builtin/apply: move 'ws_error_action' into 'struct apply_state'

To libify the apply functionality the 'ws_error_action' variable should
not be static and global to the file. Let's move it into
'struct apply_state'.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/builtin/apply.c b/builtin/apply.c
index 91b6283a976d79d6c8751271fc0eadb794882344..61d809a99e44f6f8f6e9b751869597171cebebae 100644 (file)
--- a/builtin/apply.c
+++ b/builtin/apply.c
@@ -21,6 +21,13 @@
 #include "ll-merge.h"
 #include "rerere.h"
 
+enum ws_error_action {
+       nowarn_ws_error,
+       warn_on_ws_error,
+       die_on_ws_error,
+       correct_ws_error
+};
+
 struct apply_state {
        const char *prefix;
        int prefix_length;
@@ -61,6 +68,7 @@ struct apply_state {
        int has_include;
 
        /* These control whitespace errors */
+       enum ws_error_action ws_error_action;
        const char *whitespace_option;
        int whitespace_error;
        int squelch_whitespace_errors;
@@ -74,12 +82,6 @@ static const char * const apply_usage[] = {
        NULL
 };
 
-static enum ws_error_action {
-       nowarn_ws_error,
-       warn_on_ws_error,
-       die_on_ws_error,
-       correct_ws_error
-} ws_error_action = warn_on_ws_error;
 
 static enum ws_ignore {
        ignore_ws_none,
@@ -90,28 +92,28 @@ static enum ws_ignore {
 static void parse_whitespace_option(struct apply_state *state, const char *option)
 {
        if (!option) {
-               ws_error_action = warn_on_ws_error;
+               state->ws_error_action = warn_on_ws_error;
                return;
        }
        if (!strcmp(option, "warn")) {
-               ws_error_action = warn_on_ws_error;
+               state->ws_error_action = warn_on_ws_error;
                return;
        }
        if (!strcmp(option, "nowarn")) {
-               ws_error_action = nowarn_ws_error;
+               state->ws_error_action = nowarn_ws_error;
                return;
        }
        if (!strcmp(option, "error")) {
-               ws_error_action = die_on_ws_error;
+               state->ws_error_action = die_on_ws_error;
                return;
        }
        if (!strcmp(option, "error-all")) {
-               ws_error_action = die_on_ws_error;
+               state->ws_error_action = die_on_ws_error;
                state->squelch_whitespace_errors = 0;
                return;
        }
        if (!strcmp(option, "strip") || !strcmp(option, "fix")) {
-               ws_error_action = correct_ws_error;
+               state->ws_error_action = correct_ws_error;
                return;
        }
        die(_("unrecognized whitespace option '%s'"), option);
@@ -135,7 +137,7 @@ static void parse_ignorewhitespace_option(const char *option)
 static void set_default_whitespace_mode(struct apply_state *state)
 {
        if (!state->whitespace_option && !apply_default_whitespace)
-               ws_error_action = (state->apply ? warn_on_ws_error : nowarn_ws_error);
+               state->ws_error_action = (state->apply ? warn_on_ws_error : nowarn_ws_error);
 }
 
 /*
@@ -1670,12 +1672,12 @@ static int parse_fragment(struct apply_state *state,
                                leading++;
                        trailing++;
                        if (!state->apply_in_reverse &&
-                           ws_error_action == correct_ws_error)
+                           state->ws_error_action == correct_ws_error)
                                check_whitespace(state, line, len, patch->ws_rule);
                        break;
                case '-':
                        if (state->apply_in_reverse &&
-                           ws_error_action != nowarn_ws_error)
+                           state->ws_error_action != nowarn_ws_error)
                                check_whitespace(state, line, len, patch->ws_rule);
                        deleted++;
                        oldlines--;
@@ -1683,7 +1685,7 @@ static int parse_fragment(struct apply_state *state,
                        break;
                case '+':
                        if (!state->apply_in_reverse &&
-                           ws_error_action != nowarn_ws_error)
+                           state->ws_error_action != nowarn_ws_error)
                                check_whitespace(state, line, len, patch->ws_rule);
                        added++;
                        newlines--;
@@ -2396,7 +2398,8 @@ static int line_by_line_fuzzy_match(struct image *img,
        return 1;
 }
 
