Merge branch 'br/misc'

* br/misc:
  Use transparent background for the cgit logo
  ssdiff: anchors for ssdiff
  implement repo.logo and repo.logo-link

9 files changed, 74 insertions, 17 deletions

diff --git a/cgit.c b/cgit.c
index 71f3fc8..916feb4 100644
--- a/cgit.c
+++ b/cgit.c
@@ -64,27 +64,31 @@ void repo_config(struct cgit_repo *repo, const char *name, const char *value)
 	else if (!strcmp(name, "enable-log-linecount"))
 		repo->enable_log_linecount = ctx.cfg.enable_log_linecount * atoi(value);
 	else if (!strcmp(name, "enable-remote-branches"))
 		repo->enable_remote_branches = atoi(value);
 	else if (!strcmp(name, "enable-subject-links"))
 		repo->enable_subject_links = atoi(value);
 	else if (!strcmp(name, "max-stats"))
 		repo->max_stats = cgit_find_stats_period(value, NULL);
 	else if (!strcmp(name, "module-link"))
 		repo->module_link= xstrdup(value);
 	else if (!strcmp(name, "section"))
 		repo->section = xstrdup(value);
-	else if (!strcmp(name, "readme") && value != NULL) {
+	else if (!strcmp(name, "readme") && value != NULL)
 		repo->readme = xstrdup(value);
-	} else if (ctx.cfg.enable_filter_overrides) {
+	else if (!strcmp(name, "logo") && value != NULL)
+		repo->logo = xstrdup(value);
+	else if (!strcmp(name, "logo-link") && value != NULL)
+		repo->logo_link = xstrdup(value);
+	else if (ctx.cfg.enable_filter_overrides) {
 		if (!strcmp(name, "about-filter"))
 			repo->about_filter = new_filter(value, 0);
 		else if (!strcmp(name, "commit-filter"))
 			repo->commit_filter = new_filter(value, 0);
 		else if (!strcmp(name, "source-filter"))
 			repo->source_filter = new_filter(value, 1);
 	}
 }
 
 void config_cb(const char *name, const char *value)
 {
 	if (!strcmp(name, "section") || !strcmp(name, "repo.group"))
diff --git a/cgit.css b/cgit.css
index 008cff8..1d90057 100644
--- a/cgit.css
+++ b/cgit.css
@@ -284,25 +284,25 @@ table.blob td.lines {
 
 table.blob td.linenumbers {
 	margin: 0; padding: 0 0.5em 0 0.5em;
 	vertical-align: top;
 	text-align: right;
 	border-right: 1px solid gray;
 }
 
 table.blob pre {
 	padding: 0; margin: 0;
 }
 
-table.blob a.no {
+table.blob a.no, table.ssdiff a.no {
 	color: gray;
 	text-align: right;
 	text-decoration: none;
 }
 
 table.blob a.no a:hover {
 	color: black;
 }
 
 table.bin-blob {
 	margin-top: 0.5em;
 	border: solid 1px black;
diff --git a/cgit.h b/cgit.h
index 74aa340..b5f00fc 100644
--- a/cgit.h
+++ b/cgit.h
@@ -62,24 +62,26 @@ struct cgit_filter {
 
 struct cgit_repo {
 	char *url;
 	char *name;
 	char *path;
 	char *desc;
 	char *owner;
 	char *defbranch;
 	char *module_link;
 	char *readme;
 	char *section;
 	char *clone_url;
+	char *logo;
+	char *logo_link;
 	int snapshots;
 	int enable_commit_graph;
 	int enable_log_filecount;
 	int enable_log_linecount;
 	int enable_remote_branches;
 	int enable_subject_links;
 	int max_stats;
 	time_t mtime;
 	struct cgit_filter *about_filter;
 	struct cgit_filter *commit_filter;
 	struct cgit_filter *source_filter;
 };
diff --git a/cgit.png b/cgit.png
index d7f70bc..0bdf5a7 100644
--- a/cgit.png
+++ b/cgit.png
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index a832830..c3698a6 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -378,24 +378,33 @@ repo.enable-log-filecount::
 repo.enable-log-linecount::
 	A flag which can be used to disable the global setting
 	`enable-log-linecount'. Default value: none.
 
 repo.enable-remote-branches::
 	Flag which, when set to "1", will make cgit display remote branches
 	in the summary and refs views. Default value: <enable-remote-branches>.
 
 repo.enable-subject-links::
 	A flag which can be used to override the global setting
 	`enable-subject-links'. Default value: none.
 
