diff options
| -rw-r--r-- | Documentation/git-for-each-ref.txt | 42 | ||||
| -rw-r--r-- | ref-filter.c | 41 | ||||
| -rwxr-xr-x | t/t6300-for-each-ref.sh | 19 |
3 files changed, 81 insertions, 21 deletions
diff --git a/Documentation/git-for-each-ref.txt b/Documentation/git-for-each-ref.txt index 8e4d16d7a3..2008600e7e 100644 --- a/Documentation/git-for-each-ref.txt +++ b/Documentation/git-for-each-ref.txt @@ -95,13 +95,15 @@ refname:: The name of the ref (the part after $GIT_DIR/). For a non-ambiguous short name of the ref append `:short`. The option core.warnAmbiguousRefs is used to select the strict - abbreviation mode. If `lstrip=<N>` is appended, strips `<N>` - slash-separated path components from the front of the refname - (e.g. `%(refname:lstrip=2)` turns `refs/tags/foo` into `foo`. + abbreviation mode. If `lstrip=<N>` (`rstrip=<N>`) is appended, strips `<N>` + slash-separated path components from the front (back) of the refname + (e.g. `%(refname:lstrip=2)` turns `refs/tags/foo` into `foo` and + `%(refname:rstrip=2)` turns `refs/tags/foo` into `refs`). If `<N>` is a negative number, strip as many path components as - necessary from the left to leave `-<N>` path components + necessary from the specified end to leave `-<N>` path components (e.g. `%(refname:lstrip=-2)` turns - `refs/tags/foo` into `tags/foo`). When the ref does not have + `refs/tags/foo` into `tags/foo` and `%(refname:rstrip=-1)` + turns `refs/tags/foo` into `refs`). When the ref does not have enough components, the result becomes an empty string if stripping with positive <N>, or it becomes the full refname if stripping with negative <N>. Neither is an error. @@ -121,22 +123,23 @@ objectname:: upstream:: The name of a local ref which can be considered ``upstream'' - from the displayed ref. Respects `:short` and `:lstrip` in the - same way as `refname` above. Additionally respects `:track` - to show "[ahead N, behind M]" and `:trackshort` to show the - terse version: ">" (ahead), "<" (behind), "<>" (ahead and - behind), or "=" (in sync). `:track` also prints "[gone]" - whenever unknown upstream ref is encountered. Append - `:track,nobracket` to show tracking information without - brackets (i.e "ahead N, behind M"). Has no effect if the ref - does not have tracking information associated with it. All - the options apart from `nobracket` are mutually exclusive, but - if used together the last option is selected. + from the displayed ref. Respects `:short`, `:lstrip` and + `:rstrip` in the same way as `refname` above. Additionally + respects `:track` to show "[ahead N, behind M]" and + `:trackshort` to show the terse version: ">" (ahead), "<" + (behind), "<>" (ahead and behind), or "=" (in sync). `:track` + also prints "[gone]" whenever unknown upstream ref is + encountered. Append `:track,nobracket` to show tracking + information without brackets (i.e "ahead N, behind M"). Has + no effect if the ref does not have tracking information + associated with it. All the options apart from `nobracket` + are mutually exclusive, but if used together the last option + is selected. push:: The name of a local ref which represents the `@{push}` location for the displayed ref. Respects `:short`, `:lstrip`, - `:track`, and `:trackshort` options as `upstream` + `:rstrip`, `:track`, and `:trackshort` options as `upstream` does. Produces an empty string if no `@{push}` ref is configured. @@ -178,8 +181,9 @@ if:: symref:: The ref which the given symbolic ref refers to. If not a - symbolic ref, nothing is printed. Respects the `:short` and - `:lstrip` options in the same way as `refname` above. + symbolic ref, nothing is printed. Respects the `:short`, + `:lstrip` and `:rstrip` options in the