Submodules: Use "ignore" settings from .gitmodules too for diff and status
[gitweb.git] / log-tree.c
index bd8b9e45ab46b8664c8b7016b33bee22f86c9e0d..b46ed3baef7d9d9971a3886d700059217fbe974a 100644 (file)
 #include "cache.h"
 #include "diff.h"
 #include "commit.h"
+#include "tag.h"
 #include "graph.h"
 #include "log-tree.h"
 #include "reflog-walk.h"
+#include "refs.h"
+#include "string-list.h"
+#include "color.h"
 
 struct decoration name_decoration = { "object names" };
 
+enum decoration_type {
+       DECORATION_NONE = 0,
+       DECORATION_REF_LOCAL,
+       DECORATION_REF_REMOTE,
+       DECORATION_REF_TAG,
+       DECORATION_REF_STASH,
+       DECORATION_REF_HEAD,
+};
+
+static char decoration_colors[][COLOR_MAXLEN] = {
+       GIT_COLOR_RESET,
+       GIT_COLOR_BOLD_GREEN,   /* REF_LOCAL */
+       GIT_COLOR_BOLD_RED,     /* REF_REMOTE */
+       GIT_COLOR_BOLD_YELLOW,  /* REF_TAG */
+       GIT_COLOR_BOLD_MAGENTA, /* REF_STASH */
+       GIT_COLOR_BOLD_CYAN,    /* REF_HEAD */
+};
+
+static const char *decorate_get_color(int decorate_use_color, enum decoration_type ix)
+{
+       if (decorate_use_color)
+               return decoration_colors[ix];
+       return "";
+}
+
+static int parse_decorate_color_slot(const char *slot)
+{
+       /*
+        * We're comparing with 'ignore-case' on
+        * (because config.c sets them all tolower),
+        * but let's match the letters in the literal
+        * string values here with how they are
+        * documented in Documentation/config.txt, for
+        * consistency.
+        *
+        * We love being consistent, don't we?
+        */
+       if (!strcasecmp(slot, "branch"))
+               return DECORATION_REF_LOCAL;
+       if (!strcasecmp(slot, "remoteBranch"))
+               return DECORATION_REF_REMOTE;
+       if (!strcasecmp(slot, "tag"))
+               return DECORATION_REF_TAG;
+       if (!strcasecmp(slot, "stash"))
+               return DECORATION_REF_STASH;
+       if (!strcasecmp(slot, "HEAD"))
+               return DECORATION_REF_HEAD;
+       return -1;
+}
+
+int parse_decorate_color_config(const char *var, const int ofs, const char *value)
+{
+       int slot = parse_decorate_color_slot(var + ofs);
+       if (slot < 0)
+               return 0;
+       if (!value)
+               return config_error_nonbool(var);
+       color_parse(value, var, decoration_colors[slot]);
+       return 0;
+}
+
+/*
+ * log-tree.c uses DIFF_OPT_TST for determining whether to use color
+ * for showing the commit sha1, use the same check for --decorate
+ */
+#define decorate_get_color_opt(o, ix) \
+       decorate_get_color(DIFF_OPT_TST((o), COLOR_DIFF), ix)
+
+static void add_name_decoration(enum decoration_type type, const char *name, struct object *obj)
+{
+       int nlen = strlen(name);
+       struct name_decoration *res = xmalloc(sizeof(struct name_decoration) + nlen);
+       memcpy(res->name, name, nlen + 1);
+       res->type = type;
+       res->next = add_decoration(&name_decoration, obj, res);
+}
+
+static int add_ref_decoration(const char *refname, const unsigned char *sha1, int flags, void *cb_data)
+{
+       struct object *obj = parse_object(sha1);
+       enum decoration_type type = DECORATION_NONE;
+       if (!obj)
+               return 0;
+
+       if (!prefixcmp(refname, "refs/heads"))
+               type = DECORATION_REF_LOCAL;
+       else if (!prefixcmp(refname, "refs/remotes"))
+               type = DECORATION_REF_REMOTE;
+       else if (!prefixcmp(refname, "refs/tags"))
+               type = DECORATION_REF_TAG;
+       else if (!prefixcmp(refname, "refs/stash"))
+               type = DECORATION_REF_STASH;
+       else if (!prefixcmp(refname, "HEAD"))
+               type = DECORATION_REF_HEAD;
+
+       if (!cb_data || *(int *)cb_data == DECORATE_SHORT_REFS)
+               refname = prettify_refname(refname);
+       add_name_decoration(type, refname, obj);
+       while (obj->type == OBJ_TAG) {
+               obj = ((struct tag *)obj)->tagged;
+               if (!obj)
+                       break;
+               add_name_decoration(DECORATION_REF_TAG, refname, obj);
+       }
+       return 0;
+}
+
+void load_ref_decorations(int flags)
+{
+       static int loaded;
+       if (!loaded) {
+               loaded = 1;
+               for_each_ref(add_ref_decoration, &flags);
+               head_ref(add_ref_decoration, &flags);
+       }
+}
+
 static void show_parents(struct commit *commit, int abbrev)
 {
        struct commit_list *p;
        for (p = commit->parents; p ; p = p->next) {
                struct commit *parent = p->item;
-               printf(" %s", diff_unique_abbrev(parent->object.sha1, abbrev));
+               printf(" %s", find_unique_abbrev(parent->object.sha1, abbrev));
        }
 }
 
