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-rw-r--r--cgit.c4
-rw-r--r--cgit.h2
-rw-r--r--cgitrc.5.txt4
-rw-r--r--ui-diff.c35
-rw-r--r--ui-log.c131
-rw-r--r--ui-refs.c2
-rw-r--r--ui-repolist.c2
-rw-r--r--ui-shared.c28
-rw-r--r--ui-shared.h2
-rw-r--r--ui-tree.c2
10 files changed, 194 insertions, 18 deletions
diff --git a/cgit.c b/cgit.c
index baad1c8..d84b4be 100644
--- a/cgit.c
+++ b/cgit.c
@@ -152,6 +152,8 @@ static void config_cb(const char *name, const char *value)
ctx.cfg.snapshots = cgit_parse_snapshots_mask(value);
else if (!strcmp(name, "enable-filter-overrides"))
ctx.cfg.enable_filter_overrides = atoi(value);
+ else if (!strcmp(name, "enable-follow-links"))
+ ctx.cfg.enable_follow_links = atoi(value);
else if (!strcmp(name, "enable-http-clone"))
ctx.cfg.enable_http_clone = atoi(value);
else if (!strcmp(name, "enable-index-links"))
@@ -333,6 +335,8 @@ static void querystring_cb(const char *name, const char *value)
ctx.qry.context = atoi(value);
} else if (!strcmp(name, "ignorews")) {
ctx.qry.ignorews = atoi(value);
+ } else if (!strcmp(name, "follow")) {
+ ctx.qry.follow = atoi(value);
}
}
diff --git a/cgit.h b/cgit.h
index b2253d2..3120562 100644
--- a/cgit.h
+++ b/cgit.h
@@ -179,6 +179,7 @@ struct cgit_query {
int show_all;
int context;
int ignorews;
+ int follow;
char *vpath;
};
@@ -221,6 +222,7 @@ struct cgit_config {
int case_sensitive_sort;
int embedded;
int enable_filter_overrides;
+ int enable_follow_links;
int enable_http_clone;
int enable_index_links;
int enable_index_owner;
diff --git a/cgitrc.5.txt b/cgitrc.5.txt
index e21ece9..759f353 100644
--- a/cgitrc.5.txt
+++ b/cgitrc.5.txt
@@ -150,6 +150,10 @@ enable-filter-overrides::
Flag which, when set to "1", allows all filter settings to be
overridden in repository-specific cgitrc files. Default value: none.
+enable-follow-links::
+ Flag which, when set to "1", allows users to follow a file in the log
+ view. Default value: "0".
+
enable-http-clone::
If set to "1", cgit will act as an dumb HTTP endpoint for git clones.
You can add "http://$HTTP_HOST$SCRIPT_NAME/$CGIT_REPO_URL" to clone-url
diff --git a/ui-diff.c b/ui-diff.c
index 1cf2ce0..caebd5d 100644
--- a/ui-diff.c
+++ b/ui-diff.c
@@ -36,6 +36,7 @@ static struct fileinfo {
static int use_ssdiff = 0;
static struct diff_filepair *current_filepair;
+static const char *current_prefix;
struct diff_filespec *cgit_get_current_old_file(void)
{
@@ -132,11 +133,30 @@ static void count_diff_lines(char *line, int len)
}
}
+static int show_filepair(struct diff_filepair *pair)
+{
+ /* Always show if we have no limiting prefix. */
+ if (!current_prefix)
+ return 1;
+
+ /* Show if either path in the pair begins with the prefix. */
+ if (starts_with(pair->one->path, current_prefix) ||
+ starts_with(pair->two->path, current_prefix))
+ return 1;
+
+ /* Otherwise we don't want to show this filepair. */
+ return 0;
+}
+
static void inspect_filepair(struct diff_filepair *pair)
{
int binary = 0;
unsigned long old_size = 0;
unsigned long new_size = 0;
+
+ if (!show_filepair(pair))
+ return;
+
files++;
lines_added = 0;
lines_removed = 0;
@@ -279,6 +299,9 @@ static void filepair_cb(struct diff_filepair *pair)
int binary = 0;
linediff_fn print_line_fn = print_line;
+ if (!show_filepair(pair))
+ return;
+
current_filepair = pair;
if (use_ssdiff) {
cgit_ssdiff_header_begin();
@@ -365,6 +388,18 @@ void cgit_print_diff(const char *new_rev, const char *old_rev,
const unsigned char *old_tree_sha1, *new_tree_sha1;
diff_type difftype;
+ /*
+ * If "follow" is set then the diff machinery needs to examine the
+ * entire commit to detect renames so we must limit the paths in our
+ * own callbacks and not pass the prefix to the diff machinery.
