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authorSteffen Prohaska <prohaska@zib.de>2009-01-18 12:00:09 (GMT)
committerJunio C Hamano <gitster@pobox.com>2009-01-26 08:26:05 (GMT)
commit026fa0d5ad9538ca76838070861531c037d7b9ba (patch)
tree62b19e4750f7e3fc44f93385f758b6a7b3ec2d6c
parenta83c88525ed6d8d940f8cf7f21e92b189f7844e3 (diff)
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Move computation of absolute paths from Makefile to runtime (in preparation for RUNTIME_PREFIX)
This commit prepares the Makefile for relocatable binaries (called RUNTIME_PREFIX). Such binaries will be able to be moved together with the system configuration files to a different directory, requiring to compute the prefix at runtime. In a first step, we make all paths relative in the Makefile and teach system_path() to add the prefix instead. We used to compute absolute paths in the Makefile and passed them to C as defines. We now pass relative paths to C and call system_path() to add the prefix at runtime. Signed-off-by: Steffen Prohaska <prohaska@zib.de> Acked-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rw-r--r--Makefile42
-rw-r--r--builtin-help.c4
-rw-r--r--exec_cmd.c13
3 files changed, 36 insertions, 23 deletions
diff --git a/Makefile b/Makefile
index 2b873fa..1d2060a 100644
--- a/Makefile
+++ b/Makefile
@@ -179,28 +179,32 @@ STRIP ?= strip
# Among the variables below, these:
# gitexecdir
# template_dir
+# mandir
+# infodir
# htmldir
# ETC_GITCONFIG (but not sysconfdir)
-# can be specified as a relative path ../some/where/else (which must begin
-# with ../); this is interpreted as relative to $(bindir) and "git" at
+# can be specified as a relative path some/where/else;
+# this is interpreted as relative to $(prefix) and "git" at
# runtime figures out where they are based on the path to the executable.
# This can help installing the suite in a relocatable way.
prefix = $(HOME)
-bindir = $(prefix)/bin
-mandir = $(prefix)/share/man
-infodir = $(prefix)/share/info
-gitexecdir = $(prefix)/libexec/git-core
+bindir_relative = bin
+bindir = $(prefix)/$(bindir_relative)
+mandir = share/man
+infodir = share/info
+gitexecdir = libexec/git-core
sharedir = $(prefix)/share
-template_dir = $(sharedir)/git-core/templates
-htmldir=$(sharedir)/doc/git-doc
+template_dir = share/git-core/templates
+htmldir = share/doc/git-doc
ifeq ($(prefix),/usr)
sysconfdir = /etc
+ETC_GITCONFIG = $(sysconfdir)/gitconfig
else
sysconfdir = $(prefix)/etc
+ETC_GITCONFIG = etc/gitconfig
endif
lib = lib
-ETC_GITCONFIG = $(sysconfdir)/gitconfig
# DESTDIR=
# default configuration for gitweb
@@ -1086,6 +1090,7 @@ ETC_GITCONFIG_SQ = $(subst ','\'',$(ETC_GITCONFIG))
DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
bindir_SQ = $(subst ','\'',$(bindir))
+bindir_relative_SQ = $(subst ','\'',$(bindir_relative))
mandir_SQ = $(subst ','\'',$(mandir))
infodir_SQ = $(subst ','\'',$(infodir))
gitexecdir_SQ = $(subst ','\'',$(gitexecdir))
@@ -1251,7 +1256,12 @@ git.o git.spec \
$(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) $<
exec_cmd.o: exec_cmd.c GIT-CFLAGS
- $(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) '-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' $<
+ $(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) \
+ '-DGIT_EXEC_PATH="$(gitexecdir_SQ)"' \
+ '-DBINDIR="$(bindir_relative_SQ)"' \
+ '-DPREFIX="$(prefix_SQ)"' \
+ $<
+
builtin-init-db.o: builtin-init-db.c GIT-CFLAGS
$(QUIET_CC)$(CC) -o $*.o -c $(ALL_CFLAGS) -DDEFAULT_GIT_TEMPLATE_DIR='"$(template_dir_SQ)"' $<
@@ -1407,17 +1417,17 @@ remove-dashes:
### Installation rules
-ifeq ($(firstword $(subst /, ,$(template_dir))),..)
-template_instdir = $(bindir)/$(template_dir)
-else
+ifeq ($(abspath $(template_dir)),$(template_dir))
template_instdir = $(template_dir)
+else
+template_instdir = $(prefix)/$(template_dir)
endif
export template_instdir
-ifeq ($(firstword $(subst /, ,$(gitexecdir))),..)
-gitexec_instdir = $(bindir)/$(gitexecdir)
-else
+ifeq ($(abspath $(gitexecdir)),$(gitexecdir))
gitexec_instdir = $(gitexecdir)
+else
+gitexec_instdir = $(prefix)/$(gitexecdir)
endif
gitexec_instdir_SQ = $(subst ','\'',$(gitexec_instdir))
export gitexec_instdir
diff --git a/builtin-help.c b/builtin-help.c
index f076efa..9b57a74 100644
--- a/builtin-help.c
+++ b/builtin-help.c
@@ -329,7 +329,7 @@ static void setup_man_path(void)
* old_path, the ':' at the end will let 'man' to try
* system-wide paths after ours to find the manual page. If
* there is old_path, we need ':' as delimiter. */
- strbuf_addstr(&new_path, GIT_MAN_PATH);
+ strbuf_addstr(&new_path, system_path(GIT_MAN_PATH));
strbuf_addch(&new_path, ':');
if (old_path)
strbuf_addstr(&new_path, old_path);
@@ -375,7 +375,7 @@ static void show_man_page(const char *git_cmd)
static void show_info_page(const char *git_cmd)
{
const char *page = cmd_to_page(git_cmd);
- setenv("INFOPATH", GIT_INFO_PATH, 1);
+ setenv("INFOPATH", system_path(GIT_INFO_PATH), 1);
execlp("info", "info", "gitman", page, NULL);
}
diff --git a/exec_cmd.c b/exec_cmd.c
index cdd35f9..114d638 100644
--- a/exec_cmd.c
+++ b/exec_cmd.c
@@ -9,11 +9,14 @@ static const char *argv0_path;
const char *system_path(const char *path)
{
- if (!is_absolute_path(path) && argv0_path) {
- struct strbuf d = STRBUF_INIT;
- strbuf_addf(&d, "%s/%s", argv0_path, path);
- path = strbuf_detach(&d, NULL);
- }
+ static const char *prefix = PREFIX;
+ struct strbuf d = STRBUF_INIT;
+
+ if (is_absolute_path(path))
+ return path;
+
+ strbuf_addf(&d, "%s/%s", prefix, path);
+ path = strbuf_detach(&d, NULL);
return path;
}