-void show_decorations(struct commit *commit)
+void show_decorations(struct rev_info *opt, struct commit *commit)
 {
        const char *prefix;
        struct name_decoration *decoration;
-
+       const char *color_commit =
+               diff_get_color_opt(&opt->diffopt, DIFF_COMMIT);
+       const char *color_reset =
+               decorate_get_color_opt(&opt->diffopt, DECORATION_NONE);
+
+       if (opt->show_source && commit->util)
+               printf("\t%s", (char *) commit->util);
+       if (!opt->show_decorations)
+               return;
        decoration = lookup_decoration(&name_decoration, &commit->object);
        if (!decoration)
                return;
        prefix = " (";
        while (decoration) {
-               printf("%s%s", prefix, decoration->name);
+               printf("%s", prefix);
+               fputs(decorate_get_color_opt(&opt->diffopt, decoration->type),
+                     stdout);
+               if (decoration->type == DECORATION_REF_TAG)
+                       fputs("tag: ", stdout);
+               printf("%s", decoration->name);
+               fputs(color_reset, stdout);
+               fputs(color_commit, stdout);
                prefix = ", ";
                decoration = decoration->next;
        }
@@ -39,18 +175,18 @@ void show_decorations(struct commit *commit)
  */
 static int detect_any_signoff(char *letter, int size)
 {
-       char ch, *cp;
+       char *cp;
        int seen_colon = 0;
        int seen_at = 0;
        int seen_name = 0;
        int seen_head = 0;
 
        cp = letter + size;
-       while (letter <= --cp && (ch = *cp) == '\n')
+       while (letter <= --cp && *cp == '\n')
                continue;
 
        while (letter <= cp) {
-               ch = *cp--;
+               char ch = *cp--;
                if (ch == '\n')
                        break;
 
@@ -126,25 +262,33 @@ static unsigned int digits_in_number(unsigned int number)
        return result;
 }
 
-static int has_non_ascii(const char *s)
+void get_patch_filename(struct commit *commit, int nr, const char *suffix,
+                       struct strbuf *buf)
 {
-       int ch;
-       if (!s)
-               return 0;
-       while ((ch = *s++) != '\0') {
-               if (non_ascii(ch))
-                       return 1;
+       int suffix_len = strlen(suffix) + 1;
+       int start_len = buf->len;
+
+       strbuf_addf(buf, commit ? "%04d-" : "%d", nr);
+       if (commit) {
+               int max_len = start_len + FORMAT_PATCH_NAME_MAX - suffix_len;
+               struct pretty_print_context ctx = {0};
+               ctx.date_mode = DATE_NORMAL;
+
+               format_commit_message(commit, "%f", buf, &ctx);
+               if (max_len < buf->len)
+                       strbuf_setlen(buf, max_len);
+               strbuf_addstr(buf, suffix);
        }
-       return 0;
 }
 
-void log_write_email_headers(struct rev_info *opt, const char *name,
+void log_write_email_headers(struct rev_info *opt, struct commit *commit,
                             const char **subject_p,
                             const char **extra_headers_p,
                             int *need_8bit_cte_p)
 {
        const char *subject = NULL;
        const char *extra_headers = opt->extra_headers;
+       const char *name = sha1_to_hex(commit->object.sha1);
 
