pack-objects: don't leak pack window reference when splitting packs
[gitweb.git] / rerere.c
index eec2b501072a44f34093cc48acd2c2d5020f04b1..8e5532b1ff96a88133d837b9a29fa78117c36abd 100644 (file)
--- a/rerere.c
+++ b/rerere.c
@@ -1,5 +1,5 @@
 #include "cache.h"
-#include "path-list.h"
+#include "string-list.h"
 #include "rerere.h"
 #include "xdiff/xdiff.h"
 #include "xdiff-interface.h"
@@ -23,7 +23,7 @@ static int has_resolution(const char *name)
        return !stat(rr_path(name, "postimage"), &st);
 }
 
-static void read_rr(struct path_list *rr)
+static void read_rr(struct string_list *rr)
 {
        unsigned char sha1[20];
        char buf[PATH_MAX];
@@ -43,14 +43,14 @@ static void read_rr(struct path_list *rr)
                        ; /* do nothing */
                if (i == sizeof(buf))
                        die("filename too long");
-               path_list_insert(buf, rr)->util = name;
+               string_list_insert(buf, rr)->util = name;
        }
        fclose(in);
 }
 
 static struct lock_file write_lock;
 
-static int write_rr(struct path_list *rr, int out_fd)
+static int write_rr(struct string_list *rr, int out_fd)
 {
        int i;
        for (i = 0; i < rr->nr; i++) {
@@ -58,7 +58,7 @@ static int write_rr(struct path_list *rr, int out_fd)
                int length;
                if (!rr->items[i].util)
                        continue;
-               path = rr->items[i].path;
+               path = rr->items[i].string;
                length = strlen(path) + 1;
                if (write_in_full(out_fd, rr->items[i].util, 40) != 40 ||
                    write_in_full(out_fd, "\t", 1) != 1 ||
@@ -73,10 +73,13 @@ static int write_rr(struct path_list *rr, int out_fd)
 static int handle_file(const char *path,
         unsigned char *sha1, const char *output)
 {
-       SHA_CTX ctx;
+       git_SHA_CTX ctx;
        char buf[1024];
-       int hunk = 0, hunk_no = 0;
-       struct strbuf one, two;
+       int hunk_no = 0;
+       enum {
+               RR_CONTEXT = 0, RR_SIDE_1, RR_SIDE_2, RR_ORIGINAL,
+       } hunk = RR_CONTEXT;
+       struct strbuf one = STRBUF_INIT, two = STRBUF_INIT;
        FILE *f = fopen(path, "r");
        FILE *out = NULL;
 
@@ -92,26 +95,28 @@ static int handle_file(const char *path,
        }
 
        if (sha1)
-               SHA1_Init(&ctx);
+               git_SHA1_Init(&ctx);
 
-       strbuf_init(&one, 0);
-       strbuf_init(&two,  0);
        while (fgets(buf, sizeof(buf), f)) {
                if (!prefixcmp(buf, "<<<<<<< ")) {
-                       if (hunk)
+                       if (hunk != RR_CONTEXT)
                                goto bad;
-                       hunk = 1;
+                       hunk = RR_SIDE_1;
+               } else if (!prefixcmp(buf, "|||||||") && isspace(buf[7])) {
+                       if (hunk != RR_SIDE_1)
+                               goto bad;
+                       hunk = RR_ORIGINAL;
                } else if (!prefixcmp(buf, "=======") && isspace(buf[7])) {
-                       if (hunk != 1)
+                       if (hunk != RR_SIDE_1 && hunk != RR_ORIGINAL)
                                goto bad;
-                       hunk = 2;
+                       hunk = RR_SIDE_2;
                } else if (!prefixcmp(buf, ">>>>>>> ")) {
-                       if (hunk != 2)
+                       if (hunk != RR_SIDE_2)
                                goto bad;
                        if (strbuf_cmp(&one, &two) > 0)
                                strbuf_swap(&one, &two);
                        hunk_no++;
-                       hunk = 0;
+                       hunk = RR_CONTEXT;
                        if (out) {
                                fputs("<<<<<<<\n", out);
                                fwrite(one.buf, one.len, 1, out);
@@ -120,16 +125,18 @@ static int handle_file(const char *path,
                                fputs(">>>>>>>\n", out);
                        }
                        if (sha1) {
-                               SHA1_Update(&ctx, one.buf ? one.buf : "",
+                               git_SHA1_Update(&ctx, one.buf ? one.buf : "",
                                            one.len + 1);
-                               SHA1_Update(&ctx, two.buf ? two.buf : "",
+                               git_SHA1_Update(&ctx, two.buf ? two.buf : "",
                                            two.len + 1);
                        }
                        strbuf_reset(&one);
                        strbuf_reset(&two);
-               } else if (hunk == 1)
+               } else if (hunk == RR_SIDE_1)
                        strbuf_addstr(&one, buf);
-               else if (hunk == 2)
+               else if (hunk == RR_ORIGINAL)
+                       ; /* discard */
+               else if (hunk == RR_SIDE_2)
                        strbuf_addstr(&two, buf);
                else if (out)
                        fputs(buf, out);
@@ -145,8 +152,8 @@ static int handle_file(const char *path,
        if (out)
                fclose(out);
        if (sha1)
-               SHA1_Final(sha1, &ctx);
-       if (hunk) {
+               git_SHA1_Final(sha1, &ctx);
+       if (hunk != RR_CONTEXT) {
                if (output)
                        unlink(output);
                return error("Could not parse conflict hunks in %s", path);
@@ -154,7 +161,7 @@ static int handle_file(const char *path,
        return hunk_no;
 }
 
