Add bash completion script (#125)

osslsigncode.bash

@@ -0,0 +1,76 @@
+# bash completion for osslsigncode                         -*- shell-script -*-
+# Copyright (C) 2021-2022 Michał Trojnara <Michal.Trojnara@stunnel.org>
+# Author: Małgorzata Olszówka <Malgorzata.Olszowka@stunnel.org>
+
+bind 'set show-all-if-ambiguous on'
+bind 'set completion-ignore-case on'
+COMP_WORDBREAKS=${COMP_WORDBREAKS//:}
+
+_comp_cmd_osslsigncode()
+{
+    local cur prev words cword
+    _init_completion || return
+
+    local commands command options timestamps rfc3161
+
+    commands="--help --version -v
+        sign add attach-signature extract-signature remove-signature verify"
+
+    timestamps="http://timestamp.digicert.com
+        http://time.certum.pl
+        http://timestamp.sectigo.com
+        http://timestamp.globalsign.com/?signature=sha2"
+
+    rfc3161="http://timestamp.digicert.com
+        http://time.certum.pl
+        http://timestamp.entrust.net/TSS/RFC3161sha2TS
+        http://tss.accv.es:8318/tsa
+        http://kstamp.keynectis.com/KSign/
+        http://sha256timestamp.ws.symantec.com/sha256/timestamp"
+
+
+    if ((cword == 1)); then
+        COMPREPLY=($(compgen -W "${commands}" -- ${cur}))
+    else
+        command=${words[1]}
+        case $prev in
+            -ac | -c | -catalog | -certs | -spc | -key | -pkcs12 | -pass | \
+            -readpass | -pkcs11engine | -pkcs11module | -in | -out | -sigin | \
+            -n | -CAfile | -CRLfile  | -TSA-CAfile | -TSA-CRLfile)
+                _filedir
+                return
+                ;;
+            -h | -require-leaf-hash)
+                COMPREPLY=($(compgen -W 'md5 sha1 sha2 sha256 sha384 sha512' \
+                    -- "$cur"))
+                return
+                ;;
+            -jp)
+                COMPREPLY=($(compgen -W 'low medium high' -- "$cur"))
+                return
+                ;;
+            -t)
+                COMPREPLY=($(compgen -W "${timestamps}" -- "$cur"))
+                return
+                ;;
+            -ts)
+                COMPREPLY=($(compgen -W "${rfc3161}" -- "$cur"))
+                return
+                ;;
+            -i | -p)
+                _known_hosts_real -- "$cur"
+                return
+                ;;
+        esac
+
+        if [[ $cur == -* ]]; then
+            # possible options for the command
+            options=$(_parse_help "$1" "$command --help" 2>/dev/null)
+            COMPREPLY=($(compgen -W "${options}" -- ${cur}))
+        fi
+    fi
+
+} &&
+    complete -F _comp_cmd_osslsigncode osslsigncode
+
+# ex: filetype=sh