From: Junio C Hamano Date: Sun, 9 Nov 2008 00:05:39 +0000 (-0800) Subject: Merge branch 'rs/blame' X-Git-Tag: v1.6.1-rc1~77 X-Git-Url: https://git.lorimer.id.au/gitweb.git/diff_plain/1e2bba92d21d9c72d4a6816c3a98a22779856f9e?ds=inline;hp=-c Merge branch 'rs/blame' * rs/blame: blame: use xdi_diff_hunks(), get rid of struct patch add xdi_diff_hunks() for callers that only need hunk lengths Allow alternate "low-level" emit function from xdl_diff Always initialize xpparam_t to 0 blame: inline get_patch() --- 1e2bba92d21d9c72d4a6816c3a98a22779856f9e diff --combined builtin-blame.c index 2457e71fc0,b6bc5cf6a9..a0d60145f2 --- a/builtin-blame.c +++ b/builtin-blame.c @@@ -442,131 -442,6 +442,6 @@@ static struct origin *find_rename(struc return porigin; } - /* - * Parsing of patch chunks... - */ - struct chunk { - /* line number in postimage; up to but not including this - * line is the same as preimage - */ - int same; - - /* preimage line number after this chunk */ - int p_next; - - /* postimage line number after this chunk */ - int t_next; - }; - - struct patch { - struct chunk *chunks; - int num; - }; - - struct blame_diff_state { - struct patch *ret; - unsigned hunk_post_context; - unsigned hunk_in_pre_context : 1; - }; - - static void process_u_diff(void *state_, char *line, unsigned long len) - { - struct blame_diff_state *state = state_; - struct chunk *chunk; - int off1, off2, len1, len2, num; - - num = state->ret->num; - if (len < 4 || line[0] != '@' || line[1] != '@') { - if (state->hunk_in_pre_context && line[0] == ' ') - state->ret->chunks[num - 1].same++; - else { - state->hunk_in_pre_context = 0; - if (line[0] == ' ') - state->hunk_post_context++; - else - state->hunk_post_context = 0; - } - return; - } - - if (num && state->hunk_post_context) { - chunk = &state->ret->chunks[num - 1]; - chunk->p_next -= state->hunk_post_context; - chunk->t_next -= state->hunk_post_context; - } - state->ret->num = ++num; - state->ret->chunks = xrealloc(state->ret->chunks, - sizeof(struct chunk) * num); - chunk = &state->ret->chunks[num - 1]; - if (parse_hunk_header(line, len, &off1, &len1, &off2, &len2)) { - state->ret->num--; - return; - } - - /* Line numbers in patch output are one based. */ - off1--; - off2--; - - chunk->same = len2 ? off2 : (off2 + 1); - - chunk->p_next = off1 + (len1 ? len1 : 1); - chunk->t_next = chunk->same + len2; - state->hunk_in_pre_context = 1; - state->hunk_post_context = 0; - } - - static struct patch *compare_buffer(mmfile_t *file_p, mmfile_t *file_o, - int context) - { - struct blame_diff_state state; - xpparam_t xpp; - xdemitconf_t xecfg; - xdemitcb_t ecb; - - xpp.flags = xdl_opts; - memset(&xecfg, 0, sizeof(xecfg)); - xecfg.ctxlen = context; - memset(&state, 0, sizeof(state)); - state.ret = xmalloc(sizeof(struct patch)); - state.ret->chunks = NULL; - state.ret->num = 0; - - xdi_diff_outf(file_p, file_o, process_u_diff, &state, &xpp, &xecfg, &ecb); - - if (state.ret->num) { - struct chunk *chunk; - chunk = &state.ret->chunks[state.ret->num - 1]; - chunk->p_next -= state.hunk_post_context; - chunk->t_next -= state.hunk_post_context; - } - return state.ret; - } - - /* - * Run diff between two origins and grab the patch output, so that - * we can pass blame for lines origin is currently suspected for - * to its parent. - */ - static struct patch *get_patch(struct origin *parent, struct origin *origin) - { - mmfile_t file_p, file_o; - struct patch *patch; - - fill_origin_blob(parent, &file_p); - fill_origin_blob(origin, &file_o); - if (!file_p.ptr || !file_o.ptr) - return NULL; - patch = compare_buffer(&file_p, &file_o, 0); - num_get_patch++; - return patch; - } - - static void free_patch(struct patch *p) - { - free(p->chunks); - free(p); - } - /* * Link in a new blame entry to the scoreboard. Entries that cover the * same line range have been removed from the scoreboard previously. @@@ -813,6 -688,22 +688,22 @@@ static void blame_chunk(struct scoreboa } } + struct blame_chunk_cb_data { + struct scoreboard *sb; + struct origin *target; + struct origin *parent; + long plno; + long tlno; + }; + + static void blame_chunk_cb(void *data, long same, long p_next, long t_next) + { + struct blame_chunk_cb_data *d = data; + blame_chunk(d->sb, d->tlno, d->plno, same, d->target, d->parent); + d->plno = p_next; + d->tlno = t_next; + } + /* * We are looking at the origin 'target' and aiming to pass blame * for the lines it is suspected to its parent. Run diff to find @@@ -822,26 -713,28 +713,28 @@@ static int pass_blame_to_parent(struct struct origin *target, struct origin *parent) { - int i, last_in_target, plno, tlno; - struct patch *patch; + int last_in_target; + mmfile_t file_p, file_o; + struct blame_chunk_cb_data d = { sb, target, parent, 0, 0 }; + xpparam_t xpp; + xdemitconf_t xecfg; last_in_target = find_last_in_target(sb, target); if (last_in_target < 0) return 1; /* nothing remains for this target */ - patch = get_patch(parent, target); - plno = tlno = 0; - for (i = 0; i < patch->num; i++) { - struct chunk *chunk = &patch->chunks[i]; + fill_origin_blob(parent, &file_p); + fill_origin_blob(target, &file_o); + num_get_patch++; - blame_chunk(sb, tlno, plno, chunk->same, target, parent); - plno = chunk->p_next; - tlno = chunk->t_next; - } + memset(&xpp, 0, sizeof(xpp)); + xpp.flags = xdl_opts; + memset(&xecfg, 0, sizeof(xecfg)); + xecfg.ctxlen = 0; + xdi_diff_hunks(&file_p, &file_o, blame_chunk_cb, &d, &xpp, &xecfg); /* The rest (i.e. anything after tlno) are the same as the parent */ - blame_chunk(sb, tlno, plno, last_in_target, target, parent); + blame_chunk(sb, d.tlno, d.plno, last_in_target, target, parent); - free_patch(patch); return 0; } @@@ -933,6 -826,23 +826,23 @@@ static void handle_split(struct scorebo } } + struct handle_split_cb_data { + struct scoreboard *sb; + struct blame_entry *ent; + struct origin *parent; + struct blame_entry *split; + long plno; + long tlno; + }; + + static void handle_split_cb(void *data, long same, long p_next, long t_next) + { + struct handle_split_cb_data *d = data; + handle_split(d->sb, d->ent, d->tlno, d->plno, same, d->parent, d->split); + d->plno = p_next; + d->tlno = t_next; + } + /* * Find the lines from parent that are the same as ent so that * we can pass blames to it. file_p has the blob contents for @@@ -947,8 -857,9 +857,9 @@@ static void find_copy_in_blob(struct sc const char *cp; int cnt; mmfile_t file_o; - struct patch *patch; - int i, plno, tlno; + struct handle_split_cb_data d = { sb, ent, parent, split, 0, 0 }; + xpparam_t xpp; + xdemitconf_t xecfg; /* * Prepare mmfile that contains only the lines in ent. @@@ -963,24 -874,18 +874,18 @@@ } file_o.size = cp - file_o.ptr; - patch = compare_buffer(file_p, &file_o, 