1
0
mirror of https://github.com/git/git.git synced 2025-02-06 10:03:06 +00:00
git/version.c
Toon Claes 4771501c0a meson: ensure correct version-def.h is used
To build the libgit-version library, Meson first generates
`version-def.h` in the build directory. Then it compiles `version.c`
into a library. During compilation, Meson tells to include both the
build directory and the project root directory.

However, when the user previously has compiled Git using Make, they will
have a `version-def.h` file in project root directory as well. Because
`version-def.h` is included in `version.c` using the #include directive
with double quotes, some preprocessors will look for the header file in
the same directory as the source file. This will cause compilation of
`version.c` ran by Meson to include `version-def.h` previously made by
Make, which might be out of date.

To explicitly tell the preprocessor which `version-def.h` to use, pass
the absolute path of this file as macro GIT_VERSION_H to the
preprocessor using option `-D` and have `version.c` `#include
GIT_VERSION_H`. To remain working with other build systems than Meson,
include "version-def.h" if that macro is not defined.

Co-authored-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Toon Claes <toon@iotcl.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-01-14 11:14:54 -08:00

45 lines
802 B
C

#include "git-compat-util.h"
#include "version.h"
#include "strbuf.h"
#ifndef GIT_VERSION_H
# include "version-def.h"
#else
# include GIT_VERSION_H
#endif
const char git_version_string[] = GIT_VERSION;
const char git_built_from_commit_string[] = GIT_BUILT_FROM_COMMIT;
const char *git_user_agent(void)
{
static const char *agent = NULL;
if (!agent) {
agent = getenv("GIT_USER_AGENT");
if (!agent)
agent = GIT_USER_AGENT;
}
return agent;
}
const char *git_user_agent_sanitized(void)
{
static const char *agent = NULL;
if (!agent) {
struct strbuf buf = STRBUF_INIT;
strbuf_addstr(&buf, git_user_agent());
strbuf_trim(&buf);
for (size_t i = 0; i < buf.len; i++) {
if (buf.buf[i] <= 32 || buf.buf[i] >= 127)
buf.buf[i] = '.';
}
agent = buf.buf;
}
return agent;
}