md-edit: md_nhist (max num backups)

copyparty/__main__.py

@@ -1904,7 +1904,8 @@ def add_txt(ap):
     ap2 = ap.add_argument_group("textfile options")
     ap2.add_argument("--rw-edit", metavar="T,T", type=u, default="md", help="comma-sep. list of file-extensions to allow editing with permissions read+write; all others require read+write+delete (volflag=rw_edit)")
     ap2.add_argument("--md-no-br", action="store_true", help="markdown: disable newline-is-newline; will only render a newline into the html given two trailing spaces or a double-newline (volflag=md_no_br)")
-    ap2.add_argument("--md-hist", metavar="TXT", type=u, default="s", help="where to store old version of markdown files; [\033[32ms\033[0m]=subfolder, [\033[32mv\033[0m]=volume-histpath, [\033[32mn\033[0m]=nope/disabled (volflag=md_hist)")
+    ap2.add_argument("--md-hist", metavar="TXT", type=u, default="s", help="where to store old version of textfiles; [\033[32ms\033[0m]=subfolder, [\033[32mv\033[0m]=volume-histpath, [\033[32mn\033[0m]=nope/disabled (volflag=md_hist)")
+    ap2.add_argument("--md-nhist", metavar="TXT", type=int, default=99, help="how many old versions of textfiles to keep; 0=infinite (volflag=md_nhist)")
     ap2.add_argument("--show-hist", action="store_true", help="allow browsing the .hist folder; enable to view old markdown files (volflag=show_hist)")
     ap2.add_argument("--txt-eol", metavar="TYPE", type=u, default="", help="enable EOL conversion when writing documents; supported: CRLF, LF (volflag=txt_eol)")
     ap2.add_argument("-mcr", metavar="SEC", type=int, default=60, help="the textfile editor will check for serverside changes every \033[33mSEC\033[0m seconds")

copyparty/authsrv.py

@@ -2464,7 +2464,7 @@ class AuthSrv(object):
                 if vf not in vol.flags:
                     vol.flags[vf] = getattr(self.args, ga)
 
-            zs = "forget_ip gid nrand tail_who th_qv th_qvx th_spec_p u2abort u2ow uid unp_who ups_who zip_who"
+            zs = "forget_ip gid md_nhist nrand tail_who th_qv th_qvx th_spec_p u2abort u2ow uid unp_who ups_who zip_who"
             for k in zs.split():
                 if k in vol.flags:
                     vol.flags[k] = int(vol.flags[k])

copyparty/cfg.py

@@ -123,6 +123,7 @@ def vf_vmap() -> dict[str, str]:
         "lg_sba",
         "md_sba",
         "md_hist",
+        "md_nhist",
         "nrand",
         "u2ow",
         "og_desc",
@@ -407,7 +408,8 @@ flagcats = {
     "textfiles": {
         "rw_edit=md,txt": "only require read+write to edit .md and .txt",
         "md_no_br": "newline only on double-newline or two tailing spaces",
-        "md_hist": "where to put markdown backups; s=subfolder, v=volHist, n=nope",
+        "md_hist": "where to put text-editor backups; s=subfolder, v=volHist, n=nope",
+        "md_nhist=99": "how many text-editor backups to keep",
         "show_hist": "allow browsing the .hist folder (old textfiles)",
         "exp": "enable textfile expansion; see --help-exp",
         "exp_md": "placeholders to expand in markdown files; see --help",

copyparty/httpcli.py

@@ -4172,6 +4172,16 @@ class HttpCli(object):
                     pass
             if dp:
                 atomic_move(self.log, fp, os.path.join(dp, mfile2), vfs.flags)
+                nmax = dbv.flags["md_nhist"]
+                if nmax:
+                    zs = "%s\.[0-9]+\.[0-9]{3}\.%s"
+                    ptn = re.compile(zs % (re.escape(fname), re.escape(fext)))
+                    zsl = [x for x in os.listdir(dp) if ptn.match(x)]
+                    zsl.sort(reverse=True)
+                    while len(zsl) > nmax:
+                        zs = os.path.join(dp, zsl.pop())
+                        self.log("rm %r" % (zs,))
+                        wunlink(self.log, zs, vfs.flags)
 
         assert self.parser.gen  # !rm
         p_field, _, p_data = next(self.parser.gen)

tests/util.py

@@ -163,7 +163,7 @@ class Cfg(Namespace):
         ex = "ac_convt au_vol dl_list du_iwho mcr mtab_age reg_cap s_thead s_tbody tail_tmax tail_who th_convt th_qv th_qvx ups_who ver_iwho zip_who"
         ka.update(**{k: 9 for k in ex.split()})
 
-        ex = "ctl_re db_act forget_ip gauto idp_cookie idp_store k304 loris no304 nosubtle qr_pin qr_wait re_maxage rproxy rsp_jtr rsp_slp s_wr_slp snap_wri theme themes turbo u2ow zipmaxn zipmaxs"
+        ex = "ctl_re db_act forget_ip gauto idp_cookie idp_store k304 loris md_nhist no304 nosubtle qr_pin qr_wait re_maxage rproxy rsp_jtr rsp_slp s_wr_slp snap_wri theme themes turbo u2ow zipmaxn zipmaxs"
         ka.update(**{k: 0 for k in ex.split()})
 
         ex = "ah_alg bname chdir chmod_f chpw_db csp_dl csp_ui db_xattr doctitle df epilogues exit favico fika ipa ipar html_head html_head_d html_head_s idp_login idp_logout lg_sba lg_sbf log_date log_fk md_sba md_sbf name og_desc og_site og_th og_title og_title_a og_title_v og_title_i opds_exts preadmes prologues readmes shr shr1 shr_site site smsg tcolor textfiles th_pregen txt_eol ufavico ufavico_h unlist up_site vc_url vname xff_src zipmaxt R RS SR"