+repo.logo::
+	Url which specifies the source of an image which will be used as a logo
+	on this repo's pages. Default value: global logo.
+
+repo.logo-link::
+	Url loaded when clicking on the cgit logo image. If unspecified the
+	calculated url of the repository index page will be used. Default
+	value: global logo-link.
+
 repo.max-stats::
 	Override the default maximum statistics period. Valid values are equal
 	to the values specified for the global "max-stats" setting. Default
 	value: none.
 
 repo.name::
 	The value to show as repository name. Default value: <repo.url>.
 
 repo.owner::
 	A value used to identify the owner of the repository. Default value:
 	none.
 
diff --git a/ui-diff.c b/ui-diff.c
index 7ff7e46..a53425d 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -25,24 +25,35 @@ static struct fileinfo {
 	unsigned short old_mode;
 	unsigned short new_mode;
 	char *old_path;
 	char *new_path;
 	unsigned int added;
 	unsigned int removed;
 	unsigned long old_size;
 	unsigned long new_size;
 	int binary:1;
 } *items;
 
 static int use_ssdiff = 0;
+static struct diff_filepair *current_filepair;
+
+struct diff_filespec *cgit_get_current_old_file(void)
+{
+	return current_filepair->one;
+}
+
+struct diff_filespec *cgit_get_current_new_file(void)
+{
+	return current_filepair->two;
+}
 
 static void print_fileinfo(struct fileinfo *info)
 {
 	char *class;
 
 	switch (info->status) {
 	case DIFF_STATUS_ADDED:
 		class = "add";
 		break;
 	case DIFF_STATUS_COPIED:
 		class = "cpy";
 		break;
@@ -275,24 +286,25 @@ static void print_ssdiff_link()
 				       ctx.qry.head, ctx.qry.sha1,
 				       ctx.qry.sha2, ctx.qry.path, 1);
 	}
 }
 
 static void filepair_cb(struct diff_filepair *pair)
 {
 	unsigned long old_size = 0;
 	unsigned long new_size = 0;
 	int binary = 0;
 	linediff_fn print_line_fn = print_line;
 
+	current_filepair = pair;
 	if (use_ssdiff) {
 		cgit_ssdiff_header_begin();
 		print_line_fn = cgit_ssdiff_line_cb;
 	}
 	header(pair->one->sha1, pair->one->path, pair->one->mode,
 	       pair->two->sha1, pair->two->path, pair->two->mode);
 	if (use_ssdiff)
 		cgit_ssdiff_header_end();
 	if (S_ISGITLINK(pair->one->mode) || S_ISGITLINK(pair->two->mode)) {
 		if (S_ISGITLINK(pair->one->mode))
 			print_line_fn(fmt("-Subproject %s", sha1_to_hex(pair->one->sha1)), 52);
 		if (S_ISGITLINK(pair->two->mode))
diff --git a/ui-diff.h b/ui-diff.h
index 70b2926..12d0c62 100644
--- a/ui-diff.h
+++ b/ui-diff.h
@@ -1,10 +1,16 @@
 #ifndef UI_DIFF_H
 #define UI_DIFF_H
 
 extern void cgit_print_diffstat(const unsigned char *old_sha1,
 				const unsigned char *new_sha1);
 
 extern void cgit_print_diff(const char *new_hex, const char *old_hex,
 			    const char *prefix);
 
+extern struct diff_filespec *cgit_get_current_old_file(void);
+extern struct diff_filespec *cgit_get_current_new_file(void);
+
+extern unsigned char old_rev_sha1[20];
+extern unsigned char new_rev_sha1[20];
+
 #endif /* UI_DIFF_H */
diff --git a/ui-shared.c b/ui-shared.c
index ae29615..7efae7a 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -747,35 +747,45 @@ static void cgit_print_path_crumbs(struct cgit_context *ctx, char *path)
 		*q = '\0';
 		html_txt("/");
 		cgit_self_link(p, NULL, NULL, ctx);
 		if (q < end)
 			*q = '/';
 		p = q + 1;
 	}
 	ctx->qry.path = old_path;
 }
 
 static void print_header(struct cgit_context *ctx)
 {
+	char *logo = NULL, *logo_link = NULL;
+
 	html("<table id='header'>\n");
 	html("<tr>\n");
 
