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/* shared.c: global vars + some callback functions
 *
 * Copyright (C) 2006 Lars Hjemli
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"

char *cgit_root         = "/usr/src/git";
char *cgit_root_title   = "Git repository browser";
char *cgit_css          = "/cgit.css";
char *cgit_logo         = "/git-logo.png";
char *cgit_logo_link    = "http://www.kernel.org/pub/software/scm/git/docs/";
char *cgit_virtual_root = NULL;

char *cgit_cache_root   = "/var/cache/cgit";

int cgit_nocache               =  0;
int cgit_max_lock_attempts     =  5;
int cgit_cache_root_ttl        =  5;
int cgit_cache_repo_ttl        =  5;
int cgit_cache_dynamic_ttl     =  5;
int cgit_cache_static_ttl      = -1;
int cgit_cache_max_create_time =  5;

char *cgit_repo_name    = NULL;
char *cgit_repo_desc    = NULL;
char *cgit_repo_owner   = NULL;

int cgit_query_has_symref = 0;
int cgit_query_has_sha1   = 0;

char *cgit_querystring  = NULL;
char *cgit_query_repo   = NULL;
char *cgit_query_page   = NULL;
char *cgit_query_head   = NULL;
char *cgit_query_sha1   = NULL;
char *cgit_query_sha2   = NULL;
int   cgit_query_ofs    = 0;

int htmlfd = 0;

void cgit_global_config_cb(const char *name, const char *value)
{
	if (!strcmp(name, "root"))
		cgit_root = xstrdup(value);
	else if (!strcmp(name, "root-title"))
		cgit_root_title = xstrdup(value);
	else if (!strcmp(name, "css"))
		cgit_css = xstrdup(value);
	else if (!strcmp(name, pre { line-height: 125%; }
td.linenos .normal { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
span.linenos { color: inherit; background-color: transparent; padding-left: 5px; padding-right: 5px; }
td.linenos .special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
span.linenos.special { color: #000000; background-color: #ffffc0; padding-left: 5px; padding-right: 5px; }
.highlight .hll { background-color: #ffffcc }
.highlight .c { color: #888888 } /* Comment */
.highlight .err { color: #a61717; background-color: #e3d2d2 } /* Error */
.highlight .k { color: #008800; font-weight: bold } /* Keyword */
.highlight .ch { color: #888888 } /* Comment.Hashbang */
.highlight .cm { color: #888888 } /* Comment.Multiline */
.highlight .cp { color: #cc0000; font-weight: bold } /* Comment.Preproc */
.highlight .cpf { color: #888888 } /* Comment.PreprocFile */
.highlight .c1 { color: #888888 } /* Comment.Single */
.highlight .cs { color: #cc0000; font-weight: bold; background-color: #fff0f0 } /* Comment.Special */
.highlight .gd { color: #000000; background-color: #ffdddd } /* Generic.Deleted */
.highlight .ge { font-style: italic } /* Generic.Emph */
.highlight .gr { color: #aa0000 } /* Generic.Error */
.highlight .gh { color: #333333 } /* Generic.Heading */
.highlight .gi { color: #000000; background-color: #ddffdd } /* Generic.Inserted */
.highlight .go { color: #888888 } /* Generic.Output */
.highlight .gp { color: #555555 } /* Generic.Prompt */
.highlight .gs { font-weight: bold } /* Generic.Strong */
.highlight .gu { color: #666666 } /* Generic.Subheading */
.highlight .gt { color: #aa0000 } /* Generic.Traceback */
.highlight .kc { color: #008800; font-weight: bold } /* Keyword.Constant */
.highlight .kd { color: #008800; font-weight: bold } /* Keyword.Declaration */
.highlight .kn { color: #008800; font-weight: bold } /* Keyword.Namespace */
.highlight .kp { color: #008800 } /* Keyword.Pseudo */
.highlight .kr { color: #008800; font-weight: bold } /* Keyword.Reserved */
.highlight .kt { color: #888888; font-weight: bold } /* Keyword.Type */
.highlight .m { color: #0000DD; font-weight: bold } /* Literal.Number */
.highlight .s { color: #dd2200; background-color: #fff0f0 } /* Literal.String */
.highlight .na { color: #336699 } /* Name.Attribute */
.highlight .nb { color: #003388 } /* Name.Builtin */
.highlight .nc { color: #bb0066; font-weight: bold } /* Name.Class */
.highlight .no { color: #003366; font-weight: bold } /* Name.Constant */
.highlight .nd { color: #555555 } /* Name.Decorator */
.highlight .ne { color: #bb0066; font-weight: bold } /* Name.Exception */
.highlight .nf { color: #0066bb; font-weight: bold } /* Name.Function */
.highlight .nl { color: #336699; font-style: italic } /* Name.Label */
.highlight .nn { color: #bb0066; font-weight: bold } /* Name.Namespace */
.highlight .py { color: #336699; font-weight: bold } /* Name.Property */
.highlight .nt { color: #bb0066; font-weight: bold } /* Name.Tag */
.highlight .nv { color: #336699 } /* Name.Variable */
.highlight .ow { color: #008800 } /* Operator.Word */
.highlight .w { color: #bbbbbb } /* Text.Whitespace */
.highlight .mb { color: #0000DD; font-weight: bold } /* Literal.Number.Bin */
.highlight .mf { color: #0000DD; font-weight: bold } /* Literal.Number.Float */
.highlight .mh { color: #0000DD; font-weight: bold } /* Literal.Number.Hex */
.highlight .mi { color: #0000DD; font-weight: bold } /* Literal.Number.Integer */
.highlight .mo { color: #0000DD; font-weight: bold } /* Literal.Number.Oct */
.highlight .sa { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Affix */
.highlight .sb { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Backtick */
.highlight .sc { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Char */
.highlight .dl { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Delimiter */
.highlight .sd { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Doc */
.highlight .s2 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Double */
.highlight .se { color: #0044dd; background-color: #fff0f0 } /* Literal.String.Escape */
.highlight .sh { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Heredoc */
.highlight .si { color: #3333bb; background-color: #fff0f0 } /* Literal.String.Interpol */
.highlight .sx { color: #22bb22; background-color: #f0fff0 } /* Literal.String.Other */
.highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */
.highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */
.highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */
.highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */
.highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */
.highlight .vc { color: #336699 } /* Name.Variable.Class */
.highlight .vg { color: #dd7700 } /* Name.Variable.Global */
.highlight .vi { color: #3333bb } /* Name.Variable.Instance */
.highlight .vm { color: #336699 } /* Name.Variable.Magic */
.highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/* ui-log.c: functions for log output
 *
 * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>
 *
 * Licensed under GNU General Public License v2
 *   (see COPYING for full license text)
 */