same way as `refname` + above. In addition to the above, for commit and tag objects, the header field names (`tree`, `parent`, `object`, `type`, and `tag`) can diff --git a/ref-filter.c b/ref-filter.c index 2840ca18e3..47e292bc46 100644 --- a/ref-filter.c +++ b/ref-filter.c @@ -33,8 +33,8 @@ struct if_then_else { }; struct refname_atom { - enum { R_NORMAL, R_SHORT, R_LSTRIP } option; - int lstrip; + enum { R_NORMAL, R_SHORT, R_LSTRIP, R_RSTRIP } option; + int lstrip, rstrip; }; /* @@ -95,6 +95,10 @@ static void refname_atom_parser_internal(struct refname_atom *atom, atom->option = R_LSTRIP; if (strtol_i(arg, 10, &atom->lstrip)) die(_("Integer value expected refname:lstrip=%s"), arg); + } else if (skip_prefix(arg, "rstrip=", &arg)) { + atom->option = R_RSTRIP; + if (strtol_i(arg, 10, &atom->rstrip)) + die(_("Integer value expected refname:rstrip=%s"), arg); } else die(_("unrecognized %%(%s) argument: %s"), name, arg); } @@ -1125,12 +1129,45 @@ static const char *lstrip_ref_components(const char *refname, int len) return start; } +static const char *rstrip_ref_components(const char *refname, int len) +{ + long remaining = len; + char *start = xstrdup(refname); + + if (len < 0) { + int i; + const char *p = refname; + + /* Find total no of '/' separated path-components */ + for (i = 0; p[i]; p[i] == '/' ? i++ : *p++) + ; + /* + * The number of components we need to strip is now + * the total minus the components to be left (Plus one + * because we count the number of '/', but the number + * of components is one more than the no of '/'). + */ + remaining = i + len + 1; + } + + while (remaining-- > 0) { + char *p = strrchr(start, '/'); + if (p == NULL) + return ""; + else + p[0] = '\0'; + } + return start; +} + static const char *show_ref(struct refname_atom *atom, const char *refname) { if (atom->option == R_SHORT) return shorten_unambiguous_ref(refname, warn_ambiguous_refs); else if (atom->option == R_LSTRIP) return lstrip_ref_components(refname, atom->lstrip); + else if (atom->option == R_RSTRIP) + return rstrip_ref_components(refname, atom->rstrip); else return refname; } diff --git a/t/t6300-for-each-ref.sh b/t/t6300-for-each-ref.sh index 203cfaa156..25a9973ce9 100755 --- a/t/t6300-for-each-ref.sh +++ b/t/t6300-for-each-ref.sh @@ -55,14 +55,22 @@ test_atom head refname:lstrip=1 heads/master test_atom head refname:lstrip=2 master test_atom head refname:lstrip=-1 master test_atom head refname:lstrip=-2 heads/master +test_atom head refname:rstrip=1 refs/heads +test_atom head refname:rstrip=2 refs +test_atom head refname:rstrip=-1 refs +test_atom head refname:rstrip=-2 refs/heads test_atom head upstream refs/remotes/origin/master test_atom head upstream:short origin/master test_atom head upstream:lstrip=2 origin/master test_atom head upstream:lstrip=-2 origin/master +test_atom head upstream:rstrip=2 refs/remotes +test_atom head upstream:rstrip=-2 refs/remotes test_atom head push refs/remotes/myfork/master test_atom head push:short myfork/master test_atom head push:lstrip=1 remotes/myfork/master test_atom head push:lstrip=-1 master +test_atom head push:rstrip=1 refs/remotes/myfork +test_atom head push:rstrip=-1 refs test_atom head objecttype commit test_atom head objectsize 171 test_atom head objectname $(git rev-parse refs/heads/master) @@ -631,4 +639,15 @@ test_expect_success 'Verify usage of %(symref:lstrip) atom' ' test_cmp expected actual ' +cat >expected <<EOF +refs +refs/heads +EOF + +test_expect_success 'Verify usage of %(symref:rstrip) atom' ' + git for-each-ref --format="%(symref:rstrip=2)" refs/heads/sym > actual && + git for-each-ref --format="%(symref:rstrip=-2)" refs/heads/sym >> actual && + test_cmp expected actual +' + test_done |