+static char *rcsid = "$Header$";
+/*
+ * prmdir - remove a project directory
+ *
+ * Author: Peter J. Nicklin
+ */
+#include <sys/param.h>
+#include <signal.h>
+#include <stdio.h>
+#include "getarg.h"
+#include "macro.h"
+#include "null.h"
+#include "path.h"
+#include "pdb.h"
+#include "pld.h"
+#include "slist.h"
+#include "spms.h"
+#include "system.h"
+#include "yesno.h"
+
+char CWD[PATHSIZE]; /* current working directory */
+char *CWP; /* current working project */
+char *RMFLAG = ""; /* rm "-f" flag */
+char *PGN = "prmdir"; /* program name */
+int RECURSIVE = 0; /* remove project dirs recursively */
+int UNDEFINE = 0; /* remove proj dir definitions only */
+int WANT_TO_EXIT = 0; /* advisory exit flag */
+
+main(argc, argv)
+ int argc;
+ char **argv;
+{
+ extern int PPDEBUG; /* project pathname debug flag */
+ char *getcwp(); /* get current working project */
+ char *getwd(); /* get current working directory */
+ int isfg(); /* is process in foreground? */
+ int onintr(); /* process signals */
+ int rmpdir(); /* remove a project directory */
+ int rmtyp(); /* remove project dir type labels */
+ int unpdir(); /* undefine project directory */
+ int status = 0; /* exit status */
+ int xppath(); /* expand project pathname */
+ PATH pathbuf; /* pathname struct buffer */
+ SLIST *pdirtyp; /* project directory type labels list */
+ SLIST *slinit(); /* initialize singly-linked list */
+ void typargtolist(); /* type labels -> pdirtyp list */
+
+ pdirtyp = slinit();
+ {
+ register char *s; /* option pointer */
+ while (--argc > 0 && **++argv == '-')
+ {
+ for (s = argv[0]+1; *s != '\0'; s++)
+ switch (*s)
+ {
+ case 'D':
+ PPDEBUG = YES;
+ break;
+ case 'T':
+ typargtolist(GETARG(s), pdirtyp);
+ if (*s == '\0')
+ status = 1;
+ goto endfor;
+ case 'f':
+ RMFLAG = "-f";
+ break;
+ case 'r':
+ RECURSIVE++;
+ break;
+ case 'u':
+ UNDEFINE++;
+ break;
+ default:
+ warn("bad option -%c", *s);
+ status = 1;
+ goto endfor;
+ }
+ endfor: continue;
+ }
+ }
+ if (status == 1 || argc < 1)
+ fatal("usage: prmdir [-fru] [-T type[,type...]] pdirname ...");
+
+ if ((CWP = getcwp()) == NULL)
+ fatal("no project environment");
+ if (getwd(CWD) == NULL)
+ fatal("can't find current working directory");
+ if (isfg() == YES)
+ {
+ signal(SIGHUP, onintr);
+ signal(SIGINT, onintr);
+ signal(SIGQUIT, onintr);
+ }
+
+ for (; argc > 0; ++argv, --argc)
+ {
+ if (xppath(*argv, &pathbuf) == -1)
+ {
+ patherr(*argv);
+ status = 1;
+ continue;
+ }
+ switch (pathbuf.p_mode & P_IFMT)
+ {
+ case P_IFPDIR:
+ if (SLNUM(pdirtyp) > 0)
+ status |= rmtyp(*argv, pdirtyp, &pathbuf);
+ else if (UNDEFINE)
+ status |= unpdir(&pathbuf);
+ else
+ status |= rmpdir(*argv, &pathbuf);
+ break;
+ case P_IFHOME:
+ case P_IFPROOT:
+ warn("%s is a project root directory", *argv);
+ status = 1;
+ break;
+ case P_IFNEW:
+ case P_IFREG:
+ warn("%s: no such project directory", *argv);
+ status = 1;
+ break;
+ }
+ if (WANT_TO_EXIT)
+ exit(1);
+ }
+ exit(status);
+}
+
+
+
+/*
+ * onintr() resets interrupt, quit, and hangup signals, and sets a flag
+ * which advises the process to exit at the first opportunity.
+ */
+onintr()
+{
+ signal(SIGINT, onintr);
+ signal(SIGQUIT, onintr);
+ signal(SIGHUP, onintr);
+
+ WANT_TO_EXIT = 1;
+}
+
+
+
+/*
+ * pbrmtyp() removes type labels from database buffer.
+ */
+void
+pbrmtyp(ppathname, typlist)
+ char *ppathname; /* project pathname */
+ SLIST *typlist; /* type labels list */
+{
+ char *pbgetstring(); /* get specified string field */
+ char *pdtfind(); /* find type label in buffer */
+ char *slget(); /* get next key from list */
+ char *tp; /* pointer to type label */
+ char typbuf[TYPBUFSIZE]; /* project directory types buffer */
+ int pbaddstring(); /* add string field */
+ int strlen(); /* string length */
+ void slrewind(); /* rewind list */
+ void pdtrm(); /* remove type label */
+
+ pbgetstring(PDIRTYPE, typbuf);
+ slrewind(typlist);
+ while ((tp = slget(typlist)) != NULL)
+ {
+ if (pdtfind(tp, typbuf) != NULL)
+ pdtrm(tp, typbuf);
+ else
+ warn("%s: \"%s\" type label not found", ppathname, tp);
+ }
+ pbaddstring(PDIRTYPE, typbuf);
+}
+
+
+
+/*
+ * rmd() removes a project directory. rmd() returns the status of the rm
+ * command or 1 if the user decides not to remove a project directory.