#include "cgit.h"
#include "ui-log.h"
#include "html.h"
#include "ui-shared.h"
#include "argv-array.h"

static int files, add_lines, rem_lines, lines_counted;

/*
 * The list of available column colors in the commit graph.
 */
static const char *column_colors_html[] = {
	"<span class='column1'>",
	"<span class='column2'>",
	"<span class='column3'>",
	"<span class='column4'>",
	"<span class='column5'>",
	"<span class='column6'>",
	"</span>",
};

#define COLUMN_COLORS_HTML_MAX (ARRAY_SIZE(column_colors_html) - 1)

static void count_lines(char *line, int size)
{
	if (size <= 0)
		return;

	if (line[0] == '+')
		add_lines++;

	else if (line[0] == '-')
		rem_lines++;
}

static void inspect_files(struct diff_filepair *pair)
{
	unsigned long old_size = 0;
	unsigned long new_size = 0;
	int binary = 0;

	files++;
	if (ctx.repo->enable_log_linecount)
		cgit_diff_files(&pair->one->oid, &pair->two->oid, &old_size,
				&new_size, &binary, 0, ctx.qry.ignorews,
				count_lines);
}

void show_commit_decorations(struct commit *commit)
{
	const struct name_decoration *deco;
	static char buf[1024];

	buf[sizeof(buf) - 1] = 0;
	deco = get_name_decoration(&commit->object);
	if (!deco)
		return;
	html("<span class='decoration'>"<
generated by cgit v1.2.3-54-g00ecf (git 2.39.0) at 2025-04-08 19:48:18 +0000
ss="w"> object_id peeled; int is_annotated = 0; strncpy(buf, prettify_refname(deco->name), sizeof(buf) - 1); switch(deco->type) { case DECORATION_NONE: /* If the git-core doesn't recognize it, * don't display anything. */ break; case DECORATION_REF_LOCAL: cgit_log_link(buf, NULL, "branch-deco", buf, NULL, ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg, 0); break; case DECORATION_REF_TAG: if (!peel_ref(deco->name, &peeled)) is_annotated = !oidcmp(&commit->object.oid, &peeled); cgit_tag_link(buf, NULL, is_annotated ? "tag-annotated-deco" : "tag-deco", buf); break; case DECORATION_REF_REMOTE: if (!ctx.repo->enable_remote_branches) break; cgit_log_link(buf, NULL, "remote-deco", NULL, oid_to_hex(&commit->object.oid), ctx.qry.vpath, 0, NULL, NULL, ctx.qry.showmsg, 0); break; default: cgit_commit_link(buf, NULL, "deco", ctx.qry.head, oid_to_hex(&commit->object.oid), ctx.qry.vpath); break; } deco = deco->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; struct diff_flags 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; /* If we can't parse the commit, let print_commit() report an error. */ if (parse_commit(parent)) return 1; files = 0; add_lines = 0; rem_lines = 0; revs->diffopt.flags.recursive = 1; diff_tree_oid(&parent->tree->object.oid, &commit->tree->object.oid, "", &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; int columns = revs->graph ? 4 : 3; struct strbuf graphbuf = STRBUF_INIT; struct strbuf msgbuf = STRBUF_INIT; if (ctx.repo->enable_log_filecount) columns++; if (ctx.repo->enable_log_linecount) columns++; if (revs->graph) { /* Advance graph until current commit */ while (!graph_next_line(revs->graph, &graphbuf)) { /* Print graph segment in otherwise empty table row */ html("<tr class='nohover'><td class='commitgraph'>"); html(graphbuf.buf); htmlf("</td><td colspan='%d' /></tr>\n", columns); strbuf_setlen(&graphbuf, 0); } /* Current commit's graph segment is now ready in graphbuf */ } info = cgit_parse_commit(commit); htmlf("<tr%s>", ctx.qry.showmsg ? " class='logheader'" : ""); if (revs->graph) { /* Print graph segment for