]> git.ipfire.org Git - thirdparty/git.git/blobdiff - ref-filter.c
ref-filter: add multiple-option parsing functions
[thirdparty/git.git] / ref-filter.c
index 4991cd4f7a860be1cf508e88668d1fd8af2ff9ae..66b8bc586d1c3de2ad020aa7fda1739a5f40001a 100644 (file)
@@ -1,14 +1,14 @@
 #include "git-compat-util.h"
-#include "alloc.h"
 #include "environment.h"
 #include "gettext.h"
+#include "config.h"
 #include "gpg-interface.h"
 #include "hex.h"
 #include "parse-options.h"
 #include "refs.h"
 #include "wildmatch.h"
 #include "object-name.h"
-#include "object-store.h"
+#include "object-store-ll.h"
 #include "oid-array.h"
 #include "repository.h"
 #include "commit.h"
@@ -150,6 +150,7 @@ enum atom_type {
        ATOM_BODY,
        ATOM_TRAILERS,
        ATOM_CONTENTS,
+       ATOM_SIGNATURE,
        ATOM_RAW,
        ATOM_UPSTREAM,
        ATOM_PUSH,
@@ -215,6 +216,10 @@ static struct used_atom {
                struct email_option {
                        enum { EO_RAW, EO_TRIM, EO_LOCALPART } option;
                } email_option;
+               struct {
+                       enum { S_BARE, S_GRADE, S_SIGNER, S_KEY,
+                              S_FINGERPRINT, S_PRI_KEY_FP, S_TRUST_LEVEL } option;
+               } signature;
                struct refname_atom refname;
                char *head;
        } u;
@@ -251,6 +256,110 @@ static int err_bad_arg(struct strbuf *sb, const char *name, const char *arg)
        return -1;
 }
 
+/*
+ * Parse option of name "candidate" in the option string "to_parse" of
+ * the form
+ *
+ *     "candidate1[=val1],candidate2[=val2],candidate3[=val3],..."
+ *
+ * The remaining part of "to_parse" is stored in "end" (if we are
+ * parsing the last candidate, then this is NULL) and the value of
+ * the candidate is stored in "valuestart" and its length in "valuelen",
+ * that is the portion after "=". Since it is possible for a "candidate"
+ * to not have a value, in such cases, "valuestart" is set to point to
+ * NULL and "valuelen" to 0.
+ *
+ * The function returns 1 on success. It returns 0 if we don't find
+ * "candidate" in "to_parse" or we find "candidate" but it is followed
+ * by more chars (for example, "candidatefoo"), that is, we don't find
+ * an exact match.
+ *
+ * This function only does the above for one "candidate" at a time. So
+ * it has to be called each time trying to parse a "candidate" in the
+ * option string "to_parse".
+ */
+static int match_atom_arg_value(const char *to_parse, const char *candidate,
+                               const char **end, const char **valuestart,
+                               size_t *valuelen)
+{
+       const char *atom;
+
+       if (!skip_prefix(to_parse, candidate, &atom))
+               return 0; /* definitely not "candidate" */
+
+       if (*atom == '=') {
+               /* we just saw "candidate=" */
+               *valuestart = atom + 1;
+               atom = strchrnul(*valuestart, ',');
+               *valuelen = atom - *valuestart;
+       } else if (*atom != ',' && *atom != '\0') {
+               /* key begins with "candidate" but has more chars */
+               return 0;
+       } else {
+               /* just "candidate" without "=val" */
+               *valuestart = NULL;
+               *valuelen = 0;
+       }
+
+       /* atom points at either the ',' or NUL after this key[=val] */
+       if (*atom == ',')
+               atom++;
+       else if (*atom)
+               BUG("Why is *atom not NULL yet?");
+
+       *end = atom;
+       return 1;
+}
+
+/*
+ * Parse boolean option of name "candidate" in the option list "to_parse"
+ * of the form
+ *
+ *     "candidate1[=bool1],candidate2[=bool2],candidate3[=bool3],..."
+ *
+ * The remaining part of "to_parse" is stored in "end" (if we are parsing
+ * the last candidate, then this is NULL) and the value (if given) is
+ * parsed and stored in "val", so "val" always points to either 0 or 1.
+ * If the value is not given, then "val" is set to point to 1.
+ *
+ * The boolean value is parsed using "git_parse_maybe_bool()", so the
+ * accepted values are
+ *
+ *     to set true  - "1", "yes", "true"
+ *     to set false - "0", "no", "false"
+ *
+ * This function returns 1 on success. It returns 0 when we don't find
+ * an exact match for "candidate" or when the boolean value given is
+ * not valid.
+ */
+static int match_atom_bool_arg(const char *to_parse, const char *candidate,
+                               const char **end, int *val)
+{
+       const char *argval;
+       char *strval;
+       size_t arglen;
+       int v;
+
+       if (!match_atom_arg_value(to_parse, candidate, end, &argval, &arglen))
+               return 0;
+
+       if (!argval) {
+               *val = 1;
+               return 1;
+       }
+
+       strval = xstrndup(argval, arglen);
+       v = git_parse_maybe_bool(strval);
+       free(strval);
+
+       if (v == -1)
+               return 0;
+
+       *val = v;
+
+       return 1;
+}
+
 static int color_atom_parser(struct ref_format *format, struct used_atom *atom,
                             const char *color_value, struct strbuf *err)
 {
@@ -407,8 +516,37 @@ static int subject_atom_parser(struct ref_format *format UNUSED,
        return 0;
 }
 