+ */
+ if (ctx.qry.follow && ctx.cfg.enable_follow_links) {
+ current_prefix = prefix;
+ prefix = "";
+ } else {
+ current_prefix = NULL;
+ }
+
if (!new_rev)
new_rev = ctx.qry.head;
if (get_sha1(new_rev, new_rev_sha1)) {
diff --git a/ui-log.c b/ui-log.c
index 8028b27..ff832ce 100644
--- a/ui-log.c
+++ b/ui-log.c
@@ -12,7 +12,7 @@
#include "ui-shared.h"
#include "argv-array.h"
-static int files, add_lines, rem_lines;
+static int files, add_lines, rem_lines, lines_counted;
/*
* The list of available column colors in the commit graph.
@@ -67,7 +67,7 @@ void show_commit_decorations(struct commit *commit)
strncpy(buf, deco->name + 11, sizeof(buf) - 1);
cgit_log_link(buf, NULL, "branch-deco", buf, NULL,
ctx.qry.vpath, 0, NULL, NULL,
- ctx.qry.showmsg);
+ ctx.qry.showmsg, 0);
}
else if (starts_with(deco->name, "tag: refs/tags/")) {
strncpy(buf, deco->name + 15, sizeof(buf) - 1);
@@ -84,7 +84,7 @@ void show_commit_decorations(struct commit *commit)
cgit_log_link(buf, NULL, "remote-deco", NULL,
sha1_to_hex(commit->object.sha1),
ctx.qry.vpath, 0, NULL, NULL,
- ctx.qry.showmsg);
+ ctx.qry.showmsg, 0);
}
else {
strncpy(buf, deco->name, sizeof(buf) - 1);
@@ -98,6 +98,74 @@ next:
html("</span>");
}
+static void handle_rename(struct diff_filepair *pair)
+{
+ /*
+ * After we have seen a rename, we generate links to the previous
+ * name of the file so that commit & diff views get fed the path
+ * that is correct for the commit they are showing, avoiding the
+ * need to walk the entire history leading back to every commit we
+ * show in order detect renames.
+ */
+ if (0 != strcmp(ctx.qry.vpath, pair->two->path)) {
+ free(ctx.qry.vpath);
+ ctx.qry.vpath = xstrdup(pair->two->path);
+ }
+ inspect_files(pair);
+}
+
+static int show_commit(struct commit *commit, struct rev_info *revs)
+{
+ struct commit_list *parents = commit->parents;
+ struct commit *parent;
+ int found = 0, saved_fmt;
+ unsigned saved_flags = revs->diffopt.flags;
+
+
+ /* Always show if we're not in "follow" mode with a single file. */
+ if (!ctx.qry.follow)
+ return 1;
+
+ /*
+ * In "follow" mode, we don't show merges. This is consistent with
+ * "git log --follow -- <file>".
+ */
+ if (parents && parents->next)
+ return 0;
+
+ /*
+ * If this is the root commit, do what rev_info tells us.
