edit: improve editor presence checking

Adds a check for the configured Git editor (git config core.editor) in
both commitpkg and build.sh.

Additionally, instead of blindly executing vi when all other options are
exhausted, remove it instead as it is a none standard installed editor
anyway.

Closes #106

Signed-off-by: Levente Polyak <anthraxx@archlinux.org>

2 files changed, 10 insertions, 5 deletions

diff --git a/src/commitpkg.in b/src/commitpkg.in
index 7573d9b..26117dc 100644
--- a/src/commitpkg.in
+++ b/src/commitpkg.in
@@ -198,8 +198,10 @@ if [[ -n $(git status --short --untracked-files=no) ]]; then
 			$VISUAL "$msgfile" || die
 		elif [[ -n $EDITOR ]]; then
 			$EDITOR "$msgfile" || die
+		elif giteditor=$(git config --get core.editor); then
+			$giteditor "$msgfile" || die
 		else
-			vi "$msgfile" || die
+			die "No usable editor found (tried \$GIT_EDITOR, \$VISUAL, \$EDITOR, git config [core.editor])."
 		fi
 		[[ -s $msgfile ]] || die
 		stat_busy 'Committing changes'
diff --git a/src/lib/build/build.sh b/src/lib/build/build.sh
index e32c79f..72ee4fb 100644
--- a/src/lib/build/build.sh
+++ b/src/lib/build/build.sh
@@ -335,18 +335,21 @@ pkgctl_build() {
 		# edit PKGBUILD
 		if (( EDIT )); then
 			stat_busy 'Editing PKGBUILD'
-			if [[ -n $VISUAL ]]; then
+			if [[ -n $GIT_EDITOR ]]; then
+				$GIT_EDITOR PKGBUILD || die
+			elif [[ -n $VISUAL ]]; then
 				$VISUAL PKGBUILD || die
 			elif [[ -n $EDITOR ]]; then
 				$EDITOR PKGBUILD || die
-			elif command -v vi &>/dev/null; then
-				vi PKGBUILD || die
+			elif giteditor=$(git config --get core.editor); then
+				$giteditor PKGBUILD || die
 			else
-				die "need \$VISUAL or \$EDITOR to edit the PKGBUILD"
+				die "No usable editor found (tried \$GIT_EDITOR, \$VISUAL, \$EDITOR, git config [core.editor])."
 			fi
 			stat_done
 		fi
 
+
 		# update checksums if any sources are declared
 		if (( UPDPKGSUMS )) && (( ${#source[@]} >= 1 )); then
 			updpkgsums