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Provide this option also as a config param 'diff.wordDiff'. Signed-off-by: Karthik Nayak --- Documentation/config/diff.txt | 4 +++ diff.c | 50 +++++++++++++++++++++++++++-------- t/t4034-diff-words.sh | 11 ++++++-- 3 files changed, 52 insertions(+), 13 deletions(-) diff --git a/Documentation/config/diff.txt b/Documentation/config/diff.txt index bd5ae0c337..00459beee2 100644 --- a/Documentation/config/diff.txt +++ b/Documentation/config/diff.txt @@ -225,3 +225,7 @@ diff.colorMovedWS:: When moved lines are colored using e.g. the `diff.colorMoved` setting, this option controls the `` how spaces are treated for details of valid modes see '--color-moved-ws' in linkgit:git-diff[1]. + +diff.wordDiff:: + Show a word diff, using the `` to delimit changed words. + For details of valid modes see '--word-diff' in linkgit:git-diff[1]. diff --git a/diff.c b/diff.c index e50def4538..050d83ef85 100644 --- a/diff.c +++ b/diff.c @@ -69,6 +69,7 @@ static int diff_dirstat_permille_default = 30; static struct diff_options default_diff_options; static long diff_algorithm; static unsigned ws_error_highlight_default = WSEH_NEW; +static int diff_word_diff_default; static char diff_colors[][COLOR_MAXLEN] = { GIT_COLOR_RESET, @@ -209,6 +210,23 @@ int git_config_rename(const char *var, const char *value) return git_config_bool(var,value) ? DIFF_DETECT_RENAME : 0; } +static int parse_word_diff_value(const char *value) +{ + if (!value) + return -1; + else if (!strcmp(value, "plain")) + return DIFF_WORDS_PLAIN; + else if (!strcmp(value, "color")) { + return DIFF_WORDS_COLOR; + } + else if (!strcmp(value, "porcelain")) + return DIFF_WORDS_PORCELAIN; + else if (!strcmp(value, "none")) + return DIFF_WORDS_NONE; + + return -1; +} + long parse_algorithm_value(const char *value) { if (!value) @@ -452,6 +470,18 @@ int git_diff_ui_config(const char *var, const char *value, return 0; } + if (!strcmp(var, "diff.worddiff")) { + if (!value) + return config_error_nonbool(var); + diff_word_diff_default = parse_word_diff_value(value); + if (diff_word_diff_default < 0) + return error(_("unknown value for config '%s': %s"), + var, value); + if (diff_word_diff_default == DIFF_WORDS_COLOR) + diff_use_color_default = 1; + return 0; + } + if (git_color_config(var, value, cb) < 0) return -1; @@ -4724,6 +4754,7 @@ void repo_diff_setup(struct repository *r, struct diff_options *options) options->use_color = diff_use_color_default; options->detect_rename = diff_detect_rename_default; options->xdl_opts |= diff_algorithm; + options->word_diff |= diff_word_diff_default; if (diff_indent_heuristic) DIFF_XDL_SET(options, INDENT_HEURISTIC); @@ -5504,21 +5535,18 @@ static int diff_opt_word_diff(const struct option *opt, const char *arg, int unset) { struct diff_options *options = opt->value; + int value; BUG_ON_OPT_NEG(unset); + if (arg) { - if (!strcmp(arg, "plain")) - options->word_diff = DIFF_WORDS_PLAIN; - else if (!strcmp(arg, "color")) { - options->use_color = 1; - options->word_diff = DIFF_WORDS_COLOR; - } - else if (!strcmp(arg, "porcelain")) - options->word_diff = DIFF_WORDS_PORCELAIN; - else if (!strcmp(arg, "none")) - options->word_diff = DIFF_WORDS_NONE; - else + value = parse_word_diff_value(arg); + if (value < 0) return error(_("bad --word-diff argument: %s"), arg); + if (value == DIFF_WORDS_COLOR) + options->use_color = 1; + + options->word_diff = value; } else { if (options->word_diff == DIFF_WORDS_NONE) options->word_diff = DIFF_WORDS_PLAIN; diff --git a/t/t4034-diff-words.sh b/t/t4034-diff-words.sh index 4f70aa6e9f..2cc391c339 100755 --- a/t/t4034-diff-words.sh +++ b/t/t4034-diff-words.sh @@ -56,12 +56,19 @@ diff_with_opts () { post=$(git rev-parse --short $(git hash-object post)) && test_must_fail git diff --no-index "$@" pre post >output && test_decode_color output.decrypted && - sed -e "2s/index [^ ]*/index $pre..$post/" expect >expected + sed -e "2s/index [^ ]*/index $pre..$post/" expect >expected && test_cmp expected output.decrypted } word_diff () { - diff_with_opts "--word-diff=$1" $(echo "$@" | cut -d' ' -s -f 2-) + # Capture the rest of the arguments to passthrough. + rest=$(echo "$@" | cut -d' ' -s -f 2-) && + # Test via the config route. + git config diff.wordDiff $1 && + diff_with_opts $rest && + git config --unset diff.wordDiff && + # Test via the command option route. + diff_with_opts "--word-diff=$1" $rest } test_language_driver () {