summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorDavid Aguilar <davvid@gmail.com>2016-10-07 23:58:04 (GMT)
committerJunio C Hamano <gitster@pobox.com>2016-10-11 17:04:23 (GMT)
commit08221e3fa27396aca30cb539f006f78636782951 (patch)
tree71f5d7b2f8834931b70b19ba74355572445ae9f0
parent8827b3a8873ebfad79b324d6134c1ec4bbea5f06 (diff)
downloadgit-08221e3fa27396aca30cb539f006f78636782951.zip
git-08221e3fa27396aca30cb539f006f78636782951.tar.gz
git-08221e3fa27396aca30cb539f006f78636782951.tar.bz2
mergetool: move main program flow into a main() function
Make it easier to follow the program's flow by isolating all logic into functions. Isolate the main execution code path into a single unit instead of having prompt_after_failed_merge() interrupt it partyway through. The use of a main() function is borrowing a convention from C, Python, Perl, and many other languages. This helps readers more familiar with other languages understand the purpose of each function when diving into the codebase with fresh eyes. Signed-off-by: David Aguilar <davvid@gmail.com> Reviewed-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Junio C Hamano <gitster@pobox.com>
-rwxr-xr-xgit-mergetool.sh180
1 files changed, 93 insertions, 87 deletions
diff --git a/git-mergetool.sh b/git-mergetool.sh
index 300ce7f..b2cd0a4 100755
--- a/git-mergetool.sh
+++ b/git-mergetool.sh
@@ -366,51 +366,6 @@ merge_file () {
return 0
}
-prompt=$(git config --bool mergetool.prompt)
-guessed_merge_tool=false
-
-while test $# != 0
-do
- case "$1" in
- --tool-help=*)
- TOOL_MODE=${1#--tool-help=}
- show_tool_help
- ;;
- --tool-help)
- show_tool_help
- ;;
- -t|--tool*)
- case "$#,$1" in
- *,*=*)
- merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)')
- ;;
- 1,*)
- usage ;;
- *)
- merge_tool="$2"
- shift ;;
- esac
- ;;
- -y|--no-prompt)
- prompt=false
- ;;
- --prompt)
- prompt=true
- ;;
- --)
- shift
- break
- ;;
- -*)
- usage
- ;;
- *)
- break
- ;;
- esac
- shift
-done
-
prompt_after_failed_merge () {
while true
do
@@ -427,57 +382,108 @@ prompt_after_failed_merge () {
done
}
-git_dir_init
-require_work_tree
+main () {
+ prompt=$(git config --bool mergetool.prompt)
+ guessed_merge_tool=false
+
+ while test $# != 0
+ do
+ case "$1" in
+ --tool-help=*)
+ TOOL_MODE=${1#--tool-help=}
+ show_tool_help
+ ;;
+ --tool-help)
+ show_tool_help
+ ;;
+ -t|--tool*)
+ case "$#,$1" in
+ *,*=*)
+ merge_tool=$(expr "z$1" : 'z-[^=]*=\(.*\)')
+ ;;
+ 1,*)
+ usage ;;
+ *)
+ merge_tool="$2"
+ shift ;;
+ esac
+ ;;
+ -y|--no-prompt)
+ prompt=false
+ ;;
+ --prompt)
+ prompt=true
+ ;;
+ --)
+ shift
+ break
+ ;;
+ -*)
+ usage
+ ;;
+ *)
+ break
+ ;;
+ esac
+ shift
+ done
+
+ git_dir_init
+ require_work_tree
-if test -z "$merge_tool"
-then
- # Check if a merge tool has been configured
- merge_tool=$(get_configured_merge_tool)
- # Try to guess an appropriate merge tool if no tool has been set.
if test -z "$merge_tool"
then
- merge_tool=$(guess_merge_tool) || exit
- guessed_merge_tool=true
+ # Check if a merge tool has been configured
+ merge_tool=$(get_configured_merge_tool)
+ # Try to guess an appropriate merge tool if no tool has been set.
+ if test -z "$merge_tool"
+ then
+ merge_tool=$(guess_merge_tool) || exit
+ guessed_merge_tool=true
+ fi
fi
-fi
-merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
-merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
-
-files=
+ merge_keep_backup="$(git config --bool mergetool.keepBackup || echo true)"
+ merge_keep_temporaries="$(git config --bool mergetool.keepTemporaries || echo false)"
-if test $# -eq 0
-then
- cd_to_toplevel
+ files=
- if test -e "$GIT_DIR/MERGE_RR"
+ if test $# -eq 0
then
- files=$(git rerere remaining)
+ cd_to_toplevel
+
+ if test -e "$GIT_DIR/MERGE_RR"
+ then
+ files=$(git rerere remaining)
+ else
+ files=$(git ls-files -u |
+ sed -e 's/^[^ ]* //' | sort -u)
+ fi
else
- files=$(git ls-files -u | sed -e 's/^[^ ]* //' | sort -u)
+ files=$(git ls-files -u -- "$@" |
+ sed -e 's/^[^ ]* //' | sort -u)
fi
-else
- files=$(git ls-files -u -- "$@" | sed -e 's/^[^ ]* //' | sort -u)
-fi
-
-if test -z "$files"
-then
- echo "No files need merging"
- exit 0
-fi
-
-printf "Merging:\n"
-printf "%s\n" "$files"
-
-rc=0
-for i in $files
-do
- printf "\n"
- if ! merge_file "$i"
+
+ if test -z "$files"
then
- rc=1
- prompt_after_failed_merge || exit 1
+ echo "No files need merging"
+ exit 0
fi
-done
-exit $rc
+ printf "Merging:\n"
+ printf "%s\n" "$files"
+
+ rc=0
+ for i in $files
+ do
+ printf "\n"
+ if ! merge_file "$i"
+ then
+ rc=1
+ prompt_after_failed_merge || exit 1
+ fi
+ done
+
+ exit $rc
+}
+
+main "$@"