+ */
+ if (!parents)
+ return revs->show_root_diff;
+
+ /* When we get here we have precisely one parent. */
+ parent = parents->item;
+ parse_commit(parent);
+
+ files = 0;
+ add_lines = 0;
+ rem_lines = 0;
+
+ DIFF_OPT_SET(&revs->diffopt, RECURSIVE);
+ diff_tree_sha1(parent->tree->object.sha1,
+ commit->tree->object.sha1,
+ "", &revs->diffopt);
+ diffcore_std(&revs->diffopt);
+
+ found = !diff_queue_is_empty();
+ saved_fmt = revs->diffopt.output_format;
+ revs->diffopt.output_format = DIFF_FORMAT_CALLBACK;
+ revs->diffopt.format_callback = cgit_diff_tree_cb;
+ revs->diffopt.format_callback_data = handle_rename;
+ diff_flush(&revs->diffopt);
+ revs->diffopt.output_format = saved_fmt;
+ revs->diffopt.flags = saved_flags;
+
+ lines_counted = 1;
+ return found;
+}
+
static void print_commit(struct commit *commit, struct rev_info *revs)
{
struct commitinfo *info;
@@ -177,7 +245,8 @@ static void print_commit(struct commit *commit, struct rev_info *revs)
cgit_print_age(commit->date, TM_WEEK * 2, FMT_SHORTDATE);
}
- if (ctx.repo->enable_log_filecount || ctx.repo->enable_log_linecount) {
+ if (!lines_counted && (ctx.repo->enable_log_filecount ||
+ ctx.repo->enable_log_linecount)) {
files = 0;
add_lines = 0;
rem_lines = 0;
@@ -325,7 +394,17 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
}
}
}
- if (commit_graph) {
+
+ if (!path || !ctx.cfg.enable_follow_links) {
+ /*
+ * If we don't have a path, "follow" is a no-op so make sure
+ * the variable is set to false to avoid needing to check
+ * both this and whether we have a path everywhere.
+ */
+ ctx.qry.follow = 0;
+ }
+
+ if (commit_graph && !ctx.qry.follow) {
argv_array_push(&rev_argv, "--graph");
argv_array_push(&rev_argv, "--color");
graph_set_column_colors(column_colors_html,
@@ -337,6 +416,8 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
else if (commit_sort == 2)
argv_array_push(&rev_argv, "--topo-order");
+ if (path && ctx.qry.follow)
+ argv_array_push(&rev_argv, "--follow");
argv_array_push(&rev_argv, "--");
if (path)
argv_array_push(&rev_argv, path);
@@ -347,10 +428,17 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
rev.verbose_header = 1;
rev.show_root_diff = 0;
rev.ignore_missing = 1;
+ rev.simplify_history = 1;
setup_revisions(rev_argv.argc, rev_argv.argv, &rev, NULL);
load_ref_decorations(DECORATE_FULL_REFS);
rev.show_decorations = 1;
rev.grep_filter.regflags |= REG_ICASE;
+
+ rev.diffopt.detect_rename = 1;
+ rev.diffopt.rename_limit = ctx.cfg.renamelimit;
+ if (ctx.qry.ignorews)
+ DIFF_XDL_SET(&rev.diffopt, IGNORE_WHITESPACE);
+
compile_grep_patterns(&rev.grep_filter);
prepare_revision_walk(&rev);
@@ -368,11 +456,12 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
cgit_log_link(ctx.qry.showmsg ? "Collapse" : "Expand", NULL,
NULL, ctx.qry.head, ctx.qry.sha1,
ctx.qry.vpath, ctx.qry.ofs, ctx.qry.grep,
- ctx.qry.search, ctx.qry.showmsg ? 0 : 1);
+ ctx.qry.search, ctx.qry.showmsg ? 0 : 1,
+ ctx.qry.follow);
html(")");
}
html("</th><th class='left'>Author</th>");
- if (commit_graph)
+ if (rev.graph)
html("<th class='left'>Age</th>");
if (ctx.repo->enable_log_filecount) {
html("<th class='left'>Files</th>");
@@ -388,13 +477,30 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
ofs = 0;
for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; i++) {
+ if (show_commit(commit, &rev))
+ i++;
free_commit_buffer(commit);
free_commit_list(commit->parents);
commit->parents = NULL;
}
for (i = 0; i < cnt && (commit = get_revision(&rev)) != NULL; i++) {
- print_commit(commit, &rev);
+ /*
+ * In "follow" mode, we must count the files and lines the
+ * first time we invoke diff on a given commit, and we need
+ * to do that to see if the commit touches the path we care
+ * about, so we do it in show_commit. Hence we must clear
+ * lines_counted here.
