Merge branch 'lh/readme'

[cgit.git] / shared.c

diff --git a/shared.c b/shared.c
index d7b2d5a9efe777acc8140ae9401b9c9d17a5fd79..72ac140d605cfe9b0144d757e041e9dfbb07e5ee 100644 (file)
--- a/shared.c
+++ b/shared.c
@@ -10,7 +10,6 @@
 
 struct cgit_repolist cgit_repolist;
 struct cgit_context ctx;
-int cgit_cmd;
 
 int chk_zero(int result, char *msg)
 {
@@ -59,9 +58,11 @@ struct cgit_repo *cgit_add_repo(const char *url)
        ret->snapshots = ctx.cfg.snapshots;
        ret->enable_log_filecount = ctx.cfg.enable_log_filecount;
        ret->enable_log_linecount = ctx.cfg.enable_log_linecount;
+       ret->enable_remote_branches = ctx.cfg.enable_remote_branches;
+       ret->enable_subject_links = ctx.cfg.enable_subject_links;
        ret->max_stats = ctx.cfg.max_stats;
        ret->module_link = ctx.cfg.module_link;
-       ret->readme = NULL;
+       ret->readme = ctx.cfg.readme;
        ret->mtime = -1;
        ret->about_filter = ctx.cfg.about_filter;
        ret->commit_filter = ctx.cfg.commit_filter;
@@ -262,7 +263,8 @@ int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
 
 int cgit_diff_files(const unsigned char *old_sha1,
                    const unsigned char *new_sha1, unsigned long *old_size,
-                   unsigned long *new_size, int *binary, linediff_fn fn)
+                   unsigned long *new_size, int *binary, int context,
+                   int ignorews, linediff_fn fn)
 {
        mmfile_t file1, file2;
        xpparam_t diff_params;
@@ -278,6 +280,10 @@ int cgit_diff_files(const unsigned char *old_sha1,
        if ((file1.ptr && buffer_is_binary(file1.ptr, file1.size)) ||
            (file2.ptr && buffer_is_binary(file2.ptr, file2.size))) {
                *binary = 1;
+               if (file1.size)
+                       free(file1.ptr);
+               if (file2.size)
+                       free(file2.ptr);
                return 0;
        }
 
@@ -285,17 +291,23 @@ int cgit_diff_files(const unsigned char *old_sha1,
        memset(&emit_params, 0, sizeof(emit_params));
        memset(&emit_cb, 0, sizeof(emit_cb));
        diff_params.flags = XDF_NEED_MINIMAL;
-       emit_params.ctxlen = 3;
+       if (ignorews)
+               diff_params.flags |= XDF_IGNORE_WHITESPACE;
+       emit_params.ctxlen = context > 0 ? context : 3;
        emit_params.flags = XDL_EMIT_FUNCNAMES;
        emit_cb.outf = filediff_cb;
        emit_cb.priv = fn;
        xdl_diff(&file1, &file2, &diff_params, &emit_params, &emit_cb);
+       if (file1.size)
+               free(file1.ptr);
+       if (file2.size)
+               free(file2.ptr);
        return 0;
 }
 
 void cgit_diff_tree(const unsigned char *old_sha1,
                    const unsigned char *new_sha1,
-                   filepair_fn fn, const char *prefix)
+                   filepair_fn fn, const char *prefix, int ignorews)
 {
        struct diff_options opt;
        int ret;
@@ -306,6 +318,8 @@ void cgit_diff_tree(const unsigned char *old_sha1,
        opt.detect_rename = 1;
        opt.rename_limit = ctx.cfg.renamelimit;
        DIFF_OPT_SET(&opt, RECURSIVE);
+       if (ignorews)
+               DIFF_XDL_SET(&opt, IGNORE_WHITESPACE);
        opt.format_callback = cgit_diff_tree_cb;
        opt.format_callback_data = fn;
        if (prefix) {
@@ -330,7 +344,8 @@ void cgit_diff_commit(struct commit *commit, filepair_fn fn)
 
        if (commit->parents)
                old_sha1 = commit->parents->item->object.sha1;
-       cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL);
+       cgit_diff_tree(old_sha1, commit->object.sha1, fn, NULL,
+                      ctx.qry.ignorews);
 }
 
 int cgit_parse_snapshots_mask(const char *str)
@@ -400,18 +415,96 @@ int cgit_close_filter(struct cgit_filter *filter)
  */
 int readfile(const char *path, char **buf, size_t *size)
 {
-       int fd;
+       int fd, e;
        struct stat st;
 
        fd = open(path, O_RDONLY);
        if (fd == -1)
                return errno;
-       if (fstat(fd, &st))
-               return errno;
-       if (!S_ISREG(st.st_mode))
+       if (fstat(fd, &st)) {
+               e = errno;
+               close(fd);
+               return e;
+       }
+       if (!S_ISREG(st.st_mode)) {
+               close(fd);
                return EISDIR;
+       }
        *buf = xmalloc(st.st_size + 1);
        *size = read_in_full(fd, *buf, st.st_size);
+       e = errno;
        (*buf)[*size] = '\0';
-       return (*size == st.st_size ? 0 : errno);
+       close(fd);
+       return (*size == st.st_size ? 0 : e);
+}
+
+int is_token_char(char c)
+{
+       return isalnum(c) || c == '_';
+}
+
+/* Replace name with getenv(name), return pointer to zero-terminating char
+ */
+char *expand_macro(char *name, int maxlength)
+{
+       char *value;
+       int len;
+
+       len = 0;
+       value = getenv(name);
+       if (value) {
+               len = strlen(value);
+               if (len > maxlength)
+                       len = maxlength;
+               strncpy(name, value, len);
+       }
+       return name + len;
+}
+
+#define EXPBUFSIZE (1024 * 8)
+
+/* Replace all tokens prefixed by '$' in the specified text with the
+ * value of the named environment variable.
+ * NB: the return value is a static buffer, i.e. it must be strdup'd
+ * by the caller.
+ */
+char *expand_macros(const char *txt)
+{
+       static char result[EXPBUFSIZE];
+       char *p, *start;
+       int len;
+
+       p = result;
+       start = NULL;
+       while (p < result + EXPBUFSIZE - 1 && txt && *txt) {
+               *p = *txt;
+               if (start) {
+                       if (!is_token_char(*txt)) {
+                               if (p - start > 0) {
+                                       *p = '\0';
+                                       len = result + EXPBUFSIZE - start - 1;
+                                       p = expand_macro(start, len) - 1;
+                               }
+                               start = NULL;
+                               txt--;
+                       }
+                       p++;
+                       txt++;
+                       continue;
+               }
+               if (*txt == '$') {
+                       start = p;
+                       txt++;
+                       continue;
+               }
+               p++;
+               txt++;
+       }
+       *p = '\0';
+       if (start && p - start > 0) {
+               len = result + EXPBUFSIZE - start - 1;
+               p = expand_macro(start, len);
+               *p = '\0';
+       }
+       return result;
 }