refactor get_mimetype_from_file() to get_mimetype_for_filename()

[ps-cgit] / shared.c

diff --git a/shared.c b/shared.c
index 8b3a0457748a3f3ef30b48c8d1aecffa4a2c6b66..225ce1541ff723081fd73147e1dddfce7fb5dee7 100644 (file)
--- a/shared.c
+++ b/shared.c
@@ -1,6 +1,6 @@
 /* shared.c: global vars + some callback functions
  *
 /* shared.c: global vars + some callback functions
  *

- * Copyright (C) 2006 Lars Hjemli
+ * Copyright (C) 2006-2014 cgit Development Team <cgit@lists.zx2c4.com>

  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)
  *
  * Licensed under GNU General Public License v2
  *   (see COPYING for full license text)


@@ -10,29 +10,29 @@
 
 struct cgit_repolist cgit_repolist;
 struct cgit_context ctx;
 
 struct cgit_repolist cgit_repolist;
 struct cgit_context ctx;

-int cgit_cmd;

 
 int chk_zero(int result, char *msg)
 {
        if (result != 0)
 
 int chk_zero(int result, char *msg)
 {
        if (result != 0)

-               die("%s: %s", msg, strerror(errno));
+               die_errno("%s", msg);

        return result;
 }
 
 int chk_positive(int result, char *msg)
 {
        if (result <= 0)
        return result;
 }
 
 int chk_positive(int result, char *msg)
 {
        if (result <= 0)

-               die("%s: %s", msg, strerror(errno));
+               die_errno("%s", msg);

        return result;
 }
 
 int chk_non_negative(int result, char *msg)
 {
        return result;
 }
 
 int chk_non_negative(int result, char *msg)
 {

-       if (result < 0)
-               die("%s: %s",msg, strerror(errno));
+       if (result < 0)
+               die_errno("%s", msg);

        return result;
 }
 
        return result;
 }
 

+char *cgit_default_repo_desc = "[no description]";

 struct cgit_repo *cgit_add_repo(const char *url)
 {
        struct cgit_repo *ret;
 struct cgit_repo *cgit_add_repo(const char *url)
 {
        struct cgit_repo *ret;


@@ -52,22 +52,29 @@ struct cgit_repo *cgit_add_repo(const char *url)
        ret->url = trim_end(url, '/');
        ret->name = ret->url;
        ret->path = NULL;
        ret->url = trim_end(url, '/');
        ret->name = ret->url;
        ret->path = NULL;

-       ret->desc = "[no description]";
+       ret->desc = cgit_default_repo_desc;

        ret->owner = NULL;
        ret->section = ctx.cfg.section;
        ret->owner = NULL;
        ret->section = ctx.cfg.section;

-       ret->defbranch = "master";

        ret->snapshots = ctx.cfg.snapshots;
        ret->snapshots = ctx.cfg.snapshots;

+       ret->enable_commit_graph = ctx.cfg.enable_commit_graph;

        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->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->branch_sort = ctx.cfg.branch_sort;
+       ret->commit_sort = ctx.cfg.commit_sort;

        ret->module_link = ctx.cfg.module_link;
        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;
        ret->source_filter = ctx.cfg.source_filter;
        ret->mtime = -1;
        ret->about_filter = ctx.cfg.about_filter;
        ret->commit_filter = ctx.cfg.commit_filter;
        ret->source_filter = ctx.cfg.source_filter;

+       ret->email_filter = ctx.cfg.email_filter;
+       ret->owner_filter = ctx.cfg.owner_filter;
+       ret->clone_url = ctx.cfg.clone_url;
+       ret->submodules.strdup_strings = 1;
+       ret->hide = ret->ignore = 0;

        return ret;
 }
 
        return ret;
 }
 


@@ -76,8 +83,10 @@ struct cgit_repo *cgit_get_repoinfo(const char *url)
        int i;
        struct cgit_repo *repo;
 
        int i;
        struct cgit_repo *repo;
 

-       for (i=0; i<cgit_repolist.count; i++) {
+       for (i = 0; i < cgit_repolist.count; i++) {

                repo = &cgit_repolist.repos[i];
                repo = &cgit_repolist.repos[i];

+               if (repo->ignore)
+                       continue;

                if (!strcmp(repo->url, url))
                        return repo;
        }
                if (!strcmp(repo->url, url))
                        return repo;
        }


@@ -100,23 +109,36 @@ void *cgit_free_commitinfo(struct commitinfo *info)
 char *trim_end(const char *str, char c)
 {
        int len;
 char *trim_end(const char *str, char c)
 {
        int len;

-       char *s, *t;

 
        if (str == NULL)
                return NULL;
 
        if (str == NULL)
                return NULL;