current commit */ html("<td class='commitgraph'>"); html(graphbuf.buf); html("</td>"); strbuf_setlen(&graphbuf, 0); } else { html("<td>"); cgit_print_age(info->committer_date, info->committer_tz, TM_WEEK * 2); html("</td>"); } htmlf("<td%s>", ctx.qry.showmsg ? " class='logsubject'" : ""); if (ctx.qry.showmsg) { /* line-wrap long commit subjects instead of truncating them */ size_t subject_len = strlen(info->subject); if (subject_len > ctx.cfg.max_msg_len && ctx.cfg.max_msg_len >= 15) { /* symbol for signaling line-wrap (in PAGE_ENCODING) */ const char wrap_symbol[] = { ' ', 0xE2, 0x86, 0xB5, 0 }; int i = ctx.cfg.max_msg_len - strlen(wrap_symbol); /* Rewind i to preceding space character */ while (i > 0 && !isspace(info->subject[i])) --i; if (!i) /* Oops, zero spaces. Reset i */ i = ctx.cfg.max_msg_len - strlen(wrap_symbol); /* add remainder starting at i to msgbuf */ strbuf_add(&msgbuf, info->subject + i, subject_len - i); strbuf_trim(&msgbuf); strbuf_add(&msgbuf, "\n\n", 2); /* Place wrap_symbol at position i in info->subject */ strcpy(info->subject + i, wrap_symbol); } } cgit_commit_link(info->subject, NULL, NULL, ctx.qry.head, oid_to_hex(&commit->object.oid), ctx.qry.vpath); show_commit_decorations(commit); html("</td><td>"); cgit_open_filter(ctx.repo->email_filter, info->author_email, "log"); html_txt(info->author); cgit_close_filter(ctx.repo->email_filter); if (revs->graph) { html("</td><td>"); cgit_print_age(info->committer_date, info->committer_tz, TM_WEEK * 2); } if (!lines_counted && (ctx.repo->enable_log_filecount || ctx.repo->enable_log_linecount)) { files = 0; add_lines = 0; rem_lines = 0; cgit_diff_commit(commit, inspect_files, ctx.qry.vpath); } if (ctx.repo->enable_log_filecount) htmlf("</td><td>%d", files); if (ctx.repo->enable_log_linecount) htmlf("</td><td><span class='deletions'>-%d</span>/" "<span class='insertions'>+%d</span>", rem_lines, add_lines); html("</td></tr>\n"); if ((revs->graph && !graph_is_commit_finished(revs->graph)) || ctx.qry.showmsg) { /* Print a second table row */ html("<tr class='nohover-highlight'>"); if (ctx.qry.showmsg) { /* Concatenate commit message + notes in msgbuf */ if (info->msg && *(info->msg)) { strbuf_addstr(&msgbuf, info->msg); strbuf_addch(&msgbuf, '\n'); } format_display_notes(&commit->object.oid, &msgbuf, PAGE_ENCODING, 0); strbuf_addch(&msgbuf, '\n'); strbuf_ltrim(&msgbuf); } if (revs->graph) { int lines = 0; /* Calculate graph padding */ if (ctx.qry.showmsg) { /* Count #lines in commit message + notes */ const char *p = msgbuf.buf; lines = 1; while ((p = strchr(p, '\n'))) { p++; lines++; } } /* Print graph padding */ html("<td class='commitgraph'>"); while (lines > 0 || !graph_is_commit_finished(revs->graph)) { if (graphbuf.len) html("\n"); strbuf_setlen(&graphbuf, 0); graph_next_line(revs->graph, &graphbuf); html(graphbuf.buf); lines--; } html("</td>\n"); } else html("<td/>"); /* Empty 'Age' column */ /* Print msgbuf into remainder of table row */ htmlf("<td colspan='%d'%s>\n", columns - (revs->graph ? 1 : 0), ctx.qry.showmsg ? " class='logmsg'" : ""); html_txt(msgbuf.buf); html("</td></tr>\n"); } strbuf_release(&msgbuf); strbuf_release(&graphbuf); cgit_free_commitinfo(info); } static const char *disambiguate_ref(const char *ref, int *must_free_result) { struct object_id oid; struct strbuf longref = STRBUF_INIT; strbuf_addf(&longref, "refs/heads/%s", ref); if (get_oid(longref.buf, &oid) == 0) { *must_free_result = 1; return strbuf_detach(&longref, NULL); } *must_free_result = 0; strbuf_release(&longref); return ref; } static char *next_token(char **src) { char *result; if (!src || !