-static int match_fragment(struct image *img,
+static int match_fragment(struct apply_state *state,
+                         struct image *img,
                          struct image *preimage,
                          struct image *postimage,
                          unsigned long try,
@@ -2417,7 +2420,7 @@ static int match_fragment(struct image *img,
                preimage_limit = preimage->nr;
                if (match_end && (preimage->nr + try_lno != img->nr))
                        return 0;
-       } else if (ws_error_action == correct_ws_error &&
+       } else if (state->ws_error_action == correct_ws_error &&
                   (ws_rule & WS_BLANK_AT_EOF)) {
                /*
                 * This hunk extends beyond the end of img, and we are
@@ -2489,7 +2492,7 @@ static int match_fragment(struct image *img,
                return line_by_line_fuzzy_match(img, preimage, postimage,
                                                try, try_lno, preimage_limit);
 
-       if (ws_error_action != correct_ws_error)
+       if (state->ws_error_action != correct_ws_error)
                return 0;
 
        /*
@@ -2601,7 +2604,8 @@ static int match_fragment(struct image *img,
        return 0;
 }
 
-static int find_pos(struct image *img,
+static int find_pos(struct apply_state *state,
+                   struct image *img,
                    struct image *preimage,
                    struct image *postimage,
                    int line,
@@ -2645,7 +2649,7 @@ static int find_pos(struct image *img,
        try_lno = line;
 
        for (i = 0; ; i++) {
-               if (match_fragment(img, preimage, postimage,
+               if (match_fragment(state, img, preimage, postimage,
                                   try, try_lno, ws_rule,
                                   match_beginning, match_end))
                        return try_lno;
@@ -2858,7 +2862,7 @@ static int apply_one_fragment(struct apply_state *state,
                        start = newlines.len;
                        if (first != '+' ||
                            !state->whitespace_error ||
-                           ws_error_action != correct_ws_error) {
+                           state->ws_error_action != correct_ws_error) {
                                strbuf_add(&newlines, patch + 1, plen);
                        }
                        else {
@@ -2936,7 +2940,7 @@ static int apply_one_fragment(struct apply_state *state,
 
        for (;;) {
 
-               applied_pos = find_pos(img, &preimage, &postimage, pos,
+               applied_pos = find_pos(state, img, &preimage, &postimage, pos,
                                       ws_rule, match_beginning, match_end);
 
                if (applied_pos >= 0)
@@ -2972,10 +2976,10 @@ static int apply_one_fragment(struct apply_state *state,
                if (new_blank_lines_at_end &&
                    preimage.nr + applied_pos >= img->nr &&
                    (ws_rule & WS_BLANK_AT_EOF) &&
-                   ws_error_action != nowarn_ws_error) {
+                   state->ws_error_action != nowarn_ws_error) {
                        record_ws_error(state, WS_BLANK_AT_EOF, "+", 1,
                                        found_new_blank_lines_at_end);
-                       if (ws_error_action == correct_ws_error) {
+                       if (state->ws_error_action == correct_ws_error) {
                                while (new_blank_lines_at_end--)
                                        remove_last_line(&postimage);
                        }
@@ -2986,7 +2990,7 @@ static int apply_one_fragment(struct apply_state *state,
                         * apply_patch->check_patch_list->check_patch->
                         * apply_data->apply_fragments->apply_one_fragment
                         */
-                       if (ws_error_action == die_on_ws_error)
+                       if (state->ws_error_action == die_on_ws_error)
                                state->apply = 0;
                }
 
@@ -4530,7 +4534,7 @@ static int apply_patch(struct apply_state *state,
        if (!list && !skipped_patch)
                die(_("unrecognized input"));
 
-       if (state->whitespace_error && (ws_error_action == die_on_ws_error))
+       if (state->whitespace_error && (state->ws_error_action == die_on_ws_error))
                state->apply = 0;
 
        state->update_index = state->check_index && state->apply;
@@ -4645,6 +4649,7 @@ static void init_apply_state(struct apply_state *state, const char *prefix)
        state->p_value = 1;
        state->p_context = UINT_MAX;
        state->squelch_whitespace_errors = 5;
+       state->ws_error_action = warn_on_ws_error;
        strbuf_init(&state->root, 0);
 
        git_apply_config();
@@ -4801,7 +4806,7 @@ int cmd_apply(int argc, const char **argv, const char *prefix)
                                   squelched),
                                squelched);
                }
-               if (ws_error_action == die_on_ws_error)
+               if (state.ws_error_action == die_on_ws_error)
                        die(Q_("%d line adds whitespace errors.",
                               "%d lines add whitespace errors.",
                               state.whitespace_error),