+ *
+ * This has the side effect of avoiding running diff twice
+ * when we are both following renames and showing file
+ * and/or line counts.
+ */
+ lines_counted = 0;
+ if (show_commit(commit, &rev)) {
+ i++;
+ print_commit(commit, &rev);
+ }
free_commit_buffer(commit);
free_commit_list(commit->parents);
commit->parents = NULL;
@@ -406,7 +512,8 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
cgit_log_link("[prev]", NULL, NULL, ctx.qry.head,
ctx.qry.sha1, ctx.qry.vpath,
ofs - cnt, ctx.qry.grep,
- ctx.qry.search, ctx.qry.showmsg);
+ ctx.qry.search, ctx.qry.showmsg,
+ ctx.qry.follow);
html("</li>");
}
if ((commit = get_revision(&rev)) != NULL) {
@@ -414,14 +521,16 @@ void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern
cgit_log_link("[next]", NULL, NULL, ctx.qry.head,
ctx.qry.sha1, ctx.qry.vpath,
ofs + cnt, ctx.qry.grep,
- ctx.qry.search, ctx.qry.showmsg);
+ ctx.qry.search, ctx.qry.showmsg,
+ ctx.qry.follow);
html("</li>");
}
html("</ul>");
} else if ((commit = get_revision(&rev)) != NULL) {
htmlf("<tr class='nohover'><td colspan='%d'>", columns);
cgit_log_link("[...]", NULL, NULL, ctx.qry.head, NULL,
- ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg);
+ ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg,
+ ctx.qry.follow);
html("</td></tr>\n");
}
diff --git a/ui-refs.c b/ui-refs.c
index d3d71dd..73a187b 100644
--- a/ui-refs.c
+++ b/ui-refs.c
@@ -63,7 +63,7 @@ static int print_branch(struct refinfo *ref)
return 1;
html("<tr><td>");
cgit_log_link(name, NULL, NULL, name, NULL, NULL, 0, NULL, NULL,
- ctx.qry.showmsg);
+ ctx.qry.showmsg, 0);
html("</td><td>");
if (ref->object->type == OBJ_COMMIT) {
diff --git a/ui-repolist.c b/ui-repolist.c
index 2453a7f..edefc4c 100644
--- a/ui-repolist.c
+++ b/ui-repolist.c
@@ -330,7 +330,7 @@ void cgit_print_repolist(void)
html("<td>");
cgit_summary_link("summary", NULL, "button", NULL);
cgit_log_link("log", NULL, "button", NULL, NULL, NULL,
- 0, NULL, NULL, ctx.qry.showmsg);
+ 0, NULL, NULL, ctx.qry.showmsg, 0);
cgit_tree_link("tree", NULL, "button", NULL, NULL, NULL);
html("</td>");
}
diff --git a/ui-shared.c b/ui-shared.c
index 4f84b7c..6be0c2e 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -303,7 +303,8 @@ void cgit_plain_link(const char *name, const char *title, const char *class,
void cgit_log_link(const char *name, const char *title, const char *class,
const char *head, const char *rev, const char *path,
- int ofs, const char *grep, const char *pattern, int showmsg)
+ int ofs, const char *grep, const char *pattern, int showmsg,
+ int follow)
{
char *delim;
@@ -332,6 +333,11 @@ void cgit_log_link(const char *name, const char *title, const char *class,
if (showmsg) {
html(delim);
html("showmsg=1");
+ delim = "&amp;";
+ }