1); - /* * file_o is a part of final image we are annotating. * file_p partially may match that image. */ + memset(&xpp, 0, sizeof(xpp)); + xpp.flags = xdl_opts; + memset(&xecfg, 0, sizeof(xecfg)); + xecfg.ctxlen = 1; memset(split, 0, sizeof(struct blame_entry [3])); - plno = tlno = 0; - for (i = 0; i < patch->num; i++) { - struct chunk *chunk = &patch->chunks[i]; - - handle_split(sb, ent, tlno, plno, chunk->same, parent, split); - plno = chunk->p_next; - tlno = chunk->t_next; - } + xdi_diff_hunks(file_p, &file_o, handle_split_cb, &d, &xpp, &xecfg); /* remainder, if any, all match the preimage */ - handle_split(sb, ent, tlno, plno, ent->num_lines, parent, split); - free_patch(patch); + handle_split(sb, ent, d.tlno, d.plno, ent->num_lines, parent, split); } /* @@@ -1431,7 -1336,7 +1336,7 @@@ static void get_commit_info(struct comm int detailed) { int len; - char *tmp, *endp; + char *tmp, *endp, *reencoded, *message; static char author_buf[1024]; static char committer_buf[1024]; static char summary_buf[1024]; @@@ -1449,29 -1354,24 +1354,29 @@@ die("Cannot read commit %s", sha1_to_hex(commit->object.sha1)); } + reencoded = reencode_commit_message(commit, NULL); + message = reencoded ? reencoded : commit->buffer; ret->author = author_buf; - get_ac_line(commit->buffer, "\nauthor ", + get_ac_line(message, "\nauthor ", sizeof(author_buf), author_buf, &ret->author_mail, &ret->author_time, &ret->author_tz); - if (!detailed) + if (!detailed) { + free(reencoded); return; + } ret->committer = committer_buf; - get_ac_line(commit->buffer, "\ncommitter ", + get_ac_line(message, "\ncommitter ", sizeof(committer_buf), committer_buf, &ret->committer_mail, &ret->committer_time, &ret->committer_tz); ret->summary = summary_buf; - tmp = strstr(commit->buffer, "\n\n"); + tmp = strstr(message, "\n\n"); if (!tmp) { error_out: sprintf(summary_buf, "(%s)", sha1_to_hex(commit->object.sha1)); + free(reencoded); return; } tmp += 2; @@@ -1483,7 -1383,6 +1388,7 @@@ goto error_out; memcpy(summary_buf, tmp, len); summary_buf[len] = 0; + free(reencoded); } /* diff --combined diff.c index e368fef14f,f141e7c8ff..1918b73d53 --- a/diff.c +++ b/diff.c @@@ -11,7 -11,6 +11,7 @@@ #include "attr.h" #include "run-command.h" #include "utf8.h" +#include "userdiff.h" #ifdef NO_FAST_WORKING_DIRECTORY #define FAST_WORKING_DIRECTORY 0 @@@ -38,9 -37,6 +38,9 @@@ static char diff_colors[][COLOR_MAXLEN "\033[41m", /* WHITESPACE (red background) */ }; +static void diff_filespec_load_driver(struct diff_filespec *one); +static char *run_textconv(const char *, struct diff_filespec *, size_t *); + static int parse_diff_color_slot(const char *var, int ofs) { if (!strcasecmp(var+ofs, "plain")) @@@ -60,6 -56,80 +60,6 @@@ die("bad config variable '%s'", var); } -static struct ll_diff_driver { - const char *name; - struct ll_diff_driver *next; - const char *cmd; -} *user_diff, **user_diff_tail; - -/* - * Currently there is only "diff..command" variable; - * because there are "diff.color." variables, we are parsing - * this in a bit convoluted way to allow low level diff driver - * called "color". - */ -static int parse_lldiff_command(const char *var, const char *ep, const char *value) -{ - const char *name; - int namelen; - struct ll_diff_driver *drv; - - name = var + 5; - namelen = ep - name; - for (drv = user_diff; drv; drv = drv->next) - if (!strncmp(drv->name, name, namelen) && !drv->name[namelen]) - break; - if (!drv) { - drv = xcalloc(1, sizeof(struct ll_diff_driver)); - drv->name = xmemdupz(name, namelen); - if (!user_diff_tail) - user_diff_tail = &user_diff; - *user_diff_tail = drv; - user_diff_tail = &(drv->next); - } - - return git_config_string(&(drv->cmd), var, value); -} - -/* - * 'diff..funcname' attribute can be specified in the configuration - * to define a customized regexp to find the beginning of a function to - * be used for hunk header lines of "diff -p" style output. - */ -struct funcname_pattern_entry { - char *name; - char *pattern; - int cflags; -}; -static struct funcname_pattern_list { - struct funcname_pattern_list *next; - struct funcname_pattern_entry e; -} *funcname_pattern_list; - -static int parse_funcname_pattern(const char *var, const char *ep, const char *value, int cflags) -{ - const char *name; - int namelen; - struct funcname_pattern_list *pp; - - name = var + 5; /* "diff." */ - namelen = ep - name; - - for (pp = funcname_pattern_list; pp; pp = pp->next) - if (!strncmp(pp->e.name, name, namelen) && !pp->e.name[namelen]) - break; - if (!pp) { - pp = xcalloc(1, sizeof(*pp)); - pp->e.name = xmemdupz(name, namelen); - pp->next = funcname_pattern_list; - funcname_pattern_list = pp; - } - free(pp->e.pattern); - pp->e.pattern = xstrdup(value); - pp->e.cflags = cflags; - return 0; -} - /* * These are to give UI layer defaults. * The core-level commands such as git-diff-files should @@@ -92,11 -162,11 +92,11 @@@ int git_diff_ui_config(const char *var } if (!strcmp(var, "diff.external")) return git_config_string(&external_diff_cmd_cfg, var, value); - if (!prefixcmp(var, "diff.")) { - const char *ep = strrchr(var, '.'); - if (ep != var + 4 && !strcmp(ep, ".command")) - return parse_lldiff_command(var, ep, value); + switch (userdiff_config_porcelain(var, value)) { + case 0: break; + case -1: return -1; + default: return 0; } return git_diff_basic_config(var, value, cb); @@@ -123,10 -193,21 +123,10 @@@ int git_diff_basic_config(const char *v return 0; } - if (!prefixcmp(var, "diff.")) { - const char *ep = strrchr(var, '.'); - if (ep != var + 4) { - if (!strcmp(ep, ".funcname")) { - if (!value) - return config_error_nonbool(var); - return parse_funcname_pattern(var, ep, value, - 0); - } else if (!strcmp(ep, ".xfuncname")) { - if (!value) - return config_error_nonbool(var); - return parse_funcname_pattern(var, ep, value, - REG_EXTENDED); - } - } + switch (userdiff_config_basic(var, value)) { + case 0: break; + case -1: return -1; + default: return 0; } return git_color_default_config(var, value, cb); @@@ -293,19 -374,8 +293,19 @@@ static int fill_mmfile(mmfile_t *mf, st } else if (diff_populate_filespec(one, 0)) return -1; - mf->ptr = one->data; - mf->size = one->size; + + diff_filespec_load_driver(one); + if (one->driver->textconv) { + size_t size; + mf->ptr = run_textconv(one->driver->textconv, one, &size); + if (!mf->ptr) + return -1; + mf->size = size; + } + else { + mf->ptr = one->data; + mf->size = one->size; + } return 0; } @@@ -400,6 -470,7 +400,7 @@@ static void diff_words_show(struct diff mmfile_t minus, plus; int i; + memset(&xpp, 0, sizeof(xpp)); memset(&xecfg, 0, sizeof(xecfg)); minus.size = diff_words->minus.text.size; minus.ptr = xmalloc(minus.size); @@@ -1282,37 -1353,136 +1283,37 @@@ static void