*src) return NULL; while (isspace(**src)) (*src)++; if (!**src) return NULL; result = *src; while (**src) { if (isspace(**src)) { **src = '\0'; (*src)++; break; } (*src)++; } return result; } void cgit_print_log(const char *tip, int ofs, int cnt, char *grep, char *pattern, char *path, int pager, int commit_graph, int commit_sort) { struct rev_info rev; struct commit *commit; struct argv_array rev_argv = ARGV_ARRAY_INIT; int i, columns = commit_graph ? 4 : 3; int must_free_tip = 0; /* rev_argv.argv[0] will be ignored by setup_revisions */ argv_array_push(&rev_argv, "log_rev_setup"); if (!tip) tip = ctx.qry.head; tip = disambiguate_ref(tip, &must_free_tip); argv_array_push(&rev_argv, tip); if (grep && pattern && *pattern) { pattern = xstrdup(pattern); if (!strcmp(grep, "grep") || !strcmp(grep, "author") || !strcmp(grep, "committer")) { argv_array_pushf(&rev_argv, "--%s=%s", grep, pattern); } else if (!strcmp(grep, "range")) { char *arg; /* Split the pattern at whitespace and add each token * as a revision expression. Do not accept other * rev-list options. Also, replace the previously * pushed tip (it's no longer relevant). */ argv_array_pop(&rev_argv); while ((arg = next_token(&pattern))) { if (*arg == '-') { fprintf(stderr, "Bad range expr: %s\n", arg); break; } argv_array_push(&rev_argv, arg); } } } 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, COLUMN_COLORS_HTML_MAX); } if (commit_sort == 1) argv_array_push(&rev_argv, "--date-order"); 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); init_revisions(&rev, NULL); rev.abbrev = DEFAULT_ABBREV; rev.commit_format = CMIT_FMT_DEFAULT; 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(NULL, DECORATE_FULL_REFS); rev.show_decorations = 1; rev.grep_filter.ignore_case = 1; 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); if (pager) { cgit_print_layout_start(); html("<table class='list nowrap'>"); } html("<tr class='nohover'>"); if (commit_graph) html("<th></th>"); else html("<th class='left'>Age</th>"); html("<th class='left'>Commit message"); if (pager) { html(" ("); 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.follow); html(")"); } html("</th><th class='left'>Author</th>"); if (rev.graph) html("<th class='left'>Age</th>"); if (ctx.repo->enable_log_filecount) { html("<th class='left'>Files</th>"); columns++; } if (ctx.repo->enable_log_linecount) { html("<th class='left'>Lines</th>"); columns++; } html("</tr>\n"); if (ofs<0) ofs = 0; for (i = 0; i < ofs && (commit = get_revision(&rev)) != NULL; /* nop */) { 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; /* nop */) { /* * 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; } if (pager) { html("</table><ul class='pager'>"); if (ofs > 0) { html("<li>"); 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.follow); html("</li>"); } if ((commit = get_revision(&rev)) != NULL) { html("<li>"); 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.follow); html("</li>"); } html("</ul>"); cgit_print_layout_end(); } 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.follow); html("</td></tr>\n"); } /* If we allocated tip then it is safe to cast away const. */ if (must_free_tip) free((char*) tip); }