exclude: do strcmp as much as possible before fnmatch
[gitweb.git] / pretty.c
index efd62e8ae7891f42910d49ed1c9538844721762c..8b1ea9ffad2a0b5c5cb5c15cc5057a8a7132da07 100644 (file)
--- a/pretty.c
+++ b/pretty.c
@@ -9,6 +9,7 @@
 #include "notes.h"
 #include "color.h"
 #include "reflog-walk.h"
+#include "gpg-interface.h"
 
 static char *user_format;
 static struct cmt_fmt_map {
@@ -438,12 +439,14 @@ static char *get_header(const struct commit *commit, const char *key)
        int key_len = strlen(key);
        const char *line = commit->buffer;
 
-       for (;;) {
+       while (line) {
                const char *eol = strchr(line, '\n'), *next;
 
                if (line == eol)
                        return NULL;
                if (!eol) {
+                       warning("malformed commit (header is missing newline): %s",
+                               sha1_to_hex(commit->object.sha1));
                        eol = line + strlen(line);
                        next = NULL;
                } else
@@ -455,6 +458,7 @@ static char *get_header(const struct commit *commit, const char *key)
                }
                line = next;
        }
+       return NULL;
 }
 
 static char *replace_encoding_header(char *buf, const char *encoding)
@@ -530,41 +534,26 @@ static size_t format_person_part(struct strbuf *sb, char part,
 {
        /* currently all placeholders have same length */
        const int placeholder_len = 2;
-       int start, end, tz = 0;
+       int tz;
        unsigned long date = 0;
-       char *ep;
-       const char *name_start, *name_end, *mail_start, *mail_end, *msg_end = msg+len;
        char person_name[1024];
        char person_mail[1024];
+       struct ident_split s;
+       const char *name_start, *name_end, *mail_start, *mail_end;
 
-       /* advance 'end' to point to email start delimiter */
-       for (end = 0; end < len && msg[end] != '<'; end++)
-               ; /* do nothing */
-
-       /*
-        * When end points at the '<' that we found, it should have
-        * matching '>' later, which means 'end' must be strictly
-        * below len - 1.
-        */
-       if (end >= len - 2)
+       if (split_ident_line(&s, msg, len) < 0)
                goto skip;
 
-       /* Seek for both name and email part */
-       name_start = msg;
-       name_end = msg+end;
-       while (name_end > name_start && isspace(*(name_end-1)))
-               name_end--;
-       mail_start = msg+end+1;
-       mail_end = mail_start;
-       while (mail_end < msg_end && *mail_end != '>')
-               mail_end++;
-       if (mail_end == msg_end)
-               goto skip;
-       end = mail_end-msg;
+       name_start = s.name_begin;
+       name_end = s.name_end;
+       mail_start = s.mail_begin;
+       mail_end = s.mail_end;
 
        if (part == 'N' || part == 'E') { /* mailmap lookup */
-               strlcpy(person_name, name_start, name_end-name_start+1);
-               strlcpy(person_mail, mail_start, mail_end-mail_start+1);
+               snprintf(person_name, sizeof(person_name), "%.*s",
+                        (int)(name_end - name_start), name_start);
+               snprintf(person_mail, sizeof(person_mail), "%.*s",
+                        (int)(mail_end - mail_start), mail_start);
                mailmap_name(person_mail, sizeof(person_mail), person_name, sizeof(person_name));
                name_start = person_name;
                name_end = name_start + strlen(person_name);
@@ -580,28 +569,20 @@ static size_t format_person_part(struct strbuf *sb, char part,
                return placeholder_len;
        }
 
-       /* advance 'start' to point to date start delimiter */
-       for (start = end + 1; start < len && isspace(msg[start]); start++)
-               ; /* do nothing */
-       if (start >= len)
-               goto skip;
-       date = strtoul(msg + start, &ep, 10);
-       if (msg + start == ep)
+       if (!s.date_begin)
                goto skip;
 
+       date = strtoul(s.date_begin, NULL, 10);
+
        if (part == 't') {      /* date, UNIX timestamp */
-               strbuf_add(sb, msg + start, ep - (msg + start));
+               strbuf_add(sb, s.date_begin, s.date_end - s.date_begin);
                return placeholder_len;
        }
 
        /* parse tz */
-       for (start = ep - msg + 1; start < len && isspace(msg[start]); start++)
-               ; /* do nothing */
-       if (start + 1 < len) {
-               tz = strtoul(msg + start + 1, NULL, 10);
-               if (msg[start] == '-')
-                       tz = -tz;
-       }
+       tz = strtoul(s.tz_begin + 1, NULL, 10);
+       if (*s.tz_begin == '-')
+               tz = -tz;
 
        switch (part) {
        case 'd':       /* date */
@@ -620,8 +601,9 @@ static size_t format_person_part(struct strbuf *sb, char part,
 
 skip:
        /*
-        * bogus commit, 'sb' cannot be updated, but we still need to
-        * compute a valid return value.
+        * reading from either a bogus commit, or a reflog entry with
+        * %gn, %ge, etc.; 'sb' cannot be updated, but we still need
+        * to compute a valid return value.
         */
        if (part == 'n' || part == 'e' || part == 't' || part == 'd'
            || part == 'D' || part == 'r' || part == 'i')
@@ -640,6 +622,12 @@ struct format_commit_context {
        const struct pretty_print_context *pretty_ctx;
        unsigned commit_header_parsed:1;
        unsigned commit_message_parsed:1;
+       unsigned commit_signature_parsed:1;
+       struct {
+               char *gpg_output;
+               char good_bad;
+               char *signer;
+       } signature;
        char *message;
        size_t width, indent1, indent2;
 
