The 'clean' target is noticeably slow on cygwin, even for a 'do-nothing' invocation of 'make clean'. For example, the second 'make clean' given below: $ make clean >/dev/null 2>&1 $ make clean GITGUI_VERSION = 0.21.0.85.g3e5c rm -rf git-gui lib/tclIndex po/*.msg rm -rf GIT-VERSION-FILE GIT-GUI-VARS $ has been timed at 1.934s on my laptop (an old core i5-4200M @ 2.50GHz, 8GB RAM, 1TB HDD). Notice that the Makefile, as part of processing the 'clean' target, is updating the 'GIT-VERSION-FILE' file. This is to ensure that the $(GITGUI_VERSION) make variable is set, once that file had been included. However, the 'clean' target does not use the $(GITGUI_VERSION) variable, so this is wasted effort. In order to eliminate such wasted effort, use the value of the internal $(MAKECMDGOALS) variable to only '-include GIT-VERSION-FILE' when the target is not 'clean'. (This drops the time down to 0.676s, on my laptop, giving an improvement of 65.05%). Signed-off-by: Ramsay Jones <ramsay@xxxxxxxxxxxxxxxxxxxx> --- Hi Pratyush, This is the promised 'separated out' patch to git-gui from the "speed up 'make clean'" series. Note that the speed improvement doesn't appear to be as good 'stand-alone'; it seems to be about 1.3s rather than 1.976s when called as part of the git Makefile. (Also, on Linux, the numbers are 0.091s -> 0.020s for an 78% improvement). This patch was build on git-gui 'master' branch (@3e5c911) tonight. Thanks! ATB, Ramsay Jones Makefile | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Makefile b/Makefile index f10caed..56c85a8 100644 --- a/Makefile +++ b/Makefile @@ -9,7 +9,9 @@ all:: GIT-VERSION-FILE: FORCE @$(SHELL_PATH) ./GIT-VERSION-GEN +ifneq ($(MAKECMDGOALS),clean) -include GIT-VERSION-FILE +endif uname_S := $(shell sh -c 'uname -s 2>/dev/null || echo not') uname_O := $(shell sh -c 'uname -o 2>/dev/null || echo not') -- 2.29.0
