more careful error checking running gpg

src/commands/git_secret_hide.sh

@@ -161,6 +161,10 @@ function hide {
       # shellcheck disable=2086
       $gpg_local --use-agent --yes --trust-model=always --encrypt \
         $recipients -o "$output_path" "$input_path" > /dev/null 2>&1
+      local exit_code=$?
+      if [[ "$exit_code" -ne 0 ]]; then
+        _abort "problem encrypting file with gpg: exit code $exit_code"
+      fi
       # If -m option was provided, it will update unencrypted file hash
       local key="$filename"
       local hash="$file_hash"

src/commands/git_secret_killperson.sh

@@ -28,9 +28,13 @@ function killperson {
   # Getting the local `gpg` command:
   local gpg_local
   gpg_local=$(_get_gpg_local)
-
+t
   for email in "${emails[@]}"; do
     $gpg_local --batch --yes --delete-key "$email"
+      local exit_code=$?
+      if [[ "$exit_code" -ne 0 ]]; then
+        _abort "problem deleting key with gpg: exit code $exit_code"
+      fi
   done
 
   echo 'removed keys.'

src/commands/git_secret_tell.sh

@@ -11,6 +11,10 @@ function get_gpg_key_count {
   local gpg_local
   gpg_local=$(_get_gpg_local)
   $gpg_local --list-public-keys --with-colon | gawk "$AWK_GPG_KEY_CNT"
+  local exit_code=$?
+  if [[ "$exit_code" -ne 0 ]]; then
+    _abort "problem counting keys with gpg: exit code $exit_code"
+  fi
 }
 
 function tell {
@@ -68,12 +72,18 @@ function tell {
     # shellcheck disable=2154
     local keyfile="$filename"
 
+    local exit_code
     if [[ -z "$homedir" ]]; then
       $SECRETS_GPG_COMMAND --export -a "$email" > "$keyfile"
+      exit_code=$?
     else
       # It means that homedir is set as an extra argument via `-d`:
       $SECRETS_GPG_COMMAND --no-permission-warning --homedir="$homedir" \
         --export -a "$email" > "$keyfile"
+      exit_code=$?
+    fi
+    if [[ "$exit_code" -ne 0 ]]; then
+      _abort "problem exporting public key for '$email' with gpg: exit code $exit_code"
     fi
 
     if [[ ! -s "$keyfile" ]]; then
@@ -84,6 +94,10 @@ function tell {
     local gpg_local
     gpg_local=$(_get_gpg_local)
     $gpg_local --import "$keyfile" > /dev/null 2>&1
+    exit_code=$?
+    if [[ "$exit_code" -ne 0 ]]; then
+      _abort "problem importing public key with gpg: exit code $exit_code"
+    fi
   done
 
   echo "done. ${emails[*]} added as someone who know(s) the secret."