-       t = (char *)str;
-       len = strlen(t);
-       while(len > 0 && t[len - 1] == c)
+       len = strlen(str);
+       while (len > 0 && str[len - 1] == c)

                len--;
                len--;

-

        if (len == 0)
                return NULL;
        if (len == 0)
                return NULL;

+       return xstrndup(str, len);
+}
+
+char *ensure_end(const char *str, char c)
+{
+       size_t len = strlen(str);
+       char *result;
+
+       if (len && str[len - 1] == c)
+               return xstrndup(str, len);

 
 

-       c = t[len];
-       t[len] = '\0';
-       s = xstrdup(t);
-       t[len] = c;
-       return s;
+       result = xmalloc(len + 2);
+       memcpy(result, str, len);
+       result[len] = '/';
+       result[len + 1] = '\0';
+       return result;
+}
+
+void strbuf_ensure_end(struct strbuf *sb, char c)
+{
+       if (!sb->len || sb->buf[sb->len - 1] != c)
+               strbuf_addch(sb, c);

 }
 
 char *strlpart(char *txt, int maxlen)
 }
 
 char *strlpart(char *txt, int maxlen)


@@ -162,13 +184,13 @@ void cgit_add_ref(struct reflist *list, struct refinfo *ref)
        list->refs[list->count++] = ref;
 }
 
        list->refs[list->count++] = ref;
 }
 

-struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char *sha1)
+static struct refinfo *cgit_mk_refinfo(const char *refname, const struct object_id *oid)

 {
        struct refinfo *ref;
 
        ref = xmalloc(sizeof (struct refinfo));
        ref->refname = xstrdup(refname);
 {
        struct refinfo *ref;
 
        ref = xmalloc(sizeof (struct refinfo));
        ref->refname = xstrdup(refname);

-       ref->object = parse_object(sha1);
+       ref->object = parse_object(oid->hash);

        switch (ref->object->type) {
        case OBJ_TAG:
                ref->tag = cgit_parse_tag((struct tag *)ref->object);
        switch (ref->object->type) {
        case OBJ_TAG:
                ref->tag = cgit_parse_tag((struct tag *)ref->object);


@@ -180,11 +202,47 @@ struct refinfo *cgit_mk_refinfo(const char *refname, const unsigned char *sha1)
        return ref;
 }
 
        return ref;
 }
 

-int cgit_refs_cb(const char *refname, const unsigned char *sha1, int flags,
+static void cgit_free_taginfo(struct taginfo *tag)
+{
+       if (tag->tagger)
+               free(tag->tagger);
+       if (tag->tagger_email)
+               free(tag->tagger_email);
+       if (tag->msg)
+               free(tag->msg);
+       free(tag);
+}
+
+static void cgit_free_refinfo(struct refinfo *ref)
+{
+       if (ref->refname)
+               free((char *)ref->refname);
+       switch (ref->object->type) {
+       case OBJ_TAG:
+               cgit_free_taginfo(ref->tag);
+               break;
+       case OBJ_COMMIT:
+               cgit_free_commitinfo(ref->commit);
+               break;
+       }
+       free(ref);
+}
+
+void cgit_free_reflist_inner(struct reflist *list)
+{
+       int i;
+
+       for (i = 0; i < list->count; i++) {
+               cgit_free_refinfo(list->refs[i]);
+       }
+       free(list->refs);
+}
+
+int cgit_refs_cb(const char *refname, const struct object_id *oid, int flags,

                  void *cb_data)
 {
        struct reflist *list = (struct reflist *)cb_data;
                  void *cb_data)
 {
        struct reflist *list = (struct reflist *)cb_data;

-       struct refinfo *info = cgit_mk_refinfo(refname, sha1);
+       struct refinfo *info = cgit_mk_refinfo(refname, oid);

 
        if (info)
                cgit_add_ref(list, info);
 
        if (info)
                cgit_add_ref(list, info);


@@ -211,7 +269,7 @@ static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
                file->ptr = (char *)"";
                file->size = 0;
        } else {
                file->ptr = (char *)"";
                file->size = 0;
        } else {

-               file->ptr = read_sha1_file(sha1, &type, 
+               file->ptr = read_sha1_file(sha1, &type,

                                           (unsigned long *)&file->size);
        }
        return 1;
                                           (unsigned long *)&file->size);
        }
        return 1;


@@ -225,10 +283,10 @@ static int load_mmfile(mmfile_t *file, const unsigned char *sha1)
  * ripped from git and modified to use globals instead of
  * a special callback-struct.
  */
  * ripped from git and modified to use globals instead of
  * a special callback-struct.
  */

-char *diffbuf = NULL;
-int buflen = 0;
+static char *diffbuf = NULL;
+static int buflen = 0;

 
 