-static int find_conflict(struct path_list *conflict)
+static int find_conflict(struct string_list *conflict)
 {
        int i;
        if (read_cache() < 0)
@@ -167,7 +174,7 @@ static int find_conflict(struct path_list *conflict)
                    ce_same_name(e2, e3) &&
                    S_ISREG(e2->ce_mode) &&
                    S_ISREG(e3->ce_mode)) {
-                       path_list_insert((const char *)e2->name, conflict);
+                       string_list_insert((const char *)e2->name, conflict);
                        i++; /* skip over both #2 and #3 */
                }
        }
@@ -208,7 +215,7 @@ static int merge(const char *name, const char *path)
 
 static struct lock_file index_lock;
 
-static int update_paths(struct path_list *update)
+static int update_paths(struct string_list *update)
 {
        int i;
        int fd = hold_locked_index(&index_lock, 0);
@@ -218,8 +225,8 @@ static int update_paths(struct path_list *update)
                return -1;
 
        for (i = 0; i < update->nr; i++) {
-               struct path_list_item *item = &update->items[i];
-               if (add_file_to_cache(item->path, ADD_CACHE_IGNORE_ERRORS))
+               struct string_list_item *item = &update->items[i];
+               if (add_file_to_cache(item->string, ADD_CACHE_IGNORE_ERRORS))
                        status = -1;
        }
 
@@ -232,10 +239,10 @@ static int update_paths(struct path_list *update)
        return status;
 }
 
-static int do_plain_rerere(struct path_list *rr, int fd)
+static int do_plain_rerere(struct string_list *rr, int fd)
 {
-       struct path_list conflict = { NULL, 0, 0, 1 };
-       struct path_list update = { NULL, 0, 0, 1 };
+       struct string_list conflict = { NULL, 0, 0, 1 };
+       struct string_list update = { NULL, 0, 0, 1 };
        int i;
 
        find_conflict(&conflict);
@@ -248,8 +255,8 @@ static int do_plain_rerere(struct path_list *rr, int fd)
         */
 
        for (i = 0; i < conflict.nr; i++) {
-               const char *path = conflict.items[i].path;
-               if (!path_list_has_path(rr, path)) {
+               const char *path = conflict.items[i].string;
+               if (!string_list_has_string(rr, path)) {
                        unsigned char sha1[20];
                        char *hex;
                        int ret;
@@ -257,7 +264,7 @@ static int do_plain_rerere(struct path_list *rr, int fd)
                        if (ret < 1)
                                continue;
                        hex = xstrdup(sha1_to_hex(sha1));
-                       path_list_insert(path, rr)->util = hex;
+                       string_list_insert(path, rr)->util = hex;
                        if (mkdir(git_path("rr-cache/%s", hex), 0755))
                                continue;;
                        handle_file(path, NULL, rr_path(hex, "preimage"));
@@ -273,15 +280,18 @@ static int do_plain_rerere(struct path_list *rr, int fd)
 
        for (i = 0; i < rr->nr; i++) {
                int ret;
-               const char *path = rr->items[i].path;
+               const char *path = rr->items[i].string;
                const char *name = (const char *)rr->items[i].util;
 
                if (has_resolution(name)) {
                        if (!merge(name, path)) {
-                               fprintf(stderr, "Resolved '%s' using "
-                                               "previous resolution.\n", path);
                                if (rerere_autoupdate)
-                                       path_list_insert(path, &update);
+                                       string_list_insert(path, &update);
+                               fprintf(stderr,
+                                       "%s '%s' using previous resolution.\n",
+                                       rerere_autoupdate
+                                       ? "Staged" : "Resolved",
+                                       path);
                                goto mark_resolved;
                        }
                }
@@ -316,7 +326,6 @@ static int git_rerere_config(const char *var, const char *value, void *cb)
 
 static int is_rerere_enabled(void)
 {
-       struct stat st;
        const char *rr_cache;
        int rr_cache_exists;
 
@@ -324,7 +333,7 @@ static int is_rerere_enabled(void)
                return 0;
 
        rr_cache = git_path("rr-cache");
-       rr_cache_exists = !stat(rr_cache, &st) && S_ISDIR(st.st_mode);
+       rr_cache_exists = is_directory(rr_cache);
        if (rerere_enabled < 0)
                return rr_cache_exists;
 
@@ -334,7 +343,7 @@ static int is_rerere_enabled(void)
        return 1;
 }
 
-int setup_rerere(struct path_list *merge_rr)
+int setup_rerere(struct string_list *merge_rr)
 {
        int fd;
 
@@ -342,15 +351,16 @@ int setup_rerere(struct path_list *merge_rr)
        if (!is_rerere_enabled())
                return -1;
 
-       merge_rr_path = xstrdup(git_path("rr-cache/MERGE_RR"));
-       fd = hold_lock_file_for_update(&write_lock, merge_rr_path, 1);
+       merge_rr_path = xstrdup(git_path("MERGE_RR"));
+       fd = hold_lock_file_for_update(&write_lock, merge_rr_path,
+                                      LOCK_DIE_ON_ERROR);
        read_rr(merge_rr);
        return fd;
 }
 
 int rerere(void)
 {
-       struct path_list merge_rr = { NULL, 0, 0, 1 };
+       struct string_list merge_rr = { NULL, 0, 0, 1 };
        int fd;
 
        fd = setup_rerere(&merge_rr);