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move logic of curl's http range error to abuild-fetch 

Move the logic of deleting partial downloads to abuild-fetch, which
knows if it is curl or wget that was executed.
This commit is contained in:
Natanael Copa 2018-10-03 09:23:16 +00:00
parent 07d9f3bf6b
commit c6609b4739
2 changed files with 32 additions and 31 deletions
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50
abuild-fetch.c
View File

@ -54,11 +54,32 @@ int usage(int eval)
return eval;
}
int fork_exec(char *argv[], int showerr)
{
int r = 202;
int status = 0;
pid_t childpid = fork();
if (childpid < 0 )
err(200, "fork");
if (childpid == 0) {
execvp(argv[0], argv);
if (showerr)
warn("%s", argv[0]);
_exit(201);
}
/* wait for curl/wget and get the exit code */
wait(&status);
if (WIFEXITED(status))
r = WEXITSTATUS(status);
return r;
}
/* create or wait for an NFS-safe lockfile and fetch url with curl or wget */
int fetch(char *url, const char *destdir)
{
int lockfd, status=0;
pid_t childpid;
char outfile[PATH_MAX], partfile[PATH_MAX];
char *name, *p;
struct flock fl = {
@ -122,27 +143,18 @@ int fetch(char *url, const char *destdir)
add_opt(&curlcmd, url);
add_opt(&wgetcmd, url);
childpid = fork();
if (childpid < 0 )
err(200, "fork");
status = fork_exec(curlcmd.argv, 0);
if (childpid == 0) {
execvp(curlcmd.argv[0], curlcmd.argv);
printf("Using wget\n");
execvp(wgetcmd.argv[0], wgetcmd.argv);
warn("%s", wgetcmd.argv[0]);
unlink(lockfile);
_exit(201);
}
/* CURLE_RANGE_ERROR (33)
The server does not support or accept range requests. */
if (status == 33)
unlink(partfile);
/* wait for curl/wget and get the exit code */
wait(&status);
if (WIFEXITED(status))
status = WEXITSTATUS(status);
else
status = 202;
/* is we failed execute curl, then fallback to wget */
if (status == 201)
status = fork_exec(wgetcmd.argv, 1);
/* don't rename partial downloads that we can't continue */
/* only rename completed downloads */
if (status == 0)
rename(partfile, outfile);

13
abuild.in
View File

@ -332,20 +332,9 @@ sourcecheck() {
uri_fetch() {
local uri="$1"
local status=0
mkdir -p "$SRCDEST"
msg "Fetching $uri"
abuild-fetch -d "$SRCDEST" "$uri" || status=$?
# try again when server does not support resume
if [ "$status" -eq 33 ] && command -v curl > /dev/null; then
local partfile="$SRCDEST/$(filename_from_uri $uri).part"
msg "Removing partial download and trying again: $partfile"
rm "$partfile"
uri_fetch "$uri"
else
return $status
fi
abuild-fetch -d "$SRCDEST" "$uri"
}
is_remote() {