Port Hare's lib/dirs (ref/hare/dirs/xdg.ha) — XDG base-directory
lookup with mkdir-on-demand:
dirs.config(prog) — XDG_CONFIG_HOME/<prog>, fallback $HOME/.config/<prog>
dirs.cache(prog) — XDG_CACHE_HOME/<prog>, fallback $HOME/.cache/<prog>
dirs.data(prog) — XDG_DATA_HOME/<prog>, fallback $HOME/.local/share/<prog>
dirs.state(prog) — XDG_STATE_HOME/<prog>, fallback $HOME/.local/state/<prog>
Static-buffer return (256B pathbuf), overwritten on the next dirs.*
call — same contract as lib/temp. Fallback triggers on unset, empty,
or non-absolute XDG var (matches Hare's path::abs check). HOME-unset
rt_aborts (matches Hare's `as str` panic on missing HOME).
os.mkdirs(path, mode) — recursive mkdir, EEXIST-silenced. Walks the
path replacing each '/' with NUL, mkdir'ing each prefix, restoring
the slash. Path bytes must be writable (documented).
Surface skips with reason notes in dirs.ww header:
- runtime() — needs stat+getuid; defer until lib/os has them
- XDG_CONFIG_DIRS / XDG_DATA_DIRS — not in Hare's xdg.ha
- fmt::fatalf-on-mkdir — wired to rt_abort until {n}-placeholder
fmt lands
Cohort coverage in lib/dirs/dirstest.ww + test/wcc/975_dirs_run.c
(mkdtemp-rooted env state): XDG-absolute / XDG-non-absolute fallback /
XDG-unset×2.
85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
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* 975_dirs_run — execute the lib/dirs @test fixture under the C-side
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* `ww run` driver and assert exit 0.
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*
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* Workflow:
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* 1. mkdtemp /tmp/wwdirs-XXXXXX — fresh per run, no cross-run
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* stale state, no parallel-test conflicts.
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* 2. setenv the four cohort env states (see lib/dirs/dirstest.ww
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* file header for the contract).
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* 3. exec `ww run lib/dirs/dirstest.ww`. The fixture reads
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* WW_TEST_TMPDIR + the XDG_/HOME envs and asserts.
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* 4. system("rm -rf <tmpl>") to reclaim the tmpdir + the
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* auto-created child dirs (dirs.* mkdir-recursive on the way
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* down, so the directory tree is non-empty by test exit).
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*
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* Same wrapper shape as 970-974; cleanup-on-failure is rm-rf'd so a
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* test failure never leaves residue in /tmp.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/wait.h>
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static int
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runwait(const char *cmd)
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{
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int rc = system(cmd);
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if (rc == -1) return -1;
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if (WIFEXITED(rc)) return WEXITSTATUS(rc);
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return 1;
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}
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int
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main(void)
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{
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const char *bin = getenv("BIN");
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if (!bin) bin = "out/bin";
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char absbin[1024];
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if (bin[0] != '/') {
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char cwd[1024];
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if (getcwd(cwd, sizeof cwd) == NULL) return 1;
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snprintf(absbin, sizeof absbin, "%s/%s", cwd, bin);
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bin = absbin;
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}
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char cwd[1024];
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if (getcwd(cwd, sizeof cwd) == NULL) return 1;
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/* mkdtemp the per-run scratch root. */
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char tmpl[64];
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strcpy(tmpl, "/tmp/wwdirs-XXXXXX");
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if (mkdtemp(tmpl) == NULL) {
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perror("mkdtemp");
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return 1;
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}
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/* Pre-arrange env. The child `ww run` inherits these. */
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char cfg[128];
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snprintf(cfg, sizeof cfg, "%s/cfg", tmpl);
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setenv("HOME", tmpl, 1);
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setenv("XDG_CONFIG_HOME", cfg, 1);
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setenv("XDG_CACHE_HOME", "relative/path", 1); /* non-abs → fallback */
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unsetenv("XDG_DATA_HOME");
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unsetenv("XDG_STATE_HOME");
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setenv("WW_TEST_TMPDIR", tmpl, 1);
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const char *src = "lib/dirs/dirstest.ww";
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char path[1024], cmd[2048];
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snprintf(path, sizeof path, "%s/%s", cwd, src);
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snprintf(cmd, sizeof cmd, "%s/ww run %s", bin, path);
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int rc = runwait(cmd);
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/* Cleanup regardless of pass/fail — no residue under /tmp. */
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char rmcmd[256];
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snprintf(rmcmd, sizeof rmcmd, "rm -rf %s", tmpl);
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(void)system(rmcmd);
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if (rc != 0) {
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fprintf(stderr, "dirs_run FAIL: %s exited %d\n", src, rc);
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return 1;
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}
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printf("dirs_run: %s ok\n", src);
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return 0;
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}
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