-	if (ctx->cfg.logo && ctx->cfg.logo[0] != 0) {
+	if (ctx->repo && ctx->repo->logo && *ctx->repo->logo)
+		logo = ctx->repo->logo;
+	else
+		logo = ctx->cfg.logo;
+	if (ctx->repo && ctx->repo->logo_link && *ctx->repo->logo_link)
+		logo_link = ctx->repo->logo_link;
+	else
+		logo_link = ctx->cfg.logo_link;
+	if (logo && *logo) {
 		html("<td class='logo' rowspan='2'><a href='");
-		if (ctx->cfg.logo_link)
-			html_attr(ctx->cfg.logo_link);
+		if (logo_link && *logo_link)
+			html_attr(logo_link);
 		else
 			html_attr(cgit_rooturl());
 		html("'><img src='");
-		html_attr(ctx->cfg.logo);
+		html_attr(logo);
 		html("' alt='cgit logo'/></a></td>\n");
 	}
 
 	html("<td class='main'>");
 	if (ctx->repo) {
 		cgit_index_link("index", NULL, NULL, NULL, 0);
 		html(" : ");
 		cgit_summary_link(ctx->repo->name, ctx->repo->name, NULL, NULL);
 		html("</td><td class='form'>");
 		html("<form method='get' action=''>\n");
 		cgit_add_hidden_formfields(0, 1, ctx->qry.page);
 		html("<select name='h' onchange='this.form.submit();'>\n");
diff --git a/ui-ssdiff.c b/ui-ssdiff.c
index 408e620..2481585 100644
--- a/ui-ssdiff.c
+++ b/ui-ssdiff.c
@@ -1,15 +1,16 @@
 #include "cgit.h"
 #include "html.h"
 #include "ui-shared.h"
+#include "ui-diff.h"
 
 extern int use_ssdiff;
 
 static int current_old_line, current_new_line;
 
 struct deferred_lines {
 	int line_no;
 	char *line;
 	struct deferred_lines *next;
 };
 
 static struct deferred_lines *deferred_old, *deferred_old_last;
@@ -182,50 +183,63 @@ static void print_part_with_lcs(char *class, char *line, char *lcs)
 		}
 		html_txt(c);
 	}
 }
 
 static void print_ssdiff_line(char *class,
 			      int old_line_no,
 			      char *old_line,
 			      int new_line_no,
 			      char *new_line, int individual_chars)
 {
 	char *lcs = NULL;
+
 	if (old_line)
 		old_line = replace_tabs(old_line + 1);
 	if (new_line)
 		new_line = replace_tabs(new_line + 1);
 	if (individual_chars && old_line && new_line)
 		lcs = longest_common_subsequence(old_line, new_line);
-	html("<tr>");
-	if (old_line_no > 0)
-		htmlf("<td class='lineno'>%d</td><td class='%s'>",
-		      old_line_no, class);
-	else if (old_line)
+	html("<tr>\n");
+	if (old_line_no > 0) {
+		struct diff_filespec *old_file = cgit_get_current_old_file();
+		char *lineno_str = fmt("n%d", old_line_no);
+		char *id_str = fmt("%s#%s", is_null_sha1(old_file->sha1)?"HEAD":sha1_to_hex(old_rev_sha1), lineno_str);
+		html("<td class='lineno'><a class='no' href='");
+		html(cgit_fileurl(ctx.repo->url, "tree", old_file->path, id_str));
+		htmlf("' id='%s' name='%s'>%s</a>", lineno_str, lineno_str, lineno_str + 1);
+		html("</td>");
+		htmlf("<td class='%s'>", class);
+	} else if (old_line)
 		htmlf("<td class='lineno'></td><td class='%s'>", class);
 	else
 		htmlf("<td class='lineno'></td><td class='%s_dark'>", class);
 	if (old_line) {
 		if (lcs)
 			print_part_with_lcs("del", old_line, lcs);
 		else
 			html_txt(old_line);
 	}
 
-	html("</td>");
-	if (new_line_no > 0)
-		htmlf("<td class='lineno'>%d</td><td class='%s'>",
-		      new_line_no, class);
-	else if (new_line)
+	html("</td>\n");
+	if (new_line_no > 0) {
+		struct diff_filespec *new_file = cgit_get_current_new_file();
+		char *lineno_str = fmt("n%d", new_line_no);
+		char *id_str = fmt("%s#%s", is_null_sha1(new_file->sha1)?"HEAD":sha1_to_hex(new_rev_sha1), lineno_str);
+		html("<td class='lineno'><a class='no' href='");
+		html(cgit_fileurl(ctx.repo->url, "tree", new_file->path, id_str));
+		htmlf("' id='%s' name='%s'>%s</a>", lineno_str, lineno_str, lineno_str + 1);
+		html("</td>");
+		htmlf("<td class='%s'>", class);
+	} else if (new_line)
 		htmlf("<td class='lineno'></td><td class='%s'>", class);
 	else
 		htmlf("<td class='lineno'></td><td class='%s_dark'>", class);
 	if (new_line) {
 		if (lcs)
 			print_part_with_lcs("add", new_line, lcs);
 		else
 			html_txt(new_line);
 	}
 
 	html("</td></tr>");
 	if (lcs)