@@ -822,6 +810,76 @@ static void rewrap_message_tail(struct strbuf *sb,
        c->indent2 = new_indent2;
 }
 
+static struct {
+       char result;
+       const char *check;
+} signature_check[] = {
+       { 'G', ": Good signature from " },
+       { 'B', ": BAD signature from " },
+};
+
+static void parse_signature_lines(struct format_commit_context *ctx)
+{
+       const char *buf = ctx->signature.gpg_output;
+       int i;
+
+       for (i = 0; i < ARRAY_SIZE(signature_check); i++) {
+               const char *found = strstr(buf, signature_check[i].check);
+               const char *next;
+               if (!found)
+                       continue;
+               ctx->signature.good_bad = signature_check[i].result;
+               found += strlen(signature_check[i].check);
+               next = strchrnul(found, '\n');
+               ctx->signature.signer = xmemdupz(found, next - found);
+               break;
+       }
+}
+
+static void parse_commit_signature(struct format_commit_context *ctx)
+{
+       struct strbuf payload = STRBUF_INIT;
+       struct strbuf signature = STRBUF_INIT;
+       struct strbuf gpg_output = STRBUF_INIT;
+       int status;
+
+       ctx->commit_signature_parsed = 1;
+
+       if (parse_signed_commit(ctx->commit->object.sha1,
+                               &payload, &signature) <= 0)
+               goto out;
+       status = verify_signed_buffer(payload.buf, payload.len,
+                                     signature.buf, signature.len,
+                                     &gpg_output);
+       if (status && !gpg_output.len)
+               goto out;
+       ctx->signature.gpg_output = strbuf_detach(&gpg_output, NULL);
+       parse_signature_lines(ctx);
+
+ out:
+       strbuf_release(&gpg_output);
+       strbuf_release(&payload);
+       strbuf_release(&signature);
+}
+
+
+static int format_reflog_person(struct strbuf *sb,
+                               char part,
+                               struct reflog_walk_info *log,
+                               enum date_mode dmode)
+{
+       const char *ident;
+
+       if (!log)
+               return 2;
+
+       ident = get_reflog_ident(log);
+       if (!ident)
+               return 2;
+
+       return format_person_part(sb, part, ident, strlen(ident), dmode);
+}
+
 static size_t format_commit_one(struct strbuf *sb, const char *placeholder,
                                void *context)
 {
@@ -956,15 +1014,22 @@ static size_t format_commit_one(struct strbuf *sb, const char *placeholder,
                        if (c->pretty_ctx->reflog_info)
                                get_reflog_selector(sb,
                                                    c->pretty_ctx->reflog_info,
-                                                   c->pretty_ctx->date_mode_explicit ?
-                                                     c->pretty_ctx->date_mode :
-                                                     DATE_NORMAL,
+                                                   c->pretty_ctx->date_mode,
+                                                   c->pretty_ctx->date_mode_explicit,
                                                    (placeholder[1] == 'd'));
                        return 2;
                case 's':       /* reflog message */
                        if (c->pretty_ctx->reflog_info)
                                get_reflog_message(sb, c->pretty_ctx->reflog_info);
                        return 2;
+               case 'n':
+               case 'N':
+               case 'e':
+               case 'E':
+                       return format_reflog_person(sb,
+                                                   placeholder[1],
+                                                   c->pretty_ctx->reflog_info,
+                                                   c->pretty_ctx->date_mode);
                }
                return 0;       /* unknown %g placeholder */
        case 'N':
@@ -976,6 +1041,30 @@ static size_t format_commit_one(struct strbuf *sb, const char *placeholder,
                return 0;
        }
 
+       if (placeholder[0] == 'G') {
+               if (!c->commit_signature_parsed)
+                       parse_commit_signature(c);
+               switch (placeholder[1]) {
+               case 'G':
+                       if (c->signature.gpg_output)
+                               strbuf_addstr(sb, c->signature.gpg_output);
+                       break;
+               case '?':
+                       switch (c->signature.good_bad) {
+                       case 'G':
+                       case 'B':
+                               strbuf_addch(sb, c->signature.good_bad);
+                       }
+                       break;
+               case 'S':
+                       if (c->signature.signer)
+                               strbuf_addstr(sb, c->signature.signer);
+                       break;
+               }
+               return 2;
+       }
+
+
        /* For the rest we have to parse the commit header. */
        if (!c->commit_header_parsed)
                parse_commit_header(c);
@@ -1096,7 +1185,6 @@ void format_commit_message(const struct commit *commit,
 {
        struct format_commit_context context;
        static const char utf8[] = "UTF-8";
-       const char *enc;
        const char *output_enc = pretty_ctx->output_encoding;
 
        memset(&context, 0, sizeof(context));
@@ -1105,10 +1193,13 @@ void format_commit_message(const struct commit *commit,
        context.wrap_start = sb->len;
        context.message = commit->buffer;
        if (output_enc) {
-               enc = get_header(commit, "encoding");
-               enc = enc ? enc : utf8;
-               if (strcmp(enc, output_enc))
+               char *enc = get_header(commit, "encoding");
+               if (strcmp(enc ? enc : utf8, output_enc)) {
                        context.message = logmsg_reencode(commit, output_enc);
+                       if (!context.message)
+                               context.message = commit->buffer;
+               }
+               free(enc);
        }
 
        strbuf_expand(sb, format, format_commit_item, &context);
@@ -1116,6 +1207,8 @@ void format_commit_message(const struct commit *commit,
 
        if (context.message != commit->buffer)
                free(context.message);
+       free(context.signature.gpg_output);
+       free(context.signature.signer);
 }
 
 static void pp_header(const struct pretty_print_context *pp,