&cs->value);
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for (;;) {
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@ -827,13 +828,17 @@ static char *parse_value(struct config_source *cs)
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cs->linenr--;
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return NULL;
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}
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if (trim_len)
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strbuf_setlen(&cs->value, trim_len);
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return cs->value.buf;
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}
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if (comment)
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continue;
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if (isspace(c) && !quote) {
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if (!trim_len)
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trim_len = cs->value.len;
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if (cs->value.len)
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space++;
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strbuf_addch(&cs->value, c);
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continue;
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}
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if (!quote) {
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@ -842,8 +847,8 @@ static char *parse_value(struct config_source *cs)
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continue;
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}
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}
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for (; space; space--)
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strbuf_addch(&cs->value, ' ');
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if (trim_len)
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trim_len = 0;
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if (c == '\\') {
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c = get_next_char(cs);
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switch (c) {
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@ -869,7 +874,7 @@ static char *parse_value(struct config_source *cs)
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continue;
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}
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if (c == '"') {
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quote = 1-quote;
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quote = 1 - quote;
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continue;
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}
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strbuf_addch(&cs->value, c);
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@ -11,6 +11,98 @@ export GIT_TEST_DEFAULT_INITIAL_BRANCH_NAME
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TEST_PASSES_SANITIZE_LEAK=true
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. ./test-lib.sh
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test_expect_success 'setup whitespace config' '
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sed -e "s/^|//" \
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-e "s/[$]$//" \
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-e "s/X/ /g" >.git/config <<-\EOF
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[section]
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| solid = rock
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| sparse = big XX blue
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| sparseAndTail = big XX blue $
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| sparseAndTailQuoted = "big XX blue "
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| sparseAndBiggerTail = big XX blue X X
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| sparseAndBiggerTailQuoted = "big XX blue X X"
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| sparseAndBiggerTailQuotedPlus = "big XX blue X X"X $
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| headAndTail = Xbig blue $
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| headAndTailQuoted = "Xbig blue "
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| headAndTailQuotedPlus = "Xbig blue " $
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| annotated = big blueX# to be discarded
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| annotatedQuoted = "big blue"X# to be discarded
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EOF
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'
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test_expect_success 'no internal whitespace' '
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echo "rock" >expect &&
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git config --get section.solid >actual &&
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test_cmp expect actual
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'
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test_expect_success 'internal whitespace' '
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echo "big QQ blue" | q_to_tab >expect &&
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git config --get section.sparse >actual &&
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test_cmp expect actual
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'
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test_expect_success 'internal and trailing whitespace' '
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echo "big QQ blue" | q_to_tab >expect &&
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git config --get section.sparseAndTail >actual &&
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test_cmp expect actual
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'
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test_expect_success 'internal and trailing whitespace, all quoted' '
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echo "big QQ blue " | q_to_tab >expect &&
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git config --get section.sparseAndTailQuoted >actual &&
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test_cmp expect actual
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'
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test_expect_success 'internal and more trailing whitespace' '
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echo "big QQ blue" | q_to_tab >expect &&
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git config --get section.sparseAndBiggerTail >actual &&
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test_cmp expect actual
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'
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test_expect_success 'internal and more trailing whitespace, all quoted' '
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echo "big QQ blue Q Q" | q_to_tab >expect &&
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git config --get section.sparseAndBiggerTailQuoted >actual &&
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test_cmp expect actual
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'
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test_expect_success 'internal and more trailing whitespace, not all quoted' '
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echo "big QQ blue Q Q" | q_to_tab >expect &&
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git config --get section.sparseAndBiggerTailQuotedPlus >actual &&
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test_cmp expect actual
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'
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test_expect_success 'leading and trailing whitespace' '
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echo "big blue" >expect &&
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git config --get section.headAndTail >actual &&
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test_cmp expect actual
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'
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test_expect_success 'leading and trailing whitespace, all quoted' '
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echo "Qbig blue " | q_to_tab >expect &&
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git config --get section.headAndTailQuoted >actual &&
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test_cmp expect actual
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'
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test_expect_success 'leading and trailing whitespace, not all quoted' '
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echo "Qbig blue " | q_to_tab >expect &&
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git config --get section.headAndTailQuotedPlus >actual &&
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test_cmp expect actual
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'
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test_expect_success 'inline comment' '
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echo "big blue" >expect &&
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git config --get section.annotated >actual &&
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test_cmp expect actual
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'
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test_expect_success 'inline comment, quoted' '
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echo "big blue" >expect &&
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git config --get section.annotatedQuoted >actual &&
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test_cmp expect actual
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'
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test_expect_success 'clear default config' '
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rm -f .git/config
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'
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@ -1066,9 +1158,25 @@ test_expect_success '--null --get-regexp' '
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test_cmp expect result
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'
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test_expect_success 'inner whitespace kept verbatim' '
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git config section.val "foo bar" &&
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test_cmp_config "foo bar" section.val
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test_expect_success 'inner whitespace kept verbatim, spaces only' '
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echo "foo bar" >expect &&
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git config section.val "foo bar" &&
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git config --get section.val >actual &&
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test_cmp expect actual
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'
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test_expect_success 'inner whitespace kept verbatim, horizontal tabs only' '
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echo "fooQQbar" | q_to_tab >expect &&
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git config section.val "$(cat expect)" &&
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git config --get section.val >actual &&
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test_cmp expect actual
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'
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test_expect_success 'inner whitespace kept verbatim, horizontal tabs and spaces' '
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echo "foo Q bar" | q_to_tab >expect &&
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git config section.val "$(cat expect)" &&
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git config --get section.val >actual &&
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test_cmp expect actual
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'
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test_expect_success SYMLINKS 'symlinked configuration' '
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