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essence-os
mirror of https://gitlab.com/nakst/essence
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add github cache for download files

This commit is contained in:
nakst 2022-01-01 10:28:04 +00:00
parent 2ff51cd560
commit 34ee41e39b
2 changed files with 30 additions and 4 deletions
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2
LICENSE.md
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@ -1,6 +1,6 @@
MIT License MIT License
Copyright (c) 2017-2021 nakst and other contributors (see CONTRIBUTING.md). Copyright (c) 2017-2022 nakst and other contributors (see CONTRIBUTING.md).
Permission is hereby granted, free of charge, to any person obtaining a copy Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal of this software and associated documentation files (the "Software"), to deal

32
util/build.c
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@ -1171,6 +1171,7 @@ void GetSource(const char *parameters, const char *checksum) {
char name[1024]; char name[1024];
strcpy(name, "bin/cache/"); strcpy(name, "bin/cache/");
char *nameWithoutDirectory = name + 10;
const char *extension = url; const char *extension = url;
@ -1193,15 +1194,39 @@ void GetSource(const char *parameters, const char *checksum) {
exit(1); exit(1);
} }
char *alternateURL = NULL;
if (checksum) {
// If we're verifying the checksum of the file, then it should be okay to try downloading it from a non-official mirror.
const char *alternateURLPrefix = "https://github.com/nakst/cdn/raw/main/cache/";
alternateURL = (char *) malloc(strlen(alternateURLPrefix) + strlen(nameWithoutDirectory) + 1);
strcpy(alternateURL, alternateURLPrefix);
strcat(alternateURL, nameWithoutDirectory);
}
FILE *f = fopen(name, "rb"); FILE *f = fopen(name, "rb");
if (f) { if (f) {
// The file is cached.
fclose(f); fclose(f);
} else if (CallSystemF("curl -L %s > %s", url, name)) { } else {
CallSystemF("rm %s", name); // Remove partially downloaded file. if (alternateURL) {
exit(1); fprintf(stderr, "Attempting to download from '%s' with fallback '%s'...\n", alternateURL, url);
} else {
fprintf(stderr, "Attempting to download from '%s'...\n", url);
}
if (!alternateURL || CallSystemF("curl -f -L %s > %s", alternateURL, name)) {
if (CallSystemF("curl -L %s > %s", url, name)) {
CallSystemF("rm %s", name); // Remove partially downloaded file.
fprintf(stderr, "Error: Could not download the file at '%s'. Exiting.\n", url);
exit(1);
}
}
} }
free(alternateURL);
#ifdef __APPLE__ #ifdef __APPLE__
#define SHA256SUM "sha256 -a 256" #define SHA256SUM "sha256 -a 256"
#else #else
@ -1220,6 +1245,7 @@ void GetSource(const char *parameters, const char *checksum) {
if (CallSystemF(SHA256SUM " %s | grep %.*s > /dev/null", name, checksumLength, checksum)) { if (CallSystemF(SHA256SUM " %s | grep %.*s > /dev/null", name, checksumLength, checksum)) {
fprintf(stderr, "Checksum mismatch for file '%s' downloaded from '%s'.\n", name, url); fprintf(stderr, "Checksum mismatch for file '%s' downloaded from '%s'.\n", name, url);
CallSystemF("rm %s", name);
exit(1); exit(1);
} }
} }