-int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)
+static int filediff_cb(void *priv, mmbuffer_t *mb, int nbuf)

 {
        int i;
 
 {
        int i;
 


@@ -264,7 +322,8 @@ 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,
 
 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;
 {
        mmfile_t file1, file2;
        xpparam_t diff_params;


@@ -291,7 +350,9 @@ 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;
        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;
        emit_params.flags = XDL_EMIT_FUNCNAMES;
        emit_cb.outf = filediff_cb;
        emit_cb.priv = fn;


@@ -305,104 +366,100 @@ int cgit_diff_files(const unsigned char *old_sha1,
 
 void cgit_diff_tree(const unsigned char *old_sha1,
                    const unsigned char *new_sha1,
 
 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;
 {
        struct diff_options opt;

-       int ret;
-       int prefixlen;
+       struct pathspec_item item;

 
 

+       memset(&item, 0, sizeof(item));

        diff_setup(&opt);
        opt.output_format = DIFF_FORMAT_CALLBACK;
        opt.detect_rename = 1;
        opt.rename_limit = ctx.cfg.renamelimit;
        DIFF_OPT_SET(&opt, RECURSIVE);
        diff_setup(&opt);
        opt.output_format = DIFF_FORMAT_CALLBACK;
        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) {
        opt.format_callback = cgit_diff_tree_cb;
        opt.format_callback_data = fn;
        if (prefix) {

-               opt.nr_paths = 1;
-               opt.paths = &prefix;
-               prefixlen = strlen(prefix);
-               opt.pathlens = &prefixlen;
+               item.match = prefix;
+               item.len = strlen(prefix);
+               opt.pathspec.nr = 1;
+               opt.pathspec.items = &item;

        }
        diff_setup_done(&opt);
 
        if (old_sha1 && !is_null_sha1(old_sha1))
        }
        diff_setup_done(&opt);
 
        if (old_sha1 && !is_null_sha1(old_sha1))

-               ret = diff_tree_sha1(old_sha1, new_sha1, "", &opt);
+               diff_tree_sha1(old_sha1, new_sha1, "", &opt);

        else
        else

-               ret = diff_root_tree_sha1(new_sha1, "", &opt);
+               diff_root_tree_sha1(new_sha1, "", &opt);

        diffcore_std(&opt);
        diff_flush(&opt);
 }
 
        diffcore_std(&opt);
        diff_flush(&opt);
 }
 

-void cgit_diff_commit(struct commit *commit, filepair_fn fn)
+void cgit_diff_commit(struct commit *commit, filepair_fn fn, const char *prefix)

 {
        unsigned char *old_sha1 = NULL;
 
        if (commit->parents)
                old_sha1 = commit->parents->item->object.sha1;
 {
        unsigned char *old_sha1 = NULL;
 
        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, prefix,
+                      ctx.qry.ignorews);

 }
 
 int cgit_parse_snapshots_mask(const char *str)
 {
 }
 
 int cgit_parse_snapshots_mask(const char *str)
 {

+       struct string_list tokens = STRING_LIST_INIT_DUP;
+       struct string_list_item *item;

        const struct cgit_snapshot_format *f;
        const struct cgit_snapshot_format *f;

-       static const char *delim = " \t,:/|;";
-       int tl, sl, rv = 0;
+       int rv = 0;

 
        /* favor legacy setting */
 
        /* favor legacy setting */

-       if(atoi(str))
+       if (atoi(str))

                return 1;
                return 1;

-       for(;;) {
-               str += strspn(str,delim);
-               tl = strcspn(str,delim);
-               if (!tl)
-                       break;
+
+       string_list_split(&tokens, str, ' ', -1);
+       string_list_remove_empty_items(&tokens, 0);
+
+       for_each_string_list_item(item, &tokens) {

                for (f = cgit_snapshot_formats; f->suffix; f++) {
                for (f = cgit_snapshot_formats; f->suffix; f++) {

-                       sl = strlen(f->suffix);
-                       if((tl == sl && !strncmp(f->suffix, str, tl)) ||
-                          (tl == sl-1 && !strncmp(f->suffix+1, str, tl-1))) {
+                       if (!strcmp(item->string, f->suffix) ||
+                           !strcmp(item->string, f->suffix + 1)) {

                                rv |= f->bit;
                                break;
                        }
                }
                                rv |= f->bit;
                                break;
                        }
                }

-               str += tl;

