Git-var currently only accepts a single value to print. This
is inefficient if the caller is interested in finding
multiple values, as they must invoke git-var multiple times.
This patch lets callers specify multiple variables, and
prints one per line.
Signed-off-by: Jeff King <p...@peff.net>
---
This will later let us get the "explicit" flag for free.
Documentation/git-var.txt | 9 +++++++--
builtin/var.c | 13 +++++++------
t/t0007-git-var.sh | 29 +++++++++++++++++++++++++++++
3 files changed, 43 insertions(+), 8 deletions(-)
create mode 100755 t/t0007-git-var.sh
diff --git a/Documentation/git-var.txt b/Documentation/git-var.txt
index 67edf58..53abba5 100644
--- a/Documentation/git-var.txt
+++ b/Documentation/git-var.txt
@@ -9,11 +9,16 @@ git-var - Show a git logical variable
SYNOPSIS
--------
[verse]
-'git var' ( -l | <variable> )
+'git var' ( -l | <variable>... )
DESCRIPTION
-----------
-Prints a git logical variable.
+Prints one or more git logical variables, separated by newlines.
+
+Note that some variables may contain newlines themselves (e.g.,
+`GIT_EDITOR`), and it is therefore possible to receive ambiguous output
+when requesting multiple variables. This can be mitigated by putting any
+such variables at the end of the list.
OPTIONS
-------
diff --git a/builtin/var.c b/builtin/var.c
index aedbb53..49b48f5 100644
--- a/builtin/var.c
+++ b/builtin/var.c
@@ -73,8 +73,7 @@ static int show_config(const char *var, const char *value,
void *cb)
int cmd_var(int argc, const char **argv, const char *prefix)
{
- const char *val = NULL;
- if (argc != 2)
+ if (argc < 2)
usage(var_usage);
if (strcmp(argv[1], "-l") == 0) {
@@ -83,11 +82,13 @@ int cmd_var(int argc, const char **argv, const char *prefix)
return 0;
}
git_config(git_default_config, NULL);
- val = read_var(argv[1]);
- if (!val)
- usage(var_usage);
- printf("%s\n", val);
+ while (*++argv) {
+ const char *val = read_var(*argv);
+ if (!val)
+ usage(var_usage);
+ printf("%s\n", val);
+ }
return 0;
}
diff --git a/t/t0007-git-var.sh b/t/t0007-git-var.sh
new file mode 100755
index 0000000..45a5f66
--- /dev/null
+++ b/t/t0007-git-var.sh
@@ -0,0 +1,29 @@
+#!/bin/sh
+
+test_description='basic sanity checks for git var'
+. ./test-lib.sh
+
+test_expect_success 'get GIT_AUTHOR_IDENT' '
+ test_tick &&
+ echo "A U Thor <aut...@example.com> 1112911993 -0700" >expect &&
+ git var GIT_AUTHOR_IDENT >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'get GIT_COMMITTER_IDENT' '
+ test_tick &&
+ echo "C O Mitter <commit...@example.com> 1112912053 -0700" >expect &&
+ git var GIT_COMMITTER_IDENT >actual &&
+ test_cmp expect actual
+'
+
+test_expect_success 'git var can show multiple values' '
+ cat >expect <<-\EOF &&
+ A U Thor <aut...@example.com> 1112912053 -0700
+ C O Mitter <commit...@example.com> 1112912053 -0700
+ EOF
+ git var GIT_AUTHOR_IDENT GIT_COMMITTER_IDENT >actual &&
+ test_cmp expect actual
+'
+
+test_done
--
1.8.0.207.gdf2154c
--
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