        *need_8bit_cte_p = 0; /* unknown */
        if (opt->total > 0) {
@@ -171,14 +315,19 @@ void log_write_email_headers(struct rev_info *opt, const char *name,
                printf("Message-Id: <%s>\n", opt->message_id);
                graph_show_oneline(opt->graph);
        }
-       if (opt->ref_message_id) {
-               printf("In-Reply-To: <%s>\nReferences: <%s>\n",
-                      opt->ref_message_id, opt->ref_message_id);
+       if (opt->ref_message_ids && opt->ref_message_ids->nr > 0) {
+               int i, n;
+               n = opt->ref_message_ids->nr;
+               printf("In-Reply-To: <%s>\n", opt->ref_message_ids->items[n-1].string);
+               for (i = 0; i < n; i++)
+                       printf("%s<%s>\n", (i > 0 ? "\t" : "References: "),
+                              opt->ref_message_ids->items[i].string);
                graph_show_oneline(opt->graph);
        }
        if (opt->mime_boundary) {
                static char subject_buffer[1024];
                static char buffer[1024];
+               struct strbuf filename =  STRBUF_INIT;
                *need_8bit_cte_p = -1; /* NEVER */
                snprintf(subject_buffer, sizeof(subject_buffer) - 1,
                         "%s"
@@ -197,18 +346,21 @@ void log_write_email_headers(struct rev_info *opt, const char *name,
                         mime_boundary_leader, opt->mime_boundary);
                extra_headers = subject_buffer;
 
+               get_patch_filename(opt->numbered_files ? NULL : commit, opt->nr,
+                                   opt->patch_suffix, &filename);
                snprintf(buffer, sizeof(buffer) - 1,
                         "\n--%s%s\n"
                         "Content-Type: text/x-patch;"
-                        " name=\"%s.diff\"\n"
+                        " name=\"%s\"\n"
                         "Content-Transfer-Encoding: 8bit\n"
                         "Content-Disposition: %s;"
-                        " filename=\"%s.diff\"\n\n",
+                        " filename=\"%s\"\n\n",
                         mime_boundary_leader, opt->mime_boundary,
-                        name,
+                        filename.buf,
                         opt->no_inline ? "attachment" : "inline",
-                        name);
+                        filename.buf);
                opt->diffopt.stat_sep = buffer;
+               strbuf_release(&filename);
        }
        *subject_p = subject;
        *extra_headers_p = extra_headers;
@@ -216,15 +368,15 @@ void log_write_email_headers(struct rev_info *opt, const char *name,
 
 void show_log(struct rev_info *opt)
 {
-       struct strbuf msgbuf;
+       struct strbuf msgbuf = STRBUF_INIT;
        struct log_info *log = opt->loginfo;
        struct commit *commit = log->commit, *parent = log->parent;
-       int abbrev = opt->diffopt.abbrev;
        int abbrev_commit = opt->abbrev_commit ? opt->abbrev : 40;
-       const char *subject = NULL, *extra_headers = opt->extra_headers;
-       int need_8bit_cte = 0;
+       const char *extra_headers = opt->extra_headers;
+       struct pretty_print_context ctx = {0};
 
        opt->loginfo = NULL;
+       ctx.show_notes = opt->show_notes;
        if (!opt->verbose_header) {
                graph_show_commit(opt->graph);
 
@@ -240,10 +392,10 @@ void show_log(struct rev_info *opt)
                                        putchar('>');
                        }
                }
-               fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit), stdout);
+               fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit), stdout);
                if (opt->print_parents)
                        show_parents(commit, abbrev_commit);
-               show_decorations(commit);
+               show_decorations(opt, commit);
                if (opt->graph && !graph_is_commit_finished(opt->graph)) {
                        putchar('\n');
                        graph_show_remainder(opt->graph);
@@ -253,7 +405,8 @@ void show_log(struct rev_info *opt)
        }
 