+ if (follow) {
+ html(delim);
+ html("follow=1");
}
html("'>");
html_txt(name);
@@ -373,6 +379,10 @@ void cgit_commit_link(char *name, const char *title, const char *class,
html("ignorews=1");
delim = "&amp;";
}
+ if (ctx.qry.follow) {
+ html(delim);
+ html("follow=1");
+ }
html("'>");
if (name[0] != '\0')
html_txt(name);
@@ -429,6 +439,10 @@ void cgit_diff_link(const char *name, const char *title, const char *class,
html("ignorews=1");
delim = "&amp;";
}
+ if (ctx.qry.follow) {
+ html(delim);
+ html("follow=1");
+ }
html("'>");
html_txt(name);
html("</a>");
@@ -469,7 +483,7 @@ static void cgit_self_link(char *name, const char *title, const char *class)
ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
ctx.qry.path, ctx.qry.ofs,
ctx.qry.grep, ctx.qry.search,
- ctx.qry.showmsg);
+ ctx.qry.showmsg, ctx.qry.follow);
else if (!strcmp(ctx.qry.page, "commit"))
cgit_commit_link(name, title, class, ctx.qry.head,
ctx.qry.has_sha1 ? ctx.qry.sha1 : NULL,
@@ -945,7 +959,7 @@ void cgit_print_pageheader(void)
ctx.qry.sha1, NULL);
cgit_log_link("log", NULL, hc("log"), ctx.qry.head,
NULL, ctx.qry.vpath, 0, NULL, NULL,
- ctx.qry.showmsg);
+ ctx.qry.showmsg, ctx.qry.follow);
cgit_tree_link("tree", NULL, hc("tree"), ctx.qry.head,
ctx.qry.sha1, ctx.qry.vpath);
cgit_commit_link("commit", NULL, hc("commit"),
@@ -993,6 +1007,14 @@ void cgit_print_pageheader(void)
html("<div class='path'>");
html("path: ");
cgit_print_path_crumbs(ctx.qry.vpath);
+ if (ctx.cfg.enable_follow_links && !strcmp(ctx.qry.page, "log")) {
+ html(" (");
+ ctx.qry.follow = !ctx.qry.follow;
+ cgit_self_link(ctx.qry.follow ? "follow" : "unfollow",
+ NULL, NULL);
+ ctx.qry.follow = !ctx.qry.follow;
+ html(")");
+ }
html("</div>");
}
html("<div class='content'>");
diff --git a/ui-shared.h b/ui-shared.h
index 43d0fa6..788b1bc 100644
--- a/ui-shared.h
+++ b/ui-shared.h
@@ -31,7 +31,7 @@ extern void cgit_plain_link(const char *name, const char *title,
extern void cgit_log_link(const char *name, const char *title,
const char *class, const char *head, const char *rev,
const char *path, int ofs, const char *grep,
- const char *pattern, int showmsg);
+ const char *pattern, int showmsg, int follow);
extern void cgit_commit_link(char *name, const char *title,
const char *class, const char *head,
const char *rev, const char *path);
diff --git a/ui-tree.c b/ui-tree.c
index bbc468e..c8d24f6 100644
--- a/ui-tree.c
+++ b/ui-tree.c
@@ -166,7 +166,7 @@ static int ls_item(const unsigned char *sha1, struct strbuf *base,
html("<td>");
cgit_log_link("log", NULL, "button", ctx.qry.head,
walk_tree_ctx->curr_rev, fullpath.buf, 0, NULL, NULL,
- ctx.qry.showmsg);
+ ctx.qry.showmsg, 0);
if (ctx.repo->max_stats)
cgit_stats_link("stats", NULL, "button", ctx.qry.head,
fullpath.buf);