        }
        }

+
+       string_list_clear(&tokens, 0);

        return rv;
 }
 
        return rv;
 }
 

-int cgit_open_filter(struct cgit_filter *filter)
-{
-
-       filter->old_stdout = chk_positive(dup(STDOUT_FILENO),
-               "Unable to duplicate STDOUT");
-       chk_zero(pipe(filter->pipe_fh), "Unable to create pipe to subprocess");
-       filter->pid = chk_non_negative(fork(), "Unable to create subprocess");
-       if (filter->pid == 0) {
-               close(filter->pipe_fh[1]);
-               chk_non_negative(dup2(filter->pipe_fh[0], STDIN_FILENO),
-                       "Unable to use pipe as STDIN");
-               execvp(filter->cmd, filter->argv);
-               die("Unable to exec subprocess %s: %s (%d)", filter->cmd,
-                       strerror(errno), errno);
-       }
-       close(filter->pipe_fh[0]);
-       chk_non_negative(dup2(filter->pipe_fh[1], STDOUT_FILENO),
-               "Unable to use pipe as STDOUT");
-       close(filter->pipe_fh[1]);
-       return 0;
-}
+typedef struct {
+       char * name;
+       char * value;
+} cgit_env_var;

 
 

-int cgit_close_filter(struct cgit_filter *filter)
+void cgit_prepare_repo_env(struct cgit_repo * repo)

 {
 {

-       chk_non_negative(dup2(filter->old_stdout, STDOUT_FILENO),
-               "Unable to restore STDOUT");
-       close(filter->old_stdout);
-       if (filter->pid < 0)
-               return 0;
-       waitpid(filter->pid, &filter->exitstatus, 0);
-       if (WIFEXITED(filter->exitstatus) && !WEXITSTATUS(filter->exitstatus))
-               return 0;
-       die("Subprocess %s exited abnormally", filter->cmd);
+       cgit_env_var env_vars[] = {
+               { .name = "CGIT_REPO_URL", .value = repo->url },
+               { .name = "CGIT_REPO_NAME", .value = repo->name },
+               { .name = "CGIT_REPO_PATH", .value = repo->path },
+               { .name = "CGIT_REPO_OWNER", .value = repo->owner },
+               { .name = "CGIT_REPO_DEFBRANCH", .value = repo->defbranch },
+               { .name = "CGIT_REPO_SECTION", .value = repo->section },
+               { .name = "CGIT_REPO_CLONE_URL", .value = repo->clone_url }
+       };
+       int env_var_count = ARRAY_SIZE(env_vars);
+       cgit_env_var *p, *q;
+       static char *warn = "cgit warning: failed to set env: %s=%s\n";
+
+       p = env_vars;
+       q = p + env_var_count;
+       for (; p < q; p++)
+               if (p->value && setenv(p->name, p->value, 1))
+                       fprintf(stderr, warn, p->name, p->value);

 }
 
 /* Read the content of the specified file into a newly allocated buffer,
 }
 
 /* Read the content of the specified file into a newly allocated buffer,


@@ -432,3 +489,123 @@ int readfile(const char *path, char **buf, size_t *size)
        close(fd);
        return (*size == st.st_size ? 0 : e);
 }
        close(fd);
        return (*size == st.st_size ? 0 : e);
 }

+
+static int is_token_char(char c)
+{
+       return isalnum(c) || c == '_';
+}
+
+/* Replace name with getenv(name), return pointer to zero-terminating char
+ */
+static 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;
+}
+
+char *get_mimetype_for_filename(const char *filename)
+{
+       static const char *delimiters;
+       char *ext = NULL, *iterate, *mimetype = NULL, *token;
+       char line[1024];
+       FILE *fd;
+       struct string_list_item *mime;
+
+       if (filename == NULL)
+               return NULL;
+
+       ext = strrchr(filename, '.');
+
+       if (ext && *(++ext)) {
+               mime = string_list_lookup(&ctx.cfg.mimetypes, ext);
+               if (mime) {
+                       /* We could just pass the pointer here, but would have to care
+                        * whether or not to free the memory. Instead just dup. */
+                       mimetype = xstrdup(mime->util);
+               } else if (ctx.cfg.mimetype_file != NULL) {
+                       fd = fopen(ctx.cfg.mimetype_file, "r");
+                       if (fd == NULL)
+                               return NULL;
+
+                       delimiters = " \t\r\n";
+
+                       /* loop over all lines in the file */
+                       while (mimetype == NULL && fgets(line, sizeof(line), fd)) {
+                               iterate = strtok(line, delimiters);
+
+                               /* skip empty lines and comment lines */
+                               if (iterate == NULL || (iterate[0] == '#'))
+                                       continue;
+
+                               /* loop over all extensions of mimetype */
+                               while ((token = strtok(NULL, delimiters))) {
+                                       if (strcasecmp(ext, token) == 0) {
+                                               mimetype = xstrdup(iterate);
+                                               break;
+                                       }
+                               }
+                       }
+                       fclose(fd);
+               }
+       }
+
+       return mimetype;
+}