diff options
| -rw-r--r-- | diff.c | 71 | ||||
| -rwxr-xr-x | t/t4047-diff-dirstat.sh | 37 |
2 files changed, 78 insertions, 30 deletions
@@ -67,52 +67,56 @@ static int parse_diff_color_slot(const char *var, int ofs) return -1; } -static int parse_dirstat_params(struct diff_options *options, const char *params) +static int parse_dirstat_params(struct diff_options *options, const char *params, + struct strbuf *errmsg) { const char *p = params; + int p_len, ret = 0; + while (*p) { - if (!prefixcmp(p, "changes")) { - p += 7; + p_len = strchrnul(p, ',') - p; + if (!memcmp(p, "changes", p_len)) { DIFF_OPT_CLR(options, DIRSTAT_BY_LINE); DIFF_OPT_CLR(options, DIRSTAT_BY_FILE); - } else if (!prefixcmp(p, "lines")) { - p += 5; + } else if (!memcmp(p, "lines", p_len)) { DIFF_OPT_SET(options, DIRSTAT_BY_LINE); DIFF_OPT_CLR(options, DIRSTAT_BY_FILE); - } else if (!prefixcmp(p, "files")) { - p += 5; + } else if (!memcmp(p, "files", p_len)) { DIFF_OPT_CLR(options, DIRSTAT_BY_LINE); DIFF_OPT_SET(options, DIRSTAT_BY_FILE); - } else if (!prefixcmp(p, "noncumulative")) { - p += 13; + } else if (!memcmp(p, "noncumulative", p_len)) { DIFF_OPT_CLR(options, DIRSTAT_CUMULATIVE); - } else if (!prefixcmp(p, "cumulative")) { - p += 10; + } else if (!memcmp(p, "cumulative", p_len)) { DIFF_OPT_SET(options, DIRSTAT_CUMULATIVE); } else if (isdigit(*p)) { char *end; - options->dirstat_permille = strtoul(p, &end, 10) * 10; - p = end; - if (*p == '.' && isdigit(*++p)) { + int permille = strtoul(p, &end, 10) * 10; + if (*end == '.' && isdigit(*++end)) { /* only use first digit */ - options->dirstat_permille += *p - '0'; + permille += *end - '0'; /* .. and ignore any further digits */ - while (isdigit(*++p)) + while (isdigit(*++end)) ; /* nothing */ } - } else - return error("Unknown --dirstat parameter '%s'", p); - - if (*p) { - /* more parameters, swallow separator */ - if (*p != ',') - return error("Missing comma separator at char " - "%"PRIuMAX" of '%s'", - (uintmax_t) (p - params), params); - p++; + if (end - p == p_len) + options->dirstat_permille = permille; + else { + strbuf_addf(errmsg, " Failed to parse dirstat cut-off percentage '%.*s'\n", + p_len, p); + ret++; + } + } else { + strbuf_addf(errmsg, " Unknown dirstat parameter '%.*s'\n", + p_len, p); + ret++; } + + p += p_len; + + if (*p) + p++; /* more parameters, swallow separator */ } - return 0; + return ret; } static int git_config_rename(const char *var, const char *value) @@ -195,8 +199,12 @@ int git_diff_basic_config(const char *var, const char *value, void *cb) } if (!strcmp(var, "diff.dirstat")) { + struct strbuf errmsg = STRBUF_INIT; default_diff_options.dirstat_permille = diff_dirstat_permille_default; - (void) parse_dirstat_params(&default_diff_options, value); + if (parse_dirstat_params(&default_diff_options, value, &errmsg)) + warning("Found errors in 'diff.dirstat' config variable:\n%s", + errmsg.buf); + strbuf_release(&errmsg); diff_dirstat_permille_default = default_diff_options.dirstat_permille; return 0; } @@ -3250,8 +3258,11 @@ static int stat_opt(struct diff_options *options, const char **av) static int parse_dirstat_opt(struct diff_options *options, const char *params) { - if (parse_dirstat_params(options, params)) - die("Failed to parse --dirstat/-X option parameter"); + struct strbuf errmsg = STRBUF_INIT; + if (parse_dirstat_params(options, params, &errmsg)) + die("Failed to parse --dirstat/-X option parameter:\n%s", + errmsg.buf); + strbuf_release(&errmsg); /* * The caller knows a dirstat-related option is given from the command * line; allow it to say "return this_function();" diff --git a/t/t4047-diff-dirstat.sh b/t/t4047-diff-dirstat.sh index b8ad92a35..cc947fde9 100755 --- a/t/t4047-diff-dirstat.sh +++ b/t/t4047-diff-dirstat.sh @@ -939,4 +939,41 @@ test_expect_success 'diff.dirstat=0,lines' ' test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC ' +test_expect_success '--dirstat=future_param,lines,0 should fail loudly' ' + test_must_fail git diff --dirstat=future_param,lines,0 HEAD^..HEAD >actual_diff_dirstat 2>actual_error && + test_debug "cat actual_error" && + test_cmp /dev/null actual_diff_dirstat && + grep -q "future_param" actual_error && + grep -q "\--dirstat" actual_error +' + +test_expect_success '--dirstat=dummy1,cumulative,2dummy should report both unrecognized parameters' ' + test_must_fail git diff --dirstat=dummy1,cumulative,2dummy HEAD^..HEAD >actual_diff_dirstat 2>actual_error && + test_debug "cat actual_error" && + test_cmp /dev/null actual_diff_dirstat && + grep -q "dummy1" actual_error && + grep -q "2dummy" actual_error && + grep -q "\--dirstat" actual_error +' + +test_expect_success 'diff.dirstat=future_param,0,lines should warn, but still work' ' + git -c diff.dirstat=future_param,0,lines diff --dirstat HEAD^..HEAD >actual_diff_dirstat 2>actual_error && + test_debug "cat actual_error" && + test_cmp expect_diff_dirstat actual_diff_dirstat && + grep -q "future_param" actual_error && + grep -q "diff\\.dirstat" actual_error && + + git -c diff.dirstat=future_param,0,lines diff --dirstat -M HEAD^..HEAD >actual_diff_dirstat_M 2>actual_error && + test_debug "cat actual_error" && + test_cmp expect_diff_dirstat_M actual_diff_dirstat_M && + grep -q "future_param" actual_error && + grep -q "diff\\.dirstat" actual_error && + + git -c diff.dirstat=future_param,0,lines diff --dirstat -C -C HEAD^..HEAD >actual_diff_dirstat_CC 2>actual_error && + test_debug "cat actual_error" && + test_cmp expect_diff_dirstat_CC actual_diff_dirstat_CC && + grep -q "future_param" actual_error && + grep -q "diff\\.dirstat" actual_error +' + test_done |