emit_binary_diff(FILE *file emit_binary_diff_body(file, two, one); } -static void setup_diff_attr_check(struct git_attr_check *check) +void diff_filespec_load_driver(struct diff_filespec *one) { - static struct git_attr *attr_diff; - - if (!attr_diff) { - attr_diff = git_attr("diff", 4); - } - check[0].attr = attr_diff; -} - -static void diff_filespec_check_attr(struct diff_filespec *one) -{ - struct git_attr_check attr_diff_check; - int check_from_data = 0; - - if (one->checked_attr) - return; - - setup_diff_attr_check(&attr_diff_check); - one->is_binary = 0; - one->funcname_pattern_ident = NULL; - - if (!git_checkattr(one->path, 1, &attr_diff_check)) { - const char *value; - - /* binaryness */ - value = attr_diff_check.value; - if (ATTR_TRUE(value)) - ; - else if (ATTR_FALSE(value)) - one->is_binary = 1; - else - check_from_data = 1; - - /* funcname pattern ident */ - if (ATTR_TRUE(value) || ATTR_FALSE(value) || ATTR_UNSET(value)) - ; - else - one->funcname_pattern_ident = value; - } - - if (check_from_data) { - if (!one->data && DIFF_FILE_VALID(one)) - diff_populate_filespec(one, 0); - - if (one->data) - one->is_binary = buffer_is_binary(one->data, one->size); - } + if (!one->driver) + one->driver = userdiff_find_by_path(one->path); + if (!one->driver) + one->driver = userdiff_find_by_name("default"); } int diff_filespec_is_binary(struct diff_filespec *one) { - diff_filespec_check_attr(one); + if (one->is_binary == -1) { + diff_filespec_load_driver(one); + if (one->driver->binary != -1) + one->is_binary = one->driver->binary; + else { + if (!one->data && DIFF_FILE_VALID(one)) + diff_populate_filespec(one, 0); + if (one->data) + one->is_binary = buffer_is_binary(one->data, + one->size); + if (one->is_binary == -1) + one->is_binary = 0; + } + } return one->is_binary; } -static const struct funcname_pattern_entry *funcname_pattern(const char *ident) -{ - struct funcname_pattern_list *pp; - - for (pp = funcname_pattern_list; pp; pp = pp->next) - if (!strcmp(ident, pp->e.name)) - return &pp->e; - return NULL; -} - -static const struct funcname_pattern_entry builtin_funcname_pattern[] = { - { "bibtex", "(@[a-zA-Z]{1,}[ \t]*\\{{0,1}[ \t]*[^ \t\"@',\\#}{~%]*).*$", - REG_EXTENDED }, - { "html", "^[ \t]*(<[Hh][1-6][ \t].*>.*)$", REG_EXTENDED }, - { "java", - "!^[ \t]*(catch|do|for|if|instanceof|new|return|switch|throw|while)\n" - "^[ \t]*(([ \t]*[A-Za-z_][A-Za-z_0-9]*){2,}[ \t]*\\([^;]*)$", - REG_EXTENDED }, - { "objc", - /* Negate C statements that can look like functions */ - "!^[ \t]*(do|for|if|else|return|switch|while)\n" - /* Objective-C methods */ - "^[ \t]*([-+][ \t]*\\([ \t]*[A-Za-z_][A-Za-z_0-9* \t]*\\)[ \t]*[A-Za-z_].*)$\n" - /* C functions */ - "^[ \t]*(([ \t]*[A-Za-z_][A-Za-z_0-9]*){2,}[ \t]*\\([^;]*)$\n" - /* Objective-C class/protocol definitions */ - "^(@(implementation|interface|protocol)[ \t].*)$", - REG_EXTENDED }, - { "pascal", - "^((procedure|function|constructor|destructor|interface|" - "implementation|initialization|finalization)[ \t]*.*)$" - "\n" - "^(.*=[ \t]*(class|record).*)$", - REG_EXTENDED }, - { "php", "^[\t ]*((function|class).*)", REG_EXTENDED }, - { "python", "^[ \t]*((class|def)[ \t].*)$", REG_EXTENDED }, - { "ruby", "^[ \t]*((class|module|def)[ \t].*)$", - REG_EXTENDED }, - { "tex", - "^(\\\\((sub)*section|chapter|part)\\*{0,1}\\{.