        /*
-        * If use_terminator is set, add a newline at the end of the entry.
+        * If use_terminator is set, we already handled any record termination
+        * at the end of the last record.
         * Otherwise, add a diffopt.line_termination character before all
         * entries but the first.  (IOW, as a separator between entries)
         */
@@ -288,9 +441,8 @@ void show_log(struct rev_info *opt)
         */
 
        if (opt->commit_format == CMIT_FMT_EMAIL) {
-               log_write_email_headers(opt, sha1_to_hex(commit->object.sha1),
-                                       &subject, &extra_headers,
-                                       &need_8bit_cte);
+               log_write_email_headers(opt, commit, &ctx.subject, &extra_headers,
+                                       &ctx.need_8bit_cte);
        } else if (opt->commit_format != CMIT_FMT_USERFORMAT) {
                fputs(diff_get_color_opt(&opt->diffopt, DIFF_COMMIT), stdout);
                if (opt->commit_format != CMIT_FMT_ONELINE)
@@ -308,15 +460,15 @@ void show_log(struct rev_info *opt)
                                        putchar('>');
                        }
                }
-               fputs(diff_unique_abbrev(commit->object.sha1, abbrev_commit),
+               fputs(find_unique_abbrev(commit->object.sha1, abbrev_commit),
                      stdout);
                if (opt->print_parents)
                        show_parents(commit, abbrev_commit);
                if (parent)
                        printf(" (from %s)",
-                              diff_unique_abbrev(parent->object.sha1,
+                              find_unique_abbrev(parent->object.sha1,
                                                  abbrev_commit));
-               show_decorations(commit);
+               show_decorations(opt, commit);
                printf("%s", diff_get_color_opt(&opt->diffopt, DIFF_RESET));
                if (opt->commit_format == CMIT_FMT_ONELINE) {
                        putchar(' ');
@@ -333,7 +485,9 @@ void show_log(struct rev_info *opt)
                         */
                        show_reflog_message(opt->reflog_info,
                                    opt->commit_format == CMIT_FMT_ONELINE,
-                                   opt->date_mode);
+                                   opt->date_mode_explicit ?
+                                       opt->date_mode :
+                                       DATE_NORMAL);
                        if (opt->commit_format == CMIT_FMT_ONELINE)
                                return;
                }
@@ -345,12 +499,13 @@ void show_log(struct rev_info *opt)
        /*
         * And then the pretty-printed message itself
         */
-       strbuf_init(&msgbuf, 0);
-       if (need_8bit_cte >= 0)
-               need_8bit_cte = has_non_ascii(opt->add_signoff);
-       pretty_print_commit(opt->commit_format, commit, &msgbuf,
-                           abbrev, subject, extra_headers, opt->date_mode,
-                           need_8bit_cte);
+       if (ctx.need_8bit_cte >= 0)
+               ctx.need_8bit_cte = has_non_ascii(opt->add_signoff);
+       ctx.date_mode = opt->date_mode;
+       ctx.abbrev = opt->diffopt.abbrev;
+       ctx.after_subject = extra_headers;
+       ctx.reflog_info = opt->reflog_info;
+       pretty_print_commit(opt->commit_format, commit, &msgbuf, &ctx);
 
        if (opt->add_signoff)
                append_signoff(&msgbuf, opt->add_signoff);
@@ -406,6 +561,12 @@ int log_tree_diff_flush(struct rev_info *opt)
                        int pch = DIFF_FORMAT_DIFFSTAT | DIFF_FORMAT_PATCH;
                        if ((pch & opt->diffopt.output_format) == pch)
                                printf("---");
+                       if (opt->diffopt.output_prefix) {
+                               struct strbuf *msg = NULL;
+                               msg = opt->diffopt.output_prefix(&opt->diffopt,
+                                       opt->diffopt.output_prefix_data);
+                               fwrite(msg->buf, msg->len, 1, stdout);
+                       }
                        putchar('\n');
                }
        }
@@ -432,7 +593,7 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log
        struct commit_list *parents;
        unsigned const char *sha1 = commit->object.sha1;
 
-       if (!opt->diff)
+       if (!opt->diff && !DIFF_OPT_TST(&opt->diffopt, EXIT_WITH_STATUS))
                return 0;
 
        /* Root commit? */
@@ -451,6 +612,16 @@ static int log_tree_diff(struct rev_info *opt, struct commit *commit, struct log
                        return 0;
                else if (opt->combine_merges)
                        return do_diff_combined(opt, commit);
+               else if (opt->first_parent_only) {
+                       /*
+                        * Generate merge log entry only for the first
+                        * parent, showing summary diff of the others
+                        * we merged _in_.
+                        */
+                       diff_tree_sha1(parents->item->object.sha1, sha1, "", &opt->diffopt);
+                       log_tree_diff_flush(opt);
+                       return !opt->loginfo;
+               }
 
                /* If we show individual diffs, show the parent info */
                log->parent = parents->item;