-static int trailers_atom_parser(struct ref_format *format UNUSED,
-                               struct used_atom *atom,
+static int parse_signature_option(const char *arg)
+{
+       if (!arg)
+               return S_BARE;
+       else if (!strcmp(arg, "signer"))
+               return S_SIGNER;
+       else if (!strcmp(arg, "grade"))
+               return S_GRADE;
+       else if (!strcmp(arg, "key"))
+               return S_KEY;
+       else if (!strcmp(arg, "fingerprint"))
+               return S_FINGERPRINT;
+       else if (!strcmp(arg, "primarykeyfingerprint"))
+               return S_PRI_KEY_FP;
+       else if (!strcmp(arg, "trustlevel"))
+               return S_TRUST_LEVEL;
+       return -1;
+}
+
+static int signature_atom_parser(struct ref_format *format UNUSED,
+                                struct used_atom *atom,
+                                const char *arg, struct strbuf *err)
+{
+       int opt = parse_signature_option(arg);
+       if (opt < 0)
+               return err_bad_arg(err, "signature", arg);
+       atom->u.signature.option = opt;
+       return 0;
+}
+
+static int trailers_atom_parser(struct ref_format *format, struct used_atom *atom,
                                const char *arg, struct strbuf *err)
 {
        atom->u.contents.trailer_opts.no_divider = 1;
@@ -668,6 +806,7 @@ static struct {
        [ATOM_BODY] = { "body", SOURCE_OBJ, FIELD_STR, body_atom_parser },
        [ATOM_TRAILERS] = { "trailers", SOURCE_OBJ, FIELD_STR, trailers_atom_parser },
        [ATOM_CONTENTS] = { "contents", SOURCE_OBJ, FIELD_STR, contents_atom_parser },
+       [ATOM_SIGNATURE] = { "signature", SOURCE_OBJ, FIELD_STR, signature_atom_parser },
        [ATOM_RAW] = { "raw", SOURCE_OBJ, FIELD_STR, raw_atom_parser },
        [ATOM_UPSTREAM] = { "upstream", SOURCE_NONE, FIELD_STR, remote_ref_atom_parser },
        [ATOM_PUSH] = { "push", SOURCE_NONE, FIELD_STR, remote_ref_atom_parser },
@@ -1405,6 +1544,92 @@ static void grab_person(const char *who, struct atom_value *val, int deref, void
        }
 }
 
+static void grab_signature(struct atom_value *val, int deref, struct object *obj)
+{
+       int i;
+       struct commit *commit = (struct commit *) obj;
+       struct signature_check sigc = { 0 };
+       int signature_checked = 0;
+
+       for (i = 0; i < used_atom_cnt; i++) {
+               struct used_atom *atom = &used_atom[i];
+               const char *name = atom->name;
+               struct atom_value *v = &val[i];
+               int opt;
+
+               if (!!deref != (*name == '*'))
+                       continue;
+               if (deref)
+                       name++;
+
+               if (!skip_prefix(name, "signature", &name) ||
+                   (*name && *name != ':'))
+                       continue;
+               if (!*name)
+                       name = NULL;
+               else
+                       name++;
+
+               opt = parse_signature_option(name);
+               if (opt < 0)
+                       continue;
+
+               if (!signature_checked) {
+                       check_commit_signature(commit, &sigc);
+                       signature_checked = 1;
+               }
+
+               switch (opt) {
+               case S_BARE:
+                       v->s = xstrdup(sigc.output ? sigc.output: "");
+                       break;
+               case S_SIGNER:
+                       v->s = xstrdup(sigc.signer ? sigc.signer : "");
+                       break;
+               case S_GRADE:
+                       switch (sigc.result) {
+                       case 'G':
+                               switch (sigc.trust_level) {
+                               case TRUST_UNDEFINED:
+                               case TRUST_NEVER:
+                                       v->s = xstrfmt("%c", (char)'U');
+                                       break;
+                               default:
+                                       v->s = xstrfmt("%c", (char)'G');
+                                       break;
+                               }
+                               break;
+                       case 'B':
+                       case 'E':
+                       case 'N':
+                       case 'X':
+                       case 'Y':
+                       case 'R':
+                               v->s = xstrfmt("%c", (char)sigc.result);
+                               break;
+                       }
+                       break;
+               case S_KEY:
+                       v->s = xstrdup(sigc.key ? sigc.key : "");
+                       break;
+               case S_FINGERPRINT:
+                       v->s = xstrdup(sigc.fingerprint ?
+                                      sigc.fingerprint : "");
+                       break;
+               case S_PRI_KEY_FP:
+                       v->s = xstrdup(sigc.primary_key_fingerprint ?
+                                      sigc.primary_key_fingerprint : "");
+                       break;
+               case S_TRUST_LEVEL:
+                       v->s = xstrdup(gpg_trust_level_to_str(sigc.trust_level));
+                       break;
+               }
+       }
+
+       if (signature_checked)
+               signature_check_clear(&sigc);
+}
+
 static void find_subpos(const char *buf,
                        const char **sub, size_t *sublen,
                        const char **body, size_t *bodylen,
@@ -1598,6 +1823,7 @@ static void grab_values(struct atom_value *val, int deref, struct object *obj, s
                grab_sub_body_contents(val, deref, data);
                grab_person("author", val, deref, buf);
                grab_person("committer", val, deref, buf);
+               grab_signature(val, deref, obj);
                break;
        case OBJ_TREE:
                /* grab_tree_values(val, deref, obj, buf, sz); */