+ */
+rmd(pathname)
+ char *pathname; /* full pathname of directory */
+{
+ char cmdbuf[PATHSIZE+9]; /* command buffer */
+ char *sprintf(); /* print output to string */
+ int status; /* return status */
+ int yes(); /* is reply yes? */
+
+ if (RECURSIVE)
+ {
+ sprintf(cmdbuf, "rm %s -r %s", RMFLAG, pathname);
+ printf("%s? [yn](n): ", cmdbuf);
+ if (!yes())
+ return(1);
+ status = system(cmdbuf);
+ status >>= NBBY;
+ status &= 0xff;
+ }
+ else {
+ status = RM_DIR(pathname);
+ }
+ return(status);
+}
+
+
+
+/*
+ * rmpdir() removes a project directory. Returns 0 is successful, otherwise 1.
+ */
+rmpdir(ppathname, pb)
+ char *ppathname; /* project directory pathname */
+ PATH *pb; /* pathname struct buffer */
+{
+ int _closepdb(); /* close database without updating */
+ int closepdb(); /* close database */
+ int errpdb(); /* print database error */
+ int plen; /* length of regular pathname */
+ int pputent(); /* write buffer to database */
+ int status = 0; /* return status */
+ int strlen(); /* string length */
+ int strncmp(); /* compare n characters */
+ PATH *pd; /* pathname struct pointer */
+ PATH *readpld(); /* read project link directory entry */
+ PDB *openpdb(); /* open database */
+ PDB *pldp; /* project link directory stream */
+
+ plen = strlen(pb->p_path);
+ if (strncmp(pb->p_path, CWD, plen) == 0)
+ {
+ warn("can't remove %s from current directory", ppathname);
+ return(1);
+ }
+ if ((pldp = openpdb(PLDNAME, pb->p_project, "rw")) == NULL)
+ return(errpdb((PDB *) NULL));
+ while ((pd = readpld(pldp)) != NULL)
+ if (EQUAL(pb->p_alias, pd->p_alias))
+ continue; /* the directory itself */
+ else if (strncmp(pb->p_path, pd->p_path, plen) == 0)
+ { /* nest project directories */
+ if (pd->p_mode == P_IFPROOT)
+ { /* don't clobber projects */
+ warn("can't remove %s because project %s exists",
+ ppathname, pd->p_path);
+ status = 1;
+ break;
+ }
+ }
+ else {
+ pputent(pldp);
+ }
+ if (status == 1)
+ _closepdb(pldp);
+ else {
+ if ((status = rmd(pb->p_path)) != 0)
+ _closepdb(pldp);
+ else
+ status = closepdb(pldp);
+ }
+ return(status);
+}
+
+
+
+/*
+ * rmtyp() removes type labels from an existing project directory.
+ */
+rmtyp(ppathname, pdirtyp, pb)
+ char *ppathname; /* project directory pathname */
+ SLIST *pdirtyp; /* project directory type labels list */
+ PATH *pb; /* pathname struct buffer */
+{
+ char *pbfndkey(); /* find key */
+ int closepdb(); /* close database */
+ int errpdb(); /* print database error */
+ int pgetent(); /* load next entry into buffer */
+ int pputent(); /* write buffer to database */
+ int status = 0; /* return status */
+ PDB *openpdb(); /* open database */
+ PDB *pldp; /* project link directory stream */
+ void pbrmtyp(); /* remove type labels from buffer */
+
+ if ((pldp = openpdb(PLDNAME, pb->p_project, "rw")) == NULL)
+ return(errpdb((PDB *) NULL));
+ while (pgetent(pldp) != EOF)
+ {
+ if (pbfndkey(pb->p_alias) != NULL)
+ pbrmtyp(ppathname, pdirtyp);
+ pputent(pldp);
+ }
+ status = closepdb(pldp);
+ return(status);
+}
+
+
+
+/*
+ * typargtolist() prepends comma-separated type labels specified in typarg
+ * to typlist.
+ */
+void
+typargtolist(typarg, typlist)
+ register char *typarg; /* type labels argument */
+ SLIST *typlist; /* type labels list */
+{
+ register char *t; /* type label argument pointer */
+ char *slprepend(); /* prepend singly-linked list key */
+
+ for (t = typarg; *t != '\0'; t++)
+ continue;
+ for (; t >= typarg; t--)
+ if (t[0] == ',')
+ {
+ if (t[1] != '\0')
+ slprepend(t+1, typlist);
+ t[0] = '\0';
+ }
+ slprepend(typarg, typlist);
+}
+
+
+
+/*
+ * unpdir() undefines a project directory. Returns 0 is successful, otherwise 1.
+ */
+unpdir(pb)
+ PATH *pb; /* pathname struct buffer */
+{
+ int closepdb(); /* close database */
+ int errpdb(); /* print database error */
+ int pputent(); /* write buffer to database */
+ PATH *pd; /* pathname struct pointer */
+ PATH *readpld(); /* read project link directory entry */
+ PDB *openpdb(); /* open database */
+ PDB *pldp; /* project link directory stream */
+
+ if ((pldp = openpdb(PLDNAME, pb->p_project, "rw")) == NULL)
+ return(errpdb((PDB *) NULL));
+ while ((pd = readpld(pldp)) != NULL)
+ if (EQUAL(pb->p_alias, pd->p_alias))
+ continue;
+ else
+ pputent(pldp);
+ return(closepdb(pldp));
+}
projects / unix-history / commitdiff