In scripts meant to generate user-consumable output, it can be helpful
to resolve a symbolic ref and output the result in a shortened form,
such as for use in shell prompts. Add a new -s option to allow this.
Signed-off-by: Jan Krüger <jk@xxxxx>
---
Documentation/git-symbolic-ref.txt | 6 +++++-
builtin/symbolic-ref.c | 5 +++++
2 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/Documentation/git-symbolic-ref.txt b/Documentation/git-symbolic-ref.txt
index a05819b..7f108ce 100644
--- a/Documentation/git-symbolic-ref.txt
+++ b/Documentation/git-symbolic-ref.txt
@@ -8,7 +8,7 @@ git-symbolic-ref - Read and modify symbolic refs
SYNOPSIS
--------
[verse]
-'git symbolic-ref' [-q] [-f] [-m <reason>] <name> [<ref>]
+'git symbolic-ref' [-q] [-f] [-s] [-m <reason>] <name> [<ref>]
DESCRIPTION
-----------
@@ -38,6 +38,10 @@ OPTIONS
not a symbolic ref; instead output the SHA1 value referenced by
<name>.
+-s::
+ When showing the value of <name> as a symbolic ref, try to shorten the
+ value, e.g. from `refs/heads/master` to `master`.
+
-m::
Update the reflog for <name> with <reason>. This is valid only
when creating or updating a symbolic ref.
diff --git a/builtin/symbolic-ref.c b/builtin/symbolic-ref.c
index 2e0a86f..df8da11 100644
--- a/builtin/symbolic-ref.c
+++ b/builtin/symbolic-ref.c
@@ -9,6 +9,7 @@ static const char * const git_symbolic_ref_usage[] = {
};
static int fallback_regular_ref;
+static int shorten;
static void check_symref(const char *HEAD, int quiet)
{
@@ -32,6 +33,9 @@ static void check_symref(const char *HEAD, int quiet)
exit(1);
}
}
+ if (shorten)
+ refs_heads_master = shorten_unambiguous_ref(
+ refs_heads_master, 0);
puts(refs_heads_master);
}
@@ -44,6 +48,7 @@ int cmd_symbolic_ref(int argc, const char **argv, const char *prefix)
"suppress error message for non-symbolic (detached) refs"),
OPT_BOOLEAN('f', NULL, &fallback_regular_ref,
"fall back to showing as a regular ref"),
+ OPT_BOOLEAN('s', NULL, &shorten, "shorten ref output"),
OPT_STRING('m', NULL, &msg, "reason", "reason of the update"),
OPT_END(),
};
--
1.7.9.2.302.g3724c.dirty
--
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