From: monarch <ayushoffinfo17@gmail•com>
To: git@vger•kernel.org
Cc: monarch <ayushoffinfo17@gmail•com>
Subject: [PATCH] config: add "hostname" condition to includeIf
Date: Fri, 22 Aug 2025 14:19:09 +0530 [thread overview]
Message-ID: <20250822084910.98308-1-ayushoffinfo17@gmail.com> (raw)
Teach "includeIf" to include configuration based on the machine's hostname,
as returned by gethostname(2).
Example:
[includeIf "hostname:work-laptop"]
path = ~/.gitconfig.work
[includeIf "hostname:home-pc"]
path = ~/.gitconfig.home
This allows users to write host-specific configuration without separate branches.
Signed-off-by: monarch <ayushoffinfo17@gmail•com>
---
config.c | 37 +++++++++++++++++++++++++++++++------
1 file changed, 31 insertions(+), 6 deletions(-)
diff --git a/config.c b/config.c
index e0ff35d426..dbc1a2bc75 100644
--- a/config.c
+++ b/config.c
@@ -7,6 +7,7 @@
*/
#include "git-compat-util.h"
+#include <unistd.h>
#include "abspath.h"
#include "date.h"
#include "branch.h"
@@ -391,23 +392,47 @@ static int include_by_remote_url(struct config_include_data *inc,
inc->remote_urls);
}
+static int include_by_hostname(const char *cond, size_t cond_len)
+{
+ char actual_hostname[1024];
+ struct strbuf target_hostname = STRBUF_INIT;
+ int ret = 0;
+
+ // Make sure the call to gethostname is correct and its return value is checked.
+ if (gethostname(actual_hostname, sizeof(actual_hostname)) != 0)
+ return 0; // If it fails, the condition is false.
+
+ strbuf_add(&target_hostname, cond, cond_len);
+
+ // The core of the logic: strcmp returns 0 when strings are equal.
+ if (strcmp(actual_hostname, target_hostname.buf) == 0)
+ ret = 1; // Success, the hostnames match!
+
+ strbuf_release(&target_hostname);
+ return ret;
+}
+
static int include_condition_is_true(const struct key_value_info *kvi,
- struct config_include_data *inc,
- const char *cond, size_t cond_len)
+ struct config_include_data *inc,
+ const char *cond, size_t cond_len)
{
- const struct config_options *opts = inc->opts;
+const struct config_options *opts = inc->opts;
+
+
if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len))
return include_by_gitdir(kvi, opts, cond, cond_len, 0);
else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len))
return include_by_gitdir(kvi, opts, cond, cond_len, 1);
- else if (skip_prefix_mem(cond, cond_len, "onbranch:", &cond, &cond_len))
+ else if (skip_prefix_mem(cond, cond_len, "onbranch:", &cond, cond_len))
return include_by_branch(inc, cond, cond_len);
else if (skip_prefix_mem(cond, cond_len, "hasconfig:remote.*.url:", &cond,
- &cond_len))
+ &cond_len))
return include_by_remote_url(inc, cond, cond_len);
+ else if (skip_prefix_mem(cond, cond_len, "hostname:", &cond, &cond_len))
+ return include_by_hostname(cond, cond_len);
- /* unknown conditionals are always false */
+/* unknown conditionals are always false */
return 0;
}
--
2.43.0
next reply other threads:[~2025-08-22 8:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-08-22 8:49 monarch [this message]
2025-08-27 19:23 ` [PATCH] config: add "hostname" condition to includeIf Ayush Sharma
2025-08-27 20:54 ` Eric Sunshine
-- strict thread matches above, loose matches on Subject: below --
2025-08-22 8:35 monarch
2025-08-22 8:22 monarch
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