*)$", - REG_EXTENDED }, -}; - -static const struct funcname_pattern_entry *diff_funcname_pattern(struct diff_filespec *one) +static const struct userdiff_funcname *diff_funcname_pattern(struct diff_filespec *one) { - const char *ident; - const struct funcname_pattern_entry *pe; - int i; - - diff_filespec_check_attr(one); - ident = one->funcname_pattern_ident; - - if (!ident) - /* - * If the config file has "funcname.default" defined, that - * regexp is used; otherwise NULL is returned and xemit uses - * the built-in default. - */ - return funcname_pattern("default"); - - /* Look up custom "funcname.$ident" regexp from config. */ - pe = funcname_pattern(ident); - if (pe) - return pe; - - /* - * And define built-in fallback patterns here. Note that - * these can be overridden by the user's config settings. - */ - for (i = 0; i < ARRAY_SIZE(builtin_funcname_pattern); i++) - if (!strcmp(ident, builtin_funcname_pattern[i].name)) - return &builtin_funcname_pattern[i]; - - return NULL; + diff_filespec_load_driver(one); + return one->driver->funcname.pattern ? &one->driver->funcname : NULL; } void diff_set_mnemonic_prefix(struct diff_options *options, const char *a, const char *b) @@@ -1410,12 -1580,13 +1411,13 @@@ static void builtin_diff(const char *na xdemitconf_t xecfg; xdemitcb_t ecb; struct emit_callback ecbdata; - const struct funcname_pattern_entry *pe; + const struct userdiff_funcname *pe; pe = diff_funcname_pattern(one); if (!pe) pe = diff_funcname_pattern(two); + memset(&xpp, 0, sizeof(xpp)); memset(&xecfg, 0, sizeof(xecfg)); memset(&ecbdata, 0, sizeof(ecbdata)); ecbdata.label_path = lbl; @@@ -1489,6 -1660,7 +1491,7 @@@ static void builtin_diffstat(const cha xdemitconf_t xecfg; xdemitcb_t ecb; + memset(&xpp, 0, sizeof(xpp)); memset(&xecfg, 0, sizeof(xecfg)); xpp.flags = XDF_NEED_MINIMAL | o->xdl_opts; xdi_diff_outf(&mf1, &mf2, diffstat_consume, diffstat, @@@ -1535,6 -1707,7 +1538,7 @@@ static void builtin_checkdiff(const cha xdemitconf_t xecfg; xdemitcb_t ecb; + memset(&xpp, 0, sizeof(xpp)); memset(&xecfg, 0, sizeof(xecfg)); xecfg.ctxlen = 1; /* at least one context line */ xpp.flags = XDF_NEED_MINIMAL; @@@ -1564,7 -1737,6 +1568,7 @@@ struct diff_filespec *alloc_filespec(co spec->path = (char *)(spec + 1); memcpy(spec->path, path, namelen+1); spec->count = 1; + spec->is_binary = -1; return spec; } @@@ -1949,6 -2121,29 +1953,6 @@@ static void run_external_diff(const cha } } -static const char *external_diff_attr(const char *name) -{ - struct git_attr_check attr_diff_check; - - if (!name) - return NULL; - - setup_diff_attr_check(&attr_diff_check); - if (!git_checkattr(name, 1, &attr_diff_check)) { - const char *value = attr_diff_check.value; - if (!ATTR_TRUE(value) && - !ATTR_FALSE(value) && - !ATTR_UNSET(value)) { - struct ll_diff_driver *drv; - - for (drv = user_diff; drv; drv = drv->next) - if (!strcmp(drv->name, value)) - return drv->cmd; - } - } - return NULL; -} - static void run_diff_cmd(const char *pgm, const char *name, const char *other, @@@ -1962,9 -2157,9 +1966,9 @@@ if (!DIFF_OPT_TST(o, ALLOW_EXTERNAL)) pgm = NULL; else { - const char *cmd = external_diff_attr(attr_path); - if (cmd) - pgm = cmd; + struct userdiff_driver *drv = userdiff_find_by_path(attr_path); + if (drv && drv->external) + pgm = drv->external; } if (pgm) { @@@ -2958,6 -3153,7 +2962,7 @@@ static int diff_get_patch_id(struct dif struct diff_filepair *p = q->queue[i]; int len1, len2; + memset(&xpp, 0, sizeof(xpp)); memset(&xecfg, 0, sizeof(xecfg)); if (p->status == 0) return error("internal diff status error"); @@@ -3387,34 -3583,3 +3392,34 @@@ void diff_unmerge(struct diff_options * fill_filespec(one, sha1, mode); diff_queue(&diff_queued_diff, one, two)->is_unmerged = 1; } + +static char *run_textconv(const char *pgm, struct diff_filespec *spec, + size_t *outsize) +{ + struct diff_tempfile temp; + const char *argv[3]; + const char **arg = argv; + struct child_process child; + struct strbuf buf = STRBUF_INIT; + + prepare_temp_file(spec->path, &temp, spec); + *arg++ = pgm; + *arg++ = temp.name; + *arg = NULL; + + memset(&child, 0, sizeof(child)); + child.argv = argv; + child.out = -1; + if (start_command(&child) != 0 || + strbuf_read(&buf, child.out, 0) < 0 || + finish_command(&child) != 0) { + if (temp.name == temp.tmp_path) + unlink(temp.name); + error("error running textconv command '%s'", pgm); + return NULL; + } + if (temp.name == temp.tmp_path) + unlink(temp.name); + + return strbuf_detach(&buf, outsize); +} diff --combined xdiff-interface.c index 49e06af710,70794c71fc..e8ef46d10d --- a/xdiff-interface.c +++ b/xdiff-interface.c @@@ -1,6 -1,9 +1,9 @@@ #include "cache.h" #include "xdiff-interface.h" - #include "strbuf.h" + #include "xdiff/xtypes.h" + #include "xdiff/xdiffi.h" + #include "xdiff/xemit.h" + #include "xdiff/xmacros.h" struct xdiff_emit_state { xdiff_emit_consume_fn consume; @@@ -153,6 -156,50 +156,50 @@@ int xdi_diff_outf(mmfile_t *mf1, mmfile return ret; } + struct xdiff_emit_hunk_state { + xdiff_emit_hunk_consume_fn consume; + void *consume_callback_data; + }; + + static int process_diff(xdfenv_t *xe, xdchange_t *xscr, xdemitcb_t *ecb, + xdemitconf_t const *xecfg) + { + long s1, s2, same, p_next, t_next; + xdchange_t *xch, *xche; + struct xdiff_emit_hunk_state *state = ecb->priv; + xdiff_emit_hunk_consume_fn fn = state->consume; + void *consume_callback_data = state->consume_callback_data; + + for (xch = xscr; xch; xch = xche->next) { + xche = xdl_get_hunk(xch, xecfg); + + s1 = XDL_MAX(xch->i1 - xecfg->ctxlen, 0); + s2 = XDL_MAX(xch->i2 - xecfg->ctxlen, 0); + same = s2 + XDL_MAX(xch->i1 - s1, 0); + p_next = xche->i1 + xche->chg1; + t_next = xche->i2 + xche->chg2; + + fn(consume_callback_data, same, p_next, t_next); + } + return 0; + } + + int xdi_diff_hunks(mmfile_t *mf1, mmfile_t *mf2, + xdiff_emit_hunk_consume_fn fn, void *consume_callback_data, + xpparam_t const *xpp, xdemitconf_t *xecfg) + { + struct xdiff_emit_hunk_state state; + xdemitcb_t ecb; + + memset(&state, 0, sizeof(state)); + memset(&ecb, 0, sizeof(ecb)); + state.consume = fn; + state.consume_callback_data = consume_callback_data; + xecfg->emit_func = (void (*)())process_diff; + ecb.priv = &state; + return xdi_diff(mf1, mf2, xpp, xecfg, &ecb); + } + int read_mmfile(mmfile_t *ptr, const char *filename) { struct stat st; @@@ -199,16 -246,6 +246,16 @@@ static long ff_regexp(const char *line /* Exclude terminating newline (and cr) from matching */ if (len > 0 && line[len-1] == '\n') { + if (len > 1 && line[len-2] == '\r') + len -= 2; + else + len--; + } + + line_buffer = xstrndup(line, len); /* make NUL terminated */ + + /* Exclude terminating newline (and cr) from matching */ + if (len > 0 && line[len-1] == '\n') { if (len > 1 && line